=?UTF-8?Q?Andr=C3=A9=20Hentschel=20?=: winedbg: Add multiplication operators to Thumb2 disassembler.
Alexandre Julliard
julliard at winehq.org
Mon Jun 11 15:08:06 CDT 2012
Module: wine
Branch: master
Commit: 82dbeed2cc7324e667478b3f324440f5b0cb60d0
URL: http://source.winehq.org/git/wine.git/?a=commit;h=82dbeed2cc7324e667478b3f324440f5b0cb60d0
Author: André Hentschel <nerv at dawncrow.de>
Date: Sun Jun 10 20:07:14 2012 +0200
winedbg: Add multiplication operators to Thumb2 disassembler.
---
programs/winedbg/be_arm.c | 38 ++++++++++++++++++++++++++++++++++++++
1 files changed, 38 insertions(+), 0 deletions(-)
diff --git a/programs/winedbg/be_arm.c b/programs/winedbg/be_arm.c
index c66c2b0..c5edfd9 100644
--- a/programs/winedbg/be_arm.c
+++ b/programs/winedbg/be_arm.c
@@ -594,6 +594,43 @@ static UINT thumb2_disasm_misc(UINT inst, ADDRESS64 *addr)
return inst;
}
+static UINT thumb2_disasm_mul(UINT inst, ADDRESS64 *addr)
+{
+ WORD op1 = (inst >> 20) & 0x07;
+ WORD op2 = (inst >> 4) & 0x03;
+
+ if (op1)
+ return inst;
+
+ if (op2 == 0 && get_nibble(inst, 3) != 0xf)
+ {
+ dbg_printf("\n\tmla\t%s, %s, %s, %s\t", tbl_regs[get_nibble(inst, 2)],
+ tbl_regs[get_nibble(inst, 4)],
+ tbl_regs[get_nibble(inst, 0)],
+ tbl_regs[get_nibble(inst, 3)]);
+ return 0;
+ }
+
+ if (op2 == 0 && get_nibble(inst, 3) == 0xf)
+ {
+ dbg_printf("\n\tmul\t%s, %s, %s\t", tbl_regs[get_nibble(inst, 2)],
+ tbl_regs[get_nibble(inst, 4)],
+ tbl_regs[get_nibble(inst, 0)]);
+ return 0;
+ }
+
+ if (op2 == 1)
+ {
+ dbg_printf("\n\tmls\t%s, %s, %s, %s\t", tbl_regs[get_nibble(inst, 2)],
+ tbl_regs[get_nibble(inst, 4)],
+ tbl_regs[get_nibble(inst, 0)],
+ tbl_regs[get_nibble(inst, 3)]);
+ return 0;
+ }
+
+ return inst;
+}
+
struct inst_arm
{
UINT mask;
@@ -648,6 +685,7 @@ static const struct inst_thumb16 tbl_thumb16[] = {
static const struct inst_arm tbl_thumb32[] = {
{ 0xf800f800, 0xf000f800, thumb2_disasm_branchlinked },
{ 0xffc0f0c0, 0xfa80f080, thumb2_disasm_misc },
+ { 0xff8000c0, 0xfb000000, thumb2_disasm_mul },
{ 0x00000000, 0x00000000, NULL }
};
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