diff options
| author | Jose Fonseca <j_r_fonseca@yahoo.co.uk> | 2002-04-19 21:27:12 +0000 |
|---|---|---|
| committer | Jose Fonseca <j_r_fonseca@yahoo.co.uk> | 2002-04-19 21:27:12 +0000 |
| commit | 04df3bbe8e12d7ac44936d5de75933b28a51a8e3 (patch) | |
| tree | bf54b6553ab1cd4e22f6e909115d82550026fa93 /src/mesa/x86/mmx_blend.S | |
| parent | 3fe2bb8933c15a7091838fd982dbad402fe6ad43 (diff) | |
Re-scheduling of the instructions according to the MMX pairing rules. This is dificult to quantify but the improvemnet reaches about of 0.7% in some cases in a Pentium III. In older Pentiums the improvements could be quite substancial due less capable integer pipelines.
Diffstat (limited to 'src/mesa/x86/mmx_blend.S')
| -rw-r--r-- | src/mesa/x86/mmx_blend.S | 78 |
1 files changed, 36 insertions, 42 deletions
diff --git a/src/mesa/x86/mmx_blend.S b/src/mesa/x86/mmx_blend.S index 259d71c2fa..9fe3e71796 100644 --- a/src/mesa/x86/mmx_blend.S +++ b/src/mesa/x86/mmx_blend.S @@ -5,9 +5,6 @@ #include "matypes.h" -/* FIXME: The pairing rules must be checked as they aren't being fully obeyed. - */ - /* integer multiplication - alpha plus one * * makes the following approximation to the division (Sree) @@ -24,9 +21,9 @@ */ #define GMB_MULT_AP1( MP1, MA1, MP2, MA2, MX1 ) \ PSUBW ( MX1, MA1 ) /* a1 + 1 | a1 + 1 | a1 + 1 | a1 + 1 */ ;\ -TWO(PSUBW ( MX1, MA2 )) /* a2 + 1 | a2 + 1 | a2 + 1 | a2 + 1 */ ;\ - ;\ PMULLW ( MP1, MA1 ) /* t1 = p1*a1 */ ;\ + ;\ +TWO(PSUBW ( MX1, MA2 )) /* a2 + 1 | a2 + 1 | a2 + 1 | a2 + 1 */ ;\ TWO(PMULLW ( MP2, MA2 )) /* t2 = p2*a2 */ ;\ ;\ PSRLW ( CONST(8), MA1 ) /* t1 >> 8 ~= t1/255 */ ;\ @@ -51,15 +48,15 @@ TWO(PSRLW ( CONST(8), MA2 )) /* t2 >> 8 ~= t2/255 TWO(PMULLW ( MP2, MA2 )) /* t2 = p2*a2 */ ;\ ;\ MOVQ ( MA1, MP1 ) ;\ -TWO(MOVQ ( MA2, MP2 )) ;\ + PSRLW ( CONST(8), MA1 ) /* t1 >> 8 */ ;\ ;\ - PSRLW ( CONST(8), MP1 ) /* t1 >> 8 */ ;\ -TWO(PSRLW ( CONST(8), MP2 )) /* t2 >> 8 */ ;\ +TWO(MOVQ ( MA2, MP2 )) ;\ +TWO(PSRLW ( CONST(8), MA2 )) /* t2 >> 8 */ ;\ ;\ PADDW ( MP1, MA1 ) /* t1 + (t1 >> 8) ~= (t1/255) << 8 */ ;\ -TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\ - ;\ PSRLW ( CONST(8), MA1 ) /* sa1 | sb1 | sg1 | sr1 */ ;\ + ;\ +TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\ TWO(PSRLW ( CONST(8), MA2 )) /* sa2 | sb2 | sg2 | sr2 */ @@ -76,21 +73,21 @@ TWO(PSRLW ( CONST(8), MA2 )) /* sa2 | sb2 | sg2 | sr2 */ #define GMB_MULT_GSR( MP1, MA1, MP2, MA2, M80 ) \ PMULLW ( MP1, MA1 ) /* t1 = p1*a1 */ ;\ -TWO(PMULLW ( MP2, MA2 )) /* t2 = p2*a2 */ ;\ - ;\ PADDW ( M80, MA1 ) /* t1 += 0x80 */ ;\ + ;\ +TWO(PMULLW ( MP2, MA2 )) /* t2 = p2*a2 */ ;\ TWO(PADDW ( M80, MA2 )) /* t2 += 0x80 */ ;\ ;\ MOVQ ( MA1, MP1 ) ;\ -TWO(MOVQ ( MA2, MP2 )) ;\ + PSRLW ( CONST(8), MA1 ) /* t1 >> 8 */ ;\ ;\ - PSRLW ( CONST(8), MP1 ) /* t1 >> 8 */ ;\ -TWO(PSRLW ( CONST(8), MP2 )) /* t2 >> 8 */ ;\ +TWO(MOVQ ( MA2, MP2 )) ;\ +TWO(PSRLW ( CONST(8), MA2 )) /* t2 >> 8 */ ;\ ;\ PADDW ( MP1, MA1 ) /* t1 + (t1 >> 8) ~= (t1/255) << 8 */ ;\ -TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\ - ;\ PSRLW ( CONST(8), MA1 ) /* sa1 | sb1 | sg1 | sr1 */ ;\ + ;\ +TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\ TWO(PSRLW ( CONST(8), MA2 )) /* sa2 | sb2 | sg2 | sr2 */ @@ -98,19 +95,18 @@ TWO(PSRLW ( CONST(8), MA2 )) /* sa2 | sb2 | sg2 | sr2 */ #define GMB_LERP_GS( MP1, MQ1, MA1, MP2, MQ2, MA2) \ PSUBW ( MQ1, MP1 ) /* pa1 - qa1 | pb1 - qb1 | pg1 - qg1 | pr1 - qr1 */ ;\ -TWO(PSUBW ( MQ2, MP2 )) /* pa2 - qa2 | pb2 - qb2 | pg2 - qg2 | pr2 - qr2 */ ;\ - ;\ PSLLW ( CONST(8), MQ1 ) /* q1 << 8 */ ;\ -TWO(PSLLW ( CONST(8), MQ2 )) /* q2 << 8 */ ;\ - ;\ PMULLW ( MP1, MA1 ) /* t1 = (q1 - p1)*pa1 */ ;\ + ;\ +TWO(PSUBW ( MQ2, MP2 )) /* pa2 - qa2 | pb2 - qb2 | pg2 - qg2 | pr2 - qr2 */ ;\ +TWO(PSLLW ( CONST(8), MQ2 )) /* q2 << 8 */ ;\ TWO(PMULLW ( MP2, MA2 )) /* t2 = (q2 - p2)*pa2 */ ;\ ;\ MOVQ ( MA1, MP1 ) ;\ -TWO(MOVQ ( MA2, MP2 )) ;\ + PSRLW ( CONST(8), MA1 ) /* t1 >> 8 */ ;\ ;\ - PSRLW ( CONST(8), MP1 ) /* t1 >> 8 */ ;\ -TWO(PSRLW ( CONST(8), MP2 )) /* t2 >> 8 */ ;\ +TWO(MOVQ ( MA2, MP2 )) ;\ +TWO(PSRLW ( CONST(8), MA2 )) /* t2 >> 8 */ ;\ ;\ PADDW ( MP1, MA1 ) /* t1 + (t1 >> 8) ~= (t1/255) << 8 */ ;\ TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\ @@ -130,12 +126,11 @@ TWO(PSRLW ( CONST(8), MA2 )) /* sa2 | sb2 | sg2 | sr2 */ #define GMB_LERP_GSR( MP1, MQ1, MA1, MP2, MQ2, MA2, M80) \ PSUBW ( MQ1, MP1 ) /* pa1 - qa1 | pb1 - qb1 | pg1 - qg1 | pr1 - qr1 */ ;\ -TWO(PSUBW ( MQ2, MP2 )) /* pa2 - qa2 | pb2 - qb2 | pg2 - qg2 | pr2 - qr2 */ ;\ - ;\ PSLLW ( CONST(8), MQ1 ) /* q1 << 8 */ ;\ -TWO(PSLLW ( CONST(8), MQ2 )) /* q2 << 8 */ ;\ - ;\ PMULLW ( MP1, MA1 ) /* t1 = (q1 - p1)*pa1 */ ;\ + ;\ +TWO(PSUBW ( MQ2, MP2 )) /* pa2 - qa2 | pb2 - qb2 | pg2 - qg2 | pr2 - qr2 */ ;\ +TWO(PSLLW ( CONST(8), MQ2 )) /* q2 << 8 */ ;\ TWO(PMULLW ( MP2, MA2 )) /* t2 = (q2 - p2)*pa2 */ ;\ ;\ PSRLW ( CONST(15), MP1 ) /* q1 > p1 ? 1 : 0 */ ;\ @@ -151,10 +146,10 @@ TWO(PSUBW ( MP2, MA2 )) /* t2 -=? 0x100 TWO(PADDW ( M80, MA2 )) /* t2 += 0x80 */ ;\ ;\ MOVQ ( MA1, MP1 ) ;\ -TWO(MOVQ ( MA2, MP2 )) ;\ + PSRLW ( CONST(8), MA1 ) /* t1 >> 8 */ ;\ ;\ - PSRLW ( CONST(8), MP1 ) /* t1 >> 8 */ ;\ -TWO(PSRLW ( CONST(8), MP2 )) /* t2 >> 8 */ ;\ +TWO(MOVQ ( MA2, MP2 )) ;\ +TWO(PSRLW ( CONST(8), MA2 )) /* t2 >> 8 */ ;\ ;\ PADDW ( MP1, MA1 ) /* t1 + (t1 >> 8) ~= (t1/255) << 8 */ ;\ TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\ @@ -176,25 +171,24 @@ TWO(PSRLW ( CONST(8), MA2 )) /* sa2 | sb2 | sg2 | sr2 */ #define GMB_LERP_GSC( MP1, MQ1, MA1, MP2, MQ2, MA2) \ PSUBW ( MQ1, MP1 ) /* pa1 - qa1 | pb1 - qb1 | pg1 - qg1 | pr1 - qr1 */ ;\ -TWO(PSUBW ( MQ2, MP2 )) /* pa2 - qa2 | pb2 - qb2 | pg2 - qg2 | pr2 - qr2 */ ;\ - ;\ PSLLW ( CONST(8), MQ1 ) /* q1 << 8 */ ;\ -TWO(PSLLW ( CONST(8), MQ2 )) /* q2 << 8 */ ;\ - ;\ PMULLW ( MP1, MA1 ) /* t1 = (q1 - p1)*pa1 */ ;\ + ;\ +TWO(PSUBW ( MQ2, MP2 )) /* pa2 - qa2 | pb2 - qb2 | pg2 - qg2 | pr2 - qr2 */ ;\ +TWO(PSLLW ( CONST(8), MQ2 )) /* q2 << 8 */ ;\ TWO(PMULLW ( MP2, MA2 )) /* t2 = (q2 - p2)*pa2 */ ;\ ;\ MOVQ ( MA1, MP1 ) ;\ -TWO(MOVQ ( MA2, MP2 )) ;\ + PSRLW ( CONST(8), MA1 ) /* t1 >> 8 */ ;\ ;\ - PSRLW ( CONST(8), MP1 ) /* t1 >> 8 */ ;\ -TWO(PSRLW ( CONST(8), MP2 )) /* t2 >> 8 */ ;\ +TWO(MOVQ ( MA2, MP2 )) ;\ +TWO(PSRLW ( CONST(8), MA2 )) /* t2 >> 8 */ ;\ ;\ - PADDW ( MP1, MA1 ) /* t1 + (t1 >> 8) ~= (t1/255) << 8 */ ;\ -TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\ + PADDW ( MA1, MP1 ) /* t1 + (t1 >> 8) ~= (t1/255) << 8 */ ;\ + PSRLW ( CONST(7), MA1 ) /* t1 >> 15 */ ;\ ;\ - PSRLW ( CONST(7), MP1 ) /* t1 >> 15 */ ;\ -TWO(PSRLW ( CONST(7), MP2 )) /* t2 >> 15 */ ;\ +TWO(PADDW ( MA2, MP2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\ +TWO(PSRLW ( CONST(7), MA2 )) /* t2 >> 15 */ ;\ ;\ PADDW ( MP1, MA1 ) /* t1 + (t1 >> 8) + (t1 >>15) ~= (t1/255) << 8 */ ;\ TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) + (t2 >>15) ~= (t2/255) << 8 */ ;\ |