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Adding srd/srw. Fixing shamts in other shifts.

This commit is contained in:
Ben Vanik 2013-05-27 05:35:41 -07:00
parent 778efdb276
commit 1d0ec64d40
2 changed files with 93 additions and 10 deletions
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95
src/xenia/cpu/x64/x64_emit_alu.cc
View File

@ -418,8 +418,20 @@ XEEMITTER(subfx, 0x7C000050, XO )(X64Emitter& e, X86Compiler& c, InstrDat
}
XEEMITTER(subfcx, 0x7C000010, XO )(X64Emitter& e, X86Compiler& c, InstrData& i) {
XEINSTRNOTIMPLEMENTED();
return 1;
// RT <- ¬(RA) + (RB) + 1
GpVar v(c.newGpVar());
c.mov(v, e.gpr_value(i.XO.RA));
c.not_(v);
c.stc(); // Always carrying.
c.adc(v, e.gpr_value(i.XO.RB));
GpVar cc(c.newGpVar());
c.setc(cc.r8());
e.update_gpr_value(i.XO.RT, v);
e.update_xer_with_carry(cc);
return 0;
}
XEEMITTER(subficx, 0x20000000, D )(X64Emitter& e, X86Compiler& c, InstrData& i) {
@ -723,8 +735,24 @@ XEEMITTER(cntlzwx, 0x7C000034, X )(X64Emitter& e, X86Compiler& c, InstrDat
}
XEEMITTER(eqvx, 0x7C000238, X )(X64Emitter& e, X86Compiler& c, InstrData& i) {
XEINSTRNOTIMPLEMENTED();
return 1;
// RA <- (RS) == (RB)
// UNTESTED: ensure this is correct.
//XEASSERTALWAYS();
//c.int3();
GpVar v(c.newGpVar());
c.mov(v, e.gpr_value(i.X.RT));
c.xor_(v, e.gpr_value(i.X.RB));
c.not_(v);
e.update_gpr_value(i.X.RA, v);
if (i.X.Rc) {
// With cr0 update.
e.update_cr_with_cond(0, v);
}
return 0;
}
XEEMITTER(extsbx, 0x7C000774, X )(X64Emitter& e, X86Compiler& c, InstrData& i) {
@ -1025,9 +1053,12 @@ XEEMITTER(sldx, 0x7C000036, X )(X64Emitter& e, X86Compiler& c, InstrDat
// m <- i64.0
// RA <- r & m
GpVar sh(c.newGpVar());
c.mov(sh, e.gpr_value(i.X.RB));
c.and_(sh, imm(0x3F));
GpVar v(c.newGpVar());
c.mov(v, e.gpr_value(i.X.RT));
c.shl(v, e.gpr_value(i.X.RB));
c.shl(v, sh);
e.update_gpr_value(i.X.RA, v);
if (i.X.Rc) {
@ -1047,9 +1078,12 @@ XEEMITTER(slwx, 0x7C000030, X )(X64Emitter& e, X86Compiler& c, InstrDat
// m <- i64.0
// RA <- r & m
GpVar sh(c.newGpVar());
c.mov(sh, e.gpr_value(i.X.RB));
c.and_(sh, imm(0x1F));
GpVar v(c.newGpVar());
c.mov(v, e.gpr_value(i.X.RT));
c.shl(v, e.gpr_value(i.X.RB));
c.shl(v, sh);
c.mov(v.r32(), v.r32());
e.update_gpr_value(i.X.RA, v);
@ -1123,13 +1157,54 @@ XEEMITTER(srawix, 0x7C000670, X )(X64Emitter& e, X86Compiler& c, InstrDat
}
XEEMITTER(srdx, 0x7C000436, X )(X64Emitter& e, X86Compiler& c, InstrData& i) {
XEINSTRNOTIMPLEMENTED();
return 1;
// n <- (RB)[59:63]
// r <- ROTL64((RS), 64-n)
// if (RB)[58] = 0 then
// m <- MASK(n, 63)
// else
// m <- i64.0
// RA <- r & m
GpVar sh(c.newGpVar());
c.mov(sh, e.gpr_value(i.X.RB));
c.and_(sh, imm(0x3F));
GpVar v(c.newGpVar());
c.mov(v, e.gpr_value(i.X.RT));
c.shr(v, sh);
e.update_gpr_value(i.X.RA, v);
if (i.X.Rc) {
// With cr0 update.
e.update_cr_with_cond(0, v);
}
return 0;
}
XEEMITTER(srwx, 0x7C000430, X )(X64Emitter& e, X86Compiler& c, InstrData& i) {
XEINSTRNOTIMPLEMENTED();
return 1;
// n <- (RB)[59:63]
// r <- ROTL32((RS)[32:63], 64-n)
// if (RB)[58] = 0 then
// m <- MASK(n+32, 63)
// else
// m <- i64.0
// RA <- r & m
GpVar sh(c.newGpVar());
c.mov(sh, e.gpr_value(i.X.RB));
c.and_(sh, imm(0x1F));
GpVar v(c.newGpVar());
c.mov(v, e.gpr_value(i.X.RT));
c.shr(v, sh);
c.mov(v.r32(), v.r32());
e.update_gpr_value(i.X.RA, v);
if (i.X.Rc) {
// With cr0 update.
e.update_cr_with_cond(0, v);
}
return 0;
}

8
src/xenia/cpu/x64/x64_emit_fpu.cc
View File

@ -406,6 +406,10 @@ XEEMITTER(fcfidx, 0xFC00069C, X )(X64Emitter& e, X86Compiler& c, InstrDat
XEEMITTER(fctidx, 0xFC00065C, X )(X64Emitter& e, X86Compiler& c, InstrData& i) {
// frD <- double_to_signed_int64( frB )
// UNTESTED: ensure this is correct.
//XEASSERTALWAYS();
//c.int3();
Label over_max(c.newLabel());
Label under_min(c.newLabel());
Label done(c.newLabel());
@ -459,6 +463,10 @@ XEEMITTER(fctidzx, 0xFC00065E, X )(X64Emitter& e, X86Compiler& c, InstrDat
XEEMITTER(fctiwx, 0xFC00001C, X )(X64Emitter& e, X86Compiler& c, InstrData& i) {
// frD <- double_to_signed_int32( frB )
// UNTESTED: ensure this is correct.
//XEASSERTALWAYS();
//c.int3();
Label over_max(c.newLabel());
Label under_min(c.newLabel());
Label done(c.newLabel());