| 0,0 → 1,129 |
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| /* |
| decode_MMX.s: MMX optimized synth |
| |
| copyright ?-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 |
| see COPYING and AUTHORS files in distribution or http://mpg123.org |
| initially written by the mysterious higway (apparently) |
| |
| Thomas' words about a note: |
| Initially, I found the note "this code comes under GPL" in this file. |
| After asking Michael about legal status of the MMX files, he said that he got them without any comment and thus I believe that the GPL comment was made by Michael, since he made mpg123 GPL at some time - and marked some files that way, but not all. |
| Based on that thought, I now consider this file along with the other parts of higway's MMX optimization to be licensed under LGPL 2.1 by Michael's decision. |
| */ |
| |
| #include "mangle.h" |
| |
| .text |
| |
| .globl ASM_NAME(synth_1to1_MMX) |
| /* int synth_1to1_MMX(real *bandPtr, int channel, short *out, short *buffs, int *bo, float *decwins); */ |
| ASM_NAME(synth_1to1_MMX): |
| pushl %ebp |
| pushl %edi |
| pushl %esi |
| pushl %ebx |
| /* stack: 0=ebx, 4=esi, 8=edi, 12=ebp, 16=back, 20=bandPtr, 24=channel, 28=out, 32=buffs, 36=bo, 40=decwins */ |
| movl 24(%esp),%ecx |
| movl 28(%esp),%edi |
| movl $15,%ebx |
| movl 36(%esp),%edx |
| leal (%edi,%ecx,2),%edi |
| decl %ecx |
| movl 32(%esp),%esi |
| movl (%edx),%eax |
| jecxz .L1 |
| decl %eax |
| andl %ebx,%eax |
| leal 1088(%esi),%esi |
| movl %eax,(%edx) |
| .L1: |
| leal (%esi,%eax,2),%edx |
| movl %eax,%ebp |
| incl %eax |
| pushl 20(%esp) |
| andl %ebx,%eax |
| leal 544(%esi,%eax,2),%ecx |
| incl %ebx |
| testl $1, %eax |
| jnz .L2 |
| xchgl %edx,%ecx |
| incl %ebp |
| leal 544(%esi),%esi |
| .L2: |
| pushl %edx |
| pushl %ecx |
| call ASM_NAME(dct64_MMX) |
| addl $12,%esp |
| /* stack like before, pushed 3, incremented again */ |
| leal 1(%ebx), %ecx |
| subl %ebp,%ebx |
| pushl %eax |
| movl 44(%esp),%eax /* decwins */ |
| leal (%eax,%ebx,2), %edx |
| popl %eax |
| .L3: |
| movq (%edx),%mm0 |
| pmaddwd (%esi),%mm0 |
| movq 8(%edx),%mm1 |
| pmaddwd 8(%esi),%mm1 |
| movq 16(%edx),%mm2 |
| pmaddwd 16(%esi),%mm2 |
| movq 24(%edx),%mm3 |
| pmaddwd 24(%esi),%mm3 |
| paddd %mm1,%mm0 |
| paddd %mm2,%mm0 |
| paddd %mm3,%mm0 |
| movq %mm0,%mm1 |
| psrlq $32,%mm1 |
| paddd %mm1,%mm0 |
| psrad $13,%mm0 |
| packssdw %mm0,%mm0 |
| movd %mm0,%eax |
| movw %ax, (%edi) |
| |
| leal 32(%esi),%esi |
| leal 64(%edx),%edx |
| leal 4(%edi),%edi |
| loop .L3 |
| |
| |
| subl $64,%esi |
| movl $15,%ecx |
| .L4: |
| movq (%edx),%mm0 |
| pmaddwd (%esi),%mm0 |
| movq 8(%edx),%mm1 |
| pmaddwd 8(%esi),%mm1 |
| movq 16(%edx),%mm2 |
| pmaddwd 16(%esi),%mm2 |
| movq 24(%edx),%mm3 |
| pmaddwd 24(%esi),%mm3 |
| paddd %mm1,%mm0 |
| paddd %mm2,%mm0 |
| paddd %mm3,%mm0 |
| movq %mm0,%mm1 |
| psrlq $32,%mm1 |
| paddd %mm0,%mm1 |
| psrad $13,%mm1 |
| packssdw %mm1,%mm1 |
| psubd %mm0,%mm0 |
| psubsw %mm1,%mm0 |
| movd %mm0,%eax |
| movw %ax,(%edi) |
| |
| subl $32,%esi |
| addl $64,%edx |
| leal 4(%edi),%edi |
| loop .L4 |
| emms |
| popl %ebx |
| popl %esi |
| popl %edi |
| popl %ebp |
| ret |
| |
| /* Mark non-executable stack. */ |
| #if defined(__linux__) && defined(__ELF__) |
| .section .note.GNU-stack,"",%progbits |
| #endif |
| |