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SHUFPS_SWAP_DWORDS to make it easier to tell what it's doing.

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This commit is contained in:
Ben Vanik
2013-10-19 14:21:56 -07:00
parent 5df538cd44
commit 31161e0245
1 changed files with 10 additions and 8 deletions
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18
src/xenia/cpu/x64/x64_emit_altivec.cc
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@@ -22,6 +22,8 @@ namespace xe {
namespace cpu {
namespace x64 {
#define SHUFPS_SWAP_DWORDS 0x1B
// Most of this file comes from:
// http://biallas.net/doc/vmx128/vmx128.txt
@@ -166,7 +168,7 @@ int InstrEmit_lvsl_(X64Emitter& e, X86Compiler& c, InstrData& i, uint32_t vd, ui
c.mov(gt, imm((sysint_t)__lvsl_table));
XmmVar v(c.newXmmVar());
c.movaps(v, xmmword_ptr(gt, ea));
c.shufps(v, v, imm(0x1B));
c.shufps(v, v, imm(SHUFPS_SWAP_DWORDS));
e.update_vr_value(vd, v);
e.TraceVR(vd);
return 0;
@@ -208,7 +210,7 @@ int InstrEmit_lvsr_(X64Emitter& e, X86Compiler& c, InstrData& i, uint32_t vd, ui
c.mov(gt, imm((sysint_t)__lvsr_table));
XmmVar v(c.newXmmVar());
c.movaps(v, xmmword_ptr(gt, ea));
c.shufps(v, v, imm(0x1B));
c.shufps(v, v, imm(SHUFPS_SWAP_DWORDS));
e.update_vr_value(vd, v);
e.TraceVR(vd);
return 0;
@@ -227,7 +229,7 @@ int InstrEmit_lvx_(X64Emitter& e, X86Compiler& c, InstrData& i, uint32_t vd, uin
c.add(ea, e.gpr_value(ra));
}
XmmVar v = e.ReadMemoryXmm(i.address, ea, 4);
c.shufps(v, v, imm(0x1B));
c.shufps(v, v, imm(SHUFPS_SWAP_DWORDS));
e.update_vr_value(vd, v);
e.TraceVR(vd);
return 0;
@@ -274,7 +276,7 @@ int InstrEmit_stvx_(X64Emitter& e, X86Compiler& c, InstrData& i, uint32_t vd, ui
c.add(ea, e.gpr_value(ra));
}
XmmVar v = e.vr_value(vd);
c.shufps(v, v, imm(0x1B));
c.shufps(v, v, imm(SHUFPS_SWAP_DWORDS));
e.WriteMemoryXmm(i.address, ea, 4, v);
e.TraceVR(vd);
return 0;
@@ -319,7 +321,7 @@ int InstrEmit_lvlx_(X64Emitter& e, X86Compiler& c, InstrData& i, uint32_t vd, ui
c.pshufb(v, xmmword_ptr(gt, sh));
}
c.bind(done);
c.shufps(v, v, imm(0x1B));
c.shufps(v, v, imm(SHUFPS_SWAP_DWORDS));
e.update_vr_value(vd, v);
e.TraceVR(vd);
return 0;
@@ -362,7 +364,7 @@ int InstrEmit_lvrx_(X64Emitter& e, X86Compiler& c, InstrData& i, uint32_t vd, ui
c.shl(sh, imm(4)); // table offset = (16b * sh)
c.mov(gt, imm((sysint_t)__shift_table_right));
c.pshufb(v, xmmword_ptr(gt, sh));
c.shufps(v, v, imm(0x1B));
c.shufps(v, v, imm(SHUFPS_SWAP_DWORDS));
}
c.bind(done);
e.update_vr_value(vd, v);
@@ -401,7 +403,7 @@ int InstrEmit_stvlx_(X64Emitter& e, X86Compiler& c, InstrData& i, uint32_t vd, u
ea = e.TouchMemoryAddress(i.address, ea);
XmmVar tvd(c.newXmmVar());
c.movaps(tvd, e.vr_value(vd));
c.shufps(tvd, tvd, imm(0x1B));
c.shufps(tvd, tvd, imm(SHUFPS_SWAP_DWORDS));
c.save(tvd);
GpVar pvd(c.newGpVar());
c.lea(pvd, tvd.m128());
@@ -446,7 +448,7 @@ int InstrEmit_stvrx_(X64Emitter& e, X86Compiler& c, InstrData& i, uint32_t vd, u
ea = e.TouchMemoryAddress(i.address, ea);
XmmVar tvd(c.newXmmVar());
c.movaps(tvd, e.vr_value(vd));
c.shufps(tvd, tvd, imm(0x1B));
c.shufps(tvd, tvd, imm(SHUFPS_SWAP_DWORDS));
c.save(tvd);
GpVar pvd(c.newGpVar());
c.lea(pvd, tvd.m128());