filename | src/sh4/sh4mem.c |
changeset | 234:8759d0067e9d |
prev | 217:d0b3da720456 |
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author | nkeynes |
date | Wed Jan 03 09:00:17 2007 +0000 (17 years ago) |
permissions | -rw-r--r-- |
last change | Adjust timers when they're read rather than waiting until the next time slice. Also temporarily cut the CPU time by 4. Initialize the FRQCR register to 0x0E0A for convenience |
file | annotate | diff | log | raw |
nkeynes@10 | 1 | /** |
nkeynes@234 | 2 | * $Id: sh4mem.c,v 1.16 2006-12-12 09:18:47 nkeynes Exp $ |
nkeynes@10 | 3 | * sh4mem.c is responsible for the SH4's access to memory (including memory |
nkeynes@10 | 4 | * mapped I/O), using the page maps created in mem.c |
nkeynes@10 | 5 | * |
nkeynes@10 | 6 | * Copyright (c) 2005 Nathan Keynes. |
nkeynes@10 | 7 | * |
nkeynes@10 | 8 | * This program is free software; you can redistribute it and/or modify |
nkeynes@10 | 9 | * it under the terms of the GNU General Public License as published by |
nkeynes@10 | 10 | * the Free Software Foundation; either version 2 of the License, or |
nkeynes@10 | 11 | * (at your option) any later version. |
nkeynes@10 | 12 | * |
nkeynes@10 | 13 | * This program is distributed in the hope that it will be useful, |
nkeynes@10 | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
nkeynes@10 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
nkeynes@10 | 16 | * GNU General Public License for more details. |
nkeynes@10 | 17 | */ |
nkeynes@10 | 18 | |
nkeynes@35 | 19 | #define MODULE sh4_module |
nkeynes@35 | 20 | |
nkeynes@10 | 21 | #include <string.h> |
nkeynes@10 | 22 | #include <zlib.h> |
nkeynes@10 | 23 | #include "dream.h" |
nkeynes@10 | 24 | #include "mem.h" |
nkeynes@10 | 25 | #include "mmio.h" |
nkeynes@70 | 26 | #include "sh4core.h" |
nkeynes@10 | 27 | #include "sh4mmio.h" |
nkeynes@10 | 28 | #include "dreamcast.h" |
nkeynes@100 | 29 | #include "pvr2/pvr2.h" |
nkeynes@10 | 30 | |
nkeynes@10 | 31 | #define OC_BASE 0x1C000000 |
nkeynes@10 | 32 | #define OC_TOP 0x20000000 |
nkeynes@10 | 33 | |
nkeynes@90 | 34 | #define TRANSLATE_VIDEO_64BIT_ADDRESS(a) ( (((a)&0x00FFFFF8)>>1)|(((a)&0x00000004)<<20)|((a)&0x03)|0x05000000 ) |
nkeynes@10 | 35 | |
nkeynes@10 | 36 | #ifdef ENABLE_WATCH |
nkeynes@10 | 37 | #define CHECK_READ_WATCH( addr, size ) \ |
nkeynes@10 | 38 | if( mem_is_watched(addr,size,WATCH_READ) != NULL ) { \ |
nkeynes@10 | 39 | WARN( "Watch triggered at %08X by %d byte read", addr, size ); \ |
nkeynes@10 | 40 | dreamcast_stop(); \ |
nkeynes@10 | 41 | } |
nkeynes@10 | 42 | #define CHECK_WRITE_WATCH( addr, size, val ) \ |
nkeynes@10 | 43 | if( mem_is_watched(addr,size,WATCH_WRITE) != NULL ) { \ |
nkeynes@10 | 44 | WARN( "Watch triggered at %08X by %d byte write <= %0*X", addr, size, size*2, val ); \ |
nkeynes@10 | 45 | dreamcast_stop(); \ |
nkeynes@10 | 46 | } |
nkeynes@10 | 47 | #else |
nkeynes@10 | 48 | #define CHECK_READ_WATCH( addr, size ) |
nkeynes@234 | 49 | #define CHECK_WRITE_WATCH( addr, size, val ) |
nkeynes@10 | 50 | #endif |
nkeynes@10 | 51 | |
nkeynes@172 | 52 | #define TRACE_IO( str, p, r, ... ) if(io_rgn[(uint32_t)p]->trace_flag && !MMIO_NOTRACE_BYNUM((uint32_t)p,r)) \ |
nkeynes@172 | 53 | TRACE( str " [%s.%s: %s]", __VA_ARGS__, \ |
nkeynes@10 | 54 | MMIO_NAME_BYNUM((uint32_t)p), MMIO_REGID_BYNUM((uint32_t)p, r), \ |
nkeynes@10 | 55 | MMIO_REGDESC_BYNUM((uint32_t)p, r) ) |
nkeynes@172 | 56 | #define TRACE_P4IO( str, io, r, ... ) if(io->trace_flag && !MMIO_NOTRACE_IOBYNUM(io,r)) \ |
nkeynes@156 | 57 | TRACE( str " [%s.%s: %s]", __VA_ARGS__, \ |
nkeynes@156 | 58 | io->id, MMIO_REGID_IOBYNUM(io, r), \ |
nkeynes@156 | 59 | MMIO_REGDESC_IOBYNUM(io, r) ) |
nkeynes@10 | 60 | |
nkeynes@10 | 61 | extern struct mem_region mem_rgn[]; |
nkeynes@10 | 62 | extern struct mmio_region *P4_io[]; |
nkeynes@10 | 63 | |
nkeynes@10 | 64 | int32_t sh4_read_p4( uint32_t addr ) |
nkeynes@10 | 65 | { |
nkeynes@10 | 66 | struct mmio_region *io = P4_io[(addr&0x1FFFFFFF)>>19]; |
nkeynes@10 | 67 | if( !io ) { |
nkeynes@10 | 68 | ERROR( "Attempted read from unknown P4 region: %08X", addr ); |
nkeynes@10 | 69 | return 0; |
nkeynes@10 | 70 | } else { |
nkeynes@156 | 71 | int32_t val = io->io_read( addr&0xFFF ); |
nkeynes@156 | 72 | TRACE_P4IO( "Long read %08X <= %08X", io, (addr&0xFFF), val, addr ); |
nkeynes@156 | 73 | return val; |
nkeynes@10 | 74 | } |
nkeynes@10 | 75 | } |
nkeynes@10 | 76 | |
nkeynes@10 | 77 | void sh4_write_p4( uint32_t addr, int32_t val ) |
nkeynes@10 | 78 | { |
nkeynes@10 | 79 | struct mmio_region *io = P4_io[(addr&0x1FFFFFFF)>>19]; |
nkeynes@10 | 80 | if( !io ) { |
nkeynes@10 | 81 | if( (addr & 0xFC000000) == 0xE0000000 ) { |
nkeynes@10 | 82 | /* Store queue */ |
nkeynes@10 | 83 | SH4_WRITE_STORE_QUEUE( addr, val ); |
nkeynes@38 | 84 | } else if( (addr & 0xFF000000) != 0xF4000000 ) { |
nkeynes@38 | 85 | /* OC address cache isn't implemented, but don't complain about it. |
nkeynes@38 | 86 | * Complain about anything else though */ |
nkeynes@10 | 87 | ERROR( "Attempted write to unknown P4 region: %08X", addr ); |
nkeynes@10 | 88 | } |
nkeynes@10 | 89 | } else { |
nkeynes@156 | 90 | TRACE_P4IO( "Long write %08X => %08X", io, (addr&0xFFF), val, addr ); |
nkeynes@10 | 91 | io->io_write( addr&0xFFF, val ); |
nkeynes@10 | 92 | } |
nkeynes@10 | 93 | } |
nkeynes@10 | 94 | |
nkeynes@10 | 95 | int32_t sh4_read_phys_word( uint32_t addr ) |
nkeynes@10 | 96 | { |
nkeynes@10 | 97 | char *page; |
nkeynes@83 | 98 | if( addr >= 0xE0000000 ) /* P4 Area, handled specially */ |
nkeynes@10 | 99 | return SIGNEXT16(sh4_read_p4( addr )); |
nkeynes@10 | 100 | |
nkeynes@10 | 101 | if( (addr&0x1F800000) == 0x04000000 ) { |
nkeynes@10 | 102 | addr = TRANSLATE_VIDEO_64BIT_ADDRESS(addr); |
nkeynes@10 | 103 | } |
nkeynes@10 | 104 | |
nkeynes@10 | 105 | page = page_map[ (addr & 0x1FFFFFFF) >> 12 ]; |
nkeynes@10 | 106 | if( ((uint32_t)page) < MAX_IO_REGIONS ) { /* IO Region */ |
nkeynes@10 | 107 | if( page == NULL ) { |
nkeynes@10 | 108 | ERROR( "Attempted word read to missing page: %08X", |
nkeynes@10 | 109 | addr ); |
nkeynes@10 | 110 | return 0; |
nkeynes@10 | 111 | } |
nkeynes@10 | 112 | return SIGNEXT16(io_rgn[(uint32_t)page]->io_read(addr&0xFFF)); |
nkeynes@10 | 113 | } else { |
nkeynes@10 | 114 | return SIGNEXT16(*(int16_t *)(page+(addr&0xFFF))); |
nkeynes@10 | 115 | } |
nkeynes@10 | 116 | } |
nkeynes@10 | 117 | |
nkeynes@10 | 118 | int32_t sh4_read_long( uint32_t addr ) |
nkeynes@10 | 119 | { |
nkeynes@10 | 120 | char *page; |
nkeynes@10 | 121 | |
nkeynes@10 | 122 | CHECK_READ_WATCH(addr,4); |
nkeynes@10 | 123 | |
nkeynes@83 | 124 | if( addr >= 0xE0000000 ) /* P4 Area, handled specially */ |
nkeynes@10 | 125 | return sh4_read_p4( addr ); |
nkeynes@10 | 126 | |
nkeynes@10 | 127 | if( (addr&0x1F800000) == 0x04000000 ) { |
nkeynes@10 | 128 | addr = TRANSLATE_VIDEO_64BIT_ADDRESS(addr); |
nkeynes@217 | 129 | pvr2_render_invalidate(addr); |
nkeynes@217 | 130 | } else if( (addr&0x1F800000) == 0x05000000 ) { |
nkeynes@217 | 131 | pvr2_render_invalidate(addr); |
nkeynes@10 | 132 | } |
nkeynes@10 | 133 | |
nkeynes@10 | 134 | if( IS_MMU_ENABLED() ) { |
nkeynes@10 | 135 | ERROR( "user-mode & mmu translation not implemented, aborting", NULL ); |
nkeynes@10 | 136 | sh4_stop(); |
nkeynes@10 | 137 | return 0; |
nkeynes@10 | 138 | } |
nkeynes@10 | 139 | |
nkeynes@10 | 140 | page = page_map[ (addr & 0x1FFFFFFF) >> 12 ]; |
nkeynes@10 | 141 | if( ((uint32_t)page) < MAX_IO_REGIONS ) { /* IO Region */ |
nkeynes@10 | 142 | int32_t val; |
nkeynes@10 | 143 | if( page == NULL ) { |
nkeynes@10 | 144 | ERROR( "Attempted long read to missing page: %08X", addr ); |
nkeynes@10 | 145 | return 0; |
nkeynes@10 | 146 | } |
nkeynes@10 | 147 | val = io_rgn[(uint32_t)page]->io_read(addr&0xFFF); |
nkeynes@10 | 148 | TRACE_IO( "Long read %08X <= %08X", page, (addr&0xFFF), val, addr ); |
nkeynes@10 | 149 | return val; |
nkeynes@10 | 150 | } else { |
nkeynes@10 | 151 | return *(int32_t *)(page+(addr&0xFFF)); |
nkeynes@10 | 152 | } |
nkeynes@10 | 153 | } |
nkeynes@10 | 154 | |
nkeynes@10 | 155 | int32_t sh4_read_word( uint32_t addr ) |
nkeynes@10 | 156 | { |
nkeynes@10 | 157 | char *page; |
nkeynes@10 | 158 | |
nkeynes@10 | 159 | CHECK_READ_WATCH(addr,2); |
nkeynes@10 | 160 | |
nkeynes@83 | 161 | if( addr >= 0xE0000000 ) /* P4 Area, handled specially */ |
nkeynes@10 | 162 | return SIGNEXT16(sh4_read_p4( addr )); |
nkeynes@10 | 163 | |
nkeynes@10 | 164 | if( (addr&0x1F800000) == 0x04000000 ) { |
nkeynes@10 | 165 | addr = TRANSLATE_VIDEO_64BIT_ADDRESS(addr); |
nkeynes@217 | 166 | pvr2_render_invalidate(addr); |
nkeynes@217 | 167 | } else if( (addr&0x1F800000) == 0x05000000 ) { |
nkeynes@217 | 168 | pvr2_render_invalidate(addr); |
nkeynes@10 | 169 | } |
nkeynes@217 | 170 | |
nkeynes@10 | 171 | |
nkeynes@10 | 172 | if( IS_MMU_ENABLED() ) { |
nkeynes@10 | 173 | ERROR( "user-mode & mmu translation not implemented, aborting", NULL ); |
nkeynes@10 | 174 | sh4_stop(); |
nkeynes@10 | 175 | return 0; |
nkeynes@10 | 176 | } |
nkeynes@10 | 177 | |
nkeynes@10 | 178 | page = page_map[ (addr & 0x1FFFFFFF) >> 12 ]; |
nkeynes@10 | 179 | if( ((uint32_t)page) < MAX_IO_REGIONS ) { /* IO Region */ |
nkeynes@10 | 180 | int32_t val; |
nkeynes@10 | 181 | if( page == NULL ) { |
nkeynes@10 | 182 | ERROR( "Attempted word read to missing page: %08X", addr ); |
nkeynes@10 | 183 | return 0; |
nkeynes@10 | 184 | } |
nkeynes@10 | 185 | val = SIGNEXT16(io_rgn[(uint32_t)page]->io_read(addr&0xFFF)); |
nkeynes@10 | 186 | TRACE_IO( "Word read %04X <= %08X", page, (addr&0xFFF), val&0xFFFF, addr ); |
nkeynes@10 | 187 | return val; |
nkeynes@10 | 188 | } else { |
nkeynes@10 | 189 | return SIGNEXT16(*(int16_t *)(page+(addr&0xFFF))); |
nkeynes@10 | 190 | } |
nkeynes@10 | 191 | } |
nkeynes@10 | 192 | |
nkeynes@10 | 193 | int32_t sh4_read_byte( uint32_t addr ) |
nkeynes@10 | 194 | { |
nkeynes@10 | 195 | char *page; |
nkeynes@10 | 196 | |
nkeynes@10 | 197 | CHECK_READ_WATCH(addr,1); |
nkeynes@10 | 198 | |
nkeynes@83 | 199 | if( addr >= 0xE0000000 ) /* P4 Area, handled specially */ |
nkeynes@10 | 200 | return SIGNEXT8(sh4_read_p4( addr )); |
nkeynes@10 | 201 | if( (addr&0x1F800000) == 0x04000000 ) { |
nkeynes@10 | 202 | addr = TRANSLATE_VIDEO_64BIT_ADDRESS(addr); |
nkeynes@217 | 203 | pvr2_render_invalidate(addr); |
nkeynes@217 | 204 | } else if( (addr&0x1F800000) == 0x05000000 ) { |
nkeynes@217 | 205 | pvr2_render_invalidate(addr); |
nkeynes@10 | 206 | } |
nkeynes@217 | 207 | |
nkeynes@10 | 208 | |
nkeynes@10 | 209 | if( IS_MMU_ENABLED() ) { |
nkeynes@10 | 210 | ERROR( "user-mode & mmu translation not implemented, aborting", NULL ); |
nkeynes@10 | 211 | sh4_stop(); |
nkeynes@10 | 212 | return 0; |
nkeynes@10 | 213 | } |
nkeynes@10 | 214 | |
nkeynes@10 | 215 | page = page_map[ (addr & 0x1FFFFFFF) >> 12 ]; |
nkeynes@10 | 216 | if( ((uint32_t)page) < MAX_IO_REGIONS ) { /* IO Region */ |
nkeynes@10 | 217 | int32_t val; |
nkeynes@10 | 218 | if( page == NULL ) { |
nkeynes@10 | 219 | ERROR( "Attempted byte read to missing page: %08X", addr ); |
nkeynes@10 | 220 | return 0; |
nkeynes@10 | 221 | } |
nkeynes@10 | 222 | val = SIGNEXT8(io_rgn[(uint32_t)page]->io_read(addr&0xFFF)); |
nkeynes@10 | 223 | TRACE_IO( "Byte read %02X <= %08X", page, (addr&0xFFF), val&0xFF, addr ); |
nkeynes@10 | 224 | return val; |
nkeynes@10 | 225 | } else { |
nkeynes@10 | 226 | return SIGNEXT8(*(int8_t *)(page+(addr&0xFFF))); |
nkeynes@10 | 227 | } |
nkeynes@10 | 228 | } |
nkeynes@10 | 229 | |
nkeynes@10 | 230 | void sh4_write_long( uint32_t addr, uint32_t val ) |
nkeynes@10 | 231 | { |
nkeynes@10 | 232 | char *page; |
nkeynes@10 | 233 | |
nkeynes@10 | 234 | CHECK_WRITE_WATCH(addr,4,val); |
nkeynes@10 | 235 | |
nkeynes@83 | 236 | if( addr >= 0xE0000000 ) { |
nkeynes@10 | 237 | sh4_write_p4( addr, val ); |
nkeynes@10 | 238 | return; |
nkeynes@10 | 239 | } |
nkeynes@130 | 240 | if( (addr&0x1F800000) == 0x04000000 || |
nkeynes@130 | 241 | (addr&0x1F800000) == 0x11000000 ) { |
nkeynes@150 | 242 | texcache_invalidate_page(addr& 0x7FFFFF); |
nkeynes@10 | 243 | addr = TRANSLATE_VIDEO_64BIT_ADDRESS(addr); |
nkeynes@165 | 244 | pvr2_render_invalidate(addr); |
nkeynes@165 | 245 | } else if( (addr&0x1F800000) == 0x05000000 ) { |
nkeynes@165 | 246 | pvr2_render_invalidate(addr); |
nkeynes@10 | 247 | } |
nkeynes@10 | 248 | |
nkeynes@10 | 249 | if( IS_MMU_ENABLED() ) { |
nkeynes@10 | 250 | ERROR( "user-mode & mmu translation not implemented, aborting", NULL ); |
nkeynes@10 | 251 | sh4_stop(); |
nkeynes@10 | 252 | return; |
nkeynes@10 | 253 | } |
nkeynes@10 | 254 | if( (addr&0x1FFFFFFF) < 0x200000 ) { |
nkeynes@10 | 255 | ERROR( "Attempted write to read-only memory: %08X => %08X", val, addr); |
nkeynes@10 | 256 | sh4_stop(); |
nkeynes@10 | 257 | return; |
nkeynes@10 | 258 | } |
nkeynes@137 | 259 | if( (addr&0x1F800000) == 0x00800000 ) |
nkeynes@137 | 260 | asic_g2_write_word(); |
nkeynes@137 | 261 | |
nkeynes@10 | 262 | page = page_map[ (addr & 0x1FFFFFFF) >> 12 ]; |
nkeynes@10 | 263 | if( ((uint32_t)page) < MAX_IO_REGIONS ) { /* IO Region */ |
nkeynes@10 | 264 | if( page == NULL ) { |
nkeynes@137 | 265 | if( (addr & 0x1F000000) >= 0x04000000 && |
nkeynes@137 | 266 | (addr & 0x1F000000) < 0x07000000 ) |
nkeynes@137 | 267 | return; |
nkeynes@10 | 268 | ERROR( "Long write to missing page: %08X => %08X", val, addr ); |
nkeynes@10 | 269 | return; |
nkeynes@10 | 270 | } |
nkeynes@10 | 271 | TRACE_IO( "Long write %08X => %08X", page, (addr&0xFFF), val, addr ); |
nkeynes@10 | 272 | io_rgn[(uint32_t)page]->io_write(addr&0xFFF, val); |
nkeynes@10 | 273 | } else { |
nkeynes@10 | 274 | *(uint32_t *)(page+(addr&0xFFF)) = val; |
nkeynes@10 | 275 | } |
nkeynes@10 | 276 | } |
nkeynes@10 | 277 | |
nkeynes@10 | 278 | void sh4_write_word( uint32_t addr, uint32_t val ) |
nkeynes@10 | 279 | { |
nkeynes@10 | 280 | char *page; |
nkeynes@10 | 281 | |
nkeynes@10 | 282 | CHECK_WRITE_WATCH(addr,2,val); |
nkeynes@10 | 283 | |
nkeynes@83 | 284 | if( addr >= 0xE0000000 ) { |
nkeynes@10 | 285 | sh4_write_p4( addr, (int16_t)val ); |
nkeynes@10 | 286 | return; |
nkeynes@10 | 287 | } |
nkeynes@130 | 288 | if( (addr&0x1F800000) == 0x04000000 || |
nkeynes@130 | 289 | (addr&0x1F800000) == 0x11000000 ) { |
nkeynes@150 | 290 | texcache_invalidate_page(addr& 0x7FFFFF); |
nkeynes@10 | 291 | addr = TRANSLATE_VIDEO_64BIT_ADDRESS(addr); |
nkeynes@165 | 292 | pvr2_render_invalidate(addr); |
nkeynes@165 | 293 | } else if( (addr&0x1F800000) == 0x05000000 ) { |
nkeynes@165 | 294 | pvr2_render_invalidate(addr); |
nkeynes@10 | 295 | } |
nkeynes@10 | 296 | if( IS_MMU_ENABLED() ) { |
nkeynes@10 | 297 | ERROR( "user-mode & mmu translation not implemented, aborting", NULL ); |
nkeynes@10 | 298 | sh4_stop(); |
nkeynes@10 | 299 | return; |
nkeynes@10 | 300 | } |
nkeynes@10 | 301 | page = page_map[ (addr & 0x1FFFFFFF) >> 12 ]; |
nkeynes@10 | 302 | if( ((uint32_t)page) < MAX_IO_REGIONS ) { /* IO Region */ |
nkeynes@10 | 303 | if( page == NULL ) { |
nkeynes@10 | 304 | ERROR( "Attempted word write to missing page: %08X", addr ); |
nkeynes@10 | 305 | return; |
nkeynes@10 | 306 | } |
nkeynes@10 | 307 | TRACE_IO( "Word write %04X => %08X", page, (addr&0xFFF), val&0xFFFF, addr ); |
nkeynes@10 | 308 | io_rgn[(uint32_t)page]->io_write(addr&0xFFF, val); |
nkeynes@10 | 309 | } else { |
nkeynes@10 | 310 | *(uint16_t *)(page+(addr&0xFFF)) = val; |
nkeynes@10 | 311 | } |
nkeynes@10 | 312 | } |
nkeynes@10 | 313 | |
nkeynes@10 | 314 | void sh4_write_byte( uint32_t addr, uint32_t val ) |
nkeynes@10 | 315 | { |
nkeynes@10 | 316 | char *page; |
nkeynes@10 | 317 | |
nkeynes@10 | 318 | CHECK_WRITE_WATCH(addr,1,val); |
nkeynes@10 | 319 | |
nkeynes@83 | 320 | if( addr >= 0xE0000000 ) { |
nkeynes@10 | 321 | sh4_write_p4( addr, (int8_t)val ); |
nkeynes@10 | 322 | return; |
nkeynes@10 | 323 | } |
nkeynes@130 | 324 | if( (addr&0x1F800000) == 0x04000000 || |
nkeynes@130 | 325 | (addr&0x1F800000) == 0x11000000 ) { |
nkeynes@150 | 326 | texcache_invalidate_page(addr& 0x7FFFFF); |
nkeynes@10 | 327 | addr = TRANSLATE_VIDEO_64BIT_ADDRESS(addr); |
nkeynes@165 | 328 | pvr2_render_invalidate(addr); |
nkeynes@165 | 329 | } else if( (addr&0x1F800000) == 0x05000000 ) { |
nkeynes@165 | 330 | pvr2_render_invalidate(addr); |
nkeynes@10 | 331 | } |
nkeynes@10 | 332 | |
nkeynes@10 | 333 | if( IS_MMU_ENABLED() ) { |
nkeynes@10 | 334 | ERROR( "user-mode & mmu translation not implemented, aborting", NULL ); |
nkeynes@10 | 335 | sh4_stop(); |
nkeynes@10 | 336 | return; |
nkeynes@10 | 337 | } |
nkeynes@10 | 338 | page = page_map[ (addr & 0x1FFFFFFF) >> 12 ]; |
nkeynes@10 | 339 | if( ((uint32_t)page) < MAX_IO_REGIONS ) { /* IO Region */ |
nkeynes@10 | 340 | if( page == NULL ) { |
nkeynes@10 | 341 | ERROR( "Attempted byte write to missing page: %08X", addr ); |
nkeynes@10 | 342 | return; |
nkeynes@10 | 343 | } |
nkeynes@10 | 344 | TRACE_IO( "Byte write %02X => %08X", page, (addr&0xFFF), val&0xFF, addr ); |
nkeynes@10 | 345 | io_rgn[(uint32_t)page]->io_write( (addr&0xFFF), val); |
nkeynes@10 | 346 | } else { |
nkeynes@10 | 347 | *(uint8_t *)(page+(addr&0xFFF)) = val; |
nkeynes@10 | 348 | } |
nkeynes@10 | 349 | } |
nkeynes@10 | 350 | |
nkeynes@10 | 351 | |
nkeynes@10 | 352 | |
nkeynes@10 | 353 | /* FIXME: Handle all the many special cases when the range doesn't fall cleanly |
nkeynes@10 | 354 | * into the same memory black |
nkeynes@10 | 355 | */ |
nkeynes@10 | 356 | void mem_copy_from_sh4( char *dest, uint32_t srcaddr, size_t count ) { |
nkeynes@103 | 357 | if( srcaddr >= 0x04000000 && srcaddr < 0x05000000 ) { |
nkeynes@103 | 358 | pvr2_vram64_read( dest, srcaddr, count ); |
nkeynes@103 | 359 | } else { |
nkeynes@103 | 360 | char *src = mem_get_region(srcaddr); |
nkeynes@103 | 361 | if( src == NULL ) { |
nkeynes@103 | 362 | ERROR( "Attempted block read from unknown address %08X", srcaddr ); |
nkeynes@103 | 363 | } else { |
nkeynes@103 | 364 | memcpy( dest, src, count ); |
nkeynes@103 | 365 | } |
nkeynes@103 | 366 | } |
nkeynes@10 | 367 | } |
nkeynes@10 | 368 | |
nkeynes@10 | 369 | void mem_copy_to_sh4( uint32_t destaddr, char *src, size_t count ) { |
nkeynes@130 | 370 | if( destaddr >= 0x10000000 && destaddr < 0x11000000 ) { |
nkeynes@100 | 371 | pvr2_ta_write( src, count ); |
nkeynes@130 | 372 | } else if( destaddr >= 0x04000000 && destaddr < 0x05000000 || |
nkeynes@130 | 373 | destaddr >= 0x11000000 && destaddr < 0x12000000 ) { |
nkeynes@103 | 374 | pvr2_vram64_write( destaddr, src, count ); |
nkeynes@90 | 375 | } else { |
nkeynes@165 | 376 | if( (destaddr & 0x1F800000) == 0x05000000 ) |
nkeynes@165 | 377 | pvr2_render_invalidate( destaddr ); |
nkeynes@90 | 378 | char *dest = mem_get_region(destaddr); |
nkeynes@90 | 379 | if( dest == NULL ) |
nkeynes@103 | 380 | ERROR( "Attempted block write to unknown address %08X", destaddr ); |
nkeynes@103 | 381 | else { |
nkeynes@90 | 382 | memcpy( dest, src, count ); |
nkeynes@103 | 383 | } |
nkeynes@90 | 384 | } |
nkeynes@10 | 385 | } |
.