| 145 |
|
#elif defined(__sparc__) && (defined(SPARC_V8_ASSEMBLY) || defined(SPARC_V9_ASSEMBLY)) |
| 146 |
|
|
| 147 |
|
struct flag_struct { |
| 148 |
< |
unsigned char nzvc; |
| 149 |
< |
unsigned char x; |
| 148 |
> |
union { |
| 149 |
> |
unsigned short all; |
| 150 |
> |
unsigned char bytes[2]; |
| 151 |
> |
}; |
| 152 |
|
}; |
| 153 |
|
|
| 154 |
< |
extern struct flag_struct regflags; |
| 154 |
> |
typedef unsigned short * flags_addr; |
| 155 |
> |
extern struct flag_struct regflags; |
| 156 |
> |
#define M68K_FLAGS_ADDR ((flags_addr)(®flags.all)) |
| 157 |
> |
#define M68K_FLAGS_NZVC regflags.bytes[1] |
| 158 |
> |
#define M68K_FLAGS_X regflags.bytes[0] |
| 159 |
|
|
| 160 |
< |
#define SET_ZFLG(y) (regflags.nzvc = (regflags.nzvc & ~0x04) | (((y) & 1) << 2)) |
| 161 |
< |
#define SET_CFLG(y) (regflags.nzvc = (regflags.nzvc & ~1) | ((y) & 1)) |
| 162 |
< |
#define SET_VFLG(y) (regflags.nzvc = (regflags.nzvc & ~0x02) | (((y) & 1) << 1)) |
| 163 |
< |
#define SET_NFLG(y) (regflags.nzvc = (regflags.nzvc & ~0x08) | (((y) & 1) << 3)) |
| 164 |
< |
#define SET_XFLG(y) (regflags.x = (y)) |
| 165 |
< |
|
| 166 |
< |
#define GET_ZFLG ((regflags.nzvc >> 2) & 1) |
| 167 |
< |
#define GET_CFLG (regflags.nzvc & 1) |
| 168 |
< |
#define GET_VFLG ((regflags.nzvc >> 1) & 1) |
| 169 |
< |
#define GET_NFLG ((regflags.nzvc >> 3) & 1) |
| 170 |
< |
#define GET_XFLG (regflags.x & 1) |
| 160 |
> |
#if 0 |
| 161 |
> |
|
| 162 |
> |
#define SET_ZFLG(y) (M68K_FLAGS_NZVC = (M68K_FLAGS_NZVC & ~0x01) | ((y) & 1)) |
| 163 |
> |
#define SET_CFLG(y) (M68K_FLAGS_NZVC = (M68K_FLAGS_NZVC & ~0x02) | (((y) & 1) << 1)) |
| 164 |
> |
#define SET_XFLG(y) (M68K_FLAGS_X = ((y) & 1) << 1) |
| 165 |
> |
#define SET_VFLG(y) (M68K_FLAGS_NZVC = (M68K_FLAGS_NZVC & ~0x10) | (((y) & 1) << 4)) |
| 166 |
> |
#define SET_NFLG(y) (M68K_FLAGS_NZVC = (M68K_FLAGS_NZVC & ~0x80) | (((y) & 1) << 7)) |
| 167 |
> |
|
| 168 |
> |
#define GET_ZFLG (M68K_FLAGS_NZVC & 1) |
| 169 |
> |
#define GET_CFLG ((M68K_FLAGS_NZVC >> 1) & 1) |
| 170 |
> |
#define GET_XFLG ((M68K_FLAGS_X >> 1) & 1) |
| 171 |
> |
#define GET_VFLG ((M68K_FLAGS_NZVC >> 4) & 1) |
| 172 |
> |
#define GET_NFLG ((M68K_FLAGS_NZVC >> 7) & 1) |
| 173 |
> |
|
| 174 |
> |
#define CLEAR_CZNV (M68K_FLAGS_NZVC = 0) |
| 175 |
> |
#define COPY_CARRY (M68K_FLAGS_X = M68K_FLAGS_NZVC) |
| 176 |
> |
|
| 177 |
> |
#else |
| 178 |
> |
|
| 179 |
> |
#define M68K_FLAGS_ALL regflags.all |
| 180 |
> |
|
| 181 |
> |
#define SET_ZFLG(y) (M68K_FLAGS_ALL = (M68K_FLAGS_ALL & ~0x01) | ((y) & 1)) |
| 182 |
> |
#define SET_CFLG(y) (M68K_FLAGS_ALL = (M68K_FLAGS_ALL & ~0x02) | (((y) & 1) << 1)) |
| 183 |
> |
#define SET_XFLG(y) (M68K_FLAGS_ALL = (M68K_FLAGS_ALL & ~0x200)| (((y) & 1) << 9)) |
| 184 |
> |
#define SET_VFLG(y) (M68K_FLAGS_ALL = (M68K_FLAGS_ALL & ~0x10) | (((y) & 1) << 4)) |
| 185 |
> |
#define SET_NFLG(y) (M68K_FLAGS_ALL = (M68K_FLAGS_ALL & ~0x80) | (((y) & 1) << 7)) |
| 186 |
> |
|
| 187 |
> |
#define GET_ZFLG (M68K_FLAGS_ALL & 1) |
| 188 |
> |
#define GET_CFLG ((M68K_FLAGS_ALL >> 1) & 1) |
| 189 |
> |
#define GET_XFLG ((M68K_FLAGS_ALL >> 9) & 1) |
| 190 |
> |
#define GET_VFLG ((M68K_FLAGS_ALL >> 4) & 1) |
| 191 |
> |
#define GET_NFLG ((M68K_FLAGS_ALL >> 7) & 1) |
| 192 |
> |
|
| 193 |
> |
#define CLEAR_CZNV (M68K_FLAGS_NZVC = 0) |
| 194 |
> |
#define COPY_CARRY (M68K_FLAGS_X = M68K_FLAGS_NZVC) |
| 195 |
|
|
| 196 |
< |
#define CLEAR_CZNV (regflags.nzvc = 0) |
| 167 |
< |
#define COPY_CARRY (regflags.x = regflags.nzvc) |
| 196 |
> |
#endif |
| 197 |
|
|
| 198 |
|
static __inline__ int cctrue(int cc) |
| 199 |
|
{ |
| 200 |
< |
uae_u32 nzvc = regflags.nzvc; |
| 200 |
> |
uae_u32 nzvc = M68K_FLAGS_NZVC; |
| 201 |
|
switch(cc){ |
| 202 |
< |
case 0: return 1; /* T */ |
| 203 |
< |
case 1: return 0; /* F */ |
| 204 |
< |
case 2: return (nzvc & 0x05) == 0; /* !GET_CFLG && !GET_ZFLG; HI */ |
| 205 |
< |
case 3: return (nzvc & 0x05) != 0; /* GET_CFLG || GET_ZFLG; LS */ |
| 206 |
< |
case 4: return (nzvc & 1) == 0; /* !GET_CFLG; CC */ |
| 207 |
< |
case 5: return (nzvc & 1) != 0; /* GET_CFLG; CS */ |
| 208 |
< |
case 6: return (nzvc & 0x04) == 0; /* !GET_ZFLG; NE */ |
| 209 |
< |
case 7: return (nzvc & 0x04) != 0; /* GET_ZFLG; EQ */ |
| 210 |
< |
case 8: return (nzvc & 0x02) == 0;/* !GET_VFLG; VC */ |
| 211 |
< |
case 9: return (nzvc & 0x02) != 0;/* GET_VFLG; VS */ |
| 212 |
< |
case 10:return (nzvc & 0x08) == 0; /* !GET_NFLG; PL */ |
| 213 |
< |
case 11:return (nzvc & 0x08) != 0; /* GET_NFLG; MI */ |
| 214 |
< |
case 12:return (((nzvc << 2) ^ nzvc) & 0x08) == 0; /* GET_NFLG == GET_VFLG; GE */ |
| 215 |
< |
case 13:return (((nzvc << 2) ^ nzvc) & 0x08) != 0;/* GET_NFLG != GET_VFLG; LT */ |
| 202 |
> |
case 0: return 1; /* T */ |
| 203 |
> |
case 1: return 0; /* F */ |
| 204 |
> |
case 2: return (nzvc & 0x03) == 0; /* !GET_CFLG && !GET_ZFLG; HI */ |
| 205 |
> |
case 3: return (nzvc & 0x03) != 0; /* GET_CFLG || GET_ZFLG; LS */ |
| 206 |
> |
case 4: return (nzvc & 0x02) == 0; /* !GET_CFLG; CC */ |
| 207 |
> |
case 5: return (nzvc & 0x02) != 0; /* GET_CFLG; CS */ |
| 208 |
> |
case 6: return (nzvc & 0x01) == 0; /* !GET_ZFLG; NE */ |
| 209 |
> |
case 7: return (nzvc & 0x01) != 0; /* GET_ZFLG; EQ */ |
| 210 |
> |
case 8: return (nzvc & 0x10) == 0; /* !GET_VFLG; VC */ |
| 211 |
> |
case 9: return (nzvc & 0x10) != 0; /* GET_VFLG; VS */ |
| 212 |
> |
case 10:return (nzvc & 0x80) == 0; /* !GET_NFLG; PL */ |
| 213 |
> |
case 11:return (nzvc & 0x80) != 0; /* GET_NFLG; MI */ |
| 214 |
> |
case 12:return (((nzvc << 3) ^ nzvc) & 0x80) == 0; /* GET_NFLG == GET_VFLG; GE */ |
| 215 |
> |
case 13:return (((nzvc << 3) ^ nzvc) & 0x80) != 0; /* GET_NFLG != GET_VFLG; LT */ |
| 216 |
|
case 14: |
| 217 |
< |
nzvc &= 0x0e; |
| 218 |
< |
return (((nzvc << 2) ^ nzvc) & 0x0c) == 0; /* !GET_ZFLG && (GET_NFLG == GET_VFLG); GT */ |
| 217 |
> |
/* N--V--CZ shifted by 3 leads to V--CZ--- */ |
| 218 |
> |
return (((nzvc << 3) ^ nzvc) & 0x88) == 0; /* !GET_ZFLG && (GET_NFLG == GET_VFLG); GT */ |
| 219 |
|
case 15: |
| 220 |
< |
nzvc &= 0x0e; |
| 192 |
< |
return (((nzvc << 2) ^ nzvc) & 0x0c) != 0; /* GET_ZFLG || (GET_NFLG != GET_VFLG); LE */ |
| 220 |
> |
return (((nzvc << 3) ^ nzvc) & 0x88) != 0; /* GET_ZFLG || (GET_NFLG != GET_VFLG); LE */ |
| 221 |
|
} |
| 222 |
|
return 0; |
| 223 |
|
} |
| 224 |
|
|
| 225 |
|
#ifdef SPARC_V8_ASSEMBLY |
| 226 |
|
|
| 227 |
< |
static inline uae_u32 sparc_v8_flag_add_8(flag_struct *flags, uae_u32 src, uae_u32 dst) |
| 227 |
> |
static inline char *str_flags(void) |
| 228 |
> |
{ |
| 229 |
> |
static char str[8]; |
| 230 |
> |
sprintf(str, "%c%c%c%c%c", |
| 231 |
> |
GET_XFLG ? 'X' : '-', |
| 232 |
> |
GET_NFLG ? 'N' : '-', |
| 233 |
> |
GET_ZFLG ? 'Z' : '-', |
| 234 |
> |
GET_VFLG ? 'V' : '-', |
| 235 |
> |
GET_CFLG ? 'C' : '-' |
| 236 |
> |
); |
| 237 |
> |
return str; |
| 238 |
> |
} |
| 239 |
> |
|
| 240 |
> |
static inline uae_u32 sparc_v8_flag_add_8(flags_addr pflags, uae_u32 src, uae_u32 dst) |
| 241 |
|
{ |
| 242 |
|
uae_u32 value; |
| 243 |
|
__asm__ ("\n" |
| 244 |
|
" sll %2, 24, %%o0\n" |
| 245 |
|
" sll %3, 24, %%o1\n" |
| 246 |
|
" addcc %%o0, %%o1, %%o0\n" |
| 247 |
< |
" addx %%g0, %%g0, %%o1 ! X,C flags\n" |
| 248 |
< |
" srl %%o0, 24, %0\n" |
| 249 |
< |
" stb %%o1, [%1 + 1]\n" |
| 250 |
< |
" bl,a .+8\n" |
| 251 |
< |
" or %%o1, 0x08, %%o1 ! N flag\n" |
| 252 |
< |
" bz,a .+8\n" |
| 253 |
< |
" or %%o1, 0x04, %%o1 ! Z flag\n" |
| 247 |
> |
" subx %%g0, %%g0, %%o1\n" |
| 248 |
> |
" srl %%o0, 24, %0 ! 8-bit result\n" |
| 249 |
> |
" and %%o1, 0x202, %%o1 ! X, C flags\n" |
| 250 |
> |
" and %0, 0x80, %%o0\n" |
| 251 |
> |
" or %%o1, %%o0, %%o1 ! N flag\n" |
| 252 |
> |
" subcc %%g0, %0, %%g0\n" |
| 253 |
> |
" subx %%o1, -1, %%o1 ! Z flag\n" |
| 254 |
|
" bvs,a .+8\n" |
| 255 |
< |
" or %%o1, 0x02, %%o1 ! V flag\n" |
| 256 |
< |
" stb %%o1, [%1]\n" |
| 255 |
> |
" or %%o1, 0x10, %%o1 ! V flag\n" |
| 256 |
> |
" sth %%o1, [%1]\n" |
| 257 |
|
: "=&r" (value) |
| 258 |
< |
: "r" (flags), "r" (dst), "r" (src) |
| 258 |
> |
: "r" (pflags), "r" (dst), "r" (src), "0" (value) |
| 259 |
|
: "cc", "o0", "o1" |
| 260 |
|
); |
| 261 |
+ |
|
| 262 |
+ |
// printf("%d + %d = %d (flags = %s)\n", dst, src, value, str_flags()); |
| 263 |
|
return value; |
| 264 |
|
} |
| 265 |
|
|
| 266 |
< |
static inline uae_u32 sparc_v8_flag_add_16(flag_struct *flags, uae_u32 src, uae_u32 dst) |
| 266 |
> |
static inline uae_u32 sparc_v8_flag_add_16(flags_addr pflags, uae_u32 src, uae_u32 dst) |
| 267 |
|
{ |
| 268 |
|
uae_u32 value; |
| 269 |
|
__asm__ ("\n" |
| 270 |
|
" sll %2, 16, %%o0\n" |
| 271 |
|
" sll %3, 16, %%o1\n" |
| 272 |
|
" addcc %%o0, %%o1, %%o0\n" |
| 273 |
< |
" addx %%g0, %%g0, %%o1 ! X,C flags\n" |
| 274 |
< |
" srl %%o0, 16, %0\n" |
| 275 |
< |
" stb %%o1, [%1 + 1]\n" |
| 276 |
< |
" bl,a .+8\n" |
| 277 |
< |
" or %%o1, 0x08, %%o1 ! N flag\n" |
| 278 |
< |
" bz,a .+8\n" |
| 279 |
< |
" or %%o1, 0x04, %%o1 ! Z flag\n" |
| 273 |
> |
" subx %%g0, %%g0, %%o1\n" |
| 274 |
> |
" srl %%o0, 16, %0 ! 16-bit result\n" |
| 275 |
> |
" and %%o1, 0x202, %%o1 ! X, C flags\n" |
| 276 |
> |
" sra %%o0, 24, %%o0\n" |
| 277 |
> |
" and %%o0, 0x80, %%o0\n" |
| 278 |
> |
" or %%o1, %%o0, %%o1 ! N flag\n" |
| 279 |
> |
" subcc %%g0, %0, %%g0\n" |
| 280 |
> |
" subx %%o1, -1, %%o1 ! Z flag\n" |
| 281 |
|
" bvs,a .+8\n" |
| 282 |
< |
" or %%o1, 0x02, %%o1 ! V flag\n" |
| 283 |
< |
" stb %%o1, [%1]\n" |
| 282 |
> |
" or %%o1, 0x10, %%o1 ! V flag\n" |
| 283 |
> |
" sth %%o1, [%1]\n" |
| 284 |
|
: "=&r" (value) |
| 285 |
< |
: "r" (flags), "r" (dst), "r" (src) |
| 285 |
> |
: "r" (pflags), "r" (dst), "r" (src), "0" (value) |
| 286 |
|
: "cc", "o0", "o1" |
| 287 |
|
); |
| 288 |
|
return value; |
| 289 |
|
} |
| 290 |
|
|
| 291 |
< |
static inline uae_u32 sparc_v8_flag_add_32(flag_struct *flags, uae_u32 src, uae_u32 dst) |
| 291 |
> |
static inline uae_u32 sparc_v8_flag_add_32(flags_addr pflags, uae_u32 src, uae_u32 dst) |
| 292 |
|
{ |
| 293 |
|
uae_u32 value; |
| 294 |
|
__asm__ ("\n" |
| 295 |
|
" addcc %2, %3, %0\n" |
| 296 |
< |
" addx %%g0, %%g0, %%o0 ! X,C flags\n" |
| 297 |
< |
" stb %%o0, [%1 + 1]\n" |
| 298 |
< |
" bl,a .+8\n" |
| 299 |
< |
" or %%o0, 0x08, %%o0 ! N flag\n" |
| 300 |
< |
" bz,a .+8\n" |
| 301 |
< |
" or %%o0, 0x04, %%o0 ! Z flag\n" |
| 296 |
> |
" subx %%g0, %%g0, %%o0\n" |
| 297 |
> |
" sra %0, 24, %%o1\n" |
| 298 |
> |
" and %%o0, 0x202, %%o0 ! X, C flags\n" |
| 299 |
> |
" and %%o1, 0x80, %%o1\n" |
| 300 |
> |
" or %%o0, %%o1, %%o0 ! N flag\n" |
| 301 |
> |
" subcc %%g0, %0, %%g0\n" |
| 302 |
> |
" subx %%o0, -1, %%o0 ! Z flag\n" |
| 303 |
|
" bvs,a .+8\n" |
| 304 |
< |
" or %%o0, 0x02, %%o0 ! V flag\n" |
| 305 |
< |
" stb %%o0, [%1]\n" |
| 304 |
> |
" or %%o0, 0x10, %%o0 ! V flag\n" |
| 305 |
> |
" sth %%o0, [%1]\n" |
| 306 |
|
: "=&r" (value) |
| 307 |
< |
: "r" (flags), "r" (dst), "r" (src) |
| 308 |
< |
: "cc", "o0" |
| 307 |
> |
: "r" (pflags), "r" (dst), "r" (src), "0" (value) |
| 308 |
> |
: "cc", "o0", "o1" |
| 309 |
|
); |
| 310 |
|
return value; |
| 311 |
|
} |
| 439 |
|
); |
| 440 |
|
} |
| 441 |
|
|
| 397 |
– |
static inline uae_u32 sparc_v8_flag_addx_8(flag_struct *flags, uae_u32 src, uae_u32 dst) |
| 398 |
– |
{ |
| 399 |
– |
uae_u32 value; |
| 400 |
– |
__asm__ ("\n" |
| 401 |
– |
" ldub [%1 + 1], %%o1 ! Get the X Flag\n" |
| 402 |
– |
" subcc %%g0, %%o1, %%g0 ! Set the SPARC carry flag, if X set\n" |
| 403 |
– |
" addxcc %2, %3, %0\n" |
| 404 |
– |
: "=&r" (value) |
| 405 |
– |
: "r" (flags), "r" (dst), "r" (src) |
| 406 |
– |
: "cc", "o0", "o1" |
| 407 |
– |
); |
| 408 |
– |
return value; |
| 409 |
– |
} |
| 410 |
– |
|
| 411 |
– |
#if 0 |
| 412 |
– |
VERY SLOW... |
| 413 |
– |
static inline uae_u32 sparc_v8_flag_addx_8(flag_struct *flags, uae_u32 src, uae_u32 dst) |
| 414 |
– |
{ |
| 415 |
– |
uae_u32 value; |
| 416 |
– |
__asm__ ("\n" |
| 417 |
– |
" sll %2, 24, %%o0\n" |
| 418 |
– |
" sll %3, 24, %%o1\n" |
| 419 |
– |
" addcc %%o0, %%o1, %%o0\n" |
| 420 |
– |
" addx %%g0, %%g0, %%o1 ! X,C flags\n" |
| 421 |
– |
" bvs,a .+8\n" |
| 422 |
– |
" or %%o1, 0x02, %%o1 ! V flag\n" |
| 423 |
– |
" ldub [%1 + 1], %%o2\n" |
| 424 |
– |
" subcc %%g0, %%o2, %%g0\n" |
| 425 |
– |
" addx %%g0, %%g0, %%o2\n" |
| 426 |
– |
" sll %%o2, 24, %%o2\n" |
| 427 |
– |
" addcc %%o0, %%o2, %%o0\n" |
| 428 |
– |
" srl %%o0, 24, %0\n" |
| 429 |
– |
" addx %%g0, %%g0, %%o2\n" |
| 430 |
– |
" or %%o1, %%o2, %%o1 ! update X,C flags\n" |
| 431 |
– |
" bl,a .+8\n" |
| 432 |
– |
" or %%o1, 0x08, %%o1 ! N flag\n" |
| 433 |
– |
" ldub [%1], %%o0 ! retreive the old NZVC flags (XXX)\n" |
| 434 |
– |
" bvs,a .+8\n" |
| 435 |
– |
" or %%o1, 0x02, %%o1 ! update V flag\n" |
| 436 |
– |
" and %%o0, 0x04, %%o0 ! (XXX) but keep only Z flag\n" |
| 437 |
– |
" and %%o1, 1, %%o2 ! keep C flag in %%o2\n" |
| 438 |
– |
" bnz,a .+8\n" |
| 439 |
– |
" or %%g0, %%g0, %%o0 ! Z flag cleared if non-zero result\n" |
| 440 |
– |
" stb %%o2, [%1 + 1] ! store the X flag\n" |
| 441 |
– |
" or %%o1, %%o0, %%o1\n" |
| 442 |
– |
" stb %%o1, [%1]\n" |
| 443 |
– |
: "=&r" (value) |
| 444 |
– |
: "r" (flags), "r" (dst), "r" (src) |
| 445 |
– |
: "cc", "o0", "o1", "o2" |
| 446 |
– |
); |
| 447 |
– |
return value; |
| 448 |
– |
} |
| 449 |
– |
#endif |
| 450 |
– |
|
| 451 |
– |
static inline uae_u32 sparc_v8_flag_addx_32(flag_struct *flags, uae_u32 src, uae_u32 dst) |
| 452 |
– |
{ |
| 453 |
– |
uae_u32 value; |
| 454 |
– |
__asm__ ("\n" |
| 455 |
– |
" ldub [%1 + 1], %%o0 ! Get the X Flag\n" |
| 456 |
– |
" subcc %%g0, %%o0, %%g0 ! Set the SPARC carry flag, if X set\n" |
| 457 |
– |
" addxcc %2, %3, %0\n" |
| 458 |
– |
" ldub [%1], %%o0 ! retreive the old NZVC flags\n" |
| 459 |
– |
" and %%o0, 0x04, %%o0 ! but keep only Z flag\n" |
| 460 |
– |
" addx %%o0, %%g0, %%o0 ! X,C flags\n" |
| 461 |
– |
" bl,a .+8\n" |
| 462 |
– |
" or %%o0, 0x08, %%o0 ! N flag\n" |
| 463 |
– |
" bvs,a .+8\n" |
| 464 |
– |
" or %%o0, 0x02, %%o0 ! V flag\n" |
| 465 |
– |
" bnz,a .+8\n" |
| 466 |
– |
" and %%o0, 0x0B, %%o0 ! Z flag cleared if result is non-zero\n" |
| 467 |
– |
" stb %%o0, [%1]\n" |
| 468 |
– |
" stb %%o0, [%1 + 1]\n" |
| 469 |
– |
: "=&r" (value) |
| 470 |
– |
: "r" (flags), "r" (dst), "r" (src) |
| 471 |
– |
: "cc", "o0" |
| 472 |
– |
); |
| 473 |
– |
return value; |
| 474 |
– |
} |
| 475 |
– |
|
| 442 |
|
#endif /* SPARC_V8_ASSEMBLY */ |
| 443 |
|
|
| 444 |
|
#ifdef SPARC_V9_ASSEMBLY |
