diff options
Diffstat (limited to 'mp3lib/decode_i586.s')
-rw-r--r-- | mp3lib/decode_i586.s | 321 |
1 files changed, 0 insertions, 321 deletions
diff --git a/mp3lib/decode_i586.s b/mp3lib/decode_i586.s deleted file mode 100644 index a4dc904071..0000000000 --- a/mp3lib/decode_i586.s +++ /dev/null @@ -1,321 +0,0 @@ -/ -/ mpg123_synth_1to1 works the same way as the c version of this -/ file. only two types of changes have been made: -/ - reordered floating point instructions to -/ prevent pipline stalls -/ - made WRITE_SAMPLE use integer instead of -/ (slower) floating point -/ all kinds of x86 processors should benefit from these -/ modifications. -/ -/ useful sources of information on optimizing x86 code include: -/ -/ Intel Architecture Optimization Manual -/ http://www.intel.com/design/pentium/manuals/242816.htm -/ -/ Cyrix 6x86 Instruction Set Summary -/ ftp://ftp.cyrix.com/6x86/6x-dbch6.pdf -/ -/ AMD-K5 Processor Software Development -/ http://www.amd.com/products/cpg/techdocs/appnotes/20007e.pdf -/ -/ Stefan Bieschewski <stb@acm.org> -/ -/ $Id$ -/ -.bss - .comm buffs,4352,4 -.data - .align 4 -bo: - .long 1 -.section .rodata - .align 8 -.LC0: - .long 0x0,0x40dfffc0 - .align 8 -.LC1: - .long 0x0,0xc0e00000 - .align 8 -.text -.globl synth_1to1_pent -synth_1to1_pent: - subl $12,%esp - pushl %ebp - pushl %edi - pushl %esi - pushl %ebx - movl 32(%esp),%eax - movl 40(%esp),%esi - xorl %edi,%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: - flds (%ecx) - fmuls (%ebx) - flds 4(%ecx) - fmuls 4(%ebx) - fxch %st(1) - flds 8(%ecx) - fmuls 8(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds 12(%ecx) - fmuls 12(%ebx) - fxch %st(2) - faddp %st,%st(1) - flds 16(%ecx) - fmuls 16(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds 20(%ecx) - fmuls 20(%ebx) - fxch %st(2) - faddp %st,%st(1) - flds 24(%ecx) - fmuls 24(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds 28(%ecx) - fmuls 28(%ebx) - fxch %st(2) - faddp %st,%st(1) - flds 32(%ecx) - fmuls 32(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds 36(%ecx) - fmuls 36(%ebx) - fxch %st(2) - faddp %st,%st(1) - flds 40(%ecx) - fmuls 40(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds 44(%ecx) - fmuls 44(%ebx) - fxch %st(2) - faddp %st,%st(1) - flds 48(%ecx) - fmuls 48(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds 52(%ecx) - fmuls 52(%ebx) - fxch %st(2) - faddp %st,%st(1) - flds 56(%ecx) - fmuls 56(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds 60(%ecx) - fmuls 60(%ebx) - fxch %st(2) - subl $4,%esp - faddp %st,%st(1) - fxch %st(1) - fsubrp %st,%st(1) - fistpl (%esp) - popl %eax - cmpl $32767,%eax - jg 1f - cmpl $-32768,%eax - jl 2f - movw %ax,(%esi) - jmp 4f -1: movw $32767,(%esi) - jmp 3f -2: movw $-32768,(%esi) -3: incl %edi -4: -.L54: - addl $64,%ebx - subl $-128,%ecx - addl $4,%esi - decl %ebp - jnz .L55 - flds (%ecx) - fmuls (%ebx) - flds 8(%ecx) - fmuls 8(%ebx) - flds 16(%ecx) - fmuls 16(%ebx) - fxch %st(2) - faddp %st,%st(1) - flds 24(%ecx) - fmuls 24(%ebx) - fxch %st(2) - faddp %st,%st(1) - flds 32(%ecx) - fmuls 32(%ebx) - fxch %st(2) - faddp %st,%st(1) - flds 40(%ecx) - fmuls 40(%ebx) - fxch %st(2) - faddp %st,%st(1) - flds 48(%ecx) - fmuls 48(%ebx) - fxch %st(2) - faddp %st,%st(1) - flds 56(%ecx) - fmuls 56(%ebx) - fxch %st(2) - subl $4,%esp - faddp %st,%st(1) - fxch %st(1) - faddp %st,%st(1) - fistpl (%esp) - popl %eax - cmpl $32767,%eax - jg 1f - cmpl $-32768,%eax - jl 2f - movw %ax,(%esi) - jmp 4f -1: movw $32767,(%esi) - jmp 3f -2: movw $-32768,(%esi) -3: incl %edi -4: -.L62: - addl $-64,%ebx - addl $4,%esi - movl 16(%esp),%edx - leal -128(%ecx,%edx,8),%ecx - movl $15,%ebp -.L68: - flds -4(%ecx) - fchs - fmuls (%ebx) - flds -8(%ecx) - fmuls 4(%ebx) - fxch %st(1) - flds -12(%ecx) - fmuls 8(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds -16(%ecx) - fmuls 12(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds -20(%ecx) - fmuls 16(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds -24(%ecx) - fmuls 20(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds -28(%ecx) - fmuls 24(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds -32(%ecx) - fmuls 28(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds -36(%ecx) - fmuls 32(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds -40(%ecx) - fmuls 36(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds -44(%ecx) - fmuls 40(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds -48(%ecx) - fmuls 44(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds -52(%ecx) - fmuls 48(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds -56(%ecx) - fmuls 52(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds -60(%ecx) - fmuls 56(%ebx) - fxch %st(2) - fsubrp %st,%st(1) - flds (%ecx) - fmuls 60(%ebx) - fxch %st(2) - subl $4,%esp - fsubrp %st,%st(1) - fxch %st(1) - fsubrp %st,%st(1) - fistpl (%esp) - popl %eax - cmpl $32767,%eax - jg 1f - cmpl $-32768,%eax - jl 2f - movw %ax,(%esi) - jmp 4f -1: movw $32767,(%esi) - jmp 3f -2: movw $-32768,(%esi) -3: incl %edi -4: -.L67: - addl $-64,%ebx - addl $-128,%ecx - addl $4,%esi - decl %ebp - jnz .L68 - movl %edi,%eax - popl %ebx - popl %esi - popl %edi - popl %ebp - addl $12,%esp - ret - |