mirror of
https://github.com/SEPPDROID/Digital-Research-Source-Code.git
synced 2025-10-23 08:24:18 +00:00
139 lines
3.7 KiB
C
139 lines
3.7 KiB
C
/********************************************************/
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/* */
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/* Stuff to INCLUDE in DDT-68K */
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/* */
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/********************************************************/
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#define MAXBP 10 /* max breakpoints allowed */
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#define ILLEGAL 0x4AFC /* ILLEGAL instruction */
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#define BDOSCALL 0x4E42 /* TRAP #2 instruction */
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#define BIOSCALL 0x4E43 /* TRAP #3 instruction */
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#define BUFLEN 85 /* command buffer length */
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#define GETSEP getsep(&cx)
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struct bytestr { char memb; };
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struct wordstr { int memw; };
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struct longstr { long meml; };
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/****************************************************************/
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/* */
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/* Define the CPU Status Structure and Related Tables */
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/* */
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/****************************************************************/
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struct cpustate {
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long pc;
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long usp;
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long ssp;
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int status;
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long dreg[8];
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long areg[8];
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};
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#define TRACE 0x8000
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#define SUPER 0x2000
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#define INTMSK 0x0700
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#define EXTEND 0x0010
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#define NEG 0x0008
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#define ZERO 0x0004
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#define OFLOW 0x0002
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#define CARRY 0x0001
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/****************************************************************/
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/* */
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/* Define FCB Structure */
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/* */
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/****************************************************************/
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struct fcb {
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char dr; /* drive code */
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char fn[8]; /* file name */
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char t[3]; /* file type */
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char ex; /* extent */
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char s1; /* used by sys */
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char s2; /* used by sys */
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char rc; /* rec count */
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char d[16]; /* used by sys */
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char cr; /* curr rec no */
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char r[3]; /* rand rec no */
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};
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/****************************************************************/
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/* */
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/* Base Page Structure */
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/* */
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/****************************************************************/
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struct basepage {
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long lowtpa; /* low address of tpa */
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long hightpa; /* high address of tpa */
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long csstart; /* start of code seg */
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long cslen; /* length of code seg */
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long dsstart; /* start of data seg */
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long dslen; /* length of data seg */
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long bsstart; /* start of bss seg */
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long bslen; /* length of bss seg */
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long freelen; /* free mem after bss */
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long reserved[5];
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struct fcb fcb2;
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struct fcb fcb1;
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char comtail[0x80];
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};
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/************************************************************************/
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/* */
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/* Define a structure for holding information about the most */
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/* recently loaded program or file */
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/* */
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/************************************************************************/
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struct value {
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int kind; /* 0 => none, 1 => pgm, 2 => file */
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long textbase; /* if kind==2 then use textseg for file */
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long textlen;
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long database;
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long datalen;
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long bssbase;
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long bsslen;
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long bpa;
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long initstk;
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};
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/************************************************************************/
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/* */
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/* Define the Load Program Parameter Block */
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/* */
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/************************************************************************/
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struct lpb {
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struct fcb *fcbaddr;
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long tpabase;
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long tpatop;
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long *bpaddr;
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long stkinit;
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int flags;
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};
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/****************************************************************/
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/* */
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/* Some Forward Function Definitions */
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/* */
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/****************************************************************/
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char *readcom();
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char hexchar();
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short int getform();
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long int GETSSP();
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/**/
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