diff options
Diffstat (limited to 'mp3lib/decode_sse.s')
| -rw-r--r-- | mp3lib/decode_sse.s | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/mp3lib/decode_sse.s b/mp3lib/decode_sse.s deleted file mode 100644 index eebd2f6cfb..0000000000 --- a/mp3lib/decode_sse.s +++ /dev/null @@ -1,201 +0,0 @@ -/// -/// Replacement of synth_1to1() with Intel's SSE SIMD operations support -/// -/// This code based 'decode_k7.s' by Nick Kurshev -/// <squash@mb.kcom.ne.jp>,only some types of changes have been made: -/// -/// - SSE optimization -/// - change function name for support SSE automatic detect -/// -/// 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 4 -bo: - .long 1 -.text -/* int synth_1to1(real *bandPtr,int channel,unsigned char *out) */ -.globl synth_1to1_sse -synth_1to1_sse: - 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 - addl $12, %esp - movl 16(%esp),%edx - leal 0(,%edx,4),%edx - movl $decwin+64,%eax - movl %eax,%ecx - subl %edx,%ecx - movl $16,%ebp - -.L55: - movups (%ecx), %xmm0 - mulps (%ebx), %xmm0 - movups 16(%ecx), %xmm1 - mulps 16(%ebx), %xmm1 - addps %xmm1, %xmm0 - movups 32(%ecx), %xmm1 - mulps 32(%ebx), %xmm1 - addps %xmm1, %xmm0 - movups 48(%ecx), %xmm1 - mulps 48(%ebx), %xmm1 - addps %xmm1, %xmm0 -/* pfnacc -> PFNACC mmreg1, mmreg2 performs the following operations: */ -/* temp = mmreg2 */ -/* mmreg1[31:0] = mmreg1[31:0] - mmreg1[63:32] */ -/* mmreg1[63:32]= temp [31:0] - temp[63:32] */ -/* save difference of mmreg1's low-word and high-word into mmreg1's low-word */ -/* save difference of mmreg2's low-word and high-word into mmreg1's high-word */ - movhlps %xmm0, %xmm1 - addps %xmm1, %xmm0 - movaps %xmm0, %xmm1 - shufps $0x55, %xmm1, %xmm1 /* fake of pfnacc. 1|1|1|1 */ - - subss %xmm1, %xmm0 - cvtss2si %xmm0, %eax - -/ sar $16,%eax - movw %ax,(%esi) - - addl $64,%ebx - subl $-128,%ecx - addl $4,%esi - decl %ebp - jnz .L55 - -/ --- end of loop 1 --- - - movups (%ecx), %xmm0 - mulps (%ebx), %xmm0 - movups 16(%ecx), %xmm1 - mulps 16(%ebx), %xmm1 - addps %xmm1, %xmm0 - movups 32(%ecx), %xmm1 - mulps 32(%ebx), %xmm1 - addps %xmm1, %xmm0 - movups 48(%ecx), %xmm1 - mulps 48(%ebx), %xmm1 - addps %xmm1, %xmm0 - movhlps %xmm0, %xmm1 - addss %xmm1, %xmm0 - cvtss2si %xmm0, %eax - -/ sar $16,%eax - - movw %ax,(%esi) - - addl $-64,%ebx - addl $4,%esi - addl $256,%ecx - movl $15,%ebp - -.L68: - xorps %xmm0, %xmm0 - movups (%ecx), %xmm1 - mulps (%ebx), %xmm1 - subps %xmm1, %xmm0 - movups 16(%ecx), %xmm1 - mulps 16(%ebx), %xmm1 - subps %xmm1, %xmm0 - movups 32(%ecx), %xmm1 - mulps 32(%ebx), %xmm1 - subps %xmm1, %xmm0 - movups 48(%ecx), %xmm1 - mulps 48(%ebx), %xmm1 - subps %xmm1, %xmm0 - movhlps %xmm0, %xmm1 - subps %xmm1, %xmm0 - movaps %xmm0, %xmm1 - shufps $0x55, %xmm1, %xmm1 /* fake of pfacc 1|1|1|1 */ - addss %xmm1, %xmm0 - cvtss2si %xmm0, %eax - -/ sar $16,%eax - - movw %ax,(%esi) - - addl $-64,%ebx - subl $-128,%ecx - addl $4,%esi - decl %ebp - jnz .L68 - -/ --- end of loop 2 - - movl %edi,%eax - popl %ebx - popl %esi - popl %edi - popl %ebp - addl $12,%esp - ret |