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armjit: Use sat0/1 method from prefixes in vsat.

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Unknown W. Brackets 2014-05-31 09:20:47 -07:00
parent 0acf2e0ba7
commit df289e46a9
1 changed files with 26 additions and 17 deletions
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43
Core/MIPS/ARM/ArmCompVFPU.cpp
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@ -891,27 +891,36 @@ namespace MIPSComp
case 2: // d[i] = -s[i]; break; //vneg
VNEG(fpr.V(tempregs[i]), fpr.V(sregs[i]));
break;
/* These are probably just as broken as the prefix.
case 4: // if (s[i] < 0) d[i] = 0; else {if(s[i] > 1.0f) d[i] = 1.0f; else d[i] = s[i];} break; // vsat0
fpr.MapDirtyInV(tempregs[i], sregs[i]);
MOVI2F(S0, 0.5f, SCRATCHREG1);
VABS(S1, fpr.V(sregs[i])); // S1 = fabs(x)
VSUB(fpr.V(tempregs[i]), fpr.V(sregs[i]), S0); // S2 = fabs(x-0.5f) {VABD}
VABS(fpr.V(tempregs[i]), fpr.V(tempregs[i]));
VSUB(fpr.V(tempregs[i]), S1, fpr.V(tempregs[i])); // v[i] = S1 - S2 + 0.5f
VADD(fpr.V(tempregs[i]), fpr.V(tempregs[i]), S0);
MOVI2F(S0, 0.0f, SCRATCHREG1);
MOVI2F(S1, 1.0f, SCRATCHREG1);
VCMP(fpr.V(sregs[i]), S0);
VMRS_APSR(); // Move FP flags from FPSCR to APSR (regular flags).
VMOV(fpr.V(tempregs[i]), fpr.V(sregs[i]));
SetCC(CC_LS);
VMOV(fpr.V(tempregs[i]), S0);
SetCC(CC_AL);
VCMP(fpr.V(sregs[i]), S1);
VMRS_APSR(); // Move FP flags from FPSCR to APSR (regular flags).
SetCC(CC_GT);
VMOV(fpr.V(tempregs[i]), S1);
SetCC(CC_AL);
break;
case 5: // if (s[i] < -1.0f) d[i] = -1.0f; else {if(s[i] > 1.0f) d[i] = 1.0f; else d[i] = s[i];} break; // vsat1
fpr.MapDirtyInV(tempregs[i], sregs[i]);
MOVI2F(S0, 1.0f, SCRATCHREG1);
VABS(S1, fpr.V(sregs[i])); // S1 = fabs(x)
VSUB(fpr.V(tempregs[i]), fpr.V(sregs[i]), S0); // S2 = fabs(x-1.0f) {VABD}
VABS(fpr.V(tempregs[i]), fpr.V(tempregs[i]));
VSUB(fpr.V(tempregs[i]), S1, fpr.V(tempregs[i])); // v[i] = S1 - S2
MOVI2F(S0, -1.0f, SCRATCHREG1);
MOVI2F(S1, 1.0f, SCRATCHREG1);
VCMP(fpr.V(sregs[i]), S0);
VMRS_APSR(); // Move FP flags from FPSCR to APSR (regular flags).
VMOV(fpr.V(tempregs[i]), fpr.V(sregs[i]));
SetCC(CC_LO);
VMOV(fpr.V(tempregs[i]), S0);
SetCC(CC_AL);
VCMP(fpr.V(sregs[i]), S1);
VMRS_APSR(); // Move FP flags from FPSCR to APSR (regular flags).
SetCC(CC_GT);
VMOV(fpr.V(tempregs[i]), S1);
SetCC(CC_AL);
break;
*/
case 16: // d[i] = 1.0f / s[i]; break; //vrcp
MOVI2F(S0, 1.0f, SCRATCHREG1);
VDIV(fpr.V(tempregs[i]), S0, fpr.V(sregs[i]));