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2 * dyngen defines for micro operation code
4 * Copyright (c) 2003 Fabrice Bellard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 #if !defined(__DYNGEN_EXEC_H__)
21 #define __DYNGEN_EXEC_H__
25 typedef unsigned char uint8_t;
26 typedef unsigned short uint16_t;
27 typedef unsigned int uint32_t;
28 /* XXX may be done for all 64 bits targets ? */
29 #if defined (__x86_64__)
30 typedef unsigned long uint64_t;
32 typedef unsigned long long uint64_t;
35 typedef signed char int8_t;
36 typedef signed short int16_t;
37 typedef signed int int32_t;
38 #if defined (__x86_64__)
39 typedef signed long int64_t;
41 typedef signed long long int64_t;
44 #define INT8_MIN (-128)
45 #define INT16_MIN (-32767-1)
46 #define INT32_MIN (-2147483647-1)
47 #define INT64_MIN (-(int64_t)(9223372036854775807)-1)
48 #define INT8_MAX (127)
49 #define INT16_MAX (32767)
50 #define INT32_MAX (2147483647)
51 #define INT64_MAX ((int64_t)(9223372036854775807))
52 #define UINT8_MAX (255)
53 #define UINT16_MAX (65535)
54 #define UINT32_MAX (4294967295U)
55 #define UINT64_MAX ((uint64_t)(18446744073709551615))
57 typedef struct FILE FILE;
58 extern int fprintf(FILE *, const char *, ...);
59 extern int printf(const char *, ...);
62 #if defined(_BSD) && !defined(__APPLE__)
65 #define FE_TONEAREST FP_RN
66 #define FE_DOWNWARD FP_RM
67 #define FE_UPWARD FP_RP
68 #define FE_TOWARDZERO FP_RZ
69 #define fesetround(x) fpsetround(x)
93 /* XXX: suppress this hack */
94 #if defined(CONFIG_USER_ONLY)
104 #define USE_INT_TO_FLOAT_HELPERS
105 #define BUGGY_GCC_DIV64
132 #define USE_FP_CONVERT
141 /* Note $15 is the frame pointer, so anything in op-i386.c that would
142 require a frame pointer, like alloca, would probably loose. */
165 /* force GCC to generate only one epilog at the end of the function */
166 #define FORCE_RET() asm volatile ("");
172 #define xglue(x, y) x ## y
173 #define glue(x, y) xglue(x, y)
174 #define stringify(s) tostring(s)
175 #define tostring(s) #s
178 /* the symbols are considered non exported so a br immediate is generated */
179 #define __hidden __attribute__((visibility("hidden")))
185 /* Suggested by Richard Henderson. This will result in code like
186 ldah $0,__op_param1($29) !gprelhigh
187 lda $0,__op_param1($0) !gprellow
188 We can then conveniently change $29 to $31 and adapt the offsets to
189 emit the appropriate constant. */
190 extern int __op_param1 __hidden
;
191 extern int __op_param2 __hidden
;
192 extern int __op_param3 __hidden
;
193 #define PARAM1 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param1)); _r; })
194 #define PARAM2 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param2)); _r; })
195 #define PARAM3 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param3)); _r; })
197 extern int __op_param1
, __op_param2
, __op_param3
;
198 #define PARAM1 ((long)(&__op_param1))
199 #define PARAM2 ((long)(&__op_param2))
200 #define PARAM3 ((long)(&__op_param3))
203 extern int __op_jmp0
, __op_jmp1
, __op_jmp2
, __op_jmp3
;
206 #define EXIT_TB() asm volatile ("ret")
209 #define EXIT_TB() asm volatile ("ret")
212 #define EXIT_TB() asm volatile ("blr")
215 #define EXIT_TB() asm volatile ("br %r14")
218 #define EXIT_TB() asm volatile ("ret")
221 #define EXIT_TB() asm volatile ("br.ret.sptk.many b0;;")
224 #define EXIT_TB() asm volatile ("jmpl %i0 + 8, %g0\n" \
228 #define EXIT_TB() asm volatile ("b exec_loop")
231 #define EXIT_TB() asm volatile ("rts")
234 #endif /* !defined(__DYNGEN_EXEC_H__) */