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qemu/dyngen-exec.h
bellard c46878786a labels support in dyngen 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1196 c046a42c-6fe2-441c-8c8c-71466251a162
2005-01-03 23:44:44 +00:00

244 lines
6.2 KiB
C
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/*
* dyngen defines for micro operation code
*
* Copyright (c) 2003 Fabrice Bellard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#if !defined(__DYNGEN_EXEC_H__)
#define __DYNGEN_EXEC_H__
/* NOTE: standard headers should be used with special care at this
point because host CPU registers are used as global variables. Some
host headers do not allow that. */
#include <stddef.h>
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
/* XXX may be done for all 64 bits targets ? */
#if defined (__x86_64__)
typedef unsigned long uint64_t;
#else
typedef unsigned long long uint64_t;
#endif
typedef signed char int8_t;
typedef signed short int16_t;
typedef signed int int32_t;
#if defined (__x86_64__)
typedef signed long int64_t;
#else
typedef signed long long int64_t;
#endif
#define INT8_MIN (-128)
#define INT16_MIN (-32767-1)
#define INT32_MIN (-2147483647-1)
#define INT64_MIN (-(int64_t)(9223372036854775807)-1)
#define INT8_MAX (127)
#define INT16_MAX (32767)
#define INT32_MAX (2147483647)
#define INT64_MAX ((int64_t)(9223372036854775807))
#define UINT8_MAX (255)
#define UINT16_MAX (65535)
#define UINT32_MAX (4294967295U)
#define UINT64_MAX ((uint64_t)(18446744073709551615))
typedef struct FILE FILE;
extern int fprintf(FILE *, const char *, ...);
extern int printf(const char *, ...);
#undef NULL
#define NULL 0
#if defined(_BSD) && !defined(__APPLE__)
#include <ieeefp.h>
#define FE_TONEAREST FP_RN
#define FE_DOWNWARD FP_RM
#define FE_UPWARD FP_RP
#define FE_TOWARDZERO FP_RZ
#define fesetround(x) fpsetround(x)
#else
#include <fenv.h>
#endif
#ifdef __i386__
#define AREG0 "ebp"
#define AREG1 "ebx"
#define AREG2 "esi"
#define AREG3 "edi"
#endif
#ifdef __x86_64__
#define AREG0 "rbp"
#define AREG1 "rbx"
#define AREG2 "r12"
#define AREG3 "r13"
#define AREG4 "r14"
#define AREG5 "r15"
#endif
#ifdef __powerpc__
#define AREG0 "r27"
#define AREG1 "r24"
#define AREG2 "r25"
#define AREG3 "r26"
/* XXX: suppress this hack */
#if defined(CONFIG_USER_ONLY)
#define AREG4 "r16"
#define AREG5 "r17"
#define AREG6 "r18"
#define AREG7 "r19"
#define AREG8 "r20"
#define AREG9 "r21"
#define AREG10 "r22"
#define AREG11 "r23"
#endif
#define USE_INT_TO_FLOAT_HELPERS
#define BUGGY_GCC_DIV64
#endif
#ifdef __arm__
#define AREG0 "r7"
#define AREG1 "r4"
#define AREG2 "r5"
#define AREG3 "r6"
#endif
#ifdef __mips__
#define AREG0 "s3"
#define AREG1 "s0"
#define AREG2 "s1"
#define AREG3 "s2"
#endif
#ifdef __sparc__
#define AREG0 "g6"
#define AREG1 "g1"
#define AREG2 "g2"
#define AREG3 "g3"
#define AREG4 "l0"
#define AREG5 "l1"
#define AREG6 "l2"
#define AREG7 "l3"
#define AREG8 "l4"
#define AREG9 "l5"
#define AREG10 "l6"
#define AREG11 "l7"
#define USE_FP_CONVERT
#endif
#ifdef __s390__
#define AREG0 "r10"
#define AREG1 "r7"
#define AREG2 "r8"
#define AREG3 "r9"
#endif
#ifdef __alpha__
/* Note $15 is the frame pointer, so anything in op-i386.c that would
require a frame pointer, like alloca, would probably loose. */
#define AREG0 "$15"
#define AREG1 "$9"
#define AREG2 "$10"
#define AREG3 "$11"
#define AREG4 "$12"
#define AREG5 "$13"
#define AREG6 "$14"
#endif
#ifdef __mc68000
#define AREG0 "%a5"
#define AREG1 "%a4"
#define AREG2 "%d7"
#define AREG3 "%d6"
#define AREG4 "%d5"
#endif
#ifdef __ia64__
#define AREG0 "r27"
#define AREG1 "r24"
#define AREG2 "r25"
#define AREG3 "r26"
#endif
/* force GCC to generate only one epilog at the end of the function */
#define FORCE_RET() asm volatile ("");
#ifndef OPPROTO
#define OPPROTO
#endif
#define xglue(x, y) x ## y
#define glue(x, y) xglue(x, y)
#define stringify(s) tostring(s)
#define tostring(s) #s
#ifdef __alpha__
/* the symbols are considered non exported so a br immediate is generated */
#define __hidden __attribute__((visibility("hidden")))
#else
#define __hidden
#endif
#if defined(__alpha__)
/* Suggested by Richard Henderson. This will result in code like
ldah $0,__op_param1($29) !gprelhigh
lda $0,__op_param1($0) !gprellow
We can then conveniently change $29 to $31 and adapt the offsets to
emit the appropriate constant. */
extern int __op_param1 __hidden;
extern int __op_param2 __hidden;
extern int __op_param3 __hidden;
#define PARAM1 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param1)); _r; })
#define PARAM2 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param2)); _r; })
#define PARAM3 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param3)); _r; })
#else
#if defined(__APPLE__)
static int __op_param1, __op_param2, __op_param3;
#else
extern int __op_param1, __op_param2, __op_param3;
#endif
#define PARAM1 ((long)(&__op_param1))
#define PARAM2 ((long)(&__op_param2))
#define PARAM3 ((long)(&__op_param3))
#endif /* !defined(__alpha__) */
extern int __op_jmp0, __op_jmp1, __op_jmp2, __op_jmp3;
#ifdef __i386__
#define EXIT_TB() asm volatile ("ret")
#define GOTO_LABEL_PARAM(n) asm volatile ("jmp __op_gen_label" #n)
#endif
#ifdef __x86_64__
#define EXIT_TB() asm volatile ("ret")
#endif
#ifdef __powerpc__
#define EXIT_TB() asm volatile ("blr")
#define GOTO_LABEL_PARAM(n) asm volatile ("b __op_gen_label" #n)
#endif
#ifdef __s390__
#define EXIT_TB() asm volatile ("br %r14")
#endif
#ifdef __alpha__
#define EXIT_TB() asm volatile ("ret")
#endif
#ifdef __ia64__
#define EXIT_TB() asm volatile ("br.ret.sptk.many b0;;")
#endif
#ifdef __sparc__
#define EXIT_TB() asm volatile ("jmpl %i0 + 8, %g0\n" \
"nop")
#endif
#ifdef __arm__
#define EXIT_TB() asm volatile ("b exec_loop")
#endif
#ifdef __mc68000
#define EXIT_TB() asm volatile ("rts")
#endif
#endif /* !defined(__DYNGEN_EXEC_H__) */
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