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winedbg: Improve and add branch operators for Thumb2 disassembler.

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This commit is contained in:
André Hentschel 2012-10-03 00:20:40 +02:00 committed by Alexandre Julliard
parent 4d39cb56fc
commit 1e1e181b2e
1 changed files with 22 additions and 4 deletions
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26
programs/winedbg/be_arm.c
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@ -634,11 +634,29 @@ static WORD thumb_disasm_movshift(WORD inst, ADDRESS64 *addr)
return 0;
}
static UINT thumb2_disasm_branchlinked(UINT inst, ADDRESS64 *addr)
static UINT thumb2_disasm_branch(UINT inst, ADDRESS64 *addr)
{
UINT offset = (((inst & 0x07ff0000) >> 4) | ((inst & 0x000007ff) << 1)) + 4;
UINT S = (inst >> 26) & 0x01;
UINT L = (inst >> 14) & 0x01;
UINT I1 = !(((inst >> 13) & 0x01) ^ S);
UINT C = !((inst >> 12) & 0x01);
UINT I2 = !(((inst >> 11) & 0x01) ^ S);
UINT offset = (inst & 0x000007ff) << 1;
dbg_printf("\n\tbl\t");
if (C)
{
offset |= I1 << 19 | I2 << 18 | (inst & 0x003f0000) >> 4;
offset += 4;
if (S) offset |= 0x0fff << 20;
}
else
{
offset |= I1 << 23 | I2 << 22 | (inst & 0x03ff0000) >> 4;
offset += 4;
if (S) offset |= 0xff << 24;
}
dbg_printf("\n\tb%s%s\t", L ? "l" : "", C ? tbl_cond[(inst >> 22) & 0x0f] : "");
db_printsym(addr->Offset + offset);
return 0;
}
@ -946,7 +964,7 @@ static const struct inst_thumb16 tbl_thumb16[] = {
};
static const struct inst_arm tbl_thumb32[] = {
{ 0xf800f800, 0xf000f800, thumb2_disasm_branchlinked },
{ 0xf800f000, 0xf0008000, thumb2_disasm_branch },
{ 0xffc0f0c0, 0xfa80f080, thumb2_disasm_misc },
{ 0xff80f000, 0xfa00f000, thumb2_disasm_dataprocessingreg },
{ 0xff8000c0, 0xfb000000, thumb2_disasm_mul },