mirror of https://github.com/mpv-player/mpv
162 lines
3.9 KiB
ArmAsm
162 lines
3.9 KiB
ArmAsm
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# This code was taken from http://www.mpg123.org
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# See ChangeLog of mpg123-0.59s-pre.1 for detail
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# Applied to mplayer by Nick Kurshev <nickols_k@mail.ru>
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.bss
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.align 8
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.comm decwin,2176,32
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.align 8
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.comm decwins,2176,32
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.data
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.align 8
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intwinbase_MMX:
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.value 0, -1, -1, -1, -1, -1, -1, -2
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.value -2, -2, -2, -3, -3, -4, -4, -5
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.value -5, -6, -7, -7, -8, -9, -10, -11
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.value -13, -14, -16, -17, -19, -21, -24, -26
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.value -29, -31, -35, -38, -41, -45, -49, -53
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.value -58, -63, -68, -73, -79, -85, -91, -97
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.value -104, -111, -117, -125, -132, -139, -147, -154
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.value -161, -169, -176, -183, -190, -196, -202, -208
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.value -213, -218, -222, -225, -227, -228, -228, -227
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.value -224, -221, -215, -208, -200, -189, -177, -163
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.value -146, -127, -106, -83, -57, -29, 2, 36
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.value 72, 111, 153, 197, 244, 294, 347, 401
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.value 459, 519, 581, 645, 711, 779, 848, 919
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.value 991, 1064, 1137, 1210, 1283, 1356, 1428, 1498
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.value 1567, 1634, 1698, 1759, 1817, 1870, 1919, 1962
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.value 2001, 2032, 2057, 2075, 2085, 2087, 2080, 2063
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.value 2037, 2000, 1952, 1893, 1822, 1739, 1644, 1535
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.value 1414, 1280, 1131, 970, 794, 605, 402, 185
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.value -45, -288, -545, -814, -1095, -1388, -1692, -2006
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.value -2330, -2663, -3004, -3351, -3705, -4063, -4425, -4788
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.value -5153, -5517, -5879, -6237, -6589, -6935, -7271, -7597
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.value -7910, -8209, -8491, -8755, -8998, -9219, -9416, -9585
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.value -9727, -9838, -9916, -9959, -9966, -9935, -9863, -9750
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.value -9592, -9389, -9139, -8840, -8492, -8092, -7640, -7134
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.value -6574, -5959, -5288, -4561, -3776, -2935, -2037, -1082
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.value -70, 998, 2122, 3300, 4533, 5818, 7154, 8540
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.value 9975, 11455, 12980, 14548, 16155, 17799, 19478, 21189
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.value 22929, 24694, 26482, 28289, 30112, 31947,-26209,-24360
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.value -22511,-20664,-18824,-16994,-15179,-13383,-11610, -9863
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.value -8147, -6466, -4822, -3222, -1667, -162, 1289, 2684
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.value 4019, 5290, 6494, 7629, 8692, 9679, 10590, 11420
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.value 12169, 12835, 13415, 13908, 14313, 14630, 14856, 14992
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.value 15038
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intwindiv:
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.long 0x47800000 # 65536.0
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.text
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.align 32
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.globl make_decode_tables_MMX
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make_decode_tables_MMX:
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pushl %edi
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pushl %esi
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pushl %ebx
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xorl %ecx,%ecx
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xorl %ebx,%ebx
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movl $32,%esi
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movl $intwinbase_MMX,%edi
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negl 16(%esp) # scaleval
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pushl $2 # intwinbase step
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.L00:
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cmpl $528,%ecx
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jnc .L02
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movswl (%edi),%eax
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cmpl $intwinbase_MMX+444,%edi
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jc .L01
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addl $60000,%eax
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.L01:
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pushl %eax
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fildl (%esp)
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fdivs intwindiv
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fimull 24(%esp)
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popl %eax
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fsts decwin(,%ecx,4)
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fstps decwin+64(,%ecx,4)
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.L02:
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leal -1(%esi),%edx
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and %ebx,%edx
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cmp $31,%edx
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jnz .L03
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addl $-1023,%ecx
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test %esi,%ebx
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jz .L03
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negl 20(%esp)
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.L03:
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addl %esi,%ecx
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addl (%esp),%edi
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incl %ebx
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cmpl $intwinbase_MMX,%edi
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jz .L04
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cmp $256,%ebx
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jnz .L00
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negl (%esp)
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jmp .L00
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.L04:
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popl %eax
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xorl %ecx,%ecx
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xorl %ebx,%ebx
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pushl $2
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.L05:
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cmpl $528,%ecx
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jnc .L11
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movswl (%edi),%eax
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cmpl $intwinbase_MMX+444,%edi
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jc .L06
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addl $60000,%eax
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.L06:
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cltd
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imull 20(%esp)
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shrdl $17,%edx,%eax
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cmpl $32767,%eax
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movl $1055,%edx
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jle .L07
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movl $32767,%eax
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jmp .L08
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.L07:
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cmpl $-32767,%eax
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jge .L08
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movl $-32767,%eax
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.L08:
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cmpl $512,%ecx
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jnc .L09
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subl %ecx,%edx
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movw %ax,decwins(,%edx,2)
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movw %ax,decwins-32(,%edx,2)
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.L09:
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testl $1,%ecx
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jnz .L10
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negl %eax
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.L10:
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movw %ax,decwins(,%ecx,2)
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movw %ax,decwins+32(,%ecx,2)
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.L11:
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leal -1(%esi),%edx
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and %ebx,%edx
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cmp $31,%edx
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jnz .L12
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addl $-1023,%ecx
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test %esi,%ebx
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jz .L12
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negl 20(%esp)
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.L12:
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addl %esi,%ecx
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addl (%esp),%edi
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incl %ebx
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cmpl $intwinbase_MMX,%edi
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jz .L13
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cmp $256,%ebx
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jnz .L05
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negl (%esp)
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jmp .L05
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.L13:
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popl %eax
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popl %ebx
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popl %esi
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popl %edi
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ret
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