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32x: drc: some constant propagation

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@860 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2010-01-15 21:04:42 +00:00
parent 5aec752dac
commit 2368651527
5 changed files with 532 additions and 200 deletions
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7
cpu/sh2/mame/sh2dasm.c
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@ -490,7 +490,8 @@ static UINT32 op1000(char *buffer, UINT32 pc, UINT16 opcode)
static UINT32 op1001(char *buffer, UINT32 pc, UINT16 opcode)
{
sprintf(buffer, "MOV.W @($%04X,PC),%s", (opcode & 0xff) * 2, regname[Rn]);
sprintf(buffer, "MOV.W @($%02X,PC),%s ; @$%08x", (opcode & 0xff) * 2, regname[Rn],
pc + (opcode & 0xff) * 2 + 2);
return 0;
}
@ -566,8 +567,8 @@ static UINT32 op1100(char *buffer, UINT32 pc, UINT16 opcode)
static UINT32 op1101(char *buffer, UINT32 pc, UINT16 opcode)
{
sprintf(buffer, "MOV.L @($%02X,PC),%s ; #$%06x", (opcode * 4) & 0x3ff, regname[Rn],
(pc + ((opcode * 4) & 0x3ff) + 2) & ~3);
sprintf(buffer, "MOV.L @($%02X,PC),%s ; @$%08x", (opcode & 0xff) * 4, regname[Rn],
(pc + (opcode & 0xff) * 4 + 2) & ~3);
return 0;
}