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Annotation of 43BSDReno/pgrm/pascal/pdx/process/pxinfo.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1980 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  *
        !             6:  *     @(#)pxinfo.h    5.3 (Berkeley) 1/9/89
        !             7:  */
        !             8: 
        !             9: /*
        !            10:  * This is the information we get after the initial trap that px does.
        !            11:  * By passing the "-d" flag, we cause px to call a procedure with the
        !            12:  * the following information:
        !            13:  *
        !            14:  *     address of the display
        !            15:  *     address of the display pointer
        !            16:  *     address of the beginning of the object code
        !            17:  *
        !            18:  *     the address of the program counter used in the interpreter procedure
        !            19:  *             (px actually keeps the pc in a register if it can, but stores
        !            20:  *              it in this location each time around the interpreter loop.)
        !            21:  *     the address of the main interpreter loop (past the store of pc)
        !            22:  */
        !            23: 
        !            24: #ifdef tahoe
        !            25: typedef struct {
        !            26:        short trp_savemask;
        !            27:        short trp_removed;
        !            28:        int trp_oldfp;
        !            29:        ADDRESS *disp;
        !            30:        ADDRESS *dp;
        !            31:        ADDRESS objstart;
        !            32:        ADDRESS pcaddr;
        !            33:        ADDRESS loopaddr;
        !            34: } TRAPARGS;
        !            35: #else
        !            36: typedef struct {
        !            37:        int nargs;
        !            38:        ADDRESS *disp;
        !            39:        ADDRESS *dp;
        !            40:        ADDRESS objstart;
        !            41:        ADDRESS pcaddr;
        !            42:        ADDRESS loopaddr;
        !            43: } TRAPARGS;
        !            44: #endif
        !            45: 
        !            46: ADDRESS *DISPLAY;
        !            47: ADDRESS *DP;
        !            48: ADDRESS ENDOFF;
        !            49: ADDRESS PCADDR;
        !            50: ADDRESS LOOPADDR;
        !            51: #ifdef tahoe
        !            52: ADDRESS RETLOC;
        !            53: ADDRESS INTFP;
        !            54: #endif

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