lxdream 0.9.1| filename | src/sh4/sh4core.h |
| changeset | 374:8f80a795513e |
| prev | 369:4b4223e7d720 |
| next | 378:f10fbdd4e24b |
| author | nkeynes |
| date | Tue Sep 11 02:14:46 2007 +0000 (15 years ago) |
| permissions | -rw-r--r-- |
| last change | Cache the pointer to the last FR bank (speeds fp ops up by about 10%) Implement experimental fix for FLOAT/FTRC Make read/write sr functions non-static (share with translator) Much more translator WIP |
| file | annotate | diff | log | raw |
1.1 --- a/src/sh4/sh4core.h Sat Sep 08 03:12:21 2007 +00001.2 +++ b/src/sh4/sh4core.h Tue Sep 11 02:14:46 2007 +00001.3 @@ -1,5 +1,5 @@1.4 /**1.5 - * $Id: sh4core.h,v 1.21 2007-09-08 03:12:21 nkeynes Exp $1.6 + * $Id: sh4core.h,v 1.22 2007-09-11 02:14:46 nkeynes Exp $1.7 *1.8 * This file defines the internal functions exported/used by the SH4 core,1.9 * except for disassembly functions defined in sh4dasm.h1.10 @@ -58,14 +58,15 @@1.12 struct sh4_registers {1.13 uint32_t r[16];1.14 + uint32_t sr, pr, pc, fpscr;1.15 + uint32_t t, m, q, s; /* really boolean - 0 or 1 */1.16 + int32_t fpul;1.17 + float *fr_bank;1.18 + float fr[2][16];1.19 + uint64_t mac;1.20 + uint32_t gbr, ssr, spc, sgr, dbr, vbr;1.21 +1.22 uint32_t r_bank[8]; /* hidden banked registers */1.23 - uint32_t sr, pr, pc, fpscr, t;1.24 - int32_t fpul;1.25 - uint32_t gbr, ssr, spc, sgr, dbr, vbr;1.26 - uint64_t mac;1.27 - uint32_t m, q, s; /* really boolean - 0 or 1 */1.28 - float fr[2][16];1.29 -1.30 int32_t store_queue[16]; /* technically 2 banks of 32 bytes */1.32 uint32_t new_pc; /* Not a real register, but used to handle delay slots */1.33 @@ -111,6 +112,10 @@1.34 int32_t sh4_read_phys_word( uint32_t addr );1.35 void sh4_flush_store_queue( uint32_t addr );1.37 +/* SH4 Support methods */1.38 +uint32_t sh4_read_sr(void);1.39 +void sh4_write_sr(uint32_t val);1.40 +1.41 /* Peripheral functions */1.42 void CPG_reset( void );1.43 void TMU_run_slice( uint32_t );1.44 @@ -171,8 +176,8 @@1.45 #define IS_FPU_DOUBLESIZE() (sh4r.fpscr&FPSCR_SZ)1.46 #define IS_FPU_ENABLED() ((sh4r.sr&SR_FD)==0)1.48 -#define FR(x) sh4r.fr[(sh4r.fpscr&FPSCR_FR)>>21][(x)^1]1.49 -#define DRF(x) ((double *)(sh4r.fr[(sh4r.fpscr&FPSCR_FR)>>21]))[x]1.50 +#define FR(x) sh4r.fr_bank[(x)^1]1.51 +#define DRF(x) ((double *)sh4r.fr_bank)[x]1.52 #define XF(x) sh4r.fr[((~sh4r.fpscr)&FPSCR_FR)>>21][(x)^1]1.53 #define XDR(x) ((double *)(sh4r.fr[((~sh4r.fpscr)&FPSCR_FR)>>21]))[x]1.54 #define DRb(x,b) ((double *)(sh4r.fr[((b ? (~sh4r.fpscr) : sh4r.fpscr)&FPSCR_FR)>>21]))[x]
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