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Annotation of coherent/d/bin/cc/c/h/i8086/cc2mch.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * This file contains the machine
        !             3:  * specific definitions used by the direct to
        !             4:  * bits C compiler's final phase. This version is
        !             5:  * for the Intel 8086 (SMALL and LARGE). This is
        !             6:  * the new VAX base, including all edits up to
        !             7:  * revision 48.
        !             8:  */
        !             9: typedef        unsigned short  ADDRESS;
        !            10: typedef short          SIGNEDADDRESS;
        !            11: 
        !            12: #define        UNCON   ZJMP
        !            13: #define        ischnrel(rel) (rel!=ZLOOP && rel!=ZLOOPE && rel!=ZLOOPNE && rel!=ZJCXZ)
        !            14: #define        isrevrel(rel) (rel!=ZJMP && rel!=ZLOOP && rel!=ZLOOPE && rel!=ZLOOPNE && rel!=ZJCXZ)
        !            15: 
        !            16: /*
        !            17:  * These definitions are used in the
        !            18:  * opcode table. They tell the coder the style
        !            19:  * of the instruction.
        !            20:  */
        !            21: #define        OF_BYTE    0            /* Byte data */
        !            22: #define        OF_CALL    1            /* Direct call */
        !            23: #define        OF_ICALL   2            /* Indirect call */
        !            24: #define        OF_IN      3            /* In */
        !            25: #define        OF_INH     4            /* Inherent (1 byte) */
        !            26: #define        OF_INH2    5            /* One byte, 0x0A prefix */
        !            27: #define        OF_INT     6            /* Interrupt */
        !            28: #define        OF_JMP     7            /* Jumps */
        !            29: #define        OF_LEA     8            /* Lea, lds, les */
        !            30: #define        OF_REL     9            /* Jcxz, loops */
        !            31: #define        OF_MUL     10           /* Mul and div */
        !            32: #define        OF_MOV     11           /* Moves */
        !            33: #define        OF_NRET    12           /* Return with pop of n */
        !            34: #define        OF_OUT     13           /* Out */
        !            35: #define        OF_POP     14           /* Pop */
        !            36: #define        OF_PUSH    15           /* Push */
        !            37: #define        OF_DOP     16           /* Double operand */
        !            38: #define        OF_SHR     17           /* Shifts */
        !            39: #define        OF_SOP     18           /* Single operand */
        !            40: #define        OF_WORD    19           /* Word data */
        !            41: #define        OF_XCALL   20           /* Cross segment calls */
        !            42: #define        OF_DOPS    21           /* Double op, sw encoding valid */
        !            43: #define        OF_FWAIT   22           /* FWAIT */
        !            44: #define        OF_FRM     23           /* Floating point, uses standard address */
        !            45: #define        OF_FD9     24           /* Single byte, D9 prefix */
        !            46: #define        OF_FDE     25           /* Single byte, DE prefix */
        !            47: #define        OF_LPTR    26           /* Local pointer (offset only) */
        !            48: #define        OF_GPTR    27           /* Global pointer (segment and offset) */
        !            49: #define        OF_FDD     28           /* Single byte, DD prefix */
        !            50: #define        OF_MUL3    29           /* Multiply immediate, 3 operands */
        !            51: 
        !            52: #define        is8087op(op)    ((op)==OF_FWAIT||(op)==OF_FD9||(op)==OF_FDD||(op)==OF_FDE||(op)==OF_FRM)
        !            53: 
        !            54: /* Flags */
        !            55: #define        OP_BYTE    010          /* Byte instruction */
        !            56: #define        OP_NPTR    020          /* No PTR in output */
        !            57: #define        OP_DWORD   040          /* Dword instruction */
        !            58: 
        !            59: /* If !EMUFIXUPS, the routines outf[bw]() write an absolute 8087 op. */
        !            60: #if    !EMUFIXUPS
        !            61: #define        outfb(b)        outab(b)
        !            62: #define        outfw(w, pfx)   outaw(w)
        !            63: #endif
        !            64: 
        !            65: /*
        !            66:  * Externals.
        !            67:  */
        !            68: extern int     framesize;      /* Size of frame */
        !            69: 

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