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winedbg: Distinguish -0 from 0. 

According to A8.8.56, A8.8.64 and A8.8.81 of ARM DDI 0406C.d,
0 and -0 generate different instructions.
Manually add "-".

Signed-off-by: Qijia Liu <liumeo@pku.edu.cn>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Qijia Liu 2020-12-30 22:28:20 +00:00 committed by Alexandre Julliard
parent b79211efec
commit 0201aa3b60
1 changed files with 6 additions and 12 deletions
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18
programs/winedbg/be_arm.c
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@ -192,22 +192,20 @@ static UINT arm_disasm_halfwordtrans(UINT inst, ADDRESS64 *addr)
short indexing = (inst >> 24) & 0x01;
short offset = ((inst >> 4) & 0xf0) + (inst & 0x0f);
if (!direction) offset *= -1;
dbg_printf("\n\t%s%s%s%s%s", load ? "ldr" : "str", sign ? "s" : "",
halfword ? "h" : (sign ? "b" : ""), writeback ? "t" : "", get_cond(inst));
dbg_printf("\t%s, ", tbl_regs[get_nibble(inst, 3)]);
if (indexing)
{
if (immediate)
dbg_printf("[%s, #%d]", tbl_regs[get_nibble(inst, 4)], offset);
dbg_printf("[%s, #%s%d]", tbl_regs[get_nibble(inst, 4)], direction ? "" : "-", offset);
else
dbg_printf("[%s, %s]", tbl_regs[get_nibble(inst, 4)], tbl_regs[get_nibble(inst, 0)]);
}
else
{
if (immediate)
dbg_printf("[%s], #%d", tbl_regs[get_nibble(inst, 4)], offset);
dbg_printf("[%s], #%s%d", tbl_regs[get_nibble(inst, 4)], direction ? "" : "-", offset);
else
dbg_printf("[%s], %s", tbl_regs[get_nibble(inst, 4)], tbl_regs[get_nibble(inst, 0)]);
}
@ -310,15 +308,13 @@ static UINT arm_disasm_singletrans(UINT inst, ADDRESS64 *addr)
short immediate = !((inst >> 25) & 0x01);
short offset = inst & 0x0fff;
if (!direction) offset *= -1;
dbg_printf("\n\t%s%s%s%s", load ? "ldr" : "str", byte ? "b" : "", writeback ? "t" : "",
get_cond(inst));
dbg_printf("\t%s, ", tbl_regs[get_nibble(inst, 3)]);
if (indexing)
{
if (immediate)
dbg_printf("[%s, #%d]", tbl_regs[get_nibble(inst, 4)], offset);
dbg_printf("[%s, #%s%d]", tbl_regs[get_nibble(inst, 4)], direction ? "" : "-", offset);
else if (((inst >> 4) & 0xff) == 0x00) /* no shift */
dbg_printf("[%s, %s]", tbl_regs[get_nibble(inst, 4)], tbl_regs[get_nibble(inst, 0)]);
else if (((inst >> 4) & 0x01) == 0x00) /* immediate shift (there's no register shift) */
@ -330,7 +326,7 @@ static UINT arm_disasm_singletrans(UINT inst, ADDRESS64 *addr)
else
{
if (immediate)
dbg_printf("[%s], #%d", tbl_regs[get_nibble(inst, 4)], offset);
dbg_printf("[%s], #%s%d", tbl_regs[get_nibble(inst, 4)], direction ? "" : "-", offset);
else if (((inst >> 4) & 0xff) == 0x00) /* no shift */
dbg_printf("[%s], %s", tbl_regs[get_nibble(inst, 4)], tbl_regs[get_nibble(inst, 0)]);
else if (((inst >> 4) & 0x01) == 0x00) /* immediate shift (there's no register shift) */
@ -414,13 +410,11 @@ static UINT arm_disasm_coprocdatatrans(UINT inst, ADDRESS64 *addr)
WORD indexing = (inst >> 24) & 0x01;
short offset = (inst & 0xff) << 2;
if (!direction) offset *= -1;
dbg_printf("\n\t%s%s%s", load ? "ldc" : "stc", translen ? "l" : "", get_cond(inst));
if (indexing)
dbg_printf("\t%u, cr%u, [%s, #%d]%s", CPnum, CRd, tbl_regs[get_nibble(inst, 4)], offset, writeback?"!":"");
dbg_printf("\t%u, cr%u, [%s, #%s%d]%s", CPnum, CRd, tbl_regs[get_nibble(inst, 4)], direction ? "" : "-", offset, writeback?"!":"");
else
dbg_printf("\t%u, cr%u, [%s], #%d", CPnum, CRd, tbl_regs[get_nibble(inst, 4)], offset);
dbg_printf("\t%u, cr%u, [%s], #%s%d", CPnum, CRd, tbl_regs[get_nibble(inst, 4)], direction ? "" : "-", offset);
return 0;
}