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fht4code: a very old bug fixed in Step2

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git-svn-id: svn://kolibrios.org@3474 a494cfbc-eb01-0410-851d-a64ba20cac60
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Artem Jerdev (art_zh) 2013-04-16 23:52:35 +00:00
parent c50ad68d88
commit 3f2315327d
1 changed files with 842 additions and 841 deletions
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9
programs/other/fft/fht4code.asm
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@ -418,9 +418,10 @@ step2:
fld _t6 fld _t6
fld qword[ebx+8] fld qword[ebx+8]
fld st1 fld st1
fsub st0, st1 fld st1
fxch st1 faddp st3, st0
faddp st2, st0 ; st : t2, t1 fsubp st1, st0 ; st : t2, t1
fld _t8 fld _t8
fsub _t0 fsub _t0
fld _t5 fld _t5
@ -430,7 +431,7 @@ step2:
fsub st0, st1 fsub st0, st1
fstp qword[ebx+8*9] ; f[l3] = t1-t4 fstp qword[ebx+8*9] ; f[l3] = t1-t4
fadd st0, st3 fadd st0, st3
fstp qword[ebx+8] ; f[l1] = t1+t4 fstp qword[ebx+8] ; f[l1] = t1+t4
fld st1 ; st : t2, t3, t2, t1 fld st1 ; st : t2, t3, t2, t1
fsub st0, st1 ; f[l4] = t2-t3 fsub st0, st1 ; f[l4] = t2-t3
fstp qword[ebx+8*13] ; st : t3, t2, t1 fstp qword[ebx+8*13] ; st : t3, t2, t1