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ARMJIT: Minor optimisations for armv6 and armv7.

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This commit is contained in:
Sacha 2013-11-06 15:28:26 +10:00
parent 0eb3d79de9
commit 81d3df0841
2 changed files with 17 additions and 10 deletions
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8
Core/MIPS/ARM/ArmCompALU.cpp
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@ -393,7 +393,7 @@ namespace MIPSComp
int pos = _POS;
int size = _SIZE + 1;
u32 mask = 0xFFFFFFFFUL >> (32 - size);
u32 mask = (1 << size) - 1;
// Don't change $zr.
if (rt == 0)
@ -436,15 +436,13 @@ namespace MIPSComp
}
else
{
gpr.MapDirtyIn(rt, rs, false);
if (cpu_info.bArmV7) {
gpr.MapDirtyIn(rt, rs, false);
BFI(gpr.R(rt), gpr.R(rs), pos, size-pos);
} else {
gpr.MapDirtyIn(rt, rs, false);
ANDI2R(R0, gpr.R(rs), sourcemask, R1);
MOV(R0, Operand2(R0, ST_LSL, pos));
ANDI2R(gpr.R(rt), gpr.R(rt), destmask, R1);
ORR(gpr.R(rt), gpr.R(rt), R0);
ORR(gpr.R(rt), gpr.R(rt), Operand2(R0, ST_LSL, pos));
}
}
}