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[GBA] Implement missing Thumb instruction 

The CMP Thumb instruction was missing one variant. This is used in the
Chinese fan translation of Mega Man Battle Network 2.

Fixes #889
This commit is contained in:
Fabrice de Gans 2023-08-27 16:51:35 -07:00
parent 0e5d63cd9a
commit 24b6ac5a28
1 changed files with 9 additions and 1 deletions
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10
src/gba/GBA-thumb.cpp
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@ -1213,6 +1213,14 @@ static INSN_REGPARM void thumb44_3(uint32_t opcode)
}
}
// CMP Rd, Rs
static INSN_REGPARM void thumb45_0(uint32_t opcode)
{
int dest = ((opcode >> 3) & 7);
uint32_t value = reg[(opcode & 7)].I;
CMP_RD_RS;
}
// CMP Rd, Hs
static INSN_REGPARM void thumb45_1(uint32_t opcode)
{
@ -1898,7 +1906,7 @@ static insnfunc_t thumbInsnTable[1024] = {
thumb3E, thumb3E, thumb3E, thumb3E, thumb3F, thumb3F, thumb3F, thumb3F,
thumb40_0, thumb40_1, thumb40_2, thumb40_3, thumb41_0, thumb41_1, thumb41_2, thumb41_3, // 40
thumb42_0, thumb42_1, thumb42_2, thumb42_3, thumb43_0, thumb43_1, thumb43_2, thumb43_3,
thumbUI, thumb44_1, thumb44_2, thumb44_3, thumbUI, thumb45_1, thumb45_2, thumb45_3,
thumbUI, thumb44_1, thumb44_2, thumb44_3, thumb45_0, thumb45_1, thumb45_2, thumb45_3,
thumb46_0, thumb46_1, thumb46_2, thumb46_3, thumb47, thumb47, thumbUI, thumbUI,
thumb48, thumb48, thumb48, thumb48, thumb48, thumb48, thumb48, thumb48, // 48
thumb48, thumb48, thumb48, thumb48, thumb48, thumb48, thumb48, thumb48,