- integrated SPARC assembly optimizations

This commit is contained in:
cebix 1999-10-21 15:27:11 +00:00
parent 1bba7c409c
commit f04292fd21
4 changed files with 657 additions and 619 deletions

View File

@ -1,610 +0,0 @@
#ifndef SPARC_ASSEMBLY__HEADER
#define SPARC_ASSEMBLY__HEADER
#ifdef SPARC_V8_ASSEMBLY
static inline char *str_flags(void)
{
static char str[8];
sprintf(str, "%c%c%c%c%c",
GET_XFLG ? 'X' : '-',
GET_NFLG ? 'N' : '-',
GET_ZFLG ? 'Z' : '-',
GET_VFLG ? 'V' : '-',
GET_CFLG ? 'C' : '-'
);
return str;
}
static inline uae_u32 sparc_v8_flag_add_8(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" sll %2, 24, %%o0\n"
" sll %3, 24, %%o1\n"
" addcc %%o0, %%o1, %%o0\n"
" addx %%g0, %%g0, %%o1 ! X,C flags\n"
" srl %%o0, 24, %0\n"
" stb %%o1, [%1 + 1]\n"
" bl,a .+8\n"
" or %%o1, 0x08, %%o1 ! N flag\n"
" bz,a .+8\n"
" or %%o1, 0x04, %%o1 ! Z flag\n"
" bvs,a .+8\n"
" or %%o1, 0x02, %%o1 ! V flag\n"
" stb %%o1, [%1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
static inline uae_u32 sparc_v8_flag_add_16(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" sll %2, 16, %%o0\n"
" sll %3, 16, %%o1\n"
" addcc %%o0, %%o1, %%o0\n"
" addx %%g0, %%g0, %%o1 ! X,C flags\n"
" srl %%o0, 16, %0\n"
" stb %%o1, [%1 + 1]\n"
" bl,a .+8\n"
" or %%o1, 0x08, %%o1 ! N flag\n"
" bz,a .+8\n"
" or %%o1, 0x04, %%o1 ! Z flag\n"
" bvs,a .+8\n"
" or %%o1, 0x02, %%o1 ! V flag\n"
" stb %%o1, [%1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
static inline uae_u32 sparc_v8_flag_add_32(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" addcc %2, %3, %0\n"
" addx %%g0, %%g0, %%o0 ! X,C flags\n"
" stb %%o0, [%1 + 1]\n"
" bl,a .+8\n"
" or %%o0, 0x08, %%o0 ! N flag\n"
" bz,a .+8\n"
" or %%o0, 0x04, %%o0 ! Z flag\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0 ! V flag\n"
" stb %%o0, [%1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0"
);
return value;
}
static inline uae_u32 sparc_v8_flag_sub_8(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" sll %2, 24, %%o0\n"
" sll %3, 24, %%o1\n"
" subcc %%o0, %%o1, %%o0\n"
" addx %%g0, %%g0, %%o1 ! X,C flags\n"
" srl %%o0, 24, %0\n"
" stb %%o1, [%1 + 1]\n"
" bl,a .+8\n"
" or %%o1, 0x08, %%o1 ! N flag\n"
" bz,a .+8\n"
" or %%o1, 0x04, %%o1 ! Z flag\n"
" bvs,a .+8\n"
" or %%o1, 0x02, %%o1 ! V flag\n"
" stb %%o1, [%1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
static inline uae_u32 sparc_v8_flag_sub_16(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" sll %2, 16, %%o0\n"
" sll %3, 16, %%o1\n"
" subcc %%o0, %%o1, %%o0\n"
" addx %%g0, %%g0, %%o1 ! X,C flags\n"
" srl %%o0, 16, %0\n"
" stb %%o1, [%1 + 1]\n"
" bl,a .+8\n"
" or %%o1, 0x08, %%o1 ! N flag\n"
" bz,a .+8\n"
" or %%o1, 0x04, %%o1 ! Z flag\n"
" bvs,a .+8\n"
" or %%o1, 0x02, %%o1 ! V flag\n"
" stb %%o1, [%1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
static inline uae_u32 sparc_v8_flag_sub_32(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" subcc %2, %3, %0\n"
" addx %%g0, %%g0, %%o0 ! X,C flags\n"
" stb %%o0, [%1 + 1]\n"
" bl,a .+8\n"
" or %%o0, 0x08, %%o0 ! N flag\n"
" bz,a .+8\n"
" or %%o0, 0x04, %%o0 ! Z flag\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0 ! V flag\n"
" stb %%o0, [%1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0"
);
return value;
}
static inline void sparc_v8_flag_cmp_8(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
__asm__ ("\n"
" sll %1, 24, %%o0\n"
" sll %2, 24, %%o1\n"
" subcc %%o0, %%o1, %%g0\n"
" addx %%g0, %%g0, %%o0 ! C flag\n"
" bl,a .+8\n"
" or %%o0, 0x08, %%o0 ! N flag\n"
" bz,a .+8\n"
" or %%o0, 0x04, %%o0 ! Z flag\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0 ! V flag\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
}
static inline void sparc_v8_flag_cmp_16(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
__asm__ ("\n"
" sll %1, 16, %%o0\n"
" sll %2, 16, %%o1\n"
" subcc %%o0, %%o1, %%g0\n"
" addx %%g0, %%g0, %%o0 ! C flag\n"
" bl,a .+8\n"
" or %%o0, 0x08, %%o0 ! N flag\n"
" bz,a .+8\n"
" or %%o0, 0x04, %%o0 ! Z flag\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0 ! V flag\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
}
static inline void sparc_v8_flag_cmp_32(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
__asm__ ("\n"
" subcc %1, %2, %%o1\n"
" srl %%o1, 31, %%o0\n"
" sll %%o0, 3, %%o0\n"
" addx %%o0, %%g0, %%o0\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0\n"
" subcc %%g0, %%o1, %%g0\n"
" addx %%g0, 7, %%o1\n"
" and %%o1, 0x04, %%o1\n"
" or %%o0, %%o1, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
}
static inline uae_u32 sparc_v8_flag_addx_8(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" ldub [%1 + 1], %%o1 ! Get the X Flag\n"
" subcc %%g0, %%o1, %%g0 ! Set the SPARC carry flag, if X set\n"
" addxcc %2, %3, %0\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
#if 0
VERY SLOW...
static inline uae_u32 sparc_v8_flag_addx_8(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" sll %2, 24, %%o0\n"
" sll %3, 24, %%o1\n"
" addcc %%o0, %%o1, %%o0\n"
" addx %%g0, %%g0, %%o1 ! X,C flags\n"
" bvs,a .+8\n"
" or %%o1, 0x02, %%o1 ! V flag\n"
" ldub [%1 + 1], %%o2\n"
" subcc %%g0, %%o2, %%g0\n"
" addx %%g0, %%g0, %%o2\n"
" sll %%o2, 24, %%o2\n"
" addcc %%o0, %%o2, %%o0\n"
" srl %%o0, 24, %0\n"
" addx %%g0, %%g0, %%o2\n"
" or %%o1, %%o2, %%o1 ! update X,C flags\n"
" bl,a .+8\n"
" or %%o1, 0x08, %%o1 ! N flag\n"
" ldub [%1], %%o0 ! retreive the old NZVC flags (XXX)\n"
" bvs,a .+8\n"
" or %%o1, 0x02, %%o1 ! update V flag\n"
" and %%o0, 0x04, %%o0 ! (XXX) but keep only Z flag\n"
" and %%o1, 1, %%o2 ! keep C flag in %%o2\n"
" bnz,a .+8\n"
" or %%g0, %%g0, %%o0 ! Z flag cleared if non-zero result\n"
" stb %%o2, [%1 + 1] ! store the X flag\n"
" or %%o1, %%o0, %%o1\n"
" stb %%o1, [%1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1", "o2"
);
return value;
}
#endif
static inline uae_u32 sparc_v8_flag_addx_32(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" ldub [%1 + 1], %%o0 ! Get the X Flag\n"
" subcc %%g0, %%o0, %%g0 ! Set the SPARC carry flag, if X set\n"
" addxcc %2, %3, %0\n"
" ldub [%1], %%o0 ! retreive the old NZVC flags\n"
" and %%o0, 0x04, %%o0 ! but keep only Z flag\n"
" addx %%o0, %%g0, %%o0 ! X,C flags\n"
" bl,a .+8\n"
" or %%o0, 0x08, %%o0 ! N flag\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0 ! V flag\n"
" bnz,a .+8\n"
" and %%o0, 0x0B, %%o0 ! Z flag cleared if result is non-zero\n"
" stb %%o0, [%1]\n"
" stb %%o0, [%1 + 1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0"
);
return value;
}
#endif /* SPARC_V8_ASSEMBLY */
#ifdef SPARC_V9_ASSEMBLY
static inline uae_u32 sparc_v9_flag_add_8(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" sll %2, 24, %%o0\n"
" sll %3, 24, %%o1\n"
" addcc %%o0, %%o1, %%o0\n"
" rd %%ccr, %%o1\n"
" srl %%o0, 24, %0\n"
" stb %%o1, [%1]\n"
" stb %%o1, [%1+1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
static inline uae_u32 sparc_v9_flag_add_16(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" sll %2, 16, %%o0\n"
" sll %3, 16, %%o1\n"
" addcc %%o0, %%o1, %%o0\n"
" rd %%ccr, %%o1\n"
" srl %%o0, 16, %0\n"
" stb %%o1, [%1]\n"
" stb %%o1, [%1+1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
static inline uae_u32 sparc_v9_flag_add_32(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" addcc %2, %3, %0\n"
" rd %%ccr, %%o0\n"
" stb %%o0, [%1]\n"
" stb %%o0, [%1+1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0"
);
return value;
}
static inline uae_u32 sparc_v9_flag_sub_8(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" sll %2, 24, %%o0\n"
" sll %3, 24, %%o1\n"
" subcc %%o0, %%o1, %%o0\n"
" rd %%ccr, %%o1\n"
" srl %%o0, 24, %0\n"
" stb %%o1, [%1]\n"
" stb %%o1, [%1+1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
static inline uae_u32 sparc_v9_flag_sub_16(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" sll %2, 16, %%o0\n"
" sll %3, 16, %%o1\n"
" subcc %%o0, %%o1, %%o0\n"
" rd %%ccr, %%o1\n"
" srl %%o0, 16, %0\n"
" stb %%o1, [%1]\n"
" stb %%o1, [%1+1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
static inline uae_u32 sparc_v9_flag_sub_32(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" subcc %2, %3, %0\n"
" rd %%ccr, %%o0\n"
" stb %%o0, [%1]\n"
" stb %%o0, [%1+1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0"
);
return value;
}
static inline void sparc_v9_flag_cmp_8(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
__asm__ ("\n"
" sll %1, 24, %%o0\n"
" sll %2, 24, %%o1\n"
" subcc %%o0, %%o1, %%g0\n"
" rd %%ccr, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
}
static inline void sparc_v9_flag_cmp_16(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
__asm__ ("\n"
" sll %1, 16, %%o0\n"
" sll %2, 16, %%o1\n"
" subcc %%o0, %%o1, %%g0\n"
" rd %%ccr, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
}
static inline void sparc_v9_flag_cmp_32(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
__asm__ ("\n"
" subcc %1, %2, %%g0\n"
#if 0
" subcc %1, %2, %%o1\n"
" srl %%o1, 31, %%o0\n"
" sll %%o0, 3, %%o0\n"
" addx %%o0, %%g0, %%o0\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0\n"
" subcc %%g0, %%o1, %%g0\n"
" addx %%g0, 7, %%o1\n"
" and %%o1, 0x04, %%o1\n"
" or %%o0, %%o1, %%o0\n"
#endif
#if 0
" subcc %1, %2, %%o1\n"
" srl %%o1, 31, %%o0\n"
" sll %%o0, 3, %%o0\n"
" addx %%o0, %%g0, %%o0\n"
" bvs,pt,a .+8\n"
" or %%o0, 0x02, %%o0\n"
" subcc %%g0, %%o1, %%g0\n"
" addx %%g0, 7, %%o1\n"
" and %%o1, 0x04, %%o1\n"
" or %%o0, %%o1, %%o0\n"
" stb %%o0, [%0]\n"
#endif
" rd %%ccr, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
}
#if 1
static inline void sparc_v9_flag_test_8(flag_struct *flags, uae_u32 val)
{
__asm__ ("\n"
" sll %1, 24, %%o0\n"
" subcc %%o0, %%g0, %%g0\n"
" rd %%ccr, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (val)
: "cc", "o0"
);
}
static inline void sparc_v9_flag_test_16(flag_struct *flags, uae_u32 val)
{
__asm__ ("\n"
" sll %1, 16, %%o0\n"
" subcc %%o0, %%g0, %%g0\n"
" rd %%ccr, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (val)
: "cc", "o0"
);
}
static inline void sparc_v9_flag_test_32(flag_struct *flags, uae_u32 val)
{
__asm__ ("\n"
" subcc %1, %%g0, %%g0\n"
" rd %%ccr, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (val)
: "cc", "o0"
);
}
#else
static inline void sparc_v9_flag_test_8(flag_struct *flags, uae_u32 val)
{
__asm__ ("\n"
" sll %1, 24, %%o0\n"
" subcc %%o0, %%g0, %%o1\n"
" srl %%o1, 31, %%o0\n"
" sll %%o0, 3, %%o0\n"
" addx %%o0, %%g0, %%o0\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0\n"
" subcc %%g0, %%o1, %%g0\n"
" addx %%g0, 7, %%o1\n"
" and %%o1, 0x04, %%o1\n"
" or %%o0, %%o1, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (val)
: "cc", "o0", "o1"
);
}
static inline void sparc_v9_flag_test_16(flag_struct *flags, uae_u32 val)
{
__asm__ ("\n"
" sll %1, 16, %%o0\n"
" subcc %%o0, %%g0, %%o1\n"
" srl %%o1, 31, %%o0\n"
" sll %%o0, 3, %%o0\n"
" addx %%o0, %%g0, %%o0\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0\n"
" subcc %%g0, %%o1, %%g0\n"
" addx %%g0, 7, %%o1\n"
" and %%o1, 0x04, %%o1\n"
" or %%o0, %%o1, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (val)
: "cc", "o0", "o1"
);
}
static inline void sparc_v9_flag_test_32(flag_struct *flags, uae_u32 val)
{
__asm__ ("\n"
" subcc %1, %%g0, %%o1\n"
" srl %%o1, 31, %%o0\n"
" sll %%o0, 3, %%o0\n"
" addx %%o0, %%g0, %%o0\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0\n"
" subcc %%g0, %%o1, %%g0\n"
" addx %%g0, 7, %%o1\n"
" and %%o1, 0x04, %%o1\n"
" or %%o0, %%o1, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (val)
: "cc", "o0", "o1"
);
}
#endif
static inline uae_u32 sparc_v9_flag_addx_8(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" ldub [%1 + 1], %%o1 ! Get the X Flag\n"
" subcc %%g0, %%o1, %%g0 ! Set the SPARC carry flag, if X set\n"
" addxcc %2, %3, %0\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
static inline uae_u32 sparc_v9_flag_addx_32(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" ldub [%1 + 1], %%o0 ! Get the X Flag\n"
" subcc %%g0, %%o0, %%g0 ! Set the SPARC carry flag, if X set\n"
" addxcc %2, %3, %0\n"
" ldub [%1], %%o0 ! retreive the old NZVC flags\n"
" and %%o0, 0x04, %%o0 ! but keep only Z flag\n"
" addx %%o0, %%g0, %%o0 ! X,C flags\n"
" bl,a .+8\n"
" or %%o0, 0x08, %%o0 ! N flag\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0 ! V flag\n"
" bnz,a .+8\n"
" and %%o0, 0x0B, %%o0 ! Z flag cleared if result is non-zero\n"
" stb %%o0, [%1]\n"
" stb %%o0, [%1 + 1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0"
);
return value;
}
#endif /* SPARC_V9_ASSEMBLY */
#endif /* SPARC_ASSEMBLY__HEADER */

View File

@ -1,12 +1,17 @@
#!/bin/sh
# WHICH_SPARC
# which_sparc
#
# This script generates a program that tests for a SPARC processor class
# Program returns:
# 0 unknown SPARC processor
# 8 SPARC V8 `compliant' processor (umul instruction is legal)
# 9 SPARC V9 `compliant' processor (popc instruction is legal)
# 0 unknown SPARC processor
# 8 SPARC V8 `compliant' processor (umul instruction is legal)
# 9 SPARC V9 `compliant' processor (popc instruction is legal)
#
# The script prints:
# "unknown SPARC architecture"
# SPARC_V8
# SPARC_V9
#
# I hope this works for other machines and OS. Tested machines are:
# Sun Ultra 10 (Solaris 7), SPARC Station 5 (Solaris 2.5.1)
@ -19,7 +24,6 @@ PROG=./conftest
SOURCE=./conftest.c
if [ ! -x $PROG ]; then
echo "Compiling the test program"
cat > $SOURCE << EOF
#include <stdio.h>
#include <signal.h>
@ -107,8 +111,8 @@ fi
$PROG
case $? in
0) echo "unknown SPARC architecture";;
8) echo "SPARC V8 compliant processor";;
9) echo "SPARC V9 compliant processor";;
8) echo "SPARC_V8";;
9) echo "SPARC_V9";;
esac
rm -f $PROG

View File

@ -2495,7 +2495,6 @@ static void generate_one_opcode (int rp)
}
fprintf (stblfile, "{ op_%lx_%d, 0, %ld }, /* %s */\n", opcode, postfix, opcode, lookuptab[i].name);
fprintf (headerfile, "extern cpuop_func op_%lx_%d;\n", opcode, postfix);
/* fprintf (headerfile, "extern unsigned long REGPARAM2 op_%lx_%d(uae_u32);\n", opcode, postfix); */
printf ("unsigned long REGPARAM2 op_%lx_%d(uae_u32 opcode) /* %s */\n{\n", opcode, postfix, lookuptab[i].name);
switch (table68k[opcode].stype) {

View File

@ -6,7 +6,7 @@
* Copyright 1996 Bernd Schmidt
*/
#ifdef __i386__
#if defined(__i386__) && defined(X86_ASSEMBLY)
struct flag_struct {
unsigned int cznv;
@ -142,6 +142,651 @@ static __inline__ int cctrue(int cc)
"popl %0\n\t" \
: "=r" (regflags.cznv) : "qmi" (s), "q" (d) : "cc")
#elif defined(__sparc__) && (defined(SPARC_V8_ASSEMBLY) || defined(SPARC_V9_ASSEMBLY))
struct flag_struct {
unsigned char nzvc;
unsigned char x;
};
extern struct flag_struct regflags;
#define SET_ZFLG(y) (regflags.nzvc = (regflags.nzvc & ~0x04) | (((y) & 1) << 2))
#define SET_CFLG(y) (regflags.nzvc = (regflags.nzvc & ~1) | ((y) & 1))
#define SET_VFLG(y) (regflags.nzvc = (regflags.nzvc & ~0x02) | (((y) & 1) << 1))
#define SET_NFLG(y) (regflags.nzvc = (regflags.nzvc & ~0x08) | (((y) & 1) << 3))
#define SET_XFLG(y) (regflags.x = (y))
#define GET_ZFLG ((regflags.nzvc >> 2) & 1)
#define GET_CFLG (regflags.nzvc & 1)
#define GET_VFLG ((regflags.nzvc >> 1) & 1)
#define GET_NFLG ((regflags.nzvc >> 3) & 1)
#define GET_XFLG (regflags.x & 1)
#define CLEAR_CZNV (regflags.nzvc = 0)
#define COPY_CARRY (regflags.x = regflags.nzvc)
static __inline__ int cctrue(int cc)
{
uae_u32 nzvc = regflags.nzvc;
switch(cc){
case 0: return 1; /* T */
case 1: return 0; /* F */
case 2: return (nzvc & 0x05) == 0; /* !GET_CFLG && !GET_ZFLG; HI */
case 3: return (nzvc & 0x05) != 0; /* GET_CFLG || GET_ZFLG; LS */
case 4: return (nzvc & 1) == 0; /* !GET_CFLG; CC */
case 5: return (nzvc & 1) != 0; /* GET_CFLG; CS */
case 6: return (nzvc & 0x04) == 0; /* !GET_ZFLG; NE */
case 7: return (nzvc & 0x04) != 0; /* GET_ZFLG; EQ */
case 8: return (nzvc & 0x02) == 0;/* !GET_VFLG; VC */
case 9: return (nzvc & 0x02) != 0;/* GET_VFLG; VS */
case 10:return (nzvc & 0x08) == 0; /* !GET_NFLG; PL */
case 11:return (nzvc & 0x08) != 0; /* GET_NFLG; MI */
case 12:return (((nzvc << 2) ^ nzvc) & 0x08) == 0; /* GET_NFLG == GET_VFLG; GE */
case 13:return (((nzvc << 2) ^ nzvc) & 0x08) != 0;/* GET_NFLG != GET_VFLG; LT */
case 14:
nzvc &= 0x0e;
return (((nzvc << 2) ^ nzvc) & 0x0c) == 0; /* !GET_ZFLG && (GET_NFLG == GET_VFLG); GT */
case 15:
nzvc &= 0x0e;
return (((nzvc << 2) ^ nzvc) & 0x0c) != 0; /* GET_ZFLG || (GET_NFLG != GET_VFLG); LE */
}
return 0;
}
#ifdef SPARC_V8_ASSEMBLY
static inline uae_u32 sparc_v8_flag_add_8(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" sll %2, 24, %%o0\n"
" sll %3, 24, %%o1\n"
" addcc %%o0, %%o1, %%o0\n"
" addx %%g0, %%g0, %%o1 ! X,C flags\n"
" srl %%o0, 24, %0\n"
" stb %%o1, [%1 + 1]\n"
" bl,a .+8\n"
" or %%o1, 0x08, %%o1 ! N flag\n"
" bz,a .+8\n"
" or %%o1, 0x04, %%o1 ! Z flag\n"
" bvs,a .+8\n"
" or %%o1, 0x02, %%o1 ! V flag\n"
" stb %%o1, [%1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
static inline uae_u32 sparc_v8_flag_add_16(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" sll %2, 16, %%o0\n"
" sll %3, 16, %%o1\n"
" addcc %%o0, %%o1, %%o0\n"
" addx %%g0, %%g0, %%o1 ! X,C flags\n"
" srl %%o0, 16, %0\n"
" stb %%o1, [%1 + 1]\n"
" bl,a .+8\n"
" or %%o1, 0x08, %%o1 ! N flag\n"
" bz,a .+8\n"
" or %%o1, 0x04, %%o1 ! Z flag\n"
" bvs,a .+8\n"
" or %%o1, 0x02, %%o1 ! V flag\n"
" stb %%o1, [%1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
static inline uae_u32 sparc_v8_flag_add_32(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" addcc %2, %3, %0\n"
" addx %%g0, %%g0, %%o0 ! X,C flags\n"
" stb %%o0, [%1 + 1]\n"
" bl,a .+8\n"
" or %%o0, 0x08, %%o0 ! N flag\n"
" bz,a .+8\n"
" or %%o0, 0x04, %%o0 ! Z flag\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0 ! V flag\n"
" stb %%o0, [%1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0"
);
return value;
}
static inline uae_u32 sparc_v8_flag_sub_8(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" sll %2, 24, %%o0\n"
" sll %3, 24, %%o1\n"
" subcc %%o0, %%o1, %%o0\n"
" addx %%g0, %%g0, %%o1 ! X,C flags\n"
" srl %%o0, 24, %0\n"
" stb %%o1, [%1 + 1]\n"
" bl,a .+8\n"
" or %%o1, 0x08, %%o1 ! N flag\n"
" bz,a .+8\n"
" or %%o1, 0x04, %%o1 ! Z flag\n"
" bvs,a .+8\n"
" or %%o1, 0x02, %%o1 ! V flag\n"
" stb %%o1, [%1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
static inline uae_u32 sparc_v8_flag_sub_16(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" sll %2, 16, %%o0\n"
" sll %3, 16, %%o1\n"
" subcc %%o0, %%o1, %%o0\n"
" addx %%g0, %%g0, %%o1 ! X,C flags\n"
" srl %%o0, 16, %0\n"
" stb %%o1, [%1 + 1]\n"
" bl,a .+8\n"
" or %%o1, 0x08, %%o1 ! N flag\n"
" bz,a .+8\n"
" or %%o1, 0x04, %%o1 ! Z flag\n"
" bvs,a .+8\n"
" or %%o1, 0x02, %%o1 ! V flag\n"
" stb %%o1, [%1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
static inline uae_u32 sparc_v8_flag_sub_32(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" subcc %2, %3, %0\n"
" addx %%g0, %%g0, %%o0 ! X,C flags\n"
" stb %%o0, [%1 + 1]\n"
" bl,a .+8\n"
" or %%o0, 0x08, %%o0 ! N flag\n"
" bz,a .+8\n"
" or %%o0, 0x04, %%o0 ! Z flag\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0 ! V flag\n"
" stb %%o0, [%1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0"
);
return value;
}
static inline void sparc_v8_flag_cmp_8(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
__asm__ ("\n"
" sll %1, 24, %%o0\n"
" sll %2, 24, %%o1\n"
" subcc %%o0, %%o1, %%g0\n"
" addx %%g0, %%g0, %%o0 ! C flag\n"
" bl,a .+8\n"
" or %%o0, 0x08, %%o0 ! N flag\n"
" bz,a .+8\n"
" or %%o0, 0x04, %%o0 ! Z flag\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0 ! V flag\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
}
static inline void sparc_v8_flag_cmp_16(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
__asm__ ("\n"
" sll %1, 16, %%o0\n"
" sll %2, 16, %%o1\n"
" subcc %%o0, %%o1, %%g0\n"
" addx %%g0, %%g0, %%o0 ! C flag\n"
" bl,a .+8\n"
" or %%o0, 0x08, %%o0 ! N flag\n"
" bz,a .+8\n"
" or %%o0, 0x04, %%o0 ! Z flag\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0 ! V flag\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
}
static inline void sparc_v8_flag_cmp_32(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
__asm__ ("\n"
" subcc %1, %2, %%o1\n"
" srl %%o1, 31, %%o0\n"
" sll %%o0, 3, %%o0\n"
" addx %%o0, %%g0, %%o0\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0\n"
" subcc %%g0, %%o1, %%g0\n"
" addx %%g0, 7, %%o1\n"
" and %%o1, 0x04, %%o1\n"
" or %%o0, %%o1, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
}
static inline uae_u32 sparc_v8_flag_addx_8(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" ldub [%1 + 1], %%o1 ! Get the X Flag\n"
" subcc %%g0, %%o1, %%g0 ! Set the SPARC carry flag, if X set\n"
" addxcc %2, %3, %0\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
#if 0
VERY SLOW...
static inline uae_u32 sparc_v8_flag_addx_8(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" sll %2, 24, %%o0\n"
" sll %3, 24, %%o1\n"
" addcc %%o0, %%o1, %%o0\n"
" addx %%g0, %%g0, %%o1 ! X,C flags\n"
" bvs,a .+8\n"
" or %%o1, 0x02, %%o1 ! V flag\n"
" ldub [%1 + 1], %%o2\n"
" subcc %%g0, %%o2, %%g0\n"
" addx %%g0, %%g0, %%o2\n"
" sll %%o2, 24, %%o2\n"
" addcc %%o0, %%o2, %%o0\n"
" srl %%o0, 24, %0\n"
" addx %%g0, %%g0, %%o2\n"
" or %%o1, %%o2, %%o1 ! update X,C flags\n"
" bl,a .+8\n"
" or %%o1, 0x08, %%o1 ! N flag\n"
" ldub [%1], %%o0 ! retreive the old NZVC flags (XXX)\n"
" bvs,a .+8\n"
" or %%o1, 0x02, %%o1 ! update V flag\n"
" and %%o0, 0x04, %%o0 ! (XXX) but keep only Z flag\n"
" and %%o1, 1, %%o2 ! keep C flag in %%o2\n"
" bnz,a .+8\n"
" or %%g0, %%g0, %%o0 ! Z flag cleared if non-zero result\n"
" stb %%o2, [%1 + 1] ! store the X flag\n"
" or %%o1, %%o0, %%o1\n"
" stb %%o1, [%1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1", "o2"
);
return value;
}
#endif
static inline uae_u32 sparc_v8_flag_addx_32(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" ldub [%1 + 1], %%o0 ! Get the X Flag\n"
" subcc %%g0, %%o0, %%g0 ! Set the SPARC carry flag, if X set\n"
" addxcc %2, %3, %0\n"
" ldub [%1], %%o0 ! retreive the old NZVC flags\n"
" and %%o0, 0x04, %%o0 ! but keep only Z flag\n"
" addx %%o0, %%g0, %%o0 ! X,C flags\n"
" bl,a .+8\n"
" or %%o0, 0x08, %%o0 ! N flag\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0 ! V flag\n"
" bnz,a .+8\n"
" and %%o0, 0x0B, %%o0 ! Z flag cleared if result is non-zero\n"
" stb %%o0, [%1]\n"
" stb %%o0, [%1 + 1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0"
);
return value;
}
#endif /* SPARC_V8_ASSEMBLY */
#ifdef SPARC_V9_ASSEMBLY
static inline uae_u32 sparc_v9_flag_add_8(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" sll %2, 24, %%o0\n"
" sll %3, 24, %%o1\n"
" addcc %%o0, %%o1, %%o0\n"
" rd %%ccr, %%o1\n"
" srl %%o0, 24, %0\n"
" stb %%o1, [%1]\n"
" stb %%o1, [%1+1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
static inline uae_u32 sparc_v9_flag_add_16(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" sll %2, 16, %%o0\n"
" sll %3, 16, %%o1\n"
" addcc %%o0, %%o1, %%o0\n"
" rd %%ccr, %%o1\n"
" srl %%o0, 16, %0\n"
" stb %%o1, [%1]\n"
" stb %%o1, [%1+1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
static inline uae_u32 sparc_v9_flag_add_32(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" addcc %2, %3, %0\n"
" rd %%ccr, %%o0\n"
" stb %%o0, [%1]\n"
" stb %%o0, [%1+1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0"
);
return value;
}
static inline uae_u32 sparc_v9_flag_sub_8(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" sll %2, 24, %%o0\n"
" sll %3, 24, %%o1\n"
" subcc %%o0, %%o1, %%o0\n"
" rd %%ccr, %%o1\n"
" srl %%o0, 24, %0\n"
" stb %%o1, [%1]\n"
" stb %%o1, [%1+1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
static inline uae_u32 sparc_v9_flag_sub_16(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" sll %2, 16, %%o0\n"
" sll %3, 16, %%o1\n"
" subcc %%o0, %%o1, %%o0\n"
" rd %%ccr, %%o1\n"
" srl %%o0, 16, %0\n"
" stb %%o1, [%1]\n"
" stb %%o1, [%1+1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
static inline uae_u32 sparc_v9_flag_sub_32(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" subcc %2, %3, %0\n"
" rd %%ccr, %%o0\n"
" stb %%o0, [%1]\n"
" stb %%o0, [%1+1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0"
);
return value;
}
static inline void sparc_v9_flag_cmp_8(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
__asm__ ("\n"
" sll %1, 24, %%o0\n"
" sll %2, 24, %%o1\n"
" subcc %%o0, %%o1, %%g0\n"
" rd %%ccr, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
}
static inline void sparc_v9_flag_cmp_16(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
__asm__ ("\n"
" sll %1, 16, %%o0\n"
" sll %2, 16, %%o1\n"
" subcc %%o0, %%o1, %%g0\n"
" rd %%ccr, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
}
static inline void sparc_v9_flag_cmp_32(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
__asm__ ("\n"
" subcc %1, %2, %%g0\n"
#if 0
" subcc %1, %2, %%o1\n"
" srl %%o1, 31, %%o0\n"
" sll %%o0, 3, %%o0\n"
" addx %%o0, %%g0, %%o0\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0\n"
" subcc %%g0, %%o1, %%g0\n"
" addx %%g0, 7, %%o1\n"
" and %%o1, 0x04, %%o1\n"
" or %%o0, %%o1, %%o0\n"
#endif
#if 0
" subcc %1, %2, %%o1\n"
" srl %%o1, 31, %%o0\n"
" sll %%o0, 3, %%o0\n"
" addx %%o0, %%g0, %%o0\n"
" bvs,pt,a .+8\n"
" or %%o0, 0x02, %%o0\n"
" subcc %%g0, %%o1, %%g0\n"
" addx %%g0, 7, %%o1\n"
" and %%o1, 0x04, %%o1\n"
" or %%o0, %%o1, %%o0\n"
" stb %%o0, [%0]\n"
#endif
" rd %%ccr, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
}
#if 1
static inline void sparc_v9_flag_test_8(flag_struct *flags, uae_u32 val)
{
__asm__ ("\n"
" sll %1, 24, %%o0\n"
" subcc %%o0, %%g0, %%g0\n"
" rd %%ccr, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (val)
: "cc", "o0"
);
}
static inline void sparc_v9_flag_test_16(flag_struct *flags, uae_u32 val)
{
__asm__ ("\n"
" sll %1, 16, %%o0\n"
" subcc %%o0, %%g0, %%g0\n"
" rd %%ccr, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (val)
: "cc", "o0"
);
}
static inline void sparc_v9_flag_test_32(flag_struct *flags, uae_u32 val)
{
__asm__ ("\n"
" subcc %1, %%g0, %%g0\n"
" rd %%ccr, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (val)
: "cc", "o0"
);
}
#else
static inline void sparc_v9_flag_test_8(flag_struct *flags, uae_u32 val)
{
__asm__ ("\n"
" sll %1, 24, %%o0\n"
" subcc %%o0, %%g0, %%o1\n"
" srl %%o1, 31, %%o0\n"
" sll %%o0, 3, %%o0\n"
" addx %%o0, %%g0, %%o0\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0\n"
" subcc %%g0, %%o1, %%g0\n"
" addx %%g0, 7, %%o1\n"
" and %%o1, 0x04, %%o1\n"
" or %%o0, %%o1, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (val)
: "cc", "o0", "o1"
);
}
static inline void sparc_v9_flag_test_16(flag_struct *flags, uae_u32 val)
{
__asm__ ("\n"
" sll %1, 16, %%o0\n"
" subcc %%o0, %%g0, %%o1\n"
" srl %%o1, 31, %%o0\n"
" sll %%o0, 3, %%o0\n"
" addx %%o0, %%g0, %%o0\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0\n"
" subcc %%g0, %%o1, %%g0\n"
" addx %%g0, 7, %%o1\n"
" and %%o1, 0x04, %%o1\n"
" or %%o0, %%o1, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (val)
: "cc", "o0", "o1"
);
}
static inline void sparc_v9_flag_test_32(flag_struct *flags, uae_u32 val)
{
__asm__ ("\n"
" subcc %1, %%g0, %%o1\n"
" srl %%o1, 31, %%o0\n"
" sll %%o0, 3, %%o0\n"
" addx %%o0, %%g0, %%o0\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0\n"
" subcc %%g0, %%o1, %%g0\n"
" addx %%g0, 7, %%o1\n"
" and %%o1, 0x04, %%o1\n"
" or %%o0, %%o1, %%o0\n"
" stb %%o0, [%0]\n"
: /* no outputs */
: "r" (flags), "r" (val)
: "cc", "o0", "o1"
);
}
#endif
static inline uae_u32 sparc_v9_flag_addx_8(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" ldub [%1 + 1], %%o1 ! Get the X Flag\n"
" subcc %%g0, %%o1, %%g0 ! Set the SPARC carry flag, if X set\n"
" addxcc %2, %3, %0\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0", "o1"
);
return value;
}
static inline uae_u32 sparc_v9_flag_addx_32(flag_struct *flags, uae_u32 src, uae_u32 dst)
{
uae_u32 value;
__asm__ ("\n"
" ldub [%1 + 1], %%o0 ! Get the X Flag\n"
" subcc %%g0, %%o0, %%g0 ! Set the SPARC carry flag, if X set\n"
" addxcc %2, %3, %0\n"
" ldub [%1], %%o0 ! retreive the old NZVC flags\n"
" and %%o0, 0x04, %%o0 ! but keep only Z flag\n"
" addx %%o0, %%g0, %%o0 ! X,C flags\n"
" bl,a .+8\n"
" or %%o0, 0x08, %%o0 ! N flag\n"
" bvs,a .+8\n"
" or %%o0, 0x02, %%o0 ! V flag\n"
" bnz,a .+8\n"
" and %%o0, 0x0B, %%o0 ! Z flag cleared if result is non-zero\n"
" stb %%o0, [%1]\n"
" stb %%o0, [%1 + 1]\n"
: "=&r" (value)
: "r" (flags), "r" (dst), "r" (src)
: "cc", "o0"
);
return value;
}
#endif /* SPARC_V9_ASSEMBLY */
#else
struct flag_struct {