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- #
- # x86 format converters for HERMES
- # Some routines Copyright (c) 1998 Christian Nentwich ([email protected])
- # This source code is licensed under the GNU LGPL
- #
- # Please refer to the file COPYING.LIB contained in the distribution for
- # licensing conditions
- #
- # Most routines are (c) Glenn Fiedler ([email protected]), used with permission
- #
- #BITS 32
- .globl _ConvertMMX
- .globl _mmxreturn
- .text
- ## _ConvertMMX:
- ## [ESP+8] ConverterInfo*
- ## --------------------------------------------------------------------------
- ## ConverterInfo (ebp+..)
- ## 0: void *s_pixels
- ## 4: int s_width
- ## 8: int s_height
- ## 12: int s_add
- ## 16: void *d_pixels
- ## 20: int d_width
- ## 24: int d_height
- ## 28: int d_add
- ## 32: void (*converter_function)()
- ## 36: int32 *lookup
- _ConvertMMX:
- pushl %ebp
- movl %esp,%ebp
- movl 8(%ebp),%eax
- cmpl $0,4(%eax)
- je endconvert
- movl %eax,%ebp
- movl (%ebp),%esi
- movl 16(%ebp),%edi
- y_loop:
- movl 4(%ebp),%ecx
- jmp *32(%ebp)
- _mmxreturn:
- addl 12(%ebp),%esi
- addl 28(%ebp),%edi
- decl 8(%ebp)
- jnz y_loop
- popl %ebp
- endconvert:
- emms
- ret
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