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path: root/hw/xfree86/x86emu
authorChristian Zander <chzander@nvidia.com>2010-01-11 20:29:07 (GMT)
committer Keith Packard <keithp@keithp.com>2010-01-27 21:48:37 (GMT)
commitf57bc0ede8e018c7e264b917927c42a018cd1d5a (patch) (side-by-side diff)
tree13667ff117341947d73b86ea8fcac93331a8490e /hw/xfree86/x86emu
parent2984c18eb994696927a7f3b94d86fd47907334a0 (diff)
downloadxserver-f57bc0ede8e018c7e264b917927c42a018cd1d5a.zip
xserver-f57bc0ede8e018c7e264b917927c42a018cd1d5a.tar.gz
x86emu: Respect the LEA 67h address size prefix.
Signed-off-by: Christian Zander <chzander@nvidia.com> Signed-off-by: Aaron Plattner <aplattner@nvidia.com> Tested-by: Tiago Vignatti <tiago.vignatti@nokia.com> Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'hw/xfree86/x86emu') (more/less context) (ignore whitespace changes)
-rw-r--r--hw/xfree86/x86emu/ops.c70
1 files changed, 45 insertions, 25 deletions
diff --git a/hw/xfree86/x86emu/ops.c b/hw/xfree86/x86emu/ops.c
index 37ae2c9..21a0347 100644
--- a/hw/xfree86/x86emu/ops.c
+++ b/hw/xfree86/x86emu/ops.c
@@ -6567,42 +6567,62 @@ Handles opcode 0x8d
static void x86emuOp_lea_word_R_M(u8 X86EMU_UNUSED(op1))
{
int mod, rl, rh;
- u16 *srcreg;
uint destoffset;
-/*
- * TODO: Need to handle address size prefix!
- *
- * lea eax,[eax+ebx*2] ??
- */
-
START_OF_INSTR();
DECODE_PRINTF("LEA\t");
FETCH_DECODE_MODRM(mod, rh, rl);
switch (mod) {
case 0:
- srcreg = DECODE_RM_WORD_REGISTER(rh);
- DECODE_PRINTF(",");
- destoffset = decode_rm00_address(rl);
- DECODE_PRINTF("\n");
- TRACE_AND_STEP();
- *srcreg = (u16)destoffset;
+ if (M.x86.mode & SYSMODE_PREFIX_ADDR) {
+ u32 *srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *srcreg = (u32)destoffset;
+ } else {
+ u16 *srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *srcreg = (u16)destoffset;
+ }
break;
case 1:
- srcreg = DECODE_RM_WORD_REGISTER(rh);
- DECODE_PRINTF(",");
- destoffset = decode_rm01_address(rl);
- DECODE_PRINTF("\n");
- TRACE_AND_STEP();
- *srcreg = (u16)destoffset;
+ if (M.x86.mode & SYSMODE_PREFIX_ADDR) {
+ u32 *srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *srcreg = (u32)destoffset;
+ } else {
+ u16 *srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *srcreg = (u16)destoffset;
+ }
break;
case 2:
- srcreg = DECODE_RM_WORD_REGISTER(rh);
- DECODE_PRINTF(",");
- destoffset = decode_rm10_address(rl);
- DECODE_PRINTF("\n");
- TRACE_AND_STEP();
- *srcreg = (u16)destoffset;
+ if (M.x86.mode & SYSMODE_PREFIX_ADDR) {
+ u32 *srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *srcreg = (u32)destoffset;
+ } else {
+ u16 *srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *srcreg = (u16)destoffset;
+ }
break;
case 3: /* register to register */
/* undefined. Do nothing. */