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Annotation of hatari/src/uae-cpu/compiler.h, revision 1.1

1.1     ! root        1:  /*
        !             2:   * UAE - The Un*x Amiga Emulator
        !             3:   *
        !             4:   * m68k -> i386 compiler
        !             5:   *
        !             6:   * (c) 1995 Bernd Schmidt
        !             7:   */
        !             8: 
        !             9: typedef uaecptr (*code_execfunc)(void);
        !            10: 
        !            11: struct code_page {
        !            12:     struct code_page *next;
        !            13:     uae_u32 allocmask;
        !            14: };
        !            15: 
        !            16: struct hash_block {
        !            17:     struct hash_block *lru_next, *lru_prev;
        !            18:     struct hash_entry *he_first;
        !            19: 
        !            20:     struct code_page *cpage;
        !            21:     int alloclen;
        !            22:     uae_u32 page_allocmask;
        !            23:     char *compile_start;
        !            24: 
        !            25:     int nrefs;
        !            26: 
        !            27:     int translated:1;
        !            28:     int untranslatable:1;
        !            29:     int allocfailed:1;
        !            30: };
        !            31: 
        !            32: struct hash_entry {
        !            33:     code_execfunc execute; /* For the sake of the stubs in X86.S */
        !            34:     struct hash_entry *next,*prev;
        !            35:     struct hash_entry *next_same_block, *lru_next, *lru_prev;
        !            36:     struct hash_block *block;
        !            37: 
        !            38:     uaecptr addr;
        !            39:     uae_u32 matchword;
        !            40:     int ncalls:8;
        !            41:     int locked:1;
        !            42:     int cacheflush:1;
        !            43: };
        !            44: 
        !            45: extern int nr_bbs_start;
        !            46: extern uae_u8 nr_bbs_to_run;
        !            47: extern code_execfunc exec_me;
        !            48: 
        !            49: #ifdef USE_COMPILER
        !            50: STATIC_INLINE void run_compiled_code(void)
        !            51: {
        !            52: 
        !            53:     /*if (regs.spcflags == SPCFLAG_EXEC && may_run_compiled) {*/
        !            54:        while (regs.spcflags == SPCFLAG_EXEC) {
        !            55:            uaecptr newpc;
        !            56:            regs.spcflags = 0;
        !            57:            newpc = (*exec_me)();
        !            58:            /*__asm__ __volatile__ ("pushl %%ebp; call *%1; popl %%ebp" : "=a" (newpc) : "r" (exec_me) :
        !            59:                                  "%eax", "%edx", "%ecx", "%ebx",
        !            60:                                  "%edi", "%esi", "memory", "cc");*/
        !            61:            if (nr_bbs_to_run == 0) {
        !            62:                struct hash_entry *h = (struct hash_entry *)newpc;
        !            63:                regs.spcflags = SPCFLAG_EXEC;
        !            64:                exec_me = h->execute;
        !            65:                regs.pc = h->addr;
        !            66:                regs.pc_p = regs.pc_oldp = get_real_address(h->addr);
        !            67:                nr_bbs_to_run = nr_bbs_start;
        !            68:            } else
        !            69:                m68k_setpc_fast(newpc);
        !            70:            do_cycles();
        !            71:        }
        !            72: /*} else */
        !            73:        regs.spcflags &= ~SPCFLAG_EXEC;
        !            74: }
        !            75: 
        !            76: extern void compiler_init(void);
        !            77: extern void possible_loadseg(void);
        !            78: 
        !            79: extern void m68k_do_rts(void);
        !            80: extern void m68k_do_bsr(uaecptr, uae_s32);
        !            81: extern void m68k_do_jsr(uaecptr, uaecptr);
        !            82: extern void compiler_flush_jsr_stack(void);
        !            83: 
        !            84: #else
        !            85: 
        !            86: #define run_compiled_code() do { ; } while (0)
        !            87: #define compiler_init() do { ; } while (0)
        !            88: #define possible_loadseg() do { ; } while (0)
        !            89: #define compiler_flush_jsr_stack() do { ; } while (0)
        !            90: 
        !            91: STATIC_INLINE void m68k_do_rts(void)
        !            92: {
        !            93:     m68k_setpc(get_long(m68k_areg(regs, 7)));
        !            94:     m68k_areg(regs, 7) += 4;
        !            95: }
        !            96: 
        !            97: STATIC_INLINE void m68k_do_bsr(uaecptr oldpc, uae_s32 offset)
        !            98: {
        !            99:     m68k_areg(regs, 7) -= 4;
        !           100:     put_long(m68k_areg(regs, 7), oldpc);
        !           101:     m68k_incpc(offset);
        !           102: }
        !           103: 
        !           104: STATIC_INLINE void m68k_do_jsr(uaecptr oldpc, uaecptr dest)
        !           105: {
        !           106:     m68k_areg(regs, 7) -= 4;
        !           107:     put_long(m68k_areg(regs, 7), oldpc);
        !           108:     m68k_setpc(dest);
        !           109: }
        !           110: 
        !           111: #endif

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