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armjit: inline byteswaps of imm values.

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Unknown W. Brackets 2013-11-10 10:01:40 -08:00
parent ee492099b5
commit 9bec82873c
1 changed files with 19 additions and 23 deletions
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42
Core/MIPS/ARM/ArmCompALU.cpp
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@ -506,8 +506,7 @@ namespace MIPSComp
return;
// WARNING : ROTR
switch (op & 0x3f)
{
switch (op & 0x3f) {
case 0: CompShiftImm(op, ST_LSL, sa); break; //sll
case 2: CompShiftImm(op, rs == 1 ? ST_ROR : ST_LSR, sa); break; //srl
case 3: CompShiftImm(op, ST_ASR, sa); break; //sra
@ -536,11 +535,9 @@ namespace MIPSComp
if (rt == 0)
return;
switch (op & 0x3f)
{
switch (op & 0x3f) {
case 0x0: //ext
if (gpr.IsImm(rs))
{
if (gpr.IsImm(rs)) {
gpr.SetImm(rt, (gpr.GetImm(rs) >> pos) & mask);
return;
}
@ -558,11 +555,9 @@ namespace MIPSComp
{
u32 sourcemask = mask >> pos;
u32 destmask = ~(sourcemask << pos);
if (gpr.IsImm(rs))
{
if (gpr.IsImm(rs)) {
u32 inserted = (gpr.GetImm(rs) & sourcemask) << pos;
if (gpr.IsImm(rt))
{
if (gpr.IsImm(rt)) {
gpr.SetImm(rt, (gpr.GetImm(rt) & destmask) | inserted);
return;
}
@ -570,9 +565,7 @@ namespace MIPSComp
gpr.MapReg(rt, MAP_DIRTY);
ANDI2R(gpr.R(rt), gpr.R(rt), destmask, R0);
ORI2R(gpr.R(rt), gpr.R(rt), inserted, R0);
}
else
{
} else {
gpr.MapDirtyIn(rt, rs, false);
if (cpu_info.bArmV7) {
BFI(gpr.R(rt), gpr.R(rs), pos, size-pos);
@ -596,11 +589,9 @@ namespace MIPSComp
if (rd == 0)
return;
switch ((op >> 6) & 31)
{
switch ((op >> 6) & 31) {
case 16: // seb // R(rd) = (u32)(s32)(s8)(u8)R(rt);
if (gpr.IsImm(rt))
{
if (gpr.IsImm(rt)) {
gpr.SetImm(rd, (s32)(s8)(u8)gpr.GetImm(rt));
return;
}
@ -609,8 +600,7 @@ namespace MIPSComp
break;
case 24: // seh
if (gpr.IsImm(rt))
{
if (gpr.IsImm(rt)) {
gpr.SetImm(rd, (s32)(s16)(u16)gpr.GetImm(rt));
return;
}
@ -619,8 +609,7 @@ namespace MIPSComp
break;
case 20: //bitrev
if (gpr.IsImm(rt))
{
if (gpr.IsImm(rt)) {
// http://graphics.stanford.edu/~seander/bithacks.html#ReverseParallel
u32 v = gpr.GetImm(rt);
v = ((v >> 1) & 0x55555555) | ((v & 0x55555555) << 1); // odd<->even
@ -654,15 +643,22 @@ namespace MIPSComp
if (rd == 0)
return;
switch (op & 0x3ff)
{
switch (op & 0x3ff) {
case 0xA0: //wsbh
if (gpr.IsImm(rt)) {
gpr.SetImm(rd, ((gpr.GetImm(rt) & 0xFF00FF00) >> 8) | ((gpr.GetImm(rt) & 0x00FF00FF) << 8));
} else {
gpr.MapDirtyIn(rd, rt);
REV16(gpr.R(rd), gpr.R(rt));
}
break;
case 0xE0: //wsbw
if (gpr.IsImm(rt)) {
gpr.SetImm(rd, swap32(gpr.GetImm(rt)));
} else {
gpr.MapDirtyIn(rd, rt);
REV(gpr.R(rd), gpr.R(rt));
}
break;
default:
Comp_Generic(op);