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rsx/common: Div is vector over scalar division

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According to investigation on Resogun.
This commit is contained in:
Vincent Lejeune 2016-01-24 00:05:52 +01:00
parent 9875bf9c7b
commit 9b8522e734
1 changed files with 2 additions and 2 deletions
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4
rpcs3/Emu/RSX/Common/FragmentProgramDecompiler.cpp
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@ -340,7 +340,7 @@ bool FragmentProgramDecompiler::handle_sct(u32 opcode)
switch (opcode) switch (opcode)
{ {
case RSX_FP_OPCODE_ADD: SetDst("($0 + $1)"); return true; case RSX_FP_OPCODE_ADD: SetDst("($0 + $1)"); return true;
case RSX_FP_OPCODE_DIV: SetDst("($0 / $1)"); return true; case RSX_FP_OPCODE_DIV: SetDst("($0 / $1.xxxx)"); return true;
// Note: DIVSQ is not IEEE compliant. divsq(0, 0) is 0 (Super Puzzle Fighter II Turbo HD Remix). // Note: DIVSQ is not IEEE compliant. divsq(0, 0) is 0 (Super Puzzle Fighter II Turbo HD Remix).
// sqrt(x, 0) might be equal to some big value (in absolute) whose sign is sign(x) but it has to be proven. // sqrt(x, 0) might be equal to some big value (in absolute) whose sign is sign(x) but it has to be proven.
case RSX_FP_OPCODE_DIVSQ: SetDst("divsq_legacy($0, $1)"); return true; case RSX_FP_OPCODE_DIVSQ: SetDst("divsq_legacy($0, $1)"); return true;
@ -376,7 +376,7 @@ bool FragmentProgramDecompiler::handle_scb(u32 opcode)
{ {
case RSX_FP_OPCODE_ADD: SetDst("($0 + $1)"); return true; case RSX_FP_OPCODE_ADD: SetDst("($0 + $1)"); return true;
case RSX_FP_OPCODE_COS: SetDst("cos($0.xxxx)"); return true; case RSX_FP_OPCODE_COS: SetDst("cos($0.xxxx)"); return true;
case RSX_FP_OPCODE_DIV: SetDst("($0 / $1)"); return true; case RSX_FP_OPCODE_DIV: SetDst("($0 / $1.xxxx)"); return true;
// Note: DIVSQ is not IEEE compliant. sqrt(0, 0) is 0 (Super Puzzle Fighter II Turbo HD Remix). // Note: DIVSQ is not IEEE compliant. sqrt(0, 0) is 0 (Super Puzzle Fighter II Turbo HD Remix).
// sqrt(x, 0) might be equal to some big value (in absolute) whose sign is sign(x) but it has to be proven. // sqrt(x, 0) might be equal to some big value (in absolute) whose sign is sign(x) but it has to be proven.
case RSX_FP_OPCODE_DIVSQ: SetDst("divsq_legacy($0, sqrt($1).xxxx)"); return true; case RSX_FP_OPCODE_DIVSQ: SetDst("divsq_legacy($0, sqrt($1).xxxx)"); return true;