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winedbg: Add load/store dual/exclusive and table branch operators to Thumb2 disassembler.

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André Hentschel 2012-12-10 15:16:29 +01:00 committed by Alexandre Julliard
parent b9c71ffd42
commit 785bdb6412
1 changed files with 68 additions and 0 deletions
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68
programs/winedbg/be_arm.c
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@ -1147,6 +1147,73 @@ static UINT thumb2_disasm_ldrstrmul(UINT inst, ADDRESS64 *addr)
return 0;
}
static UINT thumb2_disasm_ldrstrextbr(UINT inst, ADDRESS64 *addr)
{
WORD op1 = (inst >> 23) & 0x03;
WORD op2 = (inst >> 20) & 0x03;
WORD op3 = (inst >> 4) & 0x0f;
WORD indexing = (inst >> 24) & 0x01;
WORD direction = (inst >> 23) & 0x01;
WORD writeback = (inst >> 21) & 0x01;
WORD load = (inst >> 20) & 0x01;
short offset = (inst & 0xff) << 2;
if (op1 == 1 && op2 == 1 && op3 < 2)
{
WORD halfword = (inst >> 4) & 0x01;
if (halfword)
dbg_printf("\n\ttbh\t [%s, %s, lsl #1]", tbl_regs[get_nibble(inst, 4)],
tbl_regs[get_nibble(inst, 0)]);
else
dbg_printf("\n\ttbb\t [%s, %s]", tbl_regs[get_nibble(inst, 4)],
tbl_regs[get_nibble(inst, 0)]);
return 0;
}
if (op1 == 0 && op2 < 2)
{
if (get_nibble(inst, 2) == 15)
dbg_printf("\n\tldrex\t %s, [%s, #%u]", tbl_regs[get_nibble(inst, 3)],
tbl_regs[get_nibble(inst, 4)], offset);
else
dbg_printf("\n\tstrex\t %s, %s, [%s, #%u]", tbl_regs[get_nibble(inst, 2)],
tbl_regs[get_nibble(inst, 3)], tbl_regs[get_nibble(inst, 4)], offset);
return 0;
}
if (op1 == 1 && op2 < 2)
{
WORD halfword = (inst >> 4) & 0x01;
if (get_nibble(inst, 0) == 15)
dbg_printf("\n\tldrex%s\t %s, [%s]", halfword ? "h" : "b",
tbl_regs[get_nibble(inst, 3)], tbl_regs[get_nibble(inst, 4)]);
else
dbg_printf("\n\tstrex%s\t %s, %s, [%s]", halfword ? "h" : "b",
tbl_regs[get_nibble(inst, 0)], tbl_regs[get_nibble(inst, 3)],
tbl_regs[get_nibble(inst, 4)]);
return 0;
}
if (!direction) offset *= -1;
dbg_printf("\n\t%s\t", load ? "ldrd" : "strd");
if (indexing)
{
if (load && get_nibble(inst, 4) == 15)
{
dbg_printf("%s, %s, ", tbl_regs[get_nibble(inst, 3)], tbl_regs[get_nibble(inst, 2)]);
db_printsym(addr->Offset + offset + 4);
}
else
dbg_printf("%s, %s, [%s, #%d]%s", tbl_regs[get_nibble(inst, 3)],
tbl_regs[get_nibble(inst, 2)], tbl_regs[get_nibble(inst, 4)], offset,
writeback?"!":"");
}
else
dbg_printf("%s, %s, [%s], #%d", tbl_regs[get_nibble(inst, 3)],
tbl_regs[get_nibble(inst, 2)], tbl_regs[get_nibble(inst, 4)], offset);
return 0;
}
struct inst_arm
{
UINT mask;
@ -1226,6 +1293,7 @@ static const struct inst_arm tbl_thumb32[] = {
{ 0xefe00000, 0xec400000, thumb2_disasm_coprocmov2 },
{ 0xee000000, 0xec000000, thumb2_disasm_coprocdatatrans },
{ 0xfe402000, 0xe8000000, thumb2_disasm_ldrstrmul },
{ 0xfe400000, 0xe8400000, thumb2_disasm_ldrstrextbr },
{ 0x00000000, 0x00000000, NULL }
};