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ARMv7: MUL implemented

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This commit is contained in:
Nekotekina 2015-01-23 06:50:14 +03:00
parent ca3e82341d
commit bef2ee8f72
2 changed files with 41 additions and 7 deletions
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34
rpcs3/Emu/ARMv7/ARMv7Interpreter.cpp
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@ -1846,11 +1846,45 @@ void ARMv7_instrs::MSR_REG(ARMv7Context& context, const ARMv7Code code, const AR
void ARMv7_instrs::MUL(ARMv7Context& context, const ARMv7Code code, const ARMv7_encoding type)
{
bool set_flags = !context.ITSTATE;
u32 cond = context.ITSTATE.advance();
u32 d = 0;
u32 n = 0;
u32 m = 0;
switch (type)
{
case T1:
{
d = m = code.data & 0x7;
n = (code.data & 0x38) >> 3;
break;
}
case T2:
{
d = (code.data & 0xf00) >> 8;
n = (code.data & 0xf0000) >> 16;
m = (code.data & 0xf);
set_flags = false;
break;
}
case A1: throw __FUNCTION__;
default: throw __FUNCTION__;
}
if (ConditionPassed(context, cond))
{
const u32 op1 = context.read_gpr(n);
const u32 op2 = context.read_gpr(m);
const u32 result = op1 * op2;
context.write_gpr(d, result);
if (set_flags)
{
context.APSR.N = result >> 31;
context.APSR.Z = result == 0;
}
}
}