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svp: added few opcodes to translate_op()

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@361 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2008-02-21 22:48:25 +00:00
parent e807ac752b
commit f48f5e3b46
2 changed files with 46 additions and 9 deletions
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21
Pico/carthw/svp/compiler.c
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@ -521,7 +521,25 @@ static int translate_op(unsigned int op, int *pc)
switch (op >> 9)
{
// ld d, s
case 0x00: break;
case 0x00:
if (op == 0) return 1; // nop
break;
// ld a, adr
case 0x03:
EOP_ADD_IMM(0,7,1,30/2,(op&0x180)>>1); // add r1, r7, ((op&0x180)<<1)
EOP_LDRH_IMM(0,1,(op&0x7f)<<1); // ldr r0, [r1, (op&0x7f)<<1]
EOP_MOV_REG_LSL(5, 5, 16); // mov r5, r5, lsl #16 @ A
EOP_ORR_REG_SIMPLE(5, 0); // orr r5, r5, r0
EOP_MOV_REG_ROR(5,5,16); // mov r5, r5, ror #16
return 1;
// ld adr, a
case 0x07:
EOP_ADD_IMM(0,7,1,30/2,(op&0x180)>>1); // add r1, r7, ((op&0x180)<<1)
EOP_MOV_REG_LSR(0, 5, 16); // mov r0, r5, lsr #16 @ A
EOP_STRH_IMM(0,1,(op&0x7f)<<1); // str r0, [r1, (op&0x7f)<<1]
return 1;
}
return -1;
@ -634,6 +652,7 @@ void ssp1601_dyn_reset(ssp1601_t *ssp)
void ssp1601_dyn_run(int cycles)
{
//rPC = 0x1272 >> 1;
while (cycles > 0)
{
int (*trans_entry)(void);