filename | src/sh4/sh4core.c |
changeset | 359:c588dce7ebde |
prev | 312:2c34bdc36cbd |
next | 367:9c52dcbad3fb |
author | nkeynes |
date | Thu Aug 23 12:33:27 2007 +0000 (14 years ago) |
permissions | -rw-r--r-- |
last change | Commit decoder generator Translator work in progress Fix mac.l, mac.w in emu core |
file | annotate | diff | log | raw |
nkeynes@23 | 1 | /** |
nkeynes@359 | 2 | * $Id: sh4core.c,v 1.41 2007-08-23 12:33:27 nkeynes Exp $ |
nkeynes@23 | 3 | * |
nkeynes@23 | 4 | * SH4 emulation core, and parent module for all the SH4 peripheral |
nkeynes@23 | 5 | * modules. |
nkeynes@23 | 6 | * |
nkeynes@23 | 7 | * Copyright (c) 2005 Nathan Keynes. |
nkeynes@23 | 8 | * |
nkeynes@23 | 9 | * This program is free software; you can redistribute it and/or modify |
nkeynes@23 | 10 | * it under the terms of the GNU General Public License as published by |
nkeynes@23 | 11 | * the Free Software Foundation; either version 2 of the License, or |
nkeynes@23 | 12 | * (at your option) any later version. |
nkeynes@23 | 13 | * |
nkeynes@23 | 14 | * This program is distributed in the hope that it will be useful, |
nkeynes@23 | 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
nkeynes@23 | 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
nkeynes@23 | 17 | * GNU General Public License for more details. |
nkeynes@23 | 18 | */ |
nkeynes@23 | 19 | |
nkeynes@35 | 20 | #define MODULE sh4_module |
nkeynes@1 | 21 | #include <math.h> |
nkeynes@1 | 22 | #include "dream.h" |
nkeynes@84 | 23 | #include "sh4/sh4core.h" |
nkeynes@84 | 24 | #include "sh4/sh4mmio.h" |
nkeynes@84 | 25 | #include "sh4/intc.h" |
nkeynes@1 | 26 | #include "mem.h" |
nkeynes@23 | 27 | #include "clock.h" |
nkeynes@102 | 28 | #include "syscall.h" |
nkeynes@1 | 29 | |
nkeynes@157 | 30 | #define SH4_CALLTRACE 1 |
nkeynes@157 | 31 | |
nkeynes@123 | 32 | #define MAX_INT 0x7FFFFFFF |
nkeynes@123 | 33 | #define MIN_INT 0x80000000 |
nkeynes@123 | 34 | #define MAX_INTF 2147483647.0 |
nkeynes@123 | 35 | #define MIN_INTF -2147483648.0 |
nkeynes@123 | 36 | |
nkeynes@27 | 37 | /* CPU-generated exception code/vector pairs */ |
nkeynes@27 | 38 | #define EXC_POWER_RESET 0x000 /* vector special */ |
nkeynes@27 | 39 | #define EXC_MANUAL_RESET 0x020 |
nkeynes@208 | 40 | #define EXC_READ_ADDR_ERR 0x0E0 |
nkeynes@208 | 41 | #define EXC_WRITE_ADDR_ERR 0x100 |
nkeynes@27 | 42 | #define EXC_SLOT_ILLEGAL 0x1A0 |
nkeynes@27 | 43 | #define EXC_ILLEGAL 0x180 |
nkeynes@27 | 44 | #define EXC_TRAP 0x160 |
nkeynes@27 | 45 | #define EXC_FPDISABLE 0x800 |
nkeynes@246 | 46 | #define EXC_SLOT_FPDISABLE 0x820 |
nkeynes@246 | 47 | |
nkeynes@246 | 48 | #define EXV_EXCEPTION 0x100 /* General exception vector */ |
nkeynes@246 | 49 | #define EXV_TLBMISS 0x400 /* TLB-miss exception vector */ |
nkeynes@246 | 50 | #define EXV_INTERRUPT 0x600 /* External interrupt vector */ |
nkeynes@27 | 51 | |
nkeynes@23 | 52 | /********************** SH4 Module Definition ****************************/ |
nkeynes@23 | 53 | |
nkeynes@23 | 54 | void sh4_init( void ); |
nkeynes@23 | 55 | void sh4_reset( void ); |
nkeynes@30 | 56 | uint32_t sh4_run_slice( uint32_t ); |
nkeynes@23 | 57 | void sh4_start( void ); |
nkeynes@23 | 58 | void sh4_stop( void ); |
nkeynes@23 | 59 | void sh4_save_state( FILE *f ); |
nkeynes@23 | 60 | int sh4_load_state( FILE *f ); |
nkeynes@359 | 61 | void sh4_accept_interrupt( void ); |
nkeynes@16 | 62 | |
nkeynes@15 | 63 | struct dreamcast_module sh4_module = { "SH4", sh4_init, sh4_reset, |
nkeynes@23 | 64 | NULL, sh4_run_slice, sh4_stop, |
nkeynes@23 | 65 | sh4_save_state, sh4_load_state }; |
nkeynes@15 | 66 | |
nkeynes@1 | 67 | struct sh4_registers sh4r; |
nkeynes@1 | 68 | |
nkeynes@1 | 69 | void sh4_init(void) |
nkeynes@1 | 70 | { |
nkeynes@1 | 71 | register_io_regions( mmio_list_sh4mmio ); |
nkeynes@312 | 72 | MMU_init(); |
nkeynes@27 | 73 | sh4_reset(); |
nkeynes@1 | 74 | } |
nkeynes@1 | 75 | |
nkeynes@1 | 76 | void sh4_reset(void) |
nkeynes@1 | 77 | { |
nkeynes@19 | 78 | /* zero everything out, for the sake of having a consistent state. */ |
nkeynes@19 | 79 | memset( &sh4r, 0, sizeof(sh4r) ); |
nkeynes@27 | 80 | |
nkeynes@27 | 81 | /* Resume running if we were halted */ |
nkeynes@27 | 82 | sh4r.sh4_state = SH4_STATE_RUNNING; |
nkeynes@27 | 83 | |
nkeynes@1 | 84 | sh4r.pc = 0xA0000000; |
nkeynes@1 | 85 | sh4r.new_pc= 0xA0000002; |
nkeynes@1 | 86 | sh4r.vbr = 0x00000000; |
nkeynes@1 | 87 | sh4r.fpscr = 0x00040001; |
nkeynes@1 | 88 | sh4r.sr = 0x700000F0; |
nkeynes@27 | 89 | |
nkeynes@27 | 90 | /* Mem reset will do this, but if we want to reset _just_ the SH4... */ |
nkeynes@27 | 91 | MMIO_WRITE( MMU, EXPEVT, EXC_POWER_RESET ); |
nkeynes@27 | 92 | |
nkeynes@27 | 93 | /* Peripheral modules */ |
nkeynes@260 | 94 | CPG_reset(); |
nkeynes@157 | 95 | INTC_reset(); |
nkeynes@312 | 96 | MMU_reset(); |
nkeynes@157 | 97 | TMU_reset(); |
nkeynes@32 | 98 | SCIF_reset(); |
nkeynes@1 | 99 | } |
nkeynes@1 | 100 | |
nkeynes@43 | 101 | static struct breakpoint_struct sh4_breakpoints[MAX_BREAKPOINTS]; |
nkeynes@43 | 102 | static int sh4_breakpoint_count = 0; |
nkeynes@235 | 103 | static uint16_t *sh4_icache = NULL; |
nkeynes@235 | 104 | static uint32_t sh4_icache_addr = 0; |
nkeynes@43 | 105 | |
nkeynes@43 | 106 | void sh4_set_breakpoint( uint32_t pc, int type ) |
nkeynes@43 | 107 | { |
nkeynes@43 | 108 | sh4_breakpoints[sh4_breakpoint_count].address = pc; |
nkeynes@43 | 109 | sh4_breakpoints[sh4_breakpoint_count].type = type; |
nkeynes@43 | 110 | sh4_breakpoint_count++; |
nkeynes@43 | 111 | } |
nkeynes@43 | 112 | |
nkeynes@43 | 113 | gboolean sh4_clear_breakpoint( uint32_t pc, int type ) |
nkeynes@43 | 114 | { |
nkeynes@43 | 115 | int i; |
nkeynes@43 | 116 | |
nkeynes@43 | 117 | for( i=0; i<sh4_breakpoint_count; i++ ) { |
nkeynes@43 | 118 | if( sh4_breakpoints[i].address == pc && |
nkeynes@43 | 119 | sh4_breakpoints[i].type == type ) { |
nkeynes@43 | 120 | while( ++i < sh4_breakpoint_count ) { |
nkeynes@43 | 121 | sh4_breakpoints[i-1].address = sh4_breakpoints[i].address; |
nkeynes@43 | 122 | sh4_breakpoints[i-1].type = sh4_breakpoints[i].type; |
nkeynes@43 | 123 | } |
nkeynes@43 | 124 | sh4_breakpoint_count--; |
nkeynes@43 | 125 | return TRUE; |
nkeynes@43 | 126 | } |
nkeynes@43 | 127 | } |
nkeynes@43 | 128 | return FALSE; |
nkeynes@43 | 129 | } |
nkeynes@43 | 130 | |
nkeynes@43 | 131 | int sh4_get_breakpoint( uint32_t pc ) |
nkeynes@43 | 132 | { |
nkeynes@43 | 133 | int i; |
nkeynes@43 | 134 | for( i=0; i<sh4_breakpoint_count; i++ ) { |
nkeynes@43 | 135 | if( sh4_breakpoints[i].address == pc ) |
nkeynes@43 | 136 | return sh4_breakpoints[i].type; |
nkeynes@43 | 137 | } |
nkeynes@43 | 138 | return 0; |
nkeynes@43 | 139 | } |
nkeynes@43 | 140 | |
nkeynes@30 | 141 | uint32_t sh4_run_slice( uint32_t nanosecs ) |
nkeynes@1 | 142 | { |
nkeynes@23 | 143 | int i; |
nkeynes@265 | 144 | sh4r.slice_cycle = 0; |
nkeynes@23 | 145 | |
nkeynes@27 | 146 | if( sh4r.sh4_state != SH4_STATE_RUNNING ) { |
nkeynes@265 | 147 | if( sh4r.event_pending < nanosecs ) { |
nkeynes@265 | 148 | sh4r.sh4_state = SH4_STATE_RUNNING; |
nkeynes@265 | 149 | sh4r.slice_cycle = sh4r.event_pending; |
nkeynes@265 | 150 | } |
nkeynes@23 | 151 | } |
nkeynes@27 | 152 | |
nkeynes@235 | 153 | if( sh4_breakpoint_count == 0 ) { |
nkeynes@265 | 154 | for( ; sh4r.slice_cycle < nanosecs; sh4r.slice_cycle += sh4_cpu_period ) { |
nkeynes@265 | 155 | if( SH4_EVENT_PENDING() ) { |
nkeynes@265 | 156 | if( sh4r.event_types & PENDING_EVENT ) { |
nkeynes@265 | 157 | event_execute(); |
nkeynes@265 | 158 | } |
nkeynes@265 | 159 | /* Eventq execute may (quite likely) deliver an immediate IRQ */ |
nkeynes@265 | 160 | if( sh4r.event_types & PENDING_IRQ ) { |
nkeynes@265 | 161 | sh4_accept_interrupt(); |
nkeynes@265 | 162 | } |
nkeynes@265 | 163 | } |
nkeynes@235 | 164 | if( !sh4_execute_instruction() ) { |
nkeynes@43 | 165 | break; |
nkeynes@43 | 166 | } |
nkeynes@43 | 167 | } |
nkeynes@235 | 168 | } else { |
nkeynes@265 | 169 | for( ;sh4r.slice_cycle < nanosecs; sh4r.slice_cycle += sh4_cpu_period ) { |
nkeynes@265 | 170 | if( SH4_EVENT_PENDING() ) { |
nkeynes@265 | 171 | if( sh4r.event_types & PENDING_EVENT ) { |
nkeynes@265 | 172 | event_execute(); |
nkeynes@265 | 173 | } |
nkeynes@265 | 174 | /* Eventq execute may (quite likely) deliver an immediate IRQ */ |
nkeynes@265 | 175 | if( sh4r.event_types & PENDING_IRQ ) { |
nkeynes@265 | 176 | sh4_accept_interrupt(); |
nkeynes@265 | 177 | } |
nkeynes@265 | 178 | } |
nkeynes@265 | 179 | |
nkeynes@235 | 180 | if( !sh4_execute_instruction() ) |
nkeynes@235 | 181 | break; |
nkeynes@235 | 182 | #ifdef ENABLE_DEBUG_MODE |
nkeynes@235 | 183 | for( i=0; i<sh4_breakpoint_count; i++ ) { |
nkeynes@235 | 184 | if( sh4_breakpoints[i].address == sh4r.pc ) { |
nkeynes@235 | 185 | break; |
nkeynes@235 | 186 | } |
nkeynes@235 | 187 | } |
nkeynes@235 | 188 | if( i != sh4_breakpoint_count ) { |
nkeynes@235 | 189 | dreamcast_stop(); |
nkeynes@235 | 190 | if( sh4_breakpoints[i].type == BREAK_ONESHOT ) |
nkeynes@235 | 191 | sh4_clear_breakpoint( sh4r.pc, BREAK_ONESHOT ); |
nkeynes@235 | 192 | break; |
nkeynes@235 | 193 | } |
nkeynes@235 | 194 | #endif |
nkeynes@43 | 195 | } |
nkeynes@27 | 196 | } |
nkeynes@30 | 197 | |
nkeynes@30 | 198 | /* If we aborted early, but the cpu is still technically running, |
nkeynes@30 | 199 | * we're doing a hard abort - cut the timeslice back to what we |
nkeynes@30 | 200 | * actually executed |
nkeynes@30 | 201 | */ |
nkeynes@53 | 202 | if( sh4r.slice_cycle != nanosecs && sh4r.sh4_state == SH4_STATE_RUNNING ) { |
nkeynes@53 | 203 | nanosecs = sh4r.slice_cycle; |
nkeynes@27 | 204 | } |
nkeynes@27 | 205 | if( sh4r.sh4_state != SH4_STATE_STANDBY ) { |
nkeynes@30 | 206 | TMU_run_slice( nanosecs ); |
nkeynes@30 | 207 | SCIF_run_slice( nanosecs ); |
nkeynes@27 | 208 | } |
nkeynes@30 | 209 | return nanosecs; |
nkeynes@1 | 210 | } |
nkeynes@1 | 211 | |
nkeynes@1 | 212 | void sh4_stop(void) |
nkeynes@1 | 213 | { |
nkeynes@27 | 214 | |
nkeynes@1 | 215 | } |
nkeynes@1 | 216 | |
nkeynes@23 | 217 | void sh4_save_state( FILE *f ) |
nkeynes@16 | 218 | { |
nkeynes@16 | 219 | fwrite( &sh4r, sizeof(sh4r), 1, f ); |
nkeynes@312 | 220 | MMU_save_state( f ); |
nkeynes@157 | 221 | INTC_save_state( f ); |
nkeynes@53 | 222 | TMU_save_state( f ); |
nkeynes@23 | 223 | SCIF_save_state( f ); |
nkeynes@16 | 224 | } |
nkeynes@16 | 225 | |
nkeynes@23 | 226 | int sh4_load_state( FILE * f ) |
nkeynes@16 | 227 | { |
nkeynes@18 | 228 | fread( &sh4r, sizeof(sh4r), 1, f ); |
nkeynes@312 | 229 | MMU_load_state( f ); |
nkeynes@157 | 230 | INTC_load_state( f ); |
nkeynes@53 | 231 | TMU_load_state( f ); |
nkeynes@23 | 232 | return SCIF_load_state( f ); |
nkeynes@16 | 233 | } |
nkeynes@16 | 234 | |
nkeynes@23 | 235 | /********************** SH4 emulation core ****************************/ |
nkeynes@23 | 236 | |
nkeynes@23 | 237 | void sh4_set_pc( int pc ) |
nkeynes@23 | 238 | { |
nkeynes@23 | 239 | sh4r.pc = pc; |
nkeynes@23 | 240 | sh4r.new_pc = pc+2; |
nkeynes@23 | 241 | } |
nkeynes@23 | 242 | |
nkeynes@246 | 243 | #define UNDEF(ir) return sh4_raise_slot_exception(EXC_ILLEGAL, EXC_SLOT_ILLEGAL) |
nkeynes@27 | 244 | #define UNIMP(ir) do{ ERROR( "Halted on unimplemented instruction at %08x, opcode = %04x", sh4r.pc, ir ); dreamcast_stop(); return FALSE; }while(0) |
nkeynes@1 | 245 | |
nkeynes@157 | 246 | #if(SH4_CALLTRACE == 1) |
nkeynes@157 | 247 | #define MAX_CALLSTACK 32 |
nkeynes@157 | 248 | static struct call_stack { |
nkeynes@157 | 249 | sh4addr_t call_addr; |
nkeynes@157 | 250 | sh4addr_t target_addr; |
nkeynes@157 | 251 | sh4addr_t stack_pointer; |
nkeynes@157 | 252 | } call_stack[MAX_CALLSTACK]; |
nkeynes@157 | 253 | |
nkeynes@157 | 254 | static int call_stack_depth = 0; |
nkeynes@157 | 255 | int sh4_call_trace_on = 0; |
nkeynes@157 | 256 | |
nkeynes@157 | 257 | static inline trace_call( sh4addr_t source, sh4addr_t dest ) |
nkeynes@157 | 258 | { |
nkeynes@157 | 259 | if( call_stack_depth < MAX_CALLSTACK ) { |
nkeynes@157 | 260 | call_stack[call_stack_depth].call_addr = source; |
nkeynes@157 | 261 | call_stack[call_stack_depth].target_addr = dest; |
nkeynes@157 | 262 | call_stack[call_stack_depth].stack_pointer = sh4r.r[15]; |
nkeynes@157 | 263 | } |
nkeynes@157 | 264 | call_stack_depth++; |
nkeynes@157 | 265 | } |
nkeynes@157 | 266 | |
nkeynes@157 | 267 | static inline trace_return( sh4addr_t source, sh4addr_t dest ) |
nkeynes@157 | 268 | { |
nkeynes@157 | 269 | if( call_stack_depth > 0 ) { |
nkeynes@157 | 270 | call_stack_depth--; |
nkeynes@157 | 271 | } |
nkeynes@157 | 272 | } |
nkeynes@157 | 273 | |
nkeynes@157 | 274 | void fprint_stack_trace( FILE *f ) |
nkeynes@157 | 275 | { |
nkeynes@157 | 276 | int i = call_stack_depth -1; |
nkeynes@157 | 277 | if( i >= MAX_CALLSTACK ) |
nkeynes@157 | 278 | i = MAX_CALLSTACK - 1; |
nkeynes@157 | 279 | for( ; i >= 0; i-- ) { |
nkeynes@157 | 280 | fprintf( f, "%d. Call from %08X => %08X, SP=%08X\n", |
nkeynes@157 | 281 | (call_stack_depth - i), call_stack[i].call_addr, |
nkeynes@157 | 282 | call_stack[i].target_addr, call_stack[i].stack_pointer ); |
nkeynes@157 | 283 | } |
nkeynes@157 | 284 | } |
nkeynes@157 | 285 | |
nkeynes@157 | 286 | #define TRACE_CALL( source, dest ) trace_call(source, dest) |
nkeynes@157 | 287 | #define TRACE_RETURN( source, dest ) trace_return(source, dest) |
nkeynes@157 | 288 | #else |
nkeynes@157 | 289 | #define TRACE_CALL( dest, rts ) |
nkeynes@157 | 290 | #define TRACE_RETURN( source, dest ) |
nkeynes@157 | 291 | #endif |
nkeynes@157 | 292 | |
nkeynes@246 | 293 | #define RAISE( x, v ) do{ \ |
nkeynes@1 | 294 | if( sh4r.vbr == 0 ) { \ |
nkeynes@1 | 295 | ERROR( "%08X: VBR not initialized while raising exception %03X, halting", sh4r.pc, x ); \ |
nkeynes@104 | 296 | dreamcast_stop(); return FALSE; \ |
nkeynes@1 | 297 | } else { \ |
nkeynes@246 | 298 | sh4r.spc = sh4r.pc; \ |
nkeynes@1 | 299 | sh4r.ssr = sh4_read_sr(); \ |
nkeynes@1 | 300 | sh4r.sgr = sh4r.r[15]; \ |
nkeynes@1 | 301 | MMIO_WRITE(MMU,EXPEVT,x); \ |
nkeynes@1 | 302 | sh4r.pc = sh4r.vbr + v; \ |
nkeynes@1 | 303 | sh4r.new_pc = sh4r.pc + 2; \ |
nkeynes@1 | 304 | sh4_load_sr( sh4r.ssr |SR_MD|SR_BL|SR_RB ); \ |
nkeynes@246 | 305 | if( sh4r.in_delay_slot ) { \ |
nkeynes@246 | 306 | sh4r.in_delay_slot = 0; \ |
nkeynes@246 | 307 | sh4r.spc -= 2; \ |
nkeynes@246 | 308 | } \ |
nkeynes@1 | 309 | } \ |
nkeynes@27 | 310 | return TRUE; } while(0) |
nkeynes@229 | 311 | |
nkeynes@10 | 312 | #define MEM_READ_BYTE( addr ) sh4_read_byte(addr) |
nkeynes@10 | 313 | #define MEM_READ_WORD( addr ) sh4_read_word(addr) |
nkeynes@10 | 314 | #define MEM_READ_LONG( addr ) sh4_read_long(addr) |
nkeynes@10 | 315 | #define MEM_WRITE_BYTE( addr, val ) sh4_write_byte(addr, val) |
nkeynes@10 | 316 | #define MEM_WRITE_WORD( addr, val ) sh4_write_word(addr, val) |
nkeynes@10 | 317 | #define MEM_WRITE_LONG( addr, val ) sh4_write_long(addr, val) |
nkeynes@1 | 318 | |
nkeynes@1 | 319 | #define FP_WIDTH (IS_FPU_DOUBLESIZE() ? 8 : 4) |
nkeynes@1 | 320 | |
nkeynes@124 | 321 | #define MEM_FP_READ( addr, reg ) sh4_read_float( addr, reg ); |
nkeynes@124 | 322 | #define MEM_FP_WRITE( addr, reg ) sh4_write_float( addr, reg ); |
nkeynes@84 | 323 | |
nkeynes@246 | 324 | #define CHECKPRIV() if( !IS_SH4_PRIVMODE() ) return sh4_raise_slot_exception( EXC_ILLEGAL, EXC_SLOT_ILLEGAL ) |
nkeynes@246 | 325 | #define CHECKRALIGN16(addr) if( (addr)&0x01 ) return sh4_raise_exception( EXC_READ_ADDR_ERR ) |
nkeynes@246 | 326 | #define CHECKRALIGN32(addr) if( (addr)&0x03 ) return sh4_raise_exception( EXC_READ_ADDR_ERR ) |
nkeynes@246 | 327 | #define CHECKWALIGN16(addr) if( (addr)&0x01 ) return sh4_raise_exception( EXC_WRITE_ADDR_ERR ) |
nkeynes@246 | 328 | #define CHECKWALIGN32(addr) if( (addr)&0x03 ) return sh4_raise_exception( EXC_WRITE_ADDR_ERR ) |
nkeynes@208 | 329 | |
nkeynes@359 | 330 | #define CHECKFPUEN() if( !IS_FPU_ENABLED() ) { if( ir == 0xFFFD ) { UNDEF(ir); } else { return sh4_raise_slot_exception( EXC_FPDISABLE, EXC_SLOT_FPDISABLE ); } } |
nkeynes@84 | 331 | #define CHECKDEST(p) if( (p) == 0 ) { ERROR( "%08X: Branch/jump to NULL, CPU halted", sh4r.pc ); dreamcast_stop(); return FALSE; } |
nkeynes@246 | 332 | #define CHECKSLOTILLEGAL() if(sh4r.in_delay_slot) return sh4_raise_exception(EXC_SLOT_ILLEGAL) |
nkeynes@1 | 333 | |
nkeynes@1 | 334 | static void sh4_switch_banks( ) |
nkeynes@1 | 335 | { |
nkeynes@1 | 336 | uint32_t tmp[8]; |
nkeynes@1 | 337 | |
nkeynes@1 | 338 | memcpy( tmp, sh4r.r, sizeof(uint32_t)*8 ); |
nkeynes@1 | 339 | memcpy( sh4r.r, sh4r.r_bank, sizeof(uint32_t)*8 ); |
nkeynes@1 | 340 | memcpy( sh4r.r_bank, tmp, sizeof(uint32_t)*8 ); |
nkeynes@1 | 341 | } |
nkeynes@1 | 342 | |
nkeynes@1 | 343 | static void sh4_load_sr( uint32_t newval ) |
nkeynes@1 | 344 | { |
nkeynes@1 | 345 | if( (newval ^ sh4r.sr) & SR_RB ) |
nkeynes@1 | 346 | sh4_switch_banks(); |
nkeynes@1 | 347 | sh4r.sr = newval; |
nkeynes@1 | 348 | sh4r.t = (newval&SR_T) ? 1 : 0; |
nkeynes@1 | 349 | sh4r.s = (newval&SR_S) ? 1 : 0; |
nkeynes@1 | 350 | sh4r.m = (newval&SR_M) ? 1 : 0; |
nkeynes@1 | 351 | sh4r.q = (newval&SR_Q) ? 1 : 0; |
nkeynes@1 | 352 | intc_mask_changed(); |
nkeynes@1 | 353 | } |
nkeynes@1 | 354 | |
nkeynes@124 | 355 | static void sh4_write_float( uint32_t addr, int reg ) |
nkeynes@124 | 356 | { |
nkeynes@124 | 357 | if( IS_FPU_DOUBLESIZE() ) { |
nkeynes@124 | 358 | if( reg & 1 ) { |
nkeynes@124 | 359 | sh4_write_long( addr, *((uint32_t *)&XF((reg)&0x0E)) ); |
nkeynes@124 | 360 | sh4_write_long( addr+4, *((uint32_t *)&XF(reg)) ); |
nkeynes@124 | 361 | } else { |
nkeynes@124 | 362 | sh4_write_long( addr, *((uint32_t *)&FR(reg)) ); |
nkeynes@124 | 363 | sh4_write_long( addr+4, *((uint32_t *)&FR((reg)|0x01)) ); |
nkeynes@124 | 364 | } |
nkeynes@124 | 365 | } else { |
nkeynes@124 | 366 | sh4_write_long( addr, *((uint32_t *)&FR((reg))) ); |
nkeynes@124 | 367 | } |
nkeynes@124 | 368 | } |
nkeynes@124 | 369 | |
nkeynes@124 | 370 | static void sh4_read_float( uint32_t addr, int reg ) |
nkeynes@124 | 371 | { |
nkeynes@124 | 372 | if( IS_FPU_DOUBLESIZE() ) { |
nkeynes@124 | 373 | if( reg & 1 ) { |
nkeynes@124 | 374 | *((uint32_t *)&XF((reg) & 0x0E)) = sh4_read_long(addr); |
nkeynes@124 | 375 | *((uint32_t *)&XF(reg)) = sh4_read_long(addr+4); |
nkeynes@124 | 376 | } else { |
nkeynes@124 | 377 | *((uint32_t *)&FR(reg)) = sh4_read_long(addr); |
nkeynes@124 | 378 | *((uint32_t *)&FR((reg) | 0x01)) = sh4_read_long(addr+4); |
nkeynes@124 | 379 | } |
nkeynes@124 | 380 | } else { |
nkeynes@124 | 381 | *((uint32_t *)&FR(reg)) = sh4_read_long(addr); |
nkeynes@124 | 382 | } |
nkeynes@124 | 383 | } |
nkeynes@124 | 384 | |
nkeynes@1 | 385 | static uint32_t sh4_read_sr( void ) |
nkeynes@1 | 386 | { |
nkeynes@1 | 387 | /* synchronize sh4r.sr with the various bitflags */ |
nkeynes@1 | 388 | sh4r.sr &= SR_MQSTMASK; |
nkeynes@1 | 389 | if( sh4r.t ) sh4r.sr |= SR_T; |
nkeynes@1 | 390 | if( sh4r.s ) sh4r.sr |= SR_S; |
nkeynes@1 | 391 | if( sh4r.m ) sh4r.sr |= SR_M; |
nkeynes@1 | 392 | if( sh4r.q ) sh4r.sr |= SR_Q; |
nkeynes@1 | 393 | return sh4r.sr; |
nkeynes@1 | 394 | } |
nkeynes@246 | 395 | |
nkeynes@246 | 396 | /** |
nkeynes@246 | 397 | * Raise a general CPU exception for the specified exception code. |
nkeynes@246 | 398 | * (NOT for TRAPA or TLB exceptions) |
nkeynes@246 | 399 | */ |
nkeynes@246 | 400 | gboolean sh4_raise_exception( int code ) |
nkeynes@1 | 401 | { |
nkeynes@246 | 402 | RAISE( code, EXV_EXCEPTION ); |
nkeynes@246 | 403 | } |
nkeynes@246 | 404 | |
nkeynes@246 | 405 | gboolean sh4_raise_slot_exception( int normal_code, int slot_code ) { |
nkeynes@246 | 406 | if( sh4r.in_delay_slot ) { |
nkeynes@246 | 407 | return sh4_raise_exception(slot_code); |
nkeynes@246 | 408 | } else { |
nkeynes@246 | 409 | return sh4_raise_exception(normal_code); |
nkeynes@246 | 410 | } |
nkeynes@246 | 411 | } |
nkeynes@246 | 412 | |
nkeynes@246 | 413 | gboolean sh4_raise_tlb_exception( int code ) |
nkeynes@246 | 414 | { |
nkeynes@246 | 415 | RAISE( code, EXV_TLBMISS ); |
nkeynes@1 | 416 | } |
nkeynes@1 | 417 | |
nkeynes@359 | 418 | void sh4_accept_interrupt( void ) |
nkeynes@1 | 419 | { |
nkeynes@1 | 420 | uint32_t code = intc_accept_interrupt(); |
nkeynes@1 | 421 | sh4r.ssr = sh4_read_sr(); |
nkeynes@1 | 422 | sh4r.spc = sh4r.pc; |
nkeynes@1 | 423 | sh4r.sgr = sh4r.r[15]; |
nkeynes@1 | 424 | sh4_load_sr( sh4r.ssr|SR_BL|SR_MD|SR_RB ); |
nkeynes@1 | 425 | MMIO_WRITE( MMU, INTEVT, code ); |
nkeynes@1 | 426 | sh4r.pc = sh4r.vbr + 0x600; |
nkeynes@1 | 427 | sh4r.new_pc = sh4r.pc + 2; |
nkeynes@92 | 428 | // WARN( "Accepting interrupt %03X, from %08X => %08X", code, sh4r.spc, sh4r.pc ); |
nkeynes@1 | 429 | } |
nkeynes@1 | 430 | |
nkeynes@27 | 431 | gboolean sh4_execute_instruction( void ) |
nkeynes@1 | 432 | { |
nkeynes@84 | 433 | uint32_t pc; |
nkeynes@2 | 434 | unsigned short ir; |
nkeynes@1 | 435 | uint32_t tmp; |
nkeynes@123 | 436 | float ftmp; |
nkeynes@123 | 437 | double dtmp; |
nkeynes@1 | 438 | |
nkeynes@1 | 439 | #define R0 sh4r.r[0] |
nkeynes@2 | 440 | pc = sh4r.pc; |
nkeynes@84 | 441 | if( pc > 0xFFFFFF00 ) { |
nkeynes@84 | 442 | /* SYSCALL Magic */ |
nkeynes@102 | 443 | syscall_invoke( pc ); |
nkeynes@104 | 444 | sh4r.in_delay_slot = 0; |
nkeynes@84 | 445 | pc = sh4r.pc = sh4r.pr; |
nkeynes@84 | 446 | sh4r.new_pc = sh4r.pc + 2; |
nkeynes@84 | 447 | } |
nkeynes@208 | 448 | CHECKRALIGN16(pc); |
nkeynes@235 | 449 | |
nkeynes@235 | 450 | /* Read instruction */ |
nkeynes@235 | 451 | uint32_t pageaddr = pc >> 12; |
nkeynes@235 | 452 | if( sh4_icache != NULL && pageaddr == sh4_icache_addr ) { |
nkeynes@235 | 453 | ir = sh4_icache[(pc&0xFFF)>>1]; |
nkeynes@235 | 454 | } else { |
nkeynes@235 | 455 | sh4_icache = (uint16_t *)mem_get_page(pc); |
nkeynes@235 | 456 | if( ((uint32_t)sh4_icache) < MAX_IO_REGIONS ) { |
nkeynes@235 | 457 | /* If someone's actually been so daft as to try to execute out of an IO |
nkeynes@235 | 458 | * region, fallback on the full-blown memory read |
nkeynes@235 | 459 | */ |
nkeynes@235 | 460 | sh4_icache = NULL; |
nkeynes@235 | 461 | ir = MEM_READ_WORD(pc); |
nkeynes@235 | 462 | } else { |
nkeynes@235 | 463 | sh4_icache_addr = pageaddr; |
nkeynes@235 | 464 | ir = sh4_icache[(pc&0xFFF)>>1]; |
nkeynes@235 | 465 | } |
nkeynes@235 | 466 | } |
nkeynes@359 | 467 | switch( (ir&0xF000) >> 12 ) { |
nkeynes@359 | 468 | case 0x0: |
nkeynes@359 | 469 | switch( ir&0xF ) { |
nkeynes@359 | 470 | case 0x2: |
nkeynes@359 | 471 | switch( (ir&0x80) >> 7 ) { |
nkeynes@359 | 472 | case 0x0: |
nkeynes@359 | 473 | switch( (ir&0x70) >> 4 ) { |
nkeynes@359 | 474 | case 0x0: |
nkeynes@359 | 475 | { /* STC SR, Rn */ |
nkeynes@359 | 476 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 477 | CHECKPRIV(); |
nkeynes@359 | 478 | sh4r.r[Rn] = sh4_read_sr(); |
nkeynes@359 | 479 | } |
nkeynes@359 | 480 | break; |
nkeynes@359 | 481 | case 0x1: |
nkeynes@359 | 482 | { /* STC GBR, Rn */ |
nkeynes@359 | 483 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 484 | CHECKPRIV(); |
nkeynes@359 | 485 | sh4r.r[Rn] = sh4r.gbr; |
nkeynes@359 | 486 | } |
nkeynes@359 | 487 | break; |
nkeynes@359 | 488 | case 0x2: |
nkeynes@359 | 489 | { /* STC VBR, Rn */ |
nkeynes@359 | 490 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 491 | CHECKPRIV(); |
nkeynes@359 | 492 | sh4r.r[Rn] = sh4r.vbr; |
nkeynes@359 | 493 | } |
nkeynes@359 | 494 | break; |
nkeynes@359 | 495 | case 0x3: |
nkeynes@359 | 496 | { /* STC SSR, Rn */ |
nkeynes@359 | 497 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 498 | CHECKPRIV(); |
nkeynes@359 | 499 | sh4r.r[Rn] = sh4r.ssr; |
nkeynes@359 | 500 | } |
nkeynes@359 | 501 | break; |
nkeynes@359 | 502 | case 0x4: |
nkeynes@359 | 503 | { /* STC SPC, Rn */ |
nkeynes@359 | 504 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 505 | CHECKPRIV(); |
nkeynes@359 | 506 | sh4r.r[Rn] = sh4r.spc; |
nkeynes@359 | 507 | } |
nkeynes@359 | 508 | break; |
nkeynes@359 | 509 | default: |
nkeynes@359 | 510 | UNDEF(); |
nkeynes@359 | 511 | break; |
nkeynes@359 | 512 | } |
nkeynes@359 | 513 | break; |
nkeynes@359 | 514 | case 0x1: |
nkeynes@359 | 515 | { /* STC Rm_BANK, Rn */ |
nkeynes@359 | 516 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm_BANK = ((ir>>4)&0x7); |
nkeynes@359 | 517 | CHECKPRIV(); |
nkeynes@359 | 518 | sh4r.r[Rn] = sh4r.r_bank[Rm_BANK]; |
nkeynes@359 | 519 | } |
nkeynes@359 | 520 | break; |
nkeynes@359 | 521 | } |
nkeynes@359 | 522 | break; |
nkeynes@359 | 523 | case 0x3: |
nkeynes@359 | 524 | switch( (ir&0xF0) >> 4 ) { |
nkeynes@359 | 525 | case 0x0: |
nkeynes@359 | 526 | { /* BSRF Rn */ |
nkeynes@359 | 527 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 528 | CHECKSLOTILLEGAL(); |
nkeynes@359 | 529 | CHECKDEST( pc + 4 + sh4r.r[Rn] ); |
nkeynes@359 | 530 | sh4r.in_delay_slot = 1; |
nkeynes@359 | 531 | sh4r.pr = sh4r.pc + 4; |
nkeynes@359 | 532 | sh4r.pc = sh4r.new_pc; |
nkeynes@359 | 533 | sh4r.new_pc = pc + 4 + sh4r.r[Rn]; |
nkeynes@359 | 534 | TRACE_CALL( pc, sh4r.new_pc ); |
nkeynes@359 | 535 | return TRUE; |
nkeynes@359 | 536 | } |
nkeynes@359 | 537 | break; |
nkeynes@359 | 538 | case 0x2: |
nkeynes@359 | 539 | { /* BRAF Rn */ |
nkeynes@359 | 540 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 541 | CHECKSLOTILLEGAL(); |
nkeynes@359 | 542 | CHECKDEST( pc + 4 + sh4r.r[Rn] ); |
nkeynes@359 | 543 | sh4r.in_delay_slot = 1; |
nkeynes@359 | 544 | sh4r.pc = sh4r.new_pc; |
nkeynes@359 | 545 | sh4r.new_pc = pc + 4 + sh4r.r[Rn]; |
nkeynes@359 | 546 | return TRUE; |
nkeynes@359 | 547 | } |
nkeynes@359 | 548 | break; |
nkeynes@359 | 549 | case 0x8: |
nkeynes@359 | 550 | { /* PREF @Rn */ |
nkeynes@359 | 551 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 552 | tmp = sh4r.r[Rn]; |
nkeynes@359 | 553 | if( (tmp & 0xFC000000) == 0xE0000000 ) { |
nkeynes@359 | 554 | /* Store queue operation */ |
nkeynes@359 | 555 | int queue = (tmp&0x20)>>2; |
nkeynes@359 | 556 | int32_t *src = &sh4r.store_queue[queue]; |
nkeynes@359 | 557 | uint32_t hi = (MMIO_READ( MMU, (queue == 0 ? QACR0 : QACR1) ) & 0x1C) << 24; |
nkeynes@359 | 558 | uint32_t target = tmp&0x03FFFFE0 | hi; |
nkeynes@359 | 559 | mem_copy_to_sh4( target, src, 32 ); |
nkeynes@359 | 560 | } |
nkeynes@359 | 561 | } |
nkeynes@359 | 562 | break; |
nkeynes@359 | 563 | case 0x9: |
nkeynes@359 | 564 | { /* OCBI @Rn */ |
nkeynes@359 | 565 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 566 | } |
nkeynes@359 | 567 | break; |
nkeynes@359 | 568 | case 0xA: |
nkeynes@359 | 569 | { /* OCBP @Rn */ |
nkeynes@359 | 570 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 571 | } |
nkeynes@359 | 572 | break; |
nkeynes@359 | 573 | case 0xB: |
nkeynes@359 | 574 | { /* OCBWB @Rn */ |
nkeynes@359 | 575 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 576 | } |
nkeynes@359 | 577 | break; |
nkeynes@359 | 578 | case 0xC: |
nkeynes@359 | 579 | { /* MOVCA.L R0, @Rn */ |
nkeynes@359 | 580 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 581 | tmp = sh4r.r[Rn]; |
nkeynes@359 | 582 | CHECKWALIGN32(tmp); |
nkeynes@359 | 583 | MEM_WRITE_LONG( tmp, R0 ); |
nkeynes@359 | 584 | } |
nkeynes@359 | 585 | break; |
nkeynes@359 | 586 | default: |
nkeynes@359 | 587 | UNDEF(); |
nkeynes@359 | 588 | break; |
nkeynes@359 | 589 | } |
nkeynes@359 | 590 | break; |
nkeynes@359 | 591 | case 0x4: |
nkeynes@359 | 592 | { /* MOV.B Rm, @(R0, Rn) */ |
nkeynes@359 | 593 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 594 | MEM_WRITE_BYTE( R0 + sh4r.r[Rn], sh4r.r[Rm] ); |
nkeynes@359 | 595 | } |
nkeynes@359 | 596 | break; |
nkeynes@359 | 597 | case 0x5: |
nkeynes@359 | 598 | { /* MOV.W Rm, @(R0, Rn) */ |
nkeynes@359 | 599 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 600 | CHECKWALIGN16( R0 + sh4r.r[Rn] ); |
nkeynes@359 | 601 | MEM_WRITE_WORD( R0 + sh4r.r[Rn], sh4r.r[Rm] ); |
nkeynes@359 | 602 | } |
nkeynes@359 | 603 | break; |
nkeynes@359 | 604 | case 0x6: |
nkeynes@359 | 605 | { /* MOV.L Rm, @(R0, Rn) */ |
nkeynes@359 | 606 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 607 | CHECKWALIGN32( R0 + sh4r.r[Rn] ); |
nkeynes@359 | 608 | MEM_WRITE_LONG( R0 + sh4r.r[Rn], sh4r.r[Rm] ); |
nkeynes@359 | 609 | } |
nkeynes@359 | 610 | break; |
nkeynes@359 | 611 | case 0x7: |
nkeynes@359 | 612 | { /* MUL.L Rm, Rn */ |
nkeynes@359 | 613 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 614 | sh4r.mac = (sh4r.mac&0xFFFFFFFF00000000LL) | |
nkeynes@359 | 615 | (sh4r.r[Rm] * sh4r.r[Rn]); |
nkeynes@359 | 616 | } |
nkeynes@359 | 617 | break; |
nkeynes@359 | 618 | case 0x8: |
nkeynes@359 | 619 | switch( (ir&0xFF0) >> 4 ) { |
nkeynes@359 | 620 | case 0x0: |
nkeynes@359 | 621 | { /* CLRT */ |
nkeynes@359 | 622 | sh4r.t = 0; |
nkeynes@359 | 623 | } |
nkeynes@359 | 624 | break; |
nkeynes@359 | 625 | case 0x1: |
nkeynes@359 | 626 | { /* SETT */ |
nkeynes@359 | 627 | sh4r.t = 1; |
nkeynes@359 | 628 | } |
nkeynes@359 | 629 | break; |
nkeynes@359 | 630 | case 0x2: |
nkeynes@359 | 631 | { /* CLRMAC */ |
nkeynes@359 | 632 | sh4r.mac = 0; |
nkeynes@359 | 633 | } |
nkeynes@359 | 634 | break; |
nkeynes@359 | 635 | case 0x3: |
nkeynes@359 | 636 | { /* LDTLB */ |
nkeynes@359 | 637 | /* TODO */ |
nkeynes@359 | 638 | } |
nkeynes@359 | 639 | break; |
nkeynes@359 | 640 | case 0x4: |
nkeynes@359 | 641 | { /* CLRS */ |
nkeynes@359 | 642 | sh4r.s = 0; |
nkeynes@359 | 643 | } |
nkeynes@359 | 644 | break; |
nkeynes@359 | 645 | case 0x5: |
nkeynes@359 | 646 | { /* SETS */ |
nkeynes@359 | 647 | sh4r.s = 1; |
nkeynes@359 | 648 | } |
nkeynes@359 | 649 | break; |
nkeynes@359 | 650 | default: |
nkeynes@359 | 651 | UNDEF(); |
nkeynes@359 | 652 | break; |
nkeynes@359 | 653 | } |
nkeynes@359 | 654 | break; |
nkeynes@359 | 655 | case 0x9: |
nkeynes@359 | 656 | switch( (ir&0xF0) >> 4 ) { |
nkeynes@359 | 657 | case 0x0: |
nkeynes@359 | 658 | { /* NOP */ |
nkeynes@359 | 659 | /* NOP */ |
nkeynes@359 | 660 | } |
nkeynes@359 | 661 | break; |
nkeynes@359 | 662 | case 0x1: |
nkeynes@359 | 663 | { /* DIV0U */ |
nkeynes@359 | 664 | sh4r.m = sh4r.q = sh4r.t = 0; |
nkeynes@359 | 665 | } |
nkeynes@359 | 666 | break; |
nkeynes@359 | 667 | case 0x2: |
nkeynes@359 | 668 | { /* MOVT Rn */ |
nkeynes@359 | 669 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 670 | sh4r.r[Rn] = sh4r.t; |
nkeynes@359 | 671 | } |
nkeynes@359 | 672 | break; |
nkeynes@359 | 673 | default: |
nkeynes@359 | 674 | UNDEF(); |
nkeynes@359 | 675 | break; |
nkeynes@359 | 676 | } |
nkeynes@359 | 677 | break; |
nkeynes@359 | 678 | case 0xA: |
nkeynes@359 | 679 | switch( (ir&0xF0) >> 4 ) { |
nkeynes@359 | 680 | case 0x0: |
nkeynes@359 | 681 | { /* STS MACH, Rn */ |
nkeynes@359 | 682 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 683 | sh4r.r[Rn] = (sh4r.mac>>32); |
nkeynes@359 | 684 | } |
nkeynes@359 | 685 | break; |
nkeynes@359 | 686 | case 0x1: |
nkeynes@359 | 687 | { /* STS MACL, Rn */ |
nkeynes@359 | 688 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 689 | sh4r.r[Rn] = (uint32_t)sh4r.mac; |
nkeynes@359 | 690 | } |
nkeynes@359 | 691 | break; |
nkeynes@359 | 692 | case 0x2: |
nkeynes@359 | 693 | { /* STS PR, Rn */ |
nkeynes@359 | 694 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 695 | sh4r.r[Rn] = sh4r.pr; |
nkeynes@359 | 696 | } |
nkeynes@359 | 697 | break; |
nkeynes@359 | 698 | case 0x3: |
nkeynes@359 | 699 | { /* STC SGR, Rn */ |
nkeynes@359 | 700 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 701 | CHECKPRIV(); |
nkeynes@359 | 702 | sh4r.r[Rn] = sh4r.sgr; |
nkeynes@359 | 703 | } |
nkeynes@359 | 704 | break; |
nkeynes@359 | 705 | case 0x5: |
nkeynes@359 | 706 | { /* STS FPUL, Rn */ |
nkeynes@359 | 707 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 708 | sh4r.r[Rn] = sh4r.fpul; |
nkeynes@359 | 709 | } |
nkeynes@359 | 710 | break; |
nkeynes@359 | 711 | case 0x6: |
nkeynes@359 | 712 | { /* STS FPSCR, Rn */ |
nkeynes@359 | 713 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 714 | sh4r.r[Rn] = sh4r.fpscr; |
nkeynes@359 | 715 | } |
nkeynes@359 | 716 | break; |
nkeynes@359 | 717 | case 0xF: |
nkeynes@359 | 718 | { /* STC DBR, Rn */ |
nkeynes@359 | 719 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 720 | CHECKPRIV(); sh4r.r[Rn] = sh4r.dbr; |
nkeynes@359 | 721 | } |
nkeynes@359 | 722 | break; |
nkeynes@359 | 723 | default: |
nkeynes@359 | 724 | UNDEF(); |
nkeynes@359 | 725 | break; |
nkeynes@359 | 726 | } |
nkeynes@359 | 727 | break; |
nkeynes@359 | 728 | case 0xB: |
nkeynes@359 | 729 | switch( (ir&0xFF0) >> 4 ) { |
nkeynes@359 | 730 | case 0x0: |
nkeynes@359 | 731 | { /* RTS */ |
nkeynes@359 | 732 | CHECKSLOTILLEGAL(); |
nkeynes@359 | 733 | CHECKDEST( sh4r.pr ); |
nkeynes@359 | 734 | sh4r.in_delay_slot = 1; |
nkeynes@359 | 735 | sh4r.pc = sh4r.new_pc; |
nkeynes@359 | 736 | sh4r.new_pc = sh4r.pr; |
nkeynes@359 | 737 | TRACE_RETURN( pc, sh4r.new_pc ); |
nkeynes@359 | 738 | return TRUE; |
nkeynes@359 | 739 | } |
nkeynes@359 | 740 | break; |
nkeynes@359 | 741 | case 0x1: |
nkeynes@359 | 742 | { /* SLEEP */ |
nkeynes@359 | 743 | if( MMIO_READ( CPG, STBCR ) & 0x80 ) { |
nkeynes@359 | 744 | sh4r.sh4_state = SH4_STATE_STANDBY; |
nkeynes@359 | 745 | } else { |
nkeynes@359 | 746 | sh4r.sh4_state = SH4_STATE_SLEEP; |
nkeynes@359 | 747 | } |
nkeynes@359 | 748 | return FALSE; /* Halt CPU */ |
nkeynes@359 | 749 | } |
nkeynes@359 | 750 | break; |
nkeynes@359 | 751 | case 0x2: |
nkeynes@359 | 752 | { /* RTE */ |
nkeynes@359 | 753 | CHECKPRIV(); |
nkeynes@359 | 754 | CHECKDEST( sh4r.spc ); |
nkeynes@359 | 755 | CHECKSLOTILLEGAL(); |
nkeynes@359 | 756 | sh4r.in_delay_slot = 1; |
nkeynes@359 | 757 | sh4r.pc = sh4r.new_pc; |
nkeynes@359 | 758 | sh4r.new_pc = sh4r.spc; |
nkeynes@359 | 759 | sh4_load_sr( sh4r.ssr ); |
nkeynes@359 | 760 | return TRUE; |
nkeynes@359 | 761 | } |
nkeynes@359 | 762 | break; |
nkeynes@359 | 763 | default: |
nkeynes@359 | 764 | UNDEF(); |
nkeynes@359 | 765 | break; |
nkeynes@359 | 766 | } |
nkeynes@359 | 767 | break; |
nkeynes@359 | 768 | case 0xC: |
nkeynes@359 | 769 | { /* MOV.B @(R0, Rm), Rn */ |
nkeynes@359 | 770 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 771 | sh4r.r[Rn] = MEM_READ_BYTE( R0 + sh4r.r[Rm] ); |
nkeynes@359 | 772 | } |
nkeynes@359 | 773 | break; |
nkeynes@359 | 774 | case 0xD: |
nkeynes@359 | 775 | { /* MOV.W @(R0, Rm), Rn */ |
nkeynes@359 | 776 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 777 | CHECKRALIGN16( R0 + sh4r.r[Rm] ); |
nkeynes@359 | 778 | sh4r.r[Rn] = MEM_READ_WORD( R0 + sh4r.r[Rm] ); |
nkeynes@359 | 779 | } |
nkeynes@359 | 780 | break; |
nkeynes@359 | 781 | case 0xE: |
nkeynes@359 | 782 | { /* MOV.L @(R0, Rm), Rn */ |
nkeynes@359 | 783 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 784 | CHECKRALIGN32( R0 + sh4r.r[Rm] ); |
nkeynes@359 | 785 | sh4r.r[Rn] = MEM_READ_LONG( R0 + sh4r.r[Rm] ); |
nkeynes@359 | 786 | } |
nkeynes@359 | 787 | break; |
nkeynes@359 | 788 | case 0xF: |
nkeynes@359 | 789 | { /* MAC.L @Rm+, @Rn+ */ |
nkeynes@359 | 790 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 791 | CHECKRALIGN32( sh4r.r[Rm] ); |
nkeynes@359 | 792 | CHECKRALIGN32( sh4r.r[Rn] ); |
nkeynes@359 | 793 | int64_t tmpl = SIGNEXT32(MEM_READ_LONG(sh4r.r[Rn])); |
nkeynes@359 | 794 | sh4r.r[Rn] += 4; |
nkeynes@359 | 795 | tmpl = tmpl * SIGNEXT32(MEM_READ_LONG(sh4r.r[Rm])) + sh4r.mac; |
nkeynes@359 | 796 | sh4r.r[Rm] += 4; |
nkeynes@359 | 797 | if( sh4r.s ) { |
nkeynes@359 | 798 | /* 48-bit Saturation. Yuch */ |
nkeynes@359 | 799 | if( tmpl < (int64_t)0xFFFF800000000000LL ) |
nkeynes@359 | 800 | tmpl = 0xFFFF800000000000LL; |
nkeynes@359 | 801 | else if( tmpl > (int64_t)0x00007FFFFFFFFFFFLL ) |
nkeynes@359 | 802 | tmpl = 0x00007FFFFFFFFFFFLL; |
nkeynes@359 | 803 | } |
nkeynes@359 | 804 | sh4r.mac = tmpl; |
nkeynes@359 | 805 | } |
nkeynes@359 | 806 | break; |
nkeynes@359 | 807 | default: |
nkeynes@359 | 808 | UNDEF(); |
nkeynes@359 | 809 | break; |
nkeynes@359 | 810 | } |
nkeynes@359 | 811 | break; |
nkeynes@359 | 812 | case 0x1: |
nkeynes@359 | 813 | { /* MOV.L Rm, @(disp, Rn) */ |
nkeynes@359 | 814 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); uint32_t disp = (ir&0xF)<<2; |
nkeynes@359 | 815 | tmp = sh4r.r[Rn] + disp; |
nkeynes@359 | 816 | CHECKWALIGN32( tmp ); |
nkeynes@359 | 817 | MEM_WRITE_LONG( tmp, sh4r.r[Rm] ); |
nkeynes@359 | 818 | } |
nkeynes@359 | 819 | break; |
nkeynes@359 | 820 | case 0x2: |
nkeynes@359 | 821 | switch( ir&0xF ) { |
nkeynes@359 | 822 | case 0x0: |
nkeynes@359 | 823 | { /* MOV.B Rm, @Rn */ |
nkeynes@359 | 824 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 825 | MEM_WRITE_BYTE( sh4r.r[Rn], sh4r.r[Rm] ); |
nkeynes@359 | 826 | } |
nkeynes@359 | 827 | break; |
nkeynes@359 | 828 | case 0x1: |
nkeynes@359 | 829 | { /* MOV.W Rm, @Rn */ |
nkeynes@359 | 830 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 831 | CHECKWALIGN16( sh4r.r[Rn] ); MEM_WRITE_WORD( sh4r.r[Rn], sh4r.r[Rm] ); |
nkeynes@359 | 832 | } |
nkeynes@359 | 833 | break; |
nkeynes@359 | 834 | case 0x2: |
nkeynes@359 | 835 | { /* MOV.L Rm, @Rn */ |
nkeynes@359 | 836 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 837 | CHECKWALIGN32( sh4r.r[Rn] ); MEM_WRITE_LONG( sh4r.r[Rn], sh4r.r[Rm] ); |
nkeynes@359 | 838 | } |
nkeynes@359 | 839 | break; |
nkeynes@359 | 840 | case 0x4: |
nkeynes@359 | 841 | { /* MOV.B Rm, @-Rn */ |
nkeynes@359 | 842 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 843 | sh4r.r[Rn] --; MEM_WRITE_BYTE( sh4r.r[Rn], sh4r.r[Rm] ); |
nkeynes@359 | 844 | } |
nkeynes@359 | 845 | break; |
nkeynes@359 | 846 | case 0x5: |
nkeynes@359 | 847 | { /* MOV.W Rm, @-Rn */ |
nkeynes@359 | 848 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 849 | sh4r.r[Rn] -= 2; CHECKWALIGN16( sh4r.r[Rn] ); MEM_WRITE_WORD( sh4r.r[Rn], sh4r.r[Rm] ); |
nkeynes@359 | 850 | } |
nkeynes@359 | 851 | break; |
nkeynes@359 | 852 | case 0x6: |
nkeynes@359 | 853 | { /* MOV.L Rm, @-Rn */ |
nkeynes@359 | 854 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 855 | sh4r.r[Rn] -= 4; CHECKWALIGN32( sh4r.r[Rn] ); MEM_WRITE_LONG( sh4r.r[Rn], sh4r.r[Rm] ); |
nkeynes@359 | 856 | } |
nkeynes@359 | 857 | break; |
nkeynes@359 | 858 | case 0x7: |
nkeynes@359 | 859 | { /* DIV0S Rm, Rn */ |
nkeynes@359 | 860 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 861 | sh4r.q = sh4r.r[Rn]>>31; |
nkeynes@359 | 862 | sh4r.m = sh4r.r[Rm]>>31; |
nkeynes@359 | 863 | sh4r.t = sh4r.q ^ sh4r.m; |
nkeynes@359 | 864 | } |
nkeynes@359 | 865 | break; |
nkeynes@359 | 866 | case 0x8: |
nkeynes@359 | 867 | { /* TST Rm, Rn */ |
nkeynes@359 | 868 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 869 | sh4r.t = (sh4r.r[Rn]&sh4r.r[Rm] ? 0 : 1); |
nkeynes@359 | 870 | } |
nkeynes@359 | 871 | break; |
nkeynes@359 | 872 | case 0x9: |
nkeynes@359 | 873 | { /* AND Rm, Rn */ |
nkeynes@359 | 874 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 875 | sh4r.r[Rn] &= sh4r.r[Rm]; |
nkeynes@359 | 876 | } |
nkeynes@359 | 877 | break; |
nkeynes@359 | 878 | case 0xA: |
nkeynes@359 | 879 | { /* XOR Rm, Rn */ |
nkeynes@359 | 880 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 881 | sh4r.r[Rn] ^= sh4r.r[Rm]; |
nkeynes@359 | 882 | } |
nkeynes@359 | 883 | break; |
nkeynes@359 | 884 | case 0xB: |
nkeynes@359 | 885 | { /* OR Rm, Rn */ |
nkeynes@359 | 886 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 887 | sh4r.r[Rn] |= sh4r.r[Rm]; |
nkeynes@359 | 888 | } |
nkeynes@359 | 889 | break; |
nkeynes@359 | 890 | case 0xC: |
nkeynes@359 | 891 | { /* CMP/STR Rm, Rn */ |
nkeynes@359 | 892 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 893 | /* set T = 1 if any byte in RM & RN is the same */ |
nkeynes@359 | 894 | tmp = sh4r.r[Rm] ^ sh4r.r[Rn]; |
nkeynes@359 | 895 | sh4r.t = ((tmp&0x000000FF)==0 || (tmp&0x0000FF00)==0 || |
nkeynes@359 | 896 | (tmp&0x00FF0000)==0 || (tmp&0xFF000000)==0)?1:0; |
nkeynes@359 | 897 | } |
nkeynes@359 | 898 | break; |
nkeynes@359 | 899 | case 0xD: |
nkeynes@359 | 900 | { /* XTRCT Rm, Rn */ |
nkeynes@359 | 901 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 902 | sh4r.r[Rn] = (sh4r.r[Rn]>>16) | (sh4r.r[Rm]<<16); |
nkeynes@359 | 903 | } |
nkeynes@359 | 904 | break; |
nkeynes@359 | 905 | case 0xE: |
nkeynes@359 | 906 | { /* MULU.W Rm, Rn */ |
nkeynes@359 | 907 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 908 | sh4r.mac = (sh4r.mac&0xFFFFFFFF00000000LL) | |
nkeynes@359 | 909 | (uint32_t)((sh4r.r[Rm]&0xFFFF) * (sh4r.r[Rn]&0xFFFF)); |
nkeynes@359 | 910 | } |
nkeynes@359 | 911 | break; |
nkeynes@359 | 912 | case 0xF: |
nkeynes@359 | 913 | { /* MULS.W Rm, Rn */ |
nkeynes@359 | 914 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 915 | sh4r.mac = (sh4r.mac&0xFFFFFFFF00000000LL) | |
nkeynes@359 | 916 | (uint32_t)(SIGNEXT32(sh4r.r[Rm]&0xFFFF) * SIGNEXT32(sh4r.r[Rn]&0xFFFF)); |
nkeynes@359 | 917 | } |
nkeynes@359 | 918 | break; |
nkeynes@359 | 919 | default: |
nkeynes@359 | 920 | UNDEF(); |
nkeynes@359 | 921 | break; |
nkeynes@359 | 922 | } |
nkeynes@359 | 923 | break; |
nkeynes@359 | 924 | case 0x3: |
nkeynes@359 | 925 | switch( ir&0xF ) { |
nkeynes@359 | 926 | case 0x0: |
nkeynes@359 | 927 | { /* CMP/EQ Rm, Rn */ |
nkeynes@359 | 928 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 929 | sh4r.t = ( sh4r.r[Rm] == sh4r.r[Rn] ? 1 : 0 ); |
nkeynes@359 | 930 | } |
nkeynes@359 | 931 | break; |
nkeynes@359 | 932 | case 0x2: |
nkeynes@359 | 933 | { /* CMP/HS Rm, Rn */ |
nkeynes@359 | 934 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 935 | sh4r.t = ( sh4r.r[Rn] >= sh4r.r[Rm] ? 1 : 0 ); |
nkeynes@359 | 936 | } |
nkeynes@359 | 937 | break; |
nkeynes@359 | 938 | case 0x3: |
nkeynes@359 | 939 | { /* CMP/GE Rm, Rn */ |
nkeynes@359 | 940 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 941 | sh4r.t = ( ((int32_t)sh4r.r[Rn]) >= ((int32_t)sh4r.r[Rm]) ? 1 : 0 ); |
nkeynes@359 | 942 | } |
nkeynes@359 | 943 | break; |
nkeynes@359 | 944 | case 0x4: |
nkeynes@359 | 945 | { /* DIV1 Rm, Rn */ |
nkeynes@359 | 946 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 947 | /* This is just from the sh4p manual with some |
nkeynes@359 | 948 | * simplifications (someone want to check it's correct? :) |
nkeynes@359 | 949 | * Why they couldn't just provide a real DIV instruction... |
nkeynes@359 | 950 | */ |
nkeynes@359 | 951 | uint32_t tmp0, tmp1, tmp2, dir; |
nkeynes@359 | 952 | |
nkeynes@359 | 953 | dir = sh4r.q ^ sh4r.m; |
nkeynes@359 | 954 | sh4r.q = (sh4r.r[Rn] >> 31); |
nkeynes@359 | 955 | tmp2 = sh4r.r[Rm]; |
nkeynes@359 | 956 | sh4r.r[Rn] = (sh4r.r[Rn] << 1) | sh4r.t; |
nkeynes@359 | 957 | tmp0 = sh4r.r[Rn]; |
nkeynes@359 | 958 | if( dir ) { |
nkeynes@359 | 959 | sh4r.r[Rn] += tmp2; |
nkeynes@359 | 960 | tmp1 = (sh4r.r[Rn]<tmp0 ? 1 : 0 ); |
nkeynes@359 | 961 | } else { |
nkeynes@359 | 962 | sh4r.r[Rn] -= tmp2; |
nkeynes@359 | 963 | tmp1 = (sh4r.r[Rn]>tmp0 ? 1 : 0 ); |
nkeynes@359 | 964 | } |
nkeynes@359 | 965 | sh4r.q ^= sh4r.m ^ tmp1; |
nkeynes@359 | 966 | sh4r.t = ( sh4r.q == sh4r.m ? 1 : 0 ); |
nkeynes@359 | 967 | } |
nkeynes@359 | 968 | break; |
nkeynes@359 | 969 | case 0x5: |
nkeynes@359 | 970 | { /* DMULU.L Rm, Rn */ |
nkeynes@359 | 971 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 972 | sh4r.mac = ((uint64_t)sh4r.r[Rm]) * ((uint64_t)sh4r.r[Rn]); |
nkeynes@359 | 973 | } |
nkeynes@359 | 974 | break; |
nkeynes@359 | 975 | case 0x6: |
nkeynes@359 | 976 | { /* CMP/HI Rm, Rn */ |
nkeynes@359 | 977 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 978 | sh4r.t = ( sh4r.r[Rn] > sh4r.r[Rm] ? 1 : 0 ); |
nkeynes@359 | 979 | } |
nkeynes@359 | 980 | break; |
nkeynes@359 | 981 | case 0x7: |
nkeynes@359 | 982 | { /* CMP/GT Rm, Rn */ |
nkeynes@359 | 983 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 984 | sh4r.t = ( ((int32_t)sh4r.r[Rn]) > ((int32_t)sh4r.r[Rm]) ? 1 : 0 ); |
nkeynes@359 | 985 | } |
nkeynes@359 | 986 | break; |
nkeynes@359 | 987 | case 0x8: |
nkeynes@359 | 988 | { /* SUB Rm, Rn */ |
nkeynes@359 | 989 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 990 | sh4r.r[Rn] -= sh4r.r[Rm]; |
nkeynes@359 | 991 | } |
nkeynes@359 | 992 | break; |
nkeynes@359 | 993 | case 0xA: |
nkeynes@359 | 994 | { /* SUBC Rm, Rn */ |
nkeynes@359 | 995 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 996 | tmp = sh4r.r[Rn]; |
nkeynes@359 | 997 | sh4r.r[Rn] = sh4r.r[Rn] - sh4r.r[Rm] - sh4r.t; |
nkeynes@359 | 998 | sh4r.t = (sh4r.r[Rn] > tmp || (sh4r.r[Rn] == tmp && sh4r.t == 1)); |
nkeynes@359 | 999 | } |
nkeynes@359 | 1000 | break; |
nkeynes@359 | 1001 | case 0xB: |
nkeynes@359 | 1002 | UNIMP(ir); /* SUBV Rm, Rn */ |
nkeynes@359 | 1003 | break; |
nkeynes@359 | 1004 | case 0xC: |
nkeynes@359 | 1005 | { /* ADD Rm, Rn */ |
nkeynes@359 | 1006 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1007 | sh4r.r[Rn] += sh4r.r[Rm]; |
nkeynes@359 | 1008 | } |
nkeynes@359 | 1009 | break; |
nkeynes@359 | 1010 | case 0xD: |
nkeynes@359 | 1011 | { /* DMULS.L Rm, Rn */ |
nkeynes@359 | 1012 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1013 | sh4r.mac = SIGNEXT32(sh4r.r[Rm]) * SIGNEXT32(sh4r.r[Rn]); |
nkeynes@359 | 1014 | } |
nkeynes@359 | 1015 | break; |
nkeynes@359 | 1016 | case 0xE: |
nkeynes@359 | 1017 | { /* ADDC Rm, Rn */ |
nkeynes@359 | 1018 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1019 | tmp = sh4r.r[Rn]; |
nkeynes@359 | 1020 | sh4r.r[Rn] += sh4r.r[Rm] + sh4r.t; |
nkeynes@359 | 1021 | sh4r.t = ( sh4r.r[Rn] < tmp || (sh4r.r[Rn] == tmp && sh4r.t != 0) ? 1 : 0 ); |
nkeynes@359 | 1022 | } |
nkeynes@359 | 1023 | break; |
nkeynes@359 | 1024 | case 0xF: |
nkeynes@359 | 1025 | { /* ADDV Rm, Rn */ |
nkeynes@359 | 1026 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1027 | tmp = sh4r.r[Rn] + sh4r.r[Rm]; |
nkeynes@359 | 1028 | sh4r.t = ( (sh4r.r[Rn]>>31) == (sh4r.r[Rm]>>31) && ((sh4r.r[Rn]>>31) != (tmp>>31)) ); |
nkeynes@359 | 1029 | sh4r.r[Rn] = tmp; |
nkeynes@359 | 1030 | } |
nkeynes@359 | 1031 | break; |
nkeynes@359 | 1032 | default: |
nkeynes@359 | 1033 | UNDEF(); |
nkeynes@359 | 1034 | break; |
nkeynes@359 | 1035 | } |
nkeynes@359 | 1036 | break; |
nkeynes@359 | 1037 | case 0x4: |
nkeynes@359 | 1038 | switch( ir&0xF ) { |
nkeynes@359 | 1039 | case 0x0: |
nkeynes@359 | 1040 | switch( (ir&0xF0) >> 4 ) { |
nkeynes@359 | 1041 | case 0x0: |
nkeynes@359 | 1042 | { /* SHLL Rn */ |
nkeynes@359 | 1043 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1044 | sh4r.t = sh4r.r[Rn] >> 31; sh4r.r[Rn] <<= 1; |
nkeynes@359 | 1045 | } |
nkeynes@359 | 1046 | break; |
nkeynes@359 | 1047 | case 0x1: |
nkeynes@359 | 1048 | { /* DT Rn */ |
nkeynes@359 | 1049 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1050 | sh4r.r[Rn] --; |
nkeynes@359 | 1051 | sh4r.t = ( sh4r.r[Rn] == 0 ? 1 : 0 ); |
nkeynes@359 | 1052 | } |
nkeynes@359 | 1053 | break; |
nkeynes@359 | 1054 | case 0x2: |
nkeynes@359 | 1055 | { /* SHAL Rn */ |
nkeynes@359 | 1056 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1057 | sh4r.t = sh4r.r[Rn] >> 31; |
nkeynes@359 | 1058 | sh4r.r[Rn] <<= 1; |
nkeynes@359 | 1059 | } |
nkeynes@359 | 1060 | break; |
nkeynes@359 | 1061 | default: |
nkeynes@359 | 1062 | UNDEF(); |
nkeynes@359 | 1063 | break; |
nkeynes@359 | 1064 | } |
nkeynes@359 | 1065 | break; |
nkeynes@359 | 1066 | case 0x1: |
nkeynes@359 | 1067 | switch( (ir&0xF0) >> 4 ) { |
nkeynes@359 | 1068 | case 0x0: |
nkeynes@359 | 1069 | { /* SHLR Rn */ |
nkeynes@359 | 1070 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1071 | sh4r.t = sh4r.r[Rn] & 0x00000001; sh4r.r[Rn] >>= 1; |
nkeynes@359 | 1072 | } |
nkeynes@359 | 1073 | break; |
nkeynes@359 | 1074 | case 0x1: |
nkeynes@359 | 1075 | { /* CMP/PZ Rn */ |
nkeynes@359 | 1076 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1077 | sh4r.t = ( ((int32_t)sh4r.r[Rn]) >= 0 ? 1 : 0 ); |
nkeynes@359 | 1078 | } |
nkeynes@359 | 1079 | break; |
nkeynes@359 | 1080 | case 0x2: |
nkeynes@359 | 1081 | { /* SHAR Rn */ |
nkeynes@359 | 1082 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1083 | sh4r.t = sh4r.r[Rn] & 0x00000001; |
nkeynes@359 | 1084 | sh4r.r[Rn] = ((int32_t)sh4r.r[Rn]) >> 1; |
nkeynes@359 | 1085 | } |
nkeynes@359 | 1086 | break; |
nkeynes@359 | 1087 | default: |
nkeynes@359 | 1088 | UNDEF(); |
nkeynes@359 | 1089 | break; |
nkeynes@359 | 1090 | } |
nkeynes@359 | 1091 | break; |
nkeynes@359 | 1092 | case 0x2: |
nkeynes@359 | 1093 | switch( (ir&0xF0) >> 4 ) { |
nkeynes@359 | 1094 | case 0x0: |
nkeynes@359 | 1095 | { /* STS.L MACH, @-Rn */ |
nkeynes@359 | 1096 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1097 | sh4r.r[Rn] -= 4; |
nkeynes@359 | 1098 | CHECKWALIGN32( sh4r.r[Rn] ); |
nkeynes@359 | 1099 | MEM_WRITE_LONG( sh4r.r[Rn], (sh4r.mac>>32) ); |
nkeynes@359 | 1100 | } |
nkeynes@359 | 1101 | break; |
nkeynes@359 | 1102 | case 0x1: |
nkeynes@359 | 1103 | { /* STS.L MACL, @-Rn */ |
nkeynes@359 | 1104 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1105 | sh4r.r[Rn] -= 4; |
nkeynes@359 | 1106 | CHECKWALIGN32( sh4r.r[Rn] ); |
nkeynes@359 | 1107 | MEM_WRITE_LONG( sh4r.r[Rn], (uint32_t)sh4r.mac ); |
nkeynes@359 | 1108 | } |
nkeynes@359 | 1109 | break; |
nkeynes@359 | 1110 | case 0x2: |
nkeynes@359 | 1111 | { /* STS.L PR, @-Rn */ |
nkeynes@359 | 1112 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1113 | sh4r.r[Rn] -= 4; |
nkeynes@359 | 1114 | CHECKWALIGN32( sh4r.r[Rn] ); |
nkeynes@359 | 1115 | MEM_WRITE_LONG( sh4r.r[Rn], sh4r.pr ); |
nkeynes@359 | 1116 | } |
nkeynes@359 | 1117 | break; |
nkeynes@359 | 1118 | case 0x3: |
nkeynes@359 | 1119 | { /* STC.L SGR, @-Rn */ |
nkeynes@359 | 1120 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1121 | CHECKPRIV(); |
nkeynes@359 | 1122 | sh4r.r[Rn] -= 4; |
nkeynes@359 | 1123 | CHECKWALIGN32( sh4r.r[Rn] ); |
nkeynes@359 | 1124 | MEM_WRITE_LONG( sh4r.r[Rn], sh4r.sgr ); |
nkeynes@359 | 1125 | } |
nkeynes@359 | 1126 | break; |
nkeynes@359 | 1127 | case 0x5: |
nkeynes@359 | 1128 | { /* STS.L FPUL, @-Rn */ |
nkeynes@359 | 1129 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1130 | sh4r.r[Rn] -= 4; |
nkeynes@359 | 1131 | CHECKWALIGN32( sh4r.r[Rn] ); |
nkeynes@359 | 1132 | MEM_WRITE_LONG( sh4r.r[Rn], sh4r.fpul ); |
nkeynes@359 | 1133 | } |
nkeynes@359 | 1134 | break; |
nkeynes@359 | 1135 | case 0x6: |
nkeynes@359 | 1136 | { /* STS.L FPSCR, @-Rn */ |
nkeynes@359 | 1137 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1138 | sh4r.r[Rn] -= 4; |
nkeynes@359 | 1139 | CHECKWALIGN32( sh4r.r[Rn] ); |
nkeynes@359 | 1140 | MEM_WRITE_LONG( sh4r.r[Rn], sh4r.fpscr ); |
nkeynes@359 | 1141 | } |
nkeynes@359 | 1142 | break; |
nkeynes@359 | 1143 | case 0xF: |
nkeynes@359 | 1144 | { /* STC.L DBR, @-Rn */ |
nkeynes@359 | 1145 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1146 | CHECKPRIV(); |
nkeynes@359 | 1147 | sh4r.r[Rn] -= 4; |
nkeynes@359 | 1148 | CHECKWALIGN32( sh4r.r[Rn] ); |
nkeynes@359 | 1149 | MEM_WRITE_LONG( sh4r.r[Rn], sh4r.dbr ); |
nkeynes@359 | 1150 | } |
nkeynes@359 | 1151 | break; |
nkeynes@359 | 1152 | default: |
nkeynes@359 | 1153 | UNDEF(); |
nkeynes@359 | 1154 | break; |
nkeynes@359 | 1155 | } |
nkeynes@359 | 1156 | break; |
nkeynes@359 | 1157 | case 0x3: |
nkeynes@359 | 1158 | switch( (ir&0x80) >> 7 ) { |
nkeynes@359 | 1159 | case 0x0: |
nkeynes@359 | 1160 | switch( (ir&0x70) >> 4 ) { |
nkeynes@359 | 1161 | case 0x0: |
nkeynes@359 | 1162 | { /* STC.L SR, @-Rn */ |
nkeynes@359 | 1163 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1164 | CHECKPRIV(); |
nkeynes@359 | 1165 | sh4r.r[Rn] -= 4; |
nkeynes@359 | 1166 | CHECKWALIGN32( sh4r.r[Rn] ); |
nkeynes@359 | 1167 | MEM_WRITE_LONG( sh4r.r[Rn], sh4_read_sr() ); |
nkeynes@359 | 1168 | } |
nkeynes@359 | 1169 | break; |
nkeynes@359 | 1170 | case 0x1: |
nkeynes@359 | 1171 | { /* STC.L GBR, @-Rn */ |
nkeynes@359 | 1172 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1173 | sh4r.r[Rn] -= 4; |
nkeynes@359 | 1174 | CHECKWALIGN32( sh4r.r[Rn] ); |
nkeynes@359 | 1175 | MEM_WRITE_LONG( sh4r.r[Rn], sh4r.gbr ); |
nkeynes@359 | 1176 | } |
nkeynes@359 | 1177 | break; |
nkeynes@359 | 1178 | case 0x2: |
nkeynes@359 | 1179 | { /* STC.L VBR, @-Rn */ |
nkeynes@359 | 1180 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1181 | CHECKPRIV(); |
nkeynes@359 | 1182 | sh4r.r[Rn] -= 4; |
nkeynes@359 | 1183 | CHECKWALIGN32( sh4r.r[Rn] ); |
nkeynes@359 | 1184 | MEM_WRITE_LONG( sh4r.r[Rn], sh4r.vbr ); |
nkeynes@359 | 1185 | } |
nkeynes@359 | 1186 | break; |
nkeynes@359 | 1187 | case 0x3: |
nkeynes@359 | 1188 | { /* STC.L SSR, @-Rn */ |
nkeynes@359 | 1189 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1190 | CHECKPRIV(); |
nkeynes@359 | 1191 | sh4r.r[Rn] -= 4; |
nkeynes@359 | 1192 | CHECKWALIGN32( sh4r.r[Rn] ); |
nkeynes@359 | 1193 | MEM_WRITE_LONG( sh4r.r[Rn], sh4r.ssr ); |
nkeynes@359 | 1194 | } |
nkeynes@359 | 1195 | break; |
nkeynes@359 | 1196 | case 0x4: |
nkeynes@359 | 1197 | { /* STC.L SPC, @-Rn */ |
nkeynes@359 | 1198 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1199 | CHECKPRIV(); |
nkeynes@359 | 1200 | sh4r.r[Rn] -= 4; |
nkeynes@359 | 1201 | CHECKWALIGN32( sh4r.r[Rn] ); |
nkeynes@359 | 1202 | MEM_WRITE_LONG( sh4r.r[Rn], sh4r.spc ); |
nkeynes@359 | 1203 | } |
nkeynes@359 | 1204 | break; |
nkeynes@359 | 1205 | default: |
nkeynes@359 | 1206 | UNDEF(); |
nkeynes@359 | 1207 | break; |
nkeynes@359 | 1208 | } |
nkeynes@359 | 1209 | break; |
nkeynes@359 | 1210 | case 0x1: |
nkeynes@359 | 1211 | { /* STC.L Rm_BANK, @-Rn */ |
nkeynes@359 | 1212 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm_BANK = ((ir>>4)&0x7); |
nkeynes@359 | 1213 | CHECKPRIV(); |
nkeynes@359 | 1214 | sh4r.r[Rn] -= 4; |
nkeynes@359 | 1215 | CHECKWALIGN32( sh4r.r[Rn] ); |
nkeynes@359 | 1216 | MEM_WRITE_LONG( sh4r.r[Rn], sh4r.r_bank[Rm_BANK] ); |
nkeynes@359 | 1217 | } |
nkeynes@359 | 1218 | break; |
nkeynes@359 | 1219 | } |
nkeynes@359 | 1220 | break; |
nkeynes@359 | 1221 | case 0x4: |
nkeynes@359 | 1222 | switch( (ir&0xF0) >> 4 ) { |
nkeynes@359 | 1223 | case 0x0: |
nkeynes@359 | 1224 | { /* ROTL Rn */ |
nkeynes@359 | 1225 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1226 | sh4r.t = sh4r.r[Rn] >> 31; |
nkeynes@359 | 1227 | sh4r.r[Rn] <<= 1; |
nkeynes@359 | 1228 | sh4r.r[Rn] |= sh4r.t; |
nkeynes@359 | 1229 | } |
nkeynes@359 | 1230 | break; |
nkeynes@359 | 1231 | case 0x2: |
nkeynes@359 | 1232 | { /* ROTCL Rn */ |
nkeynes@359 | 1233 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1234 | tmp = sh4r.r[Rn] >> 31; |
nkeynes@359 | 1235 | sh4r.r[Rn] <<= 1; |
nkeynes@359 | 1236 | sh4r.r[Rn] |= sh4r.t; |
nkeynes@359 | 1237 | sh4r.t = tmp; |
nkeynes@359 | 1238 | } |
nkeynes@359 | 1239 | break; |
nkeynes@359 | 1240 | default: |
nkeynes@359 | 1241 | UNDEF(); |
nkeynes@359 | 1242 | break; |
nkeynes@359 | 1243 | } |
nkeynes@359 | 1244 | break; |
nkeynes@359 | 1245 | case 0x5: |
nkeynes@359 | 1246 | switch( (ir&0xF0) >> 4 ) { |
nkeynes@359 | 1247 | case 0x0: |
nkeynes@359 | 1248 | { /* ROTR Rn */ |
nkeynes@359 | 1249 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1250 | sh4r.t = sh4r.r[Rn] & 0x00000001; |
nkeynes@359 | 1251 | sh4r.r[Rn] >>= 1; |
nkeynes@359 | 1252 | sh4r.r[Rn] |= (sh4r.t << 31); |
nkeynes@359 | 1253 | } |
nkeynes@359 | 1254 | break; |
nkeynes@359 | 1255 | case 0x1: |
nkeynes@359 | 1256 | { /* CMP/PL Rn */ |
nkeynes@359 | 1257 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1258 | sh4r.t = ( ((int32_t)sh4r.r[Rn]) > 0 ? 1 : 0 ); |
nkeynes@359 | 1259 | } |
nkeynes@359 | 1260 | break; |
nkeynes@359 | 1261 | case 0x2: |
nkeynes@359 | 1262 | { /* ROTCR Rn */ |
nkeynes@359 | 1263 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1264 | tmp = sh4r.r[Rn] & 0x00000001; |
nkeynes@359 | 1265 | sh4r.r[Rn] >>= 1; |
nkeynes@359 | 1266 | sh4r.r[Rn] |= (sh4r.t << 31 ); |
nkeynes@359 | 1267 | sh4r.t = tmp; |
nkeynes@359 | 1268 | } |
nkeynes@359 | 1269 | break; |
nkeynes@359 | 1270 | default: |
nkeynes@359 | 1271 | UNDEF(); |
nkeynes@359 | 1272 | break; |
nkeynes@359 | 1273 | } |
nkeynes@359 | 1274 | break; |
nkeynes@359 | 1275 | case 0x6: |
nkeynes@359 | 1276 | switch( (ir&0xF0) >> 4 ) { |
nkeynes@359 | 1277 | case 0x0: |
nkeynes@359 | 1278 | { /* LDS.L @Rm+, MACH */ |
nkeynes@359 | 1279 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1280 | CHECKRALIGN32( sh4r.r[Rm] ); |
nkeynes@359 | 1281 | sh4r.mac = (sh4r.mac & 0x00000000FFFFFFFF) | |
nkeynes@359 | 1282 | (((uint64_t)MEM_READ_LONG(sh4r.r[Rm]))<<32); |
nkeynes@359 | 1283 | sh4r.r[Rm] += 4; |
nkeynes@359 | 1284 | } |
nkeynes@359 | 1285 | break; |
nkeynes@359 | 1286 | case 0x1: |
nkeynes@359 | 1287 | { /* LDS.L @Rm+, MACL */ |
nkeynes@359 | 1288 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1289 | CHECKRALIGN32( sh4r.r[Rm] ); |
nkeynes@359 | 1290 | sh4r.mac = (sh4r.mac & 0xFFFFFFFF00000000LL) | |
nkeynes@359 | 1291 | (uint64_t)((uint32_t)MEM_READ_LONG(sh4r.r[Rm])); |
nkeynes@359 | 1292 | sh4r.r[Rm] += 4; |
nkeynes@359 | 1293 | } |
nkeynes@359 | 1294 | break; |
nkeynes@359 | 1295 | case 0x2: |
nkeynes@359 | 1296 | { /* LDS.L @Rm+, PR */ |
nkeynes@359 | 1297 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1298 | CHECKRALIGN32( sh4r.r[Rm] ); |
nkeynes@359 | 1299 | sh4r.pr = MEM_READ_LONG( sh4r.r[Rm] ); |
nkeynes@359 | 1300 | sh4r.r[Rm] += 4; |
nkeynes@359 | 1301 | } |
nkeynes@359 | 1302 | break; |
nkeynes@359 | 1303 | case 0x3: |
nkeynes@359 | 1304 | { /* LDC.L @Rm+, SGR */ |
nkeynes@359 | 1305 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1306 | CHECKPRIV(); |
nkeynes@359 | 1307 | CHECKRALIGN32( sh4r.r[Rm] ); |
nkeynes@359 | 1308 | sh4r.sgr = MEM_READ_LONG(sh4r.r[Rm]); |
nkeynes@359 | 1309 | sh4r.r[Rm] +=4; |
nkeynes@359 | 1310 | } |
nkeynes@359 | 1311 | break; |
nkeynes@359 | 1312 | case 0x5: |
nkeynes@359 | 1313 | { /* LDS.L @Rm+, FPUL */ |
nkeynes@359 | 1314 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1315 | CHECKRALIGN32( sh4r.r[Rm] ); |
nkeynes@359 | 1316 | sh4r.fpul = MEM_READ_LONG(sh4r.r[Rm]); |
nkeynes@359 | 1317 | sh4r.r[Rm] +=4; |
nkeynes@359 | 1318 | } |
nkeynes@359 | 1319 | break; |
nkeynes@359 | 1320 | case 0x6: |
nkeynes@359 | 1321 | { /* LDS.L @Rm+, FPSCR */ |
nkeynes@359 | 1322 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1323 | CHECKRALIGN32( sh4r.r[Rm] ); |
nkeynes@359 | 1324 | sh4r.fpscr = MEM_READ_LONG(sh4r.r[Rm]); |
nkeynes@359 | 1325 | sh4r.r[Rm] +=4; |
nkeynes@359 | 1326 | } |
nkeynes@359 | 1327 | break; |
nkeynes@359 | 1328 | case 0xF: |
nkeynes@359 | 1329 | { /* LDC.L @Rm+, DBR */ |
nkeynes@359 | 1330 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1331 | CHECKPRIV(); |
nkeynes@359 | 1332 | CHECKRALIGN32( sh4r.r[Rm] ); |
nkeynes@359 | 1333 | sh4r.dbr = MEM_READ_LONG(sh4r.r[Rm]); |
nkeynes@359 | 1334 | sh4r.r[Rm] +=4; |
nkeynes@359 | 1335 | } |
nkeynes@359 | 1336 | break; |
nkeynes@359 | 1337 | default: |
nkeynes@359 | 1338 | UNDEF(); |
nkeynes@359 | 1339 | break; |
nkeynes@359 | 1340 | } |
nkeynes@359 | 1341 | break; |
nkeynes@359 | 1342 | case 0x7: |
nkeynes@359 | 1343 | switch( (ir&0x80) >> 7 ) { |
nkeynes@359 | 1344 | case 0x0: |
nkeynes@359 | 1345 | switch( (ir&0x70) >> 4 ) { |
nkeynes@359 | 1346 | case 0x0: |
nkeynes@359 | 1347 | { /* LDC.L @Rm+, SR */ |
nkeynes@359 | 1348 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1349 | CHECKSLOTILLEGAL(); |
nkeynes@359 | 1350 | CHECKPRIV(); |
nkeynes@359 | 1351 | CHECKWALIGN32( sh4r.r[Rm] ); |
nkeynes@359 | 1352 | sh4_load_sr( MEM_READ_LONG(sh4r.r[Rm]) ); |
nkeynes@359 | 1353 | sh4r.r[Rm] +=4; |
nkeynes@359 | 1354 | } |
nkeynes@359 | 1355 | break; |
nkeynes@359 | 1356 | case 0x1: |
nkeynes@359 | 1357 | { /* LDC.L @Rm+, GBR */ |
nkeynes@359 | 1358 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1359 | CHECKRALIGN32( sh4r.r[Rm] ); |
nkeynes@359 | 1360 | sh4r.gbr = MEM_READ_LONG(sh4r.r[Rm]); |
nkeynes@359 | 1361 | sh4r.r[Rm] +=4; |
nkeynes@359 | 1362 | } |
nkeynes@359 | 1363 | break; |
nkeynes@359 | 1364 | case 0x2: |
nkeynes@359 | 1365 | { /* LDC.L @Rm+, VBR */ |
nkeynes@359 | 1366 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1367 | CHECKPRIV(); |
nkeynes@359 | 1368 | CHECKRALIGN32( sh4r.r[Rm] ); |
nkeynes@359 | 1369 | sh4r.vbr = MEM_READ_LONG(sh4r.r[Rm]); |
nkeynes@359 | 1370 | sh4r.r[Rm] +=4; |
nkeynes@359 | 1371 | } |
nkeynes@359 | 1372 | break; |
nkeynes@359 | 1373 | case 0x3: |
nkeynes@359 | 1374 | { /* LDC.L @Rm+, SSR */ |
nkeynes@359 | 1375 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1376 | CHECKPRIV(); |
nkeynes@359 | 1377 | CHECKRALIGN32( sh4r.r[Rm] ); |
nkeynes@359 | 1378 | sh4r.ssr = MEM_READ_LONG(sh4r.r[Rm]); |
nkeynes@359 | 1379 | sh4r.r[Rm] +=4; |
nkeynes@359 | 1380 | } |
nkeynes@359 | 1381 | break; |
nkeynes@359 | 1382 | case 0x4: |
nkeynes@359 | 1383 | { /* LDC.L @Rm+, SPC */ |
nkeynes@359 | 1384 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1385 | CHECKPRIV(); |
nkeynes@359 | 1386 | CHECKRALIGN32( sh4r.r[Rm] ); |
nkeynes@359 | 1387 | sh4r.spc = MEM_READ_LONG(sh4r.r[Rm]); |
nkeynes@359 | 1388 | sh4r.r[Rm] +=4; |
nkeynes@359 | 1389 | } |
nkeynes@359 | 1390 | break; |
nkeynes@359 | 1391 | default: |
nkeynes@359 | 1392 | UNDEF(); |
nkeynes@359 | 1393 | break; |
nkeynes@359 | 1394 | } |
nkeynes@359 | 1395 | break; |
nkeynes@359 | 1396 | case 0x1: |
nkeynes@359 | 1397 | { /* LDC.L @Rm+, Rn_BANK */ |
nkeynes@359 | 1398 | uint32_t Rm = ((ir>>8)&0xF); uint32_t Rn_BANK = ((ir>>4)&0x7); |
nkeynes@359 | 1399 | CHECKPRIV(); |
nkeynes@359 | 1400 | CHECKRALIGN32( sh4r.r[Rm] ); |
nkeynes@359 | 1401 | sh4r.r_bank[Rn_BANK] = MEM_READ_LONG( sh4r.r[Rm] ); |
nkeynes@359 | 1402 | sh4r.r[Rm] += 4; |
nkeynes@359 | 1403 | } |
nkeynes@359 | 1404 | break; |
nkeynes@359 | 1405 | } |
nkeynes@359 | 1406 | break; |
nkeynes@359 | 1407 | case 0x8: |
nkeynes@359 | 1408 | switch( (ir&0xF0) >> 4 ) { |
nkeynes@359 | 1409 | case 0x0: |
nkeynes@359 | 1410 | { /* SHLL2 Rn */ |
nkeynes@359 | 1411 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1412 | sh4r.r[Rn] <<= 2; |
nkeynes@359 | 1413 | } |
nkeynes@359 | 1414 | break; |
nkeynes@359 | 1415 | case 0x1: |
nkeynes@359 | 1416 | { /* SHLL8 Rn */ |
nkeynes@359 | 1417 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1418 | sh4r.r[Rn] <<= 8; |
nkeynes@359 | 1419 | } |
nkeynes@359 | 1420 | break; |
nkeynes@359 | 1421 | case 0x2: |
nkeynes@359 | 1422 | { /* SHLL16 Rn */ |
nkeynes@359 | 1423 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1424 | sh4r.r[Rn] <<= 16; |
nkeynes@359 | 1425 | } |
nkeynes@359 | 1426 | break; |
nkeynes@359 | 1427 | default: |
nkeynes@359 | 1428 | UNDEF(); |
nkeynes@359 | 1429 | break; |
nkeynes@359 | 1430 | } |
nkeynes@359 | 1431 | break; |
nkeynes@359 | 1432 | case 0x9: |
nkeynes@359 | 1433 | switch( (ir&0xF0) >> 4 ) { |
nkeynes@359 | 1434 | case 0x0: |
nkeynes@359 | 1435 | { /* SHLR2 Rn */ |
nkeynes@359 | 1436 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1437 | sh4r.r[Rn] >>= 2; |
nkeynes@359 | 1438 | } |
nkeynes@359 | 1439 | break; |
nkeynes@359 | 1440 | case 0x1: |
nkeynes@359 | 1441 | { /* SHLR8 Rn */ |
nkeynes@359 | 1442 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1443 | sh4r.r[Rn] >>= 8; |
nkeynes@359 | 1444 | } |
nkeynes@359 | 1445 | break; |
nkeynes@359 | 1446 | case 0x2: |
nkeynes@359 | 1447 | { /* SHLR16 Rn */ |
nkeynes@359 | 1448 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1449 | sh4r.r[Rn] >>= 16; |
nkeynes@359 | 1450 | } |
nkeynes@359 | 1451 | break; |
nkeynes@359 | 1452 | default: |
nkeynes@359 | 1453 | UNDEF(); |
nkeynes@359 | 1454 | break; |
nkeynes@359 | 1455 | } |
nkeynes@359 | 1456 | break; |
nkeynes@359 | 1457 | case 0xA: |
nkeynes@359 | 1458 | switch( (ir&0xF0) >> 4 ) { |
nkeynes@359 | 1459 | case 0x0: |
nkeynes@359 | 1460 | { /* LDS Rm, MACH */ |
nkeynes@359 | 1461 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1462 | sh4r.mac = (sh4r.mac & 0x00000000FFFFFFFF) | |
nkeynes@359 | 1463 | (((uint64_t)sh4r.r[Rm])<<32); |
nkeynes@359 | 1464 | } |
nkeynes@359 | 1465 | break; |
nkeynes@359 | 1466 | case 0x1: |
nkeynes@359 | 1467 | { /* LDS Rm, MACL */ |
nkeynes@359 | 1468 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1469 | sh4r.mac = (sh4r.mac & 0xFFFFFFFF00000000LL) | |
nkeynes@359 | 1470 | (uint64_t)((uint32_t)(sh4r.r[Rm])); |
nkeynes@359 | 1471 | } |
nkeynes@359 | 1472 | break; |
nkeynes@359 | 1473 | case 0x2: |
nkeynes@359 | 1474 | { /* LDS Rm, PR */ |
nkeynes@359 | 1475 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1476 | sh4r.pr = sh4r.r[Rm]; |
nkeynes@359 | 1477 | } |
nkeynes@359 | 1478 | break; |
nkeynes@359 | 1479 | case 0x3: |
nkeynes@359 | 1480 | { /* LDC Rm, SGR */ |
nkeynes@359 | 1481 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1482 | CHECKPRIV(); |
nkeynes@359 | 1483 | sh4r.sgr = sh4r.r[Rm]; |
nkeynes@359 | 1484 | } |
nkeynes@359 | 1485 | break; |
nkeynes@359 | 1486 | case 0x5: |
nkeynes@359 | 1487 | { /* LDS Rm, FPUL */ |
nkeynes@359 | 1488 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1489 | sh4r.fpul = sh4r.r[Rm]; |
nkeynes@359 | 1490 | } |
nkeynes@359 | 1491 | break; |
nkeynes@359 | 1492 | case 0x6: |
nkeynes@359 | 1493 | { /* LDS Rm, FPSCR */ |
nkeynes@359 | 1494 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1495 | sh4r.fpscr = sh4r.r[Rm]; |
nkeynes@359 | 1496 | } |
nkeynes@359 | 1497 | break; |
nkeynes@359 | 1498 | case 0xF: |
nkeynes@359 | 1499 | { /* LDC Rm, DBR */ |
nkeynes@359 | 1500 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1501 | CHECKPRIV(); |
nkeynes@359 | 1502 | sh4r.dbr = sh4r.r[Rm]; |
nkeynes@359 | 1503 | } |
nkeynes@359 | 1504 | break; |
nkeynes@359 | 1505 | default: |
nkeynes@359 | 1506 | UNDEF(); |
nkeynes@359 | 1507 | break; |
nkeynes@359 | 1508 | } |
nkeynes@359 | 1509 | break; |
nkeynes@359 | 1510 | case 0xB: |
nkeynes@359 | 1511 | switch( (ir&0xF0) >> 4 ) { |
nkeynes@359 | 1512 | case 0x0: |
nkeynes@359 | 1513 | { /* JSR @Rn */ |
nkeynes@359 | 1514 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1515 | CHECKDEST( sh4r.r[Rn] ); |
nkeynes@359 | 1516 | CHECKSLOTILLEGAL(); |
nkeynes@359 | 1517 | sh4r.in_delay_slot = 1; |
nkeynes@359 | 1518 | sh4r.pc = sh4r.new_pc; |
nkeynes@359 | 1519 | sh4r.new_pc = sh4r.r[Rn]; |
nkeynes@359 | 1520 | sh4r.pr = pc + 4; |
nkeynes@359 | 1521 | TRACE_CALL( pc, sh4r.new_pc ); |
nkeynes@359 | 1522 | return TRUE; |
nkeynes@359 | 1523 | } |
nkeynes@359 | 1524 | break; |
nkeynes@359 | 1525 | case 0x1: |
nkeynes@359 | 1526 | { /* TAS.B @Rn */ |
nkeynes@359 | 1527 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1528 | tmp = MEM_READ_BYTE( sh4r.r[Rn] ); |
nkeynes@359 | 1529 | sh4r.t = ( tmp == 0 ? 1 : 0 ); |
nkeynes@359 | 1530 | MEM_WRITE_BYTE( sh4r.r[Rn], tmp | 0x80 ); |
nkeynes@359 | 1531 | } |
nkeynes@359 | 1532 | break; |
nkeynes@359 | 1533 | case 0x2: |
nkeynes@359 | 1534 | { /* JMP @Rn */ |
nkeynes@359 | 1535 | uint32_t Rn = ((ir>>8)&0xF); |
nkeynes@359 | 1536 | CHECKDEST( sh4r.r[Rn] ); |
nkeynes@359 | 1537 | CHECKSLOTILLEGAL(); |
nkeynes@359 | 1538 | sh4r.in_delay_slot = 1; |
nkeynes@359 | 1539 | sh4r.pc = sh4r.new_pc; |
nkeynes@359 | 1540 | sh4r.new_pc = sh4r.r[Rn]; |
nkeynes@359 | 1541 | return TRUE; |
nkeynes@359 | 1542 | } |
nkeynes@359 | 1543 | break; |
nkeynes@359 | 1544 | default: |
nkeynes@359 | 1545 | UNDEF(); |
nkeynes@359 | 1546 | break; |
nkeynes@359 | 1547 | } |
nkeynes@359 | 1548 | break; |
nkeynes@359 | 1549 | case 0xC: |
nkeynes@359 | 1550 | { /* SHAD Rm, Rn */ |
nkeynes@359 | 1551 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1552 | tmp = sh4r.r[Rm]; |
nkeynes@359 | 1553 | if( (tmp & 0x80000000) == 0 ) sh4r.r[Rn] <<= (tmp&0x1f); |
nkeynes@359 | 1554 | else if( (tmp & 0x1F) == 0 ) |
nkeynes@359 | 1555 | sh4r.r[Rn] = ((int32_t)sh4r.r[Rn]) >> 31; |
nkeynes@359 | 1556 | else |
nkeynes@359 | 1557 | sh4r.r[Rn] = ((int32_t)sh4r.r[Rn]) >> (((~sh4r.r[Rm]) & 0x1F)+1); |
nkeynes@359 | 1558 | } |
nkeynes@359 | 1559 | break; |
nkeynes@359 | 1560 | case 0xD: |
nkeynes@359 | 1561 | { /* SHLD Rm, Rn */ |
nkeynes@359 | 1562 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1563 | tmp = sh4r.r[Rm]; |
nkeynes@359 | 1564 | if( (tmp & 0x80000000) == 0 ) sh4r.r[Rn] <<= (tmp&0x1f); |
nkeynes@359 | 1565 | else if( (tmp & 0x1F) == 0 ) sh4r.r[Rn] = 0; |
nkeynes@359 | 1566 | else sh4r.r[Rn] >>= (((~tmp) & 0x1F)+1); |
nkeynes@359 | 1567 | } |
nkeynes@359 | 1568 | break; |
nkeynes@359 | 1569 | case 0xE: |
nkeynes@359 | 1570 | switch( (ir&0x80) >> 7 ) { |
nkeynes@359 | 1571 | case 0x0: |
nkeynes@359 | 1572 | switch( (ir&0x70) >> 4 ) { |
nkeynes@359 | 1573 | case 0x0: |
nkeynes@359 | 1574 | { /* LDC Rm, SR */ |
nkeynes@359 | 1575 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1576 | CHECKSLOTILLEGAL(); |
nkeynes@359 | 1577 | CHECKPRIV(); |
nkeynes@359 | 1578 | sh4_load_sr( sh4r.r[Rm] ); |
nkeynes@359 | 1579 | } |
nkeynes@359 | 1580 | break; |
nkeynes@359 | 1581 | case 0x1: |
nkeynes@359 | 1582 | { /* LDC Rm, GBR */ |
nkeynes@359 | 1583 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1584 | sh4r.gbr = sh4r.r[Rm]; |
nkeynes@359 | 1585 | } |
nkeynes@359 | 1586 | break; |
nkeynes@359 | 1587 | case 0x2: |
nkeynes@359 | 1588 | { /* LDC Rm, VBR */ |
nkeynes@359 | 1589 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1590 | CHECKPRIV(); |
nkeynes@359 | 1591 | sh4r.vbr = sh4r.r[Rm]; |
nkeynes@359 | 1592 | } |
nkeynes@359 | 1593 | break; |
nkeynes@359 | 1594 | case 0x3: |
nkeynes@359 | 1595 | { /* LDC Rm, SSR */ |
nkeynes@359 | 1596 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1597 | CHECKPRIV(); |
nkeynes@359 | 1598 | sh4r.ssr = sh4r.r[Rm]; |
nkeynes@359 | 1599 | } |
nkeynes@359 | 1600 | break; |
nkeynes@359 | 1601 | case 0x4: |
nkeynes@359 | 1602 | { /* LDC Rm, SPC */ |
nkeynes@359 | 1603 | uint32_t Rm = ((ir>>8)&0xF); |
nkeynes@359 | 1604 | CHECKPRIV(); |
nkeynes@359 | 1605 | sh4r.spc = sh4r.r[Rm]; |
nkeynes@359 | 1606 | } |
nkeynes@359 | 1607 | break; |
nkeynes@359 | 1608 | default: |
nkeynes@359 | 1609 | UNDEF(); |
nkeynes@359 | 1610 | break; |
nkeynes@359 | 1611 | } |
nkeynes@359 | 1612 | break; |
nkeynes@359 | 1613 | case 0x1: |
nkeynes@359 | 1614 | { /* LDC Rm, Rn_BANK */ |
nkeynes@359 | 1615 | uint32_t Rm = ((ir>>8)&0xF); uint32_t Rn_BANK = ((ir>>4)&0x7); |
nkeynes@359 | 1616 | CHECKPRIV(); |
nkeynes@359 | 1617 | sh4r.r_bank[Rn_BANK] = sh4r.r[Rm]; |
nkeynes@359 | 1618 | } |
nkeynes@359 | 1619 | break; |
nkeynes@359 | 1620 | } |
nkeynes@359 | 1621 | break; |
nkeynes@359 | 1622 | case 0xF: |
nkeynes@359 | 1623 | { /* MAC.W @Rm+, @Rn+ */ |
nkeynes@359 | 1624 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1625 | CHECKRALIGN16( sh4r.r[Rn] ); |
nkeynes@359 | 1626 | CHECKRALIGN16( sh4r.r[Rm] ); |
nkeynes@359 | 1627 | int32_t stmp = SIGNEXT16(MEM_READ_WORD(sh4r.r[Rn])); |
nkeynes@359 | 1628 | sh4r.r[Rn] += 2; |
nkeynes@359 | 1629 | stmp = stmp * SIGNEXT16(MEM_READ_WORD(sh4r.r[Rm])); |
nkeynes@359 | 1630 | sh4r.r[Rm] += 2; |
nkeynes@359 | 1631 | if( sh4r.s ) { |
nkeynes@359 | 1632 | int64_t tmpl = (int64_t)((int32_t)sh4r.mac) + (int64_t)stmp; |
nkeynes@359 | 1633 | if( tmpl > (int64_t)0x000000007FFFFFFFLL ) { |
nkeynes@359 | 1634 | sh4r.mac = 0x000000017FFFFFFFLL; |
nkeynes@359 | 1635 | } else if( tmpl < (int64_t)0xFFFFFFFF80000000LL ) { |
nkeynes@359 | 1636 | sh4r.mac = 0x0000000180000000LL; |
nkeynes@359 | 1637 | } else { |
nkeynes@359 | 1638 | sh4r.mac = (sh4r.mac & 0xFFFFFFFF00000000LL) | |
nkeynes@359 | 1639 | ((uint32_t)(sh4r.mac + stmp)); |
nkeynes@359 | 1640 | } |
nkeynes@359 | 1641 | } else { |
nkeynes@359 | 1642 | sh4r.mac += SIGNEXT32(stmp); |
nkeynes@359 | 1643 | } |
nkeynes@359 | 1644 | } |
nkeynes@359 | 1645 | break; |
nkeynes@359 | 1646 | } |
nkeynes@359 | 1647 | break; |
nkeynes@359 | 1648 | case 0x5: |
nkeynes@359 | 1649 | { /* MOV.L @(disp, Rm), Rn */ |
nkeynes@359 | 1650 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); uint32_t disp = (ir&0xF)<<2; |
nkeynes@359 | 1651 | tmp = sh4r.r[Rm] + disp; |
nkeynes@359 | 1652 | CHECKRALIGN32( tmp ); |
nkeynes@359 | 1653 | sh4r.r[Rn] = MEM_READ_LONG( tmp ); |
nkeynes@359 | 1654 | } |
nkeynes@359 | 1655 | break; |
nkeynes@359 | 1656 | case 0x6: |
nkeynes@359 | 1657 | switch( ir&0xF ) { |
nkeynes@359 | 1658 | case 0x0: |
nkeynes@359 | 1659 | { /* MOV.B @Rm, Rn */ |
nkeynes@359 | 1660 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1661 | sh4r.r[Rn] = MEM_READ_BYTE( sh4r.r[Rm] ); |
nkeynes@359 | 1662 | } |
nkeynes@359 | 1663 | break; |
nkeynes@359 | 1664 | case 0x1: |
nkeynes@359 | 1665 | { /* MOV.W @Rm, Rn */ |
nkeynes@359 | 1666 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1667 | CHECKRALIGN16( sh4r.r[Rm] ); sh4r.r[Rn] = MEM_READ_WORD( sh4r.r[Rm] ); |
nkeynes@359 | 1668 | } |
nkeynes@359 | 1669 | break; |
nkeynes@359 | 1670 | case 0x2: |
nkeynes@359 | 1671 | { /* MOV.L @Rm, Rn */ |
nkeynes@359 | 1672 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1673 | CHECKRALIGN32( sh4r.r[Rm] ); sh4r.r[Rn] = MEM_READ_LONG( sh4r.r[Rm] ); |
nkeynes@359 | 1674 | } |
nkeynes@359 | 1675 | break; |
nkeynes@359 | 1676 | case 0x3: |
nkeynes@359 | 1677 | { /* MOV Rm, Rn */ |
nkeynes@359 | 1678 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1679 | sh4r.r[Rn] = sh4r.r[Rm]; |
nkeynes@359 | 1680 | } |
nkeynes@359 | 1681 | break; |
nkeynes@359 | 1682 | case 0x4: |
nkeynes@359 | 1683 | { /* MOV.B @Rm+, Rn */ |
nkeynes@359 | 1684 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1685 | sh4r.r[Rn] = MEM_READ_BYTE( sh4r.r[Rm] ); sh4r.r[Rm] ++; |
nkeynes@359 | 1686 | } |
nkeynes@359 | 1687 | break; |
nkeynes@359 | 1688 | case 0x5: |
nkeynes@359 | 1689 | { /* MOV.W @Rm+, Rn */ |
nkeynes@359 | 1690 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1691 | CHECKRALIGN16( sh4r.r[Rm] ); sh4r.r[Rn] = MEM_READ_WORD( sh4r.r[Rm] ); sh4r.r[Rm] += 2; |
nkeynes@359 | 1692 | } |
nkeynes@359 | 1693 | break; |
nkeynes@359 | 1694 | case 0x6: |
nkeynes@359 | 1695 | { /* MOV.L @Rm+, Rn */ |
nkeynes@359 | 1696 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1697 | CHECKRALIGN32( sh4r.r[Rm] ); sh4r.r[Rn] = MEM_READ_LONG( sh4r.r[Rm] ); sh4r.r[Rm] += 4; |
nkeynes@359 | 1698 | } |
nkeynes@359 | 1699 | break; |
nkeynes@359 | 1700 | case 0x7: |
nkeynes@359 | 1701 | { /* NOT Rm, Rn */ |
nkeynes@359 | 1702 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1703 | sh4r.r[Rn] = ~sh4r.r[Rm]; |
nkeynes@359 | 1704 | } |
nkeynes@359 | 1705 | break; |
nkeynes@359 | 1706 | case 0x8: |
nkeynes@359 | 1707 | { /* SWAP.B Rm, Rn */ |
nkeynes@359 | 1708 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1709 | sh4r.r[Rn] = (sh4r.r[Rm]&0xFFFF0000) | ((sh4r.r[Rm]&0x0000FF00)>>8) | ((sh4r.r[Rm]&0x000000FF)<<8); |
nkeynes@359 | 1710 | } |
nkeynes@359 | 1711 | break; |
nkeynes@359 | 1712 | case 0x9: |
nkeynes@359 | 1713 | { /* SWAP.W Rm, Rn */ |
nkeynes@359 | 1714 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1715 | sh4r.r[Rn] = (sh4r.r[Rm]>>16) | (sh4r.r[Rm]<<16); |
nkeynes@359 | 1716 | } |
nkeynes@359 | 1717 | break; |
nkeynes@359 | 1718 | case 0xA: |
nkeynes@359 | 1719 | { /* NEGC Rm, Rn */ |
nkeynes@359 | 1720 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1721 | tmp = 0 - sh4r.r[Rm]; |
nkeynes@359 | 1722 | sh4r.r[Rn] = tmp - sh4r.t; |
nkeynes@359 | 1723 | sh4r.t = ( 0<tmp || tmp<sh4r.r[Rn] ? 1 : 0 ); |
nkeynes@359 | 1724 | } |
nkeynes@359 | 1725 | break; |
nkeynes@359 | 1726 | case 0xB: |
nkeynes@359 | 1727 | { /* NEG Rm, Rn */ |
nkeynes@359 | 1728 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1729 | sh4r.r[Rn] = 0 - sh4r.r[Rm]; |
nkeynes@359 | 1730 | } |
nkeynes@359 | 1731 | break; |
nkeynes@359 | 1732 | case 0xC: |
nkeynes@359 | 1733 | { /* EXTU.B Rm, Rn */ |
nkeynes@359 | 1734 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1735 | sh4r.r[Rn] = sh4r.r[Rm]&0x000000FF; |
nkeynes@359 | 1736 | } |
nkeynes@359 | 1737 | break; |
nkeynes@359 | 1738 | case 0xD: |
nkeynes@359 | 1739 | { /* EXTU.W Rm, Rn */ |
nkeynes@359 | 1740 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1741 | sh4r.r[Rn] = sh4r.r[Rm]&0x0000FFFF; |
nkeynes@359 | 1742 | } |
nkeynes@359 | 1743 | break; |
nkeynes@359 | 1744 | case 0xE: |
nkeynes@359 | 1745 | { /* EXTS.B Rm, Rn */ |
nkeynes@359 | 1746 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1747 | sh4r.r[Rn] = SIGNEXT8( sh4r.r[Rm]&0x000000FF ); |
nkeynes@359 | 1748 | } |
nkeynes@359 | 1749 | break; |
nkeynes@359 | 1750 | case 0xF: |
nkeynes@359 | 1751 | { /* EXTS.W Rm, Rn */ |
nkeynes@359 | 1752 | uint32_t Rn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 1753 | sh4r.r[Rn] = SIGNEXT16( sh4r.r[Rm]&0x0000FFFF ); |
nkeynes@359 | 1754 | } |
nkeynes@359 | 1755 | break; |
nkeynes@359 | 1756 | } |
nkeynes@359 | 1757 | break; |
nkeynes@359 | 1758 | case 0x7: |
nkeynes@359 | 1759 | { /* ADD #imm, Rn */ |
nkeynes@359 | 1760 | uint32_t Rn = ((ir>>8)&0xF); int32_t imm = SIGNEXT8(ir&0xFF); |
nkeynes@359 | 1761 | sh4r.r[Rn] += imm; |
nkeynes@359 | 1762 | } |
nkeynes@359 | 1763 | break; |
nkeynes@359 | 1764 | case 0x8: |
nkeynes@359 | 1765 | switch( (ir&0xF00) >> 8 ) { |
nkeynes@359 | 1766 | case 0x0: |
nkeynes@359 | 1767 | { /* MOV.B R0, @(disp, Rn) */ |
nkeynes@359 | 1768 | uint32_t Rn = ((ir>>4)&0xF); uint32_t disp = (ir&0xF); |
nkeynes@359 | 1769 | MEM_WRITE_BYTE( sh4r.r[Rn] + disp, R0 ); |
nkeynes@359 | 1770 | } |
nkeynes@359 | 1771 | break; |
nkeynes@359 | 1772 | case 0x1: |
nkeynes@359 | 1773 | { /* MOV.W R0, @(disp, Rn) */ |
nkeynes@359 | 1774 | uint32_t Rn = ((ir>>4)&0xF); uint32_t disp = (ir&0xF)<<1; |
nkeynes@359 | 1775 | tmp = sh4r.r[Rn] + disp; |
nkeynes@359 | 1776 | CHECKWALIGN16( tmp ); |
nkeynes@359 | 1777 | MEM_WRITE_WORD( tmp, R0 ); |
nkeynes@359 | 1778 | } |
nkeynes@359 | 1779 | break; |
nkeynes@359 | 1780 | case 0x4: |
nkeynes@359 | 1781 | { /* MOV.B @(disp, Rm), R0 */ |
nkeynes@359 | 1782 | uint32_t Rm = ((ir>>4)&0xF); uint32_t disp = (ir&0xF); |
nkeynes@359 | 1783 | R0 = MEM_READ_BYTE( sh4r.r[Rm] + disp ); |
nkeynes@359 | 1784 | } |
nkeynes@359 | 1785 | break; |
nkeynes@359 | 1786 | case 0x5: |
nkeynes@359 | 1787 | { /* MOV.W @(disp, Rm), R0 */ |
nkeynes@359 | 1788 | uint32_t Rm = ((ir>>4)&0xF); uint32_t disp = (ir&0xF)<<1; |
nkeynes@359 | 1789 | tmp = sh4r.r[Rm] + disp; |
nkeynes@359 | 1790 | CHECKRALIGN16( tmp ); |
nkeynes@359 | 1791 | R0 = MEM_READ_WORD( tmp ); |
nkeynes@359 | 1792 | } |
nkeynes@359 | 1793 | break; |
nkeynes@359 | 1794 | case 0x8: |
nkeynes@359 | 1795 | { /* CMP/EQ #imm, R0 */ |
nkeynes@359 | 1796 | int32_t imm = SIGNEXT8(ir&0xFF); |
nkeynes@359 | 1797 | sh4r.t = ( R0 == imm ? 1 : 0 ); |
nkeynes@359 | 1798 | } |
nkeynes@359 | 1799 | break; |
nkeynes@359 | 1800 | case 0x9: |
nkeynes@359 | 1801 | { /* BT disp */ |
nkeynes@359 | 1802 | int32_t disp = SIGNEXT8(ir&0xFF)<<1; |
nkeynes@359 | 1803 | CHECKSLOTILLEGAL(); |
nkeynes@359 | 1804 | if( sh4r.t ) { |
nkeynes@359 | 1805 | CHECKDEST( sh4r.pc + disp + 4 ) |
nkeynes@359 | 1806 | sh4r.pc += disp + 4; |
nkeynes@359 | 1807 | sh4r.new_pc = sh4r.pc + 2; |
nkeynes@27 | 1808 | return TRUE; |
nkeynes@359 | 1809 | } |
nkeynes@359 | 1810 | } |
nkeynes@359 | 1811 | break; |
nkeynes@359 | 1812 | case 0xB: |
nkeynes@359 | 1813 | { /* BF disp */ |
nkeynes@359 | 1814 | int32_t disp = SIGNEXT8(ir&0xFF)<<1; |
nkeynes@359 | 1815 | CHECKSLOTILLEGAL(); |
nkeynes@359 | 1816 | if( !sh4r.t ) { |
nkeynes@359 | 1817 | CHECKDEST( sh4r.pc + disp + 4 ) |
nkeynes@359 | 1818 | sh4r.pc += disp + 4; |
nkeynes@359 | 1819 | sh4r.new_pc = sh4r.pc + 2; |
nkeynes@359 | 1820 | return TRUE; |
nkeynes@359 | 1821 | } |
nkeynes@359 | 1822 | } |
nkeynes@359 | 1823 | break; |
nkeynes@359 | 1824 | case 0xD: |
nkeynes@359 | 1825 | { /* BT/S disp */ |
nkeynes@359 | 1826 | int32_t disp = SIGNEXT8(ir&0xFF)<<1; |
nkeynes@359 | 1827 | CHECKSLOTILLEGAL(); |
nkeynes@359 | 1828 | if( sh4r.t ) { |
nkeynes@359 | 1829 | CHECKDEST( sh4r.pc + disp + 4 ) |
nkeynes@2 | 1830 | sh4r.in_delay_slot = 1; |
nkeynes@1 | 1831 | sh4r.pc = sh4r.new_pc; |
nkeynes@359 | 1832 | sh4r.new_pc = pc + disp + 4; |
nkeynes@359 | 1833 | sh4r.in_delay_slot = 1; |
nkeynes@27 | 1834 | return TRUE; |
nkeynes@359 | 1835 | } |
nkeynes@359 | 1836 | } |
nkeynes@359 | 1837 | break; |
nkeynes@359 | 1838 | case 0xF: |
nkeynes@359 | 1839 | { /* BF/S disp */ |
nkeynes@359 | 1840 | int32_t disp = SIGNEXT8(ir&0xFF)<<1; |
nkeynes@359 | 1841 | CHECKSLOTILLEGAL(); |
nkeynes@359 | 1842 | if( !sh4r.t ) { |
nkeynes@359 | 1843 | CHECKDEST( sh4r.pc + disp + 4 ) |
nkeynes@2 | 1844 | sh4r.in_delay_slot = 1; |
nkeynes@1 | 1845 | sh4r.pc = sh4r.new_pc; |
nkeynes@359 | 1846 | sh4r.new_pc = pc + disp + 4; |
nkeynes@27 | 1847 | return TRUE; |
nkeynes@359 | 1848 | } |
nkeynes@359 | 1849 | } |
nkeynes@359 | 1850 | break; |
nkeynes@359 | 1851 | default: |
nkeynes@359 | 1852 | UNDEF(); |
nkeynes@359 | 1853 | break; |
nkeynes@359 | 1854 | } |
nkeynes@359 | 1855 | break; |
nkeynes@359 | 1856 | case 0x9: |
nkeynes@359 | 1857 | { /* MOV.W @(disp, PC), Rn */ |
nkeynes@359 | 1858 | uint32_t Rn = ((ir>>8)&0xF); uint32_t disp = (ir&0xFF)<<1; |
nkeynes@359 | 1859 | CHECKSLOTILLEGAL(); |
nkeynes@359 | 1860 | tmp = pc + 4 + disp; |
nkeynes@359 | 1861 | sh4r.r[Rn] = MEM_READ_WORD( tmp ); |
nkeynes@359 | 1862 | } |
nkeynes@359 | 1863 | break; |
nkeynes@359 | 1864 | case 0xA: |
nkeynes@359 | 1865 | { /* BRA disp */ |
nkeynes@359 | 1866 | int32_t disp = SIGNEXT12(ir&0xFFF)<<1; |
nkeynes@359 | 1867 | CHECKSLOTILLEGAL(); |
nkeynes@359 | 1868 | CHECKDEST( sh4r.pc + disp + 4 ); |
nkeynes@359 | 1869 | sh4r.in_delay_slot = 1; |
nkeynes@359 | 1870 | sh4r.pc = sh4r.new_pc; |
nkeynes@359 | 1871 | sh4r.new_pc = pc + 4 + disp; |
nkeynes@359 | 1872 | return TRUE; |
nkeynes@359 | 1873 | } |
nkeynes@359 | 1874 | break; |
nkeynes@359 | 1875 | case 0xB: |
nkeynes@359 | 1876 | { /* BSR disp */ |
nkeynes@359 | 1877 | int32_t disp = SIGNEXT12(ir&0xFFF)<<1; |
nkeynes@359 | 1878 | CHECKDEST( sh4r.pc + disp + 4 ); |
nkeynes@359 | 1879 | CHECKSLOTILLEGAL(); |
nkeynes@359 | 1880 | sh4r.in_delay_slot = 1; |
nkeynes@359 | 1881 | sh4r.pr = pc + 4; |
nkeynes@359 | 1882 | sh4r.pc = sh4r.new_pc; |
nkeynes@359 | 1883 | sh4r.new_pc = pc + 4 + disp; |
nkeynes@359 | 1884 | TRACE_CALL( pc, sh4r.new_pc ); |
nkeynes@359 | 1885 | return TRUE; |
nkeynes@359 | 1886 | } |
nkeynes@359 | 1887 | break; |
nkeynes@359 | 1888 | case 0xC: |
nkeynes@359 | 1889 | switch( (ir&0xF00) >> 8 ) { |
nkeynes@359 | 1890 | case 0x0: |
nkeynes@359 | 1891 | { /* MOV.B R0, @(disp, GBR) */ |
nkeynes@359 | 1892 | uint32_t disp = (ir&0xFF); |
nkeynes@359 | 1893 | MEM_WRITE_BYTE( sh4r.gbr + disp, R0 ); |
nkeynes@359 | 1894 | } |
nkeynes@359 | 1895 | break; |
nkeynes@359 | 1896 | case 0x1: |
nkeynes@359 | 1897 | { /* MOV.W R0, @(disp, GBR) */ |
nkeynes@359 | 1898 | uint32_t disp = (ir&0xFF)<<1; |
nkeynes@359 | 1899 | tmp = sh4r.gbr + disp; |
nkeynes@359 | 1900 | CHECKWALIGN16( tmp ); |
nkeynes@359 | 1901 | MEM_WRITE_WORD( tmp, R0 ); |
nkeynes@359 | 1902 | } |
nkeynes@359 | 1903 | break; |
nkeynes@359 | 1904 | case 0x2: |
nkeynes@359 | 1905 | { /* MOV.L R0, @(disp, GBR) */ |
nkeynes@359 | 1906 | uint32_t disp = (ir&0xFF)<<2; |
nkeynes@359 | 1907 | tmp = sh4r.gbr + disp; |
nkeynes@359 | 1908 | CHECKWALIGN32( tmp ); |
nkeynes@359 | 1909 | MEM_WRITE_LONG( tmp, R0 ); |
nkeynes@359 | 1910 | } |
nkeynes@359 | 1911 | break; |
nkeynes@359 | 1912 | case 0x3: |
nkeynes@359 | 1913 | { /* TRAPA #imm */ |
nkeynes@359 | 1914 | uint32_t imm = (ir&0xFF); |
nkeynes@359 | 1915 | CHECKSLOTILLEGAL(); |
nkeynes@359 | 1916 | MMIO_WRITE( MMU, TRA, imm<<2 ); |
nkeynes@359 | 1917 | sh4r.pc += 2; |
nkeynes@359 | 1918 | sh4_raise_exception( EXC_TRAP ); |
nkeynes@359 | 1919 | } |
nkeynes@359 | 1920 | break; |
nkeynes@359 | 1921 | case 0x4: |
nkeynes@359 | 1922 | { /* MOV.B @(disp, GBR), R0 */ |
nkeynes@359 | 1923 | uint32_t disp = (ir&0xFF); |
nkeynes@359 | 1924 | R0 = MEM_READ_BYTE( sh4r.gbr + disp ); |
nkeynes@359 | 1925 | } |
nkeynes@359 | 1926 | break; |
nkeynes@359 | 1927 | case 0x5: |
nkeynes@359 | 1928 | { /* MOV.W @(disp, GBR), R0 */ |
nkeynes@359 | 1929 | uint32_t disp = (ir&0xFF)<<1; |
nkeynes@359 | 1930 | tmp = sh4r.gbr + disp; |
nkeynes@359 | 1931 | CHECKRALIGN16( tmp ); |
nkeynes@359 | 1932 | R0 = MEM_READ_WORD( tmp ); |
nkeynes@359 | 1933 | } |
nkeynes@359 | 1934 | break; |
nkeynes@359 | 1935 | case 0x6: |
nkeynes@359 | 1936 | { /* MOV.L @(disp, GBR), R0 */ |
nkeynes@359 | 1937 | uint32_t disp = (ir&0xFF)<<2; |
nkeynes@359 | 1938 | tmp = sh4r.gbr + disp; |
nkeynes@359 | 1939 | CHECKRALIGN32( tmp ); |
nkeynes@359 | 1940 | R0 = MEM_READ_LONG( tmp ); |
nkeynes@359 | 1941 | } |
nkeynes@359 | 1942 | break; |
nkeynes@359 | 1943 | case 0x7: |
nkeynes@359 | 1944 | { /* MOVA @(disp, PC), R0 */ |
nkeynes@359 | 1945 | uint32_t disp = (ir&0xFF)<<2; |
nkeynes@359 | 1946 | CHECKSLOTILLEGAL(); |
nkeynes@359 | 1947 | R0 = (pc&0xFFFFFFFC) + disp + 4; |
nkeynes@359 | 1948 | } |
nkeynes@359 | 1949 | break; |
nkeynes@359 | 1950 | case 0x8: |
nkeynes@359 | 1951 | { /* TST #imm, R0 */ |
nkeynes@359 | 1952 | uint32_t imm = (ir&0xFF); |
nkeynes@359 | 1953 | sh4r.t = (R0 & imm ? 0 : 1); |
nkeynes@359 | 1954 | } |
nkeynes@359 | 1955 | break; |
nkeynes@359 | 1956 | case 0x9: |
nkeynes@359 | 1957 | { /* AND #imm, R0 */ |
nkeynes@359 | 1958 | uint32_t imm = (ir&0xFF); |
nkeynes@359 | 1959 | R0 &= imm; |
nkeynes@359 | 1960 | } |
nkeynes@359 | 1961 | break; |
nkeynes@359 | 1962 | case 0xA: |
nkeynes@359 | 1963 | { /* XOR #imm, R0 */ |
nkeynes@359 | 1964 | uint32_t imm = (ir&0xFF); |
nkeynes@359 | 1965 | R0 ^= imm; |
nkeynes@359 | 1966 | } |
nkeynes@359 | 1967 | break; |
nkeynes@359 | 1968 | case 0xB: |
nkeynes@359 | 1969 | { /* OR #imm, R0 */ |
nkeynes@359 | 1970 | uint32_t imm = (ir&0xFF); |
nkeynes@359 | 1971 | R0 |= imm; |
nkeynes@359 | 1972 | } |
nkeynes@359 | 1973 | break; |
nkeynes@359 | 1974 | case 0xC: |
nkeynes@359 | 1975 | { /* TST.B #imm, @(R0, GBR) */ |
nkeynes@359 | 1976 | uint32_t imm = (ir&0xFF); |
nkeynes@359 | 1977 | sh4r.t = ( MEM_READ_BYTE(R0 + sh4r.gbr) & imm ? 0 : 1 ); |
nkeynes@359 | 1978 | } |
nkeynes@359 | 1979 | break; |
nkeynes@359 | 1980 | case 0xD: |
nkeynes@359 | 1981 | { /* AND.B #imm, @(R0, GBR) */ |
nkeynes@359 | 1982 | uint32_t imm = (ir&0xFF); |
nkeynes@359 | 1983 | MEM_WRITE_BYTE( R0 + sh4r.gbr, imm & MEM_READ_BYTE(R0 + sh4r.gbr) ); |
nkeynes@359 | 1984 | } |
nkeynes@359 | 1985 | break; |
nkeynes@359 | 1986 | case 0xE: |
nkeynes@359 | 1987 | { /* XOR.B #imm, @(R0, GBR) */ |
nkeynes@359 | 1988 | uint32_t imm = (ir&0xFF); |
nkeynes@359 | 1989 | MEM_WRITE_BYTE( R0 + sh4r.gbr, imm ^ MEM_READ_BYTE(R0 + sh4r.gbr) ); |
nkeynes@359 | 1990 | } |
nkeynes@359 | 1991 | break; |
nkeynes@359 | 1992 | case 0xF: |
nkeynes@359 | 1993 | { /* OR.B #imm, @(R0, GBR) */ |
nkeynes@359 | 1994 | uint32_t imm = (ir&0xFF); |
nkeynes@359 | 1995 | MEM_WRITE_BYTE( R0 + sh4r.gbr, imm | MEM_READ_BYTE(R0 + sh4r.gbr) ); |
nkeynes@359 | 1996 | } |
nkeynes@359 | 1997 | break; |
nkeynes@359 | 1998 | } |
nkeynes@359 | 1999 | break; |
nkeynes@359 | 2000 | case 0xD: |
nkeynes@359 | 2001 | { /* MOV.L @(disp, PC), Rn */ |
nkeynes@359 | 2002 | uint32_t Rn = ((ir>>8)&0xF); uint32_t disp = (ir&0xFF)<<2; |
nkeynes@359 | 2003 | CHECKSLOTILLEGAL(); |
nkeynes@359 | 2004 | tmp = (pc&0xFFFFFFFC) + disp + 4; |
nkeynes@359 | 2005 | sh4r.r[Rn] = MEM_READ_LONG( tmp ); |
nkeynes@359 | 2006 | } |
nkeynes@359 | 2007 | break; |
nkeynes@359 | 2008 | case 0xE: |
nkeynes@359 | 2009 | { /* MOV #imm, Rn */ |
nkeynes@359 | 2010 | uint32_t Rn = ((ir>>8)&0xF); int32_t imm = SIGNEXT8(ir&0xFF); |
nkeynes@359 | 2011 | sh4r.r[Rn] = imm; |
nkeynes@359 | 2012 | } |
nkeynes@359 | 2013 | break; |
nkeynes@359 | 2014 | case 0xF: |
nkeynes@359 | 2015 | switch( ir&0xF ) { |
nkeynes@359 | 2016 | case 0x0: |
nkeynes@359 | 2017 | { /* FADD FRm, FRn */ |
nkeynes@359 | 2018 | uint32_t FRn = ((ir>>8)&0xF); uint32_t FRm = ((ir>>4)&0xF); |
nkeynes@359 | 2019 | CHECKFPUEN(); |
nkeynes@359 | 2020 | if( IS_FPU_DOUBLEPREC() ) { |
nkeynes@359 | 2021 | DR(FRn) += DR(FRm); |
nkeynes@359 | 2022 | } else { |
nkeynes@359 | 2023 | FR(FRn) += FR(FRm); |
nkeynes@359 | 2024 | } |
nkeynes@359 | 2025 | } |
nkeynes@359 | 2026 | break; |
nkeynes@359 | 2027 | case 0x1: |
nkeynes@359 | 2028 | { /* FSUB FRm, FRn */ |
nkeynes@359 | 2029 | uint32_t FRn = ((ir>>8)&0xF); uint32_t FRm = ((ir>>4)&0xF); |
nkeynes@359 | 2030 | CHECKFPUEN(); |
nkeynes@359 | 2031 | if( IS_FPU_DOUBLEPREC() ) { |
nkeynes@359 | 2032 | DR(FRn) -= DR(FRm); |
nkeynes@359 | 2033 | } else { |
nkeynes@359 | 2034 | FR(FRn) -= FR(FRm); |
nkeynes@359 | 2035 | } |
nkeynes@359 | 2036 | } |
nkeynes@359 | 2037 | break; |
nkeynes@359 | 2038 | case 0x2: |
nkeynes@359 | 2039 | { /* FMUL FRm, FRn */ |
nkeynes@359 | 2040 | uint32_t FRn = ((ir>>8)&0xF); uint32_t FRm = ((ir>>4)&0xF); |
nkeynes@359 | 2041 | CHECKFPUEN(); |
nkeynes@359 | 2042 | if( IS_FPU_DOUBLEPREC() ) { |
nkeynes@359 | 2043 | DR(FRn) *= DR(FRm); |
nkeynes@359 | 2044 | } else { |
nkeynes@359 | 2045 | FR(FRn) *= FR(FRm); |
nkeynes@359 | 2046 | } |
nkeynes@359 | 2047 | } |
nkeynes@359 | 2048 | break; |
nkeynes@359 | 2049 | case 0x3: |
nkeynes@359 | 2050 | { /* FDIV FRm, FRn */ |
nkeynes@359 | 2051 | uint32_t FRn = ((ir>>8)&0xF); uint32_t FRm = ((ir>>4)&0xF); |
nkeynes@359 | 2052 | CHECKFPUEN(); |
nkeynes@359 | 2053 | if( IS_FPU_DOUBLEPREC() ) { |
nkeynes@359 | 2054 | DR(FRn) /= DR(FRm); |
nkeynes@359 | 2055 | } else { |
nkeynes@359 | 2056 | FR(FRn) /= FR(FRm); |
nkeynes@359 | 2057 | } |
nkeynes@359 | 2058 | } |
nkeynes@359 | 2059 | break; |
nkeynes@359 | 2060 | case 0x4: |
nkeynes@359 | 2061 | { /* FCMP/EQ FRm, FRn */ |
nkeynes@359 | 2062 | uint32_t FRn = ((ir>>8)&0xF); uint32_t FRm = ((ir>>4)&0xF); |
nkeynes@359 | 2063 | CHECKFPUEN(); |
nkeynes@359 | 2064 | if( IS_FPU_DOUBLEPREC() ) { |
nkeynes@359 | 2065 | sh4r.t = ( DR(FRn) == DR(FRm) ? 1 : 0 ); |
nkeynes@359 | 2066 | } else { |
nkeynes@359 | 2067 | sh4r.t = ( FR(FRn) == FR(FRm) ? 1 : 0 ); |
nkeynes@359 | 2068 | } |
nkeynes@359 | 2069 | } |
nkeynes@359 | 2070 | break; |
nkeynes@359 | 2071 | case 0x5: |
nkeynes@359 | 2072 | { /* FCMP/GT FRm, FRn */ |
nkeynes@359 | 2073 | uint32_t FRn = ((ir>>8)&0xF); uint32_t FRm = ((ir>>4)&0xF); |
nkeynes@359 | 2074 | CHECKFPUEN(); |
nkeynes@359 | 2075 | if( IS_FPU_DOUBLEPREC() ) { |
nkeynes@359 | 2076 | sh4r.t = ( DR(FRn) > DR(FRm) ? 1 : 0 ); |
nkeynes@359 | 2077 | } else { |
nkeynes@359 | 2078 | sh4r.t = ( FR(FRn) > FR(FRm) ? 1 : 0 ); |
nkeynes@359 | 2079 | } |
nkeynes@359 | 2080 | } |
nkeynes@359 | 2081 | break; |
nkeynes@359 | 2082 | case 0x6: |
nkeynes@359 | 2083 | { /* FMOV @(R0, Rm), FRn */ |
nkeynes@359 | 2084 | uint32_t FRn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 2085 | MEM_FP_READ( sh4r.r[Rm] + R0, FRn ); |
nkeynes@359 | 2086 | } |
nkeynes@359 | 2087 | break; |
nkeynes@359 | 2088 | case 0x7: |
nkeynes@359 | 2089 | { /* FMOV FRm, @(R0, Rn) */ |
nkeynes@359 | 2090 | uint32_t Rn = ((ir>>8)&0xF); uint32_t FRm = ((ir>>4)&0xF); |
nkeynes@359 | 2091 | MEM_FP_WRITE( sh4r.r[Rn] + R0, FRm ); |
nkeynes@359 | 2092 | } |
nkeynes@359 | 2093 | break; |
nkeynes@359 | 2094 | case 0x8: |
nkeynes@359 | 2095 | { /* FMOV @Rm, FRn */ |
nkeynes@359 | 2096 | uint32_t FRn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 2097 | MEM_FP_READ( sh4r.r[Rm], FRn ); |
nkeynes@359 | 2098 | } |
nkeynes@359 | 2099 | break; |
nkeynes@359 | 2100 | case 0x9: |
nkeynes@359 | 2101 | { /* FMOV @Rm+, FRn */ |
nkeynes@359 | 2102 | uint32_t FRn = ((ir>>8)&0xF); uint32_t Rm = ((ir>>4)&0xF); |
nkeynes@359 | 2103 | MEM_FP_READ( sh4r.r[Rm], FRn ); sh4r.r[Rm] += FP_WIDTH; |
nkeynes@359 | 2104 | } |
nkeynes@359 | 2105 | break; |
nkeynes@359 | 2106 | case 0xA: |
nkeynes@359 | 2107 | { /* FMOV FRm, @Rn */ |
nkeynes@359 | 2108 | uint32_t Rn = ((ir>>8)&0xF); uint32_t FRm = ((ir>>4)&0xF); |
nkeynes@359 | 2109 | MEM_FP_WRITE( sh4r.r[Rn], FRm ); |
nkeynes@359 | 2110 | } |
nkeynes@359 | 2111 | break; |
nkeynes@359 | 2112 | case 0xB: |
nkeynes@359 | 2113 | { /* FMOV FRm, @-Rn */ |
nkeynes@359 | 2114 | uint32_t Rn = ((ir>>8)&0xF); uint32_t FRm = ((ir>>4)&0xF); |
nkeynes@359 | 2115 | sh4r.r[Rn] -= FP_WIDTH; MEM_FP_WRITE( sh4r.r[Rn], FRm ); |
nkeynes@359 | 2116 | } |
nkeynes@359 | 2117 | break; |
nkeynes@359 | 2118 | case 0xC: |
nkeynes@359 | 2119 | { /* FMOV FRm, FRn */ |
nkeynes@359 | 2120 | uint32_t FRn = ((ir>>8)&0xF); uint32_t FRm = ((ir>>4)&0xF); |
nkeynes@359 | 2121 | if( IS_FPU_DOUBLESIZE() ) |
nkeynes@359 | 2122 | DR(FRn) = DR(FRm); |
nkeynes@359 | 2123 | else |
nkeynes@359 | 2124 | FR(FRn) = FR(FRm); |
nkeynes@359 | 2125 | } |
nkeynes@359 | 2126 | break; |
nkeynes@359 | 2127 | case 0xD: |
nkeynes@359 | 2128 | switch( (ir&0xF0) >> 4 ) { |
nkeynes@359 | 2129 | case 0x0: |
nkeynes@359 | 2130 | { /* FSTS FPUL, FRn */ |
nkeynes@359 | 2131 | uint32_t FRn = ((ir>>8)&0xF); |
nkeynes@359 | 2132 | CHECKFPUEN(); FR(FRn) = FPULf; |
nkeynes@359 | 2133 | } |
nkeynes@359 | 2134 | break; |
nkeynes@359 | 2135 | case 0x1: |
nkeynes@359 | 2136 | { /* FLDS FRm, FPUL */ |
nkeynes@359 | 2137 | uint32_t FRm = ((ir>>8)&0xF); |
nkeynes@359 | 2138 | CHECKFPUEN(); FPULf = FR(FRm); |
nkeynes@359 | 2139 | } |
nkeynes@359 | 2140 | break; |
nkeynes@359 | 2141 | case 0x2: |
nkeynes@359 | 2142 | { /* FLOAT FPUL, FRn */ |
nkeynes@359 | 2143 | uint32_t FRn = ((ir>>8)&0xF); |
nkeynes@359 | 2144 | CHECKFPUEN(); |
nkeynes@359 | 2145 | if( IS_FPU_DOUBLEPREC() ) |
nkeynes@359 | 2146 | DR(FRn) = (float)FPULi; |
nkeynes@359 | 2147 | else |
nkeynes@359 | 2148 | FR(FRn) = (float)FPULi; |
nkeynes@359 | 2149 | } |
nkeynes@359 | 2150 | break; |
nkeynes@359 | 2151 | case 0x3: |
nkeynes@359 | 2152 | { /* FTRC FRm, FPUL */ |
nkeynes@359 | 2153 | uint32_t FRm = ((ir>>8)&0xF); |
nkeynes@359 | 2154 | CHECKFPUEN(); |
nkeynes@359 | 2155 | if( IS_FPU_DOUBLEPREC() ) { |
nkeynes@359 | 2156 | dtmp = DR(FRm); |
nkeynes@359 | 2157 | if( dtmp >= MAX_INTF ) |
nkeynes@359 | 2158 | FPULi = MAX_INT; |
nkeynes@359 | 2159 | else if( dtmp <= MIN_INTF ) |
nkeynes@359 | 2160 | FPULi = MIN_INT; |
nkeynes@359 | 2161 | else |
nkeynes@359 | 2162 | FPULi = (int32_t)dtmp; |
nkeynes@359 | 2163 | } else { |
nkeynes@359 | 2164 | ftmp = FR(FRm); |
nkeynes@359 | 2165 | if( ftmp >= MAX_INTF ) |
nkeynes@359 | 2166 | FPULi = MAX_INT; |
nkeynes@359 | 2167 | else if( ftmp <= MIN_INTF ) |
nkeynes@359 | 2168 | FPULi = MIN_INT; |
nkeynes@359 | 2169 | else |
nkeynes@359 | 2170 | FPULi = (int32_t)ftmp; |
nkeynes@359 | 2171 | } |
nkeynes@359 | 2172 | } |
nkeynes@359 | 2173 | break; |
nkeynes@359 | 2174 | case 0x4: |
nkeynes@359 | 2175 | { /* FNEG FRn */ |
nkeynes@359 | 2176 | uint32_t FRn = ((ir>>8)&0xF); |
nkeynes@359 | 2177 | CHECKFPUEN(); |
nkeynes@359 | 2178 | if( IS_FPU_DOUBLEPREC() ) { |
nkeynes@359 | 2179 | DR(FRn) = -DR(FRn); |
nkeynes@359 | 2180 | } else { |
nkeynes@359 | 2181 | FR(FRn) = -FR(FRn); |
nkeynes@359 | 2182 | } |
nkeynes@359 | 2183 | } |
nkeynes@359 | 2184 | break; |
nkeynes@359 | 2185 | case 0x5: |
nkeynes@359 | 2186 | { /* FABS FRn */ |
nkeynes@359 | 2187 | uint32_t FRn = ((ir>>8)&0xF); |
nkeynes@359 | 2188 | CHECKFPUEN(); |
nkeynes@359 | 2189 | if( IS_FPU_DOUBLEPREC() ) { |
nkeynes@359 | 2190 | DR(FRn) = fabs(DR(FRn)); |
nkeynes@359 | 2191 | } else { |
nkeynes@359 | 2192 | FR(FRn) = fabsf(FR(FRn)); |
nkeynes@359 | 2193 | } |
nkeynes@359 | 2194 | } |
nkeynes@359 | 2195 | break; |
nkeynes@359 | 2196 | case 0x6: |
nkeynes@359 | 2197 | { /* FSQRT FRn */ |
nkeynes@359 | 2198 | uint32_t FRn = ((ir>>8)&0xF); |
nkeynes@359 | 2199 | CHECKFPUEN(); |
nkeynes@359 | 2200 | if( IS_FPU_DOUBLEPREC() ) { |
nkeynes@359 | 2201 | DR(FRn) = sqrt(DR(FRn)); |
nkeynes@359 | 2202 | } else { |
nkeynes@359 | 2203 | FR(FRn) = sqrtf(FR(FRn)); |
nkeynes@359 | 2204 | } |
nkeynes@359 | 2205 | } |
nkeynes@359 | 2206 | break; |
nkeynes@359 | 2207 | case 0x7: |
nkeynes@359 | 2208 | { /* FSRRA FRn */ |
nkeynes@359 | 2209 | uint32_t FRn = ((ir>>8)&0xF); |
nkeynes@359 | 2210 | CHECKFPUEN(); |
nkeynes@359 | 2211 | if( !IS_FPU_DOUBLEPREC() ) { |
nkeynes@359 | 2212 | FR(FRn) = 1.0/sqrtf(FR(FRn)); |
nkeynes@359 | 2213 | } |
nkeynes@359 | 2214 | } |
nkeynes@359 | 2215 | break; |
nkeynes@359 | 2216 | case 0x8: |
nkeynes@359 | 2217 | { /* FLDI0 FRn */ |
nkeynes@359 | 2218 | uint32_t FRn = ((ir>>8)&0xF); |
nkeynes@359 | 2219 | CHECKFPUEN(); |
nkeynes@359 | 2220 | if( IS_FPU_DOUBLEPREC() ) { |
nkeynes@359 | 2221 | DR(FRn) = 0.0; |
nkeynes@359 | 2222 | } else { |
nkeynes@359 | 2223 | FR(FRn) = 0.0; |
nkeynes@359 | 2224 | } |
nkeynes@359 | 2225 | } |
nkeynes@359 | 2226 | break; |
nkeynes@359 | 2227 | case 0x9: |
nkeynes@359 | 2228 | { /* FLDI1 FRn */ |
nkeynes@359 | 2229 | uint32_t FRn = ((ir>>8)&0xF); |
nkeynes@359 | 2230 | CHECKFPUEN(); |
nkeynes@359 | 2231 | if( IS_FPU_DOUBLEPREC() ) { |
nkeynes@359 | 2232 | DR(FRn) = 1.0; |
nkeynes@359 | 2233 | } else { |
nkeynes@359 | 2234 | FR(FRn) = 1.0; |
nkeynes@359 | 2235 | } |
nkeynes@359 | 2236 | } |
nkeynes@359 | 2237 | break; |
nkeynes@359 | 2238 | case 0xA: |
nkeynes@359 | 2239 | { /* FCNVSD FPUL, FRn */ |
nkeynes@359 | 2240 | uint32_t FRn = ((ir>>8)&0xF); |
nkeynes@359 | 2241 | CHECKFPUEN(); |
nkeynes@359 | 2242 | if( IS_FPU_DOUBLEPREC() && !IS_FPU_DOUBLESIZE() ) { |
nkeynes@359 | 2243 | DR(FRn) = (double)FPULf; |
nkeynes@359 | 2244 | } |
nkeynes@359 | 2245 | } |
nkeynes@359 | 2246 | break; |
nkeynes@359 | 2247 | case 0xB: |
nkeynes@359 | 2248 | { /* FCNVDS FRm, FPUL */ |
nkeynes@359 | 2249 | uint32_t FRm = ((ir>>8)&0xF); |
nkeynes@359 | 2250 | CHECKFPUEN(); |
nkeynes@359 | 2251 | if( IS_FPU_DOUBLEPREC() && !IS_FPU_DOUBLESIZE() ) { |
nkeynes@359 | 2252 | FPULf = (float)DR(FRm); |
nkeynes@359 | 2253 | } |
nkeynes@359 | 2254 | } |
nkeynes@359 | 2255 | break; |
nkeynes@359 | 2256 | case 0xE: |
nkeynes@359 | 2257 | { /* FIPR FVm, FVn */ |
nkeynes@359 | 2258 | uint32_t FVn = ((ir>>10)&0x3); uint32_t FVm = ((ir>>8)&0x3); |
nkeynes@359 | 2259 | CHECKFPUEN(); |
nkeynes@359 | 2260 | if( !IS_FPU_DOUBLEPREC() ) { |
nkeynes@359 | 2261 | int tmp2 = FVn<<2; |
nkeynes@359 | 2262 | tmp = FVm<<2; |
nkeynes@359 | 2263 | FR(tmp2+3) = FR(tmp)*FR(tmp2) + |
nkeynes@359 | 2264 | FR(tmp+1)*FR(tmp2+1) + |
nkeynes@359 | 2265 | FR(tmp+2)*FR(tmp2+2) + |
nkeynes@359 | 2266 | FR(tmp+3)*FR(tmp2+3); |
nkeynes@359 | 2267 | } |
nkeynes@359 | 2268 | } |
nkeynes@359 | 2269 | break; |
nkeynes@359 | 2270 | case 0xF: |
nkeynes@359 | 2271 | switch( (ir&0x100) >> 8 ) { |
nkeynes@359 | 2272 | case 0x0: |
nkeynes@359 | 2273 | { /* FSCA FPUL, FRn */ |
nkeynes@359 | 2274 | uint32_t FRn = ((ir>>9)&0x7)<<1; |
nkeynes@359 | 2275 | CHECKFPUEN(); |
nkeynes@359 | 2276 | if( !IS_FPU_DOUBLEPREC() ) { |
nkeynes@359 | 2277 | float angle = (((float)(FPULi&0xFFFF))/65536.0) * 2 * M_PI; |
nkeynes@359 | 2278 | FR(FRn) = sinf(angle); |
nkeynes@359 | 2279 | FR((FRn)+1) = cosf(angle); |
nkeynes@359 | 2280 | } |
nkeynes@359 | 2281 | } |
nkeynes@359 | 2282 | break; |
nkeynes@359 | 2283 | case 0x1: |
nkeynes@359 | 2284 | switch( (ir&0x200) >> 9 ) { |
nkeynes@359 | 2285 | case 0x0: |
nkeynes@359 | 2286 | { /* FTRV XMTRX, FVn */ |
nkeynes@359 | 2287 | uint32_t FVn = ((ir>>10)&0x3); |
nkeynes@359 | 2288 | CHECKFPUEN(); |
nkeynes@359 | 2289 | if( !IS_FPU_DOUBLEPREC() ) { |
nkeynes@359 | 2290 | tmp = FVn<<2; |
nkeynes@359 | 2291 | float fv[4] = { FR(tmp), FR(tmp+1), FR(tmp+2), FR(tmp+3) }; |
nkeynes@359 | 2292 | FR(tmp) = XF(0) * fv[0] + XF(4)*fv[1] + |
nkeynes@359 | 2293 | XF(8)*fv[2] + XF(12)*fv[3]; |
nkeynes@359 | 2294 | FR(tmp+1) = XF(1) * fv[0] + XF(5)*fv[1] + |
nkeynes@359 | 2295 | XF(9)*fv[2] + XF(13)*fv[3]; |
nkeynes@359 | 2296 | FR(tmp+2) = XF(2) * fv[0] + XF(6)*fv[1] + |
nkeynes@359 | 2297 | XF(10)*fv[2] + XF(14)*fv[3]; |
nkeynes@359 | 2298 | FR(tmp+3) = XF(3) * fv[0] + XF(7)*fv[1] + |
nkeynes@359 | 2299 | XF(11)*fv[2] + XF(15)*fv[3]; |
nkeynes@359 | 2300 | } |
nkeynes@359 | 2301 | } |
nkeynes@359 | 2302 | break; |
nkeynes@359 | 2303 | case 0x1: |
nkeynes@359 | 2304 | switch( (ir&0xC00) >> 10 ) { |
nkeynes@359 | 2305 | case 0x0: |
nkeynes@359 | 2306 | { /* FSCHG */ |
nkeynes@359 | 2307 | CHECKFPUEN(); sh4r.fpscr ^= FPSCR_SZ; |
nkeynes@359 | 2308 | } |
nkeynes@359 | 2309 | break; |
nkeynes@359 | 2310 | case 0x2: |
nkeynes@359 | 2311 | { /* FRCHG */ |
nkeynes@359 | 2312 | CHECKFPUEN(); sh4r.fpscr ^= FPSCR_FR; |
nkeynes@359 | 2313 | } |
nkeynes@359 | 2314 | break; |
nkeynes@359 | 2315 | case 0x3: |
nkeynes@359 | 2316 | { /* UNDEF */ |
nkeynes@359 | 2317 | UNDEF(ir); |
nkeynes@359 | 2318 | } |
nkeynes@359 | 2319 | break; |
nkeynes@359 | 2320 | default: |
nkeynes@359 | 2321 | UNDEF(); |
nkeynes@359 | 2322 | break; |
nkeynes@359 | 2323 | } |
nkeynes@359 | 2324 | break; |
nkeynes@359 | 2325 | } |
nkeynes@359 | 2326 | break; |
nkeynes@359 | 2327 | } |
nkeynes@359 | 2328 | break; |
nkeynes@359 | 2329 | default: |
nkeynes@359 | 2330 | UNDEF(); |
nkeynes@359 | 2331 | break; |
nkeynes@359 | 2332 | } |
nkeynes@359 | 2333 | break; |
nkeynes@359 | 2334 | case 0xE: |
nkeynes@359 | 2335 | { /* FMAC FR0, FRm, FRn */ |
nkeynes@359 | 2336 | uint32_t FRn = ((ir>>8)&0xF); uint32_t FRm = ((ir>>4)&0xF); |
nkeynes@359 | 2337 | CHECKFPUEN(); |
nkeynes@359 | 2338 | if( IS_FPU_DOUBLEPREC() ) { |
nkeynes@359 | 2339 | DR(FRn) += DR(FRm)*DR(0); |
nkeynes@359 | 2340 | } else { |
nkeynes@359 | 2341 | FR(FRn) += FR(FRm)*FR(0); |
nkeynes@359 | 2342 | } |
nkeynes@359 | 2343 | } |
nkeynes@359 | 2344 | break; |
nkeynes@359 | 2345 | default: |
nkeynes@359 | 2346 | UNDEF(); |
nkeynes@359 | 2347 | break; |
nkeynes@359 | 2348 | } |
nkeynes@359 | 2349 | break; |
nkeynes@359 | 2350 | } |
nkeynes@1 | 2351 | |
nkeynes@1 | 2352 | sh4r.pc = sh4r.new_pc; |
nkeynes@1 | 2353 | sh4r.new_pc += 2; |
nkeynes@2 | 2354 | sh4r.in_delay_slot = 0; |
nkeynes@273 | 2355 | return TRUE; |
nkeynes@1 | 2356 | } |
.