Author: Dann Corbit
Date: 21:10:41 02/26/04
Go up one level in this thread
On February 26, 2004 at 23:59:22, Russell Reagan wrote:
>On February 26, 2004 at 23:55:15, Slater Wold wrote:
>
>>Whenever I use /DUSE_ASSEMBLY /DINLINE_AMD, I get the following error:
>>
>>Microsoft (R) C/C++ Optimizing Compiler Version 14.00.2207 for AMD64
>>Copyright (C) Microsoft Corporation 1984-2002. All rights reserved.
>>
>>x1.c
>>c:\c64\inlineamd.h(6) : error C2061: syntax error : identifier 'FirstOne'
>>c:\c64\inlineamd.h(6) : error C2059: syntax error : ';'
>>c:\c64\inlineamd.h(6) : error C2059: syntax error : 'type'
>>c:\c64\inlineamd.h(21) : error C2061: syntax error : identifier 'LastOne'
>>c:\c64\inlineamd.h(21) : error C2059: syntax error : ';'
>>c:\c64\inlineamd.h(21) : error C2059: syntax error : 'type'
>>c:\c64\inlineamd.h(36) : error C2061: syntax error : identifier 'PopCnt'
>>c:\c64\inlineamd.h(36) : error C2059: syntax error : ';'
>>c:\c64\inlineamd.h(36) : error C2059: syntax error : 'type'
>>x1.c(8213) : warning C4028: formal parameter 1 different from declaration
>>NMAKE : fatal error U1077: 'cl' : return code '0x2'
>>Stop.
>>
>>
>>Any ideas?
>
>I haven't looked at this, but my first guess is that you are trying to use Bob's
>assembly that was written for gcc. gcc uses AT&T style assembly, while Microsoft
>compilers use Intel style assembly.
You guessed correctly.
/*
AMD Opteron inline functions for FirstOne(), LastOne() and
PopCnt(). Note that these are 64 bit functions and they use
64 bit (quad-word) X86-64 instructions.
*/
int static __inline__ FirstOne(long word)
{
long dummy, dummy2;
asm(" bsrq %0, %1" "\n\t"
" jnz 1f" "\n\t"
" movq $-1, %1" "\n\t"
"1: movq $63, %0" "\n\t"
" subq %1, %0" "\n\t"
:"=r&"(dummy), "=r&" (dummy2)
:"0"((long) (word))
:"cc");
return (dummy);
}
int static __inline__ LastOne(long word)
{
long dummy, dummy2;
asm(" bsfq %0, %1" "\n\t"
" jnz 1f" "\n\t"
" movq $-1, %1" "\n\t"
"1: movq $63, %0" "\n\t"
" subq %1, %0" "\n\t"
:"=r&"(dummy), "=r&" (dummy2)
:"0"((long) (word))
:"cc");
return (dummy);
}
int static __inline__ PopCnt(long word)
{
long dummy, dummy2, dummy3;
asm(" xorq %0, %0" "\n\t"
" testq %1, %1" "\n\t"
" jz 2f" "\n\t"
"1: leaq -1(%1),%2" "\n\t"
" incq %0" "\n\t"
" andq %2, %1" "\n\t"
" jnz 1b" "\n\t"
"2: " "\n\t"
:"=r&"(dummy), "=r&"(dummy2), "=r&" (dummy3)
:"1"((long) (word))
:"cc");
return (dummy);
}
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