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I feel empty now. 

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@3058 96395faa-99c1-11dd-bbfe-3dabce05a288
This commit is contained in:
sudonim1 2010-05-22 13:17:03 +00:00
parent e272080354
commit e5bbb0f956
1 changed files with 8 additions and 6 deletions
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14
pcsx2/x86/iMMI.cpp
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@ -798,20 +798,22 @@ void recPADDSW( void )
SSE2_PADDD_XMM_to_XMM(EEREC_D, EEREC_T);
}
SSE2_PXOR_XMM_to_XMM(t1reg, t0reg); // Sign(Rs) != Sign(Rt)
SSE2_PXOR_XMM_to_XMM(t0reg, EEREC_D); // Sign(Rs) != Sign(Rd)
SSE2_PXOR_XMM_to_XMM(t0reg, t1reg); // Sign(Rs) != Sign(Rt)
SSE2_PXOR_XMM_to_XMM(t1reg, EEREC_D); // Sign(Rs) != Sign(Rd)
SSE2_PANDN_XMM_to_XMM(t0reg, t1reg); // (Sign(Rs) == Sign(Rt)) & (Sign(Rs) != Sign(Rd))
SSE2_PSRAD_I8_to_XMM(t0reg, 31);
SSE2_PCMPEQD_XMM_to_XMM(t1reg, t1reg);
SSE2_PXOR_XMM_to_XMM(t0reg, t1reg); // could've been avoided if Intel wasn't too prudish for a PORN instruction
SSE2_PSLLD_I8_to_XMM(t1reg, 31); // 0x80000000
SSEX_MOVDQA_XMM_to_XMM(t2reg, EEREC_D);
SSE2_PSRAD_I8_to_XMM(t2reg, 31);
SSE2_PXOR_XMM_to_XMM(t2reg, t1reg); // t2reg = (Rd < 0) ? 0x80000000 : 0x7fffffff
SSE2_PAND_XMM_to_XMM(t2reg, t0reg);
SSE2_PANDN_XMM_to_XMM(EEREC_D, t0reg);
SSE2_POR_XMM_to_XMM(EEREC_D, t2reg);
SSE2_PXOR_XMM_to_XMM(t1reg, t2reg); // t2reg = (Rd < 0) ? 0x7fffffff : 0x80000000
SSE2_PAND_XMM_to_XMM(EEREC_D, t0reg);
SSE2_PANDN_XMM_to_XMM(t0reg, t1reg);
SSE2_POR_XMM_to_XMM(EEREC_D, t0reg);
_freeXMMreg(t0reg);
_freeXMMreg(t1reg);