diff options
Diffstat (limited to 'mp3lib/decode_k7.s')
| -rw-r--r-- | mp3lib/decode_k7.s | 364 |
1 files changed, 0 insertions, 364 deletions
diff --git a/mp3lib/decode_k7.s b/mp3lib/decode_k7.s deleted file mode 100644 index 4f26c67ca4..0000000000 --- a/mp3lib/decode_k7.s +++ /dev/null @@ -1,364 +0,0 @@ -/// -/// Replacement of synth_1to1() with AMD's 3DNowEx(DSP)! SIMD operations support -/// -/// This code based 'decode_3dnow.s' by Syuuhei Kashiyama -/// <squash@mb.kcom.ne.jp>,only some types of changes have been made: -/// -/// - Added new opcode PFNACC -/// - decreased number of opcodes (as it was suggested by k7 manual) -/// (using memory reference as operand of instructions) -/// - added PREFETCHW opcode. It has different semantic on k7 than on k6-2 -/// and saves 15-25 cpu clocks for athlon. -/// - partial unrolling loops for removing slower MOVW insns. -/// (Note: probably same operation should be done for decode_3dnow.s) -/// - change function name for support 3DNowEx! automatic detect -/// - added loops alignment -/// -/// note: because K7 processors are an aggresive out-of-order three-way -/// superscalar ones instruction order is not significand for them. -/// -/// Benchmark: measured by mplayer on Duron-700: -/// 3dNow! optimized code - 1.4% of cpu usage -/// k7 optimized code (without partial loop unrolling) - 1.3% of cpu usage -/// k7 optimized code - 1.1% of cpu usage -/// Note: K6-2 users have an chance with partial loops unrolling -/// -/// Modified by Nick Kurshev <nickols_k@mail.ru> -/// -/ synth_1to1_3dnow works the same way as the c version of -/ synth_1to1. this assembler code based 'decode-i586.s' -/ (by Stefan Bieschewski <stb@acm.org>), two types of changes -/ have been made: -/ - use {MMX,3DNow!} instruction for reduce cpu -/ - remove unused(?) local symbols -/ -/ useful sources of information on optimizing 3DNow! code include: -/ AMD 3DNow! Technology Manual (Publication #21928) -/ English: http://www.amd.com/K6/k6docs/pdf/21928d.pdf -/ (Japanese: http://www.amd.com/japan/K6/k6docs/j21928c.pdf) -/ AMD-K6-2 Processor Code Optimization Application Note (Publication #21924) -/ English: http://www.amd.com/K6/k6docs/pdf/21924b.pdf -/ -/ This code was tested only AMD-K6-2 processor Linux systems, -/ please tell me: -/ - whether this code works on other 3DNow! capable processors -/ (ex.IDT-C6-2) or not -/ - whether this code works on other OSes or not -/ -/ by KIMURA Takuhiro <kim@hannah.ipc.miyakyo-u.ac.jp> - until 31.Mar.1998 -/ <kim@comtec.co.jp> - after 1.Apr.1998 - -/ Enhancments for q-word operation by Michael Hipp - -.bss - .comm buffs,4352,4 -.data - .align 8 -null_one: .long 0x0000ffff, 0x0000ffff -one_null: .long 0xffff0000, 0xffff0000 -bo: .long 1 -.text -/* int synth_1to1(real *bandPtr,int channel,unsigned char *out) */ -.globl synth_1to1_3dnowex -synth_1to1_3dnowex: - subl $12,%esp - pushl %ebp - pushl %edi - pushl %esi - pushl %ebx - - movl 32(%esp),%eax - movl 40(%esp),%esi - movl $0,%edi - movl bo,%ebp - cmpl %edi,36(%esp) - jne .L48 - decl %ebp - andl $15,%ebp - movl %ebp,bo - movl $buffs,%ecx - jmp .L49 -.L48: - addl $2,%esi - movl $buffs+2176,%ecx -.L49: - testl $1,%ebp - je .L50 - movl %ecx,%ebx - movl %ebp,16(%esp) - pushl %eax - movl 20(%esp),%edx - leal (%ebx,%edx,4),%eax - pushl %eax - movl 24(%esp),%eax - incl %eax - andl $15,%eax - leal 1088(,%eax,4),%eax - addl %ebx,%eax - jmp .L74 -.L50: - leal 1088(%ecx),%ebx - leal 1(%ebp),%edx - movl %edx,16(%esp) - pushl %eax - leal 1092(%ecx,%ebp,4),%eax - pushl %eax - leal (%ecx,%ebp,4),%eax -.L74: - pushl %eax - call dct64_3dnowex - movl 16(%esp),%edx - leal 0(,%edx,4),%edx - movl $decwin+64,%eax - movl %eax,%ecx - subl %edx,%ecx - movl $8,%ebp - prefetchw (%esi) -.align 16 -.L55: - - movq (%ecx),%mm0 - pfmul (%ebx),%mm0 - movq 128(%ecx),%mm4 - pfmul 64(%ebx),%mm4 - - movq 8(%ecx),%mm1 - pfmul 8(%ebx),%mm1 - pfadd %mm1,%mm0 - movq 136(%ecx),%mm5 - pfmul 72(%ebx),%mm5 - pfadd %mm5,%mm4 - - movq 16(%ebx),%mm2 - pfmul 16(%ecx),%mm2 - pfadd %mm2,%mm0 - movq 80(%ebx),%mm6 - pfmul 144(%ecx),%mm6 - pfadd %mm6,%mm4 - - movq 24(%ecx),%mm3 - pfmul 24(%ebx),%mm3 - pfadd %mm3,%mm0 - movq 152(%ecx),%mm7 - pfmul 88(%ebx),%mm7 - pfadd %mm7,%mm4 - - movq 32(%ebx),%mm1 - pfmul 32(%ecx),%mm1 - pfadd %mm1,%mm0 - movq 96(%ebx),%mm5 - pfmul 160(%ecx),%mm5 - pfadd %mm5,%mm4 - - movq 40(%ecx),%mm2 - pfmul 40(%ebx),%mm2 - pfadd %mm2,%mm0 - movq 168(%ecx),%mm6 - pfmul 104(%ebx),%mm6 - pfadd %mm6,%mm4 - - movq 48(%ebx),%mm3 - pfmul 48(%ecx),%mm3 - pfadd %mm3,%mm0 - movq 112(%ebx),%mm7 - pfmul 176(%ecx),%mm7 - pfadd %mm7,%mm4 - - movq 56(%ecx),%mm1 - pfmul 56(%ebx),%mm1 - pfadd %mm1,%mm0 - movq 184(%ecx),%mm5 - pfmul 120(%ebx),%mm5 - pfadd %mm5,%mm4 - - pfnacc %mm4, %mm0 - movq (%esi), %mm1 - pf2id %mm0, %mm0 - pand one_null, %mm1 - psrld $16,%mm0 - pand null_one, %mm0 - por %mm0, %mm1 - movq %mm1,(%esi) - - addl $128,%ebx - addl $256,%ecx - addl $8,%esi - decl %ebp - jnz .L55 - -/ --- end of loop 1 --- - - prefetchw (%esi) /* prefetching for writing this block and next loop */ - - movd (%ecx),%mm0 - pfmul (%ebx),%mm0 - - movd 8(%ebx),%mm1 - pfmul 8(%ecx),%mm1 - pfadd %mm1,%mm0 - - movd 16(%ebx),%mm2 - pfmul 16(%ecx),%mm2 - pfadd %mm2,%mm0 - - movd 24(%ebx),%mm3 - pfmul 24(%ecx),%mm3 - pfadd %mm3,%mm0 - - movd 32(%ebx),%mm4 - pfmul 32(%ecx),%mm4 - pfadd %mm4,%mm0 - - movd 40(%ebx),%mm5 - pfmul 40(%ecx),%mm5 - pfadd %mm5,%mm0 - - movd 48(%ebx),%mm6 - pfmul 48(%ecx),%mm6 - pfadd %mm6,%mm0 - - movd 56(%ebx),%mm7 - pfmul 56(%ecx),%mm7 - pfadd %mm7,%mm0 - - pf2id %mm0,%mm0 - movd %mm0,%eax - - sar $16,%eax - - movw %ax,(%esi) - - subl $64,%ebx - addl $4,%esi - addl $256,%ecx - movl $7,%ebp -.align 16 -.L68: - pxor %mm0, %mm0 - pxor %mm4, %mm4 - - movq (%ecx),%mm1 - pfmul (%ebx),%mm1 - pfsub %mm1,%mm0 - movq 128(%ecx),%mm5 - pfmul -64(%ebx),%mm5 - pfsub %mm5,%mm4 - - movq 8(%ecx),%mm2 - pfmul 8(%ebx),%mm2 - pfsub %mm2,%mm0 - movq 136(%ecx),%mm6 - pfmul -56(%ebx),%mm6 - pfsub %mm6,%mm4 - - movq 16(%ecx),%mm3 - pfmul 16(%ebx),%mm3 - pfsub %mm3,%mm0 - movq 144(%ecx),%mm7 - pfmul -48(%ebx),%mm7 - pfsub %mm7,%mm4 - - movq 24(%ecx),%mm1 - pfmul 24(%ebx),%mm1 - pfsub %mm1,%mm0 - movq 152(%ecx),%mm5 - pfmul -40(%ebx),%mm5 - pfsub %mm5,%mm4 - - movq 32(%ecx),%mm2 - pfmul 32(%ebx),%mm2 - pfsub %mm2,%mm0 - movq 160(%ecx),%mm6 - pfmul -32(%ebx),%mm6 - pfsub %mm6,%mm4 - - movq 40(%ecx),%mm3 - pfmul 40(%ebx),%mm3 - pfsub %mm3,%mm0 - movq 168(%ecx),%mm7 - pfmul -24(%ebx),%mm7 - pfsub %mm7,%mm4 - - movq 48(%ecx),%mm1 - pfmul 48(%ebx),%mm1 - pfsub %mm1,%mm0 - movq 176(%ecx),%mm5 - pfmul -16(%ebx),%mm5 - pfsub %mm5,%mm4 - - movq 56(%ecx),%mm2 - pfmul 56(%ebx),%mm2 - pfsub %mm2,%mm0 - movq 184(%ecx),%mm6 - pfmul -8(%ebx),%mm6 - pfsub %mm6,%mm4 - - pfacc %mm4,%mm0 - movq (%esi), %mm1 - pf2id %mm0, %mm0 - pand one_null, %mm1 - psrld $16,%mm0 - pand null_one, %mm0 - por %mm0, %mm1 - movq %mm1,(%esi) - - subl $128,%ebx - addl $256,%ecx - addl $8,%esi - decl %ebp - jnz .L68 - -/ --- end of loop 2 - - pxor %mm0, %mm0 - - movq (%ecx),%mm1 - pfmul (%ebx),%mm1 - pfsub %mm1,%mm0 - - movq 8(%ecx),%mm2 - pfmul 8(%ebx),%mm2 - pfsub %mm2,%mm0 - - movq 16(%ecx),%mm3 - pfmul 16(%ebx),%mm3 - pfsub %mm3,%mm0 - - movq 24(%ecx),%mm4 - pfmul 24(%ebx),%mm4 - pfsub %mm4,%mm0 - - movq 32(%ecx),%mm5 - pfmul 32(%ebx),%mm5 - pfsub %mm5,%mm0 - - movq 40(%ecx),%mm6 - pfmul 40(%ebx),%mm6 - pfsub %mm6,%mm0 - - movq 48(%ecx),%mm7 - pfmul 48(%ebx),%mm7 - pfsub %mm7,%mm0 - - movq 56(%ecx),%mm1 - pfmul 56(%ebx),%mm1 - pfsub %mm1,%mm0 - - pfacc %mm0,%mm0 - - pf2id %mm0,%mm0 - movd %mm0,%eax - - sar $16,%eax - - movw %ax,(%esi) - - femms - - movl %edi,%eax - popl %ebx - popl %esi - popl %edi - popl %ebp - addl $12,%esp - ret |