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filename src/sh4/sh4core.in
changeset 1125:9dd5dee45db9
prev1103:de9ad2c0cf56
next1187:266e7a1bae90
author nkeynes
date Mon Sep 13 10:13:42 2010 +1000 (10 years ago)
permissions -rw-r--r--
last change Implement shadow-execution 'core' to run translator + interpreter side by
side (for testing)
file annotate diff log raw 
     1.1 --- a/src/sh4/sh4core.in	Sun Feb 21 11:19:59 2010 +1000

     1.2 +++ b/src/sh4/sh4core.in	Mon Sep 13 10:13:42 2010 +1000

     1.3 @@ -178,6 +178,7 @@

     1.4  static FASTCALL __attribute__((noinline)) void *__first_arg(void *a, void *b) { return a; }

     1.5  #define INIT_EXCEPTIONS(label) goto *__first_arg(&&fnstart,&&label); fnstart:

     1.6  #define MEM_READ_BYTE( addr, val ) val = ((mem_read_exc_fn_t)ADDRSPACE[(addr)>>12]->read_byte)((addr), &&except)

     1.7 +#define MEM_READ_BYTE_FOR_WRITE( addr, val ) val = ((mem_read_exc_fn_t)ADDRSPACE[(addr)>>12]->read_byte_for_write)((addr), &&except)

     1.8  #define MEM_READ_WORD( addr, val ) val = ((mem_read_exc_fn_t)ADDRSPACE[(addr)>>12]->read_word)((addr), &&except)

     1.9  #define MEM_READ_LONG( addr, val ) val = ((mem_read_exc_fn_t)ADDRSPACE[(addr)>>12]->read_long)((addr), &&except)

    1.10  #define MEM_WRITE_BYTE( addr, val ) ((mem_write_exc_fn_t)ADDRSPACE[(addr)>>12]->write_byte)((addr), (val), &&except)

    1.11 @@ -187,6 +188,7 @@

    1.12  #else

    1.13  #define INIT_EXCEPTIONS(label)

    1.14  #define MEM_READ_BYTE( addr, val ) val = ADDRSPACE[(addr)>>12]->read_byte(addr)

    1.15 +#define MEM_READ_BYTE_FOR_WRITE( addr, val ) val = ADDRSPACE[(addr)>>12]->read_byte_for_write(addr)

    1.16  #define MEM_READ_WORD( addr, val ) val = ADDRSPACE[(addr)>>12]->read_word(addr)

    1.17  #define MEM_READ_LONG( addr, val ) val = ADDRSPACE[(addr)>>12]->read_long(addr)

    1.18  #define MEM_WRITE_BYTE( addr, val ) ADDRSPACE[(addr)>>12]->write_byte(addr, val)

    1.19 @@ -406,13 +408,13 @@

    1.20  %%

    1.21  AND Rm, Rn {: sh4r.r[Rn] &= sh4r.r[Rm]; :}

    1.22  AND #imm, R0 {: R0 &= imm; :}

    1.23 - AND.B #imm, @(R0, GBR) {: MEM_READ_BYTE(R0+sh4r.gbr, tmp); MEM_WRITE_BYTE( R0 + sh4r.gbr, imm & tmp ); :}

    1.24 + AND.B #imm, @(R0, GBR) {: MEM_READ_BYTE_FOR_WRITE(R0+sh4r.gbr, tmp); MEM_WRITE_BYTE( R0 + sh4r.gbr, imm & tmp ); :}

    1.25  NOT Rm, Rn {: sh4r.r[Rn] = ~sh4r.r[Rm]; :}

    1.26  OR Rm, Rn {: sh4r.r[Rn] |= sh4r.r[Rm]; :}

    1.27  OR #imm, R0  {: R0 |= imm; :}

    1.28 - OR.B #imm, @(R0, GBR) {: MEM_READ_BYTE(R0+sh4r.gbr, tmp); MEM_WRITE_BYTE( R0 + sh4r.gbr, imm | tmp ); :}

    1.29 + OR.B #imm, @(R0, GBR) {: MEM_READ_BYTE_FOR_WRITE(R0+sh4r.gbr, tmp); MEM_WRITE_BYTE( R0 + sh4r.gbr, imm | tmp ); :}

    1.30  TAS.B @Rn {:

    1.31 -    MEM_READ_BYTE( sh4r.r[Rn], tmp );

    1.32 +    MEM_READ_BYTE_FOR_WRITE( sh4r.r[Rn], tmp );

    1.33      sh4r.t = ( tmp == 0 ? 1 : 0 );

    1.34      MEM_WRITE_BYTE( sh4r.r[Rn], tmp | 0x80 );

    1.35  :}

    1.36 @@ -421,7 +423,7 @@

    1.37   TST.B #imm, @(R0, GBR) {: MEM_READ_BYTE(R0+sh4r.gbr, tmp); sh4r.t = ( tmp & imm ? 0 : 1 ); :}

    1.38  XOR Rm, Rn {: sh4r.r[Rn] ^= sh4r.r[Rm]; :}

    1.39  XOR #imm, R0 {: R0 ^= imm; :}

    1.40 - XOR.B #imm, @(R0, GBR) {: MEM_READ_BYTE(R0+sh4r.gbr, tmp); MEM_WRITE_BYTE( R0 + sh4r.gbr, imm ^ tmp ); :}

    1.41 + XOR.B #imm, @(R0, GBR) {: MEM_READ_BYTE_FOR_WRITE(R0+sh4r.gbr, tmp); MEM_WRITE_BYTE( R0 + sh4r.gbr, imm ^ tmp ); :}

    1.42  XTRCT Rm, Rn {: sh4r.r[Rn] = (sh4r.r[Rn]>>16) | (sh4r.r[Rm]<<16); :}

    1.43  

    1.44  ROTL Rn {:
.