Return to cpu.h CVS log

Up to [Qemu by Fabrice Bellard] / qemu / target-m68k

Annotation of qemu/target-m68k/cpu.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * m68k virtual CPU header
        !             3:  * 
        !             4:  *  Copyright (c) 2005-2006 CodeSourcery
        !             5:  *  Written by Paul Brook
        !             6:  *
        !             7:  * This library is free software; you can redistribute it and/or
        !             8:  * modify it under the terms of the GNU Lesser General Public
        !             9:  * License as published by the Free Software Foundation; either
        !            10:  * version 2 of the License, or (at your option) any later version.
        !            11:  *
        !            12:  * This library is distributed in the hope that it will be useful,
        !            13:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            14:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
        !            15:  * General Public License for more details.
        !            16:  *
        !            17:  * You should have received a copy of the GNU Lesser General Public
        !            18:  * License along with this library; if not, write to the Free Software
        !            19:  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
        !            20:  */
        !            21: #ifndef CPU_M68K_H
        !            22: #define CPU_M68K_H
        !            23: 
        !            24: #define TARGET_LONG_BITS 32
        !            25: 
        !            26: #include "cpu-defs.h"
        !            27: 
        !            28: #include "softfloat.h"
        !            29: 
        !            30: #define MAX_QREGS 32
        !            31: 
        !            32: #define TARGET_HAS_ICE 1
        !            33: 
        !            34: #define ELF_MACHINE    EM_68K
        !            35: 
        !            36: #define EXCP_ACCESS         2   /* Access (MMU) error.  */
        !            37: #define EXCP_ADDRESS        3   /* Address error.  */
        !            38: #define EXCP_ILLEGAL        4   /* Illegal instruction.  */
        !            39: #define EXCP_DIV0           5   /* Divide by zero */
        !            40: #define EXCP_PRIVILEGE      8   /* Privilege violation.  */
        !            41: #define EXCP_TRACE          9
        !            42: #define EXCP_LINEA          10  /* Unimplemented line-A (MAC) opcode.  */
        !            43: #define EXCP_LINEF          11  /* Unimplemented line-F (FPU) opcode.  */
        !            44: #define EXCP_DEBUGNBP       12  /* Non-breakpoint debug interrupt.  */
        !            45: #define EXCP_DEBEGBP        13  /* Breakpoint debug interrupt.  */
        !            46: #define EXCP_FORMAT         14  /* RTE format error.  */
        !            47: #define EXCP_UNINITIALIZED  15
        !            48: #define EXCP_TRAP0          32   /* User trap #0.  */
        !            49: #define EXCP_TRAP15         47   /* User trap #15.  */
        !            50: #define EXCP_UNSUPPORTED    61
        !            51: #define EXCP_ICE            13
        !            52: 
        !            53: typedef struct CPUM68KState {
        !            54:     uint32_t dregs[8];
        !            55:     uint32_t aregs[8];
        !            56:     uint32_t pc;
        !            57:     uint32_t sr;
        !            58: 
        !            59:     /* Condition flags.  */
        !            60:     uint32_t cc_op;
        !            61:     uint32_t cc_dest;
        !            62:     uint32_t cc_src;
        !            63:     uint32_t cc_x;
        !            64: 
        !            65:     float64 fregs[8];
        !            66:     float64 fp_result;
        !            67:     uint32_t fpcr;
        !            68:     uint32_t fpsr;
        !            69:     float_status fp_status;
        !            70: 
        !            71:     /* Temporary storage for DIV helpers.  */
        !            72:     uint32_t div1;
        !            73:     uint32_t div2;
        !            74:     
        !            75:     /* MMU status.  */
        !            76:     struct {
        !            77:         uint32_t ar;
        !            78:     } mmu;
        !            79:     /* ??? remove this.  */
        !            80:     uint32_t t1;
        !            81: 
        !            82:     /* exception/interrupt handling */
        !            83:     jmp_buf jmp_env;
        !            84:     int exception_index;
        !            85:     int interrupt_request;
        !            86:     int user_mode_only;
        !            87:     uint32_t address;
        !            88: 
        !            89:     uint32_t qregs[MAX_QREGS];
        !            90: 
        !            91:     CPU_COMMON
        !            92: } CPUM68KState;
        !            93: 
        !            94: CPUM68KState *cpu_m68k_init(void);
        !            95: int cpu_m68k_exec(CPUM68KState *s);
        !            96: void cpu_m68k_close(CPUM68KState *s);
        !            97: /* you can call this signal handler from your SIGBUS and SIGSEGV
        !            98:    signal handlers to inform the virtual CPU of exceptions. non zero
        !            99:    is returned if the signal was handled by the virtual CPU.  */
        !           100: int cpu_m68k_signal_handler(int host_signum, void *pinfo, 
        !           101:                            void *puc);
        !           102: void cpu_m68k_flush_flags(CPUM68KState *, int);
        !           103: 
        !           104: enum {
        !           105:     CC_OP_DYNAMIC, /* Use env->cc_op  */
        !           106:     CC_OP_FLAGS, /* CC_DEST = CVZN, CC_SRC = unused */
        !           107:     CC_OP_LOGIC, /* CC_DEST = result, CC_SRC = unused */
        !           108:     CC_OP_ADD,   /* CC_DEST = result, CC_SRC = source */
        !           109:     CC_OP_SUB,   /* CC_DEST = result, CC_SRC = source */
        !           110:     CC_OP_CMPB,  /* CC_DEST = result, CC_SRC = source */
        !           111:     CC_OP_CMPW,  /* CC_DEST = result, CC_SRC = source */
        !           112:     CC_OP_ADDX,  /* CC_DEST = result, CC_SRC = source */
        !           113:     CC_OP_SUBX,  /* CC_DEST = result, CC_SRC = source */
        !           114:     CC_OP_SHL,   /* CC_DEST = source, CC_SRC = shift */
        !           115:     CC_OP_SHR,   /* CC_DEST = source, CC_SRC = shift */
        !           116:     CC_OP_SAR,   /* CC_DEST = source, CC_SRC = shift */
        !           117: };
        !           118: 
        !           119: #define CCF_C 0x01
        !           120: #define CCF_V 0x02
        !           121: #define CCF_Z 0x04
        !           122: #define CCF_N 0x08
        !           123: #define CCF_X 0x01
        !           124: 
        !           125: typedef struct m68k_def_t m68k_def_t;
        !           126: 
        !           127: m68k_def_t *m68k_find_by_name(const char *);
        !           128: void cpu_m68k_register(CPUM68KState *, m68k_def_t *);
        !           129: 
        !           130: #define M68K_FPCR_PREC (1 << 6)
        !           131: 
        !           132: #ifdef CONFIG_USER_ONLY
        !           133: /* Linux uses 8k pages.  */
        !           134: #define TARGET_PAGE_BITS 13
        !           135: #else
        !           136: /* Smallest TLB entry size is 1k.  */ 
        !           137: #define TARGET_PAGE_BITS 10
        !           138: #endif
        !           139: #include "cpu-all.h"
        !           140: 
        !           141: #endif

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.