mirror of
https://github.com/SEPPDROID/Digital-Research-Source-Code.git
synced 2025-10-23 00:14:25 +00:00
149 lines
7.3 KiB
C
149 lines
7.3 KiB
C
/*
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* Kludge hex dump routine for 68K
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*/
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#include <stdio.h>
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#include <osif.h>
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#include "machine.h"
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#include <ctype.h>
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main(argc,argv)
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int argc;
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char **argv;
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{
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char buffer[128]; /* Sector buffer */
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int sector; /* Sector number */
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long filaddr; /* File address */
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int offset; /* Sector Offset */
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register i,j,k,l,m; /* Temps. */
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int fd; /* File descriptor */
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if(argc < 2 || argc > 3) /* Only 1 file, please! */
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{
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printf("Usage: dump [-shhhhhh] file\n");
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exit();
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}
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i = 1;
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filaddr= 0; /* Zero file address */
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if(*argv[1] == '-')
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{
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decode(argv[1],&filaddr); /* Get hex file addr */
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i=2;
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}
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if((fd=openb(argv[i],READ)) < 0) /* Try to open file */
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{
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printf("Unable to open \"%s\"\n",argv[i]);
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exit();
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}
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sector = filaddr >> 7; /* Zero sector count */
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filaddr &= ~15; /* Round request down */
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lseek(fd,filaddr,0); /* Do the seek */
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m = (128 - (filaddr & 127)); /* # bytes in sector */
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while((l=read(fd,buffer,m)) > 0) /* Until EOF */
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{
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l = (l + 15) / 16; /* Number of lines */
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offset = filaddr & 127; /* Starting Offset */
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for(i=0; i<l; i++) /* 8 lines / sector */
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{
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printf("%04x %02x (%06lx): ",sector,offset,filaddr);
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for(j=0; j<16; j++) /* 16 bytes / line */
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{
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#if VAX
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printf(" %02x%02x",(buffer[i*16+j+1])&0xff,
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(buffer[i*16+j]&0xff));
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#endif
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#if PDP11
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printf(" %02x%02x",(buffer[i*16+j+1])&0xff,
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(buffer[i*16+j])&0xff);
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#endif
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#if MC68000
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printf(" %02x%02x",(buffer[i*16+j])&0xff,
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(buffer[i*16+j+1]&0xff));
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#endif
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j++;
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}
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printf(" *");
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for(j=0; j<16; j++) /* Now ASCII */
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{
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k = buffer[i*16+j] & 0x7f;
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if ((k < ' ') || (k == 0x7f)) k= '.';
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printf("%c",k);
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}
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printf("*\n");
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filaddr += 16; /* Bump up file address*/
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offset += 16; /* and offset */
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}
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sector++; /* Increment sector count*/
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m = 128; /* # bytes to read next */
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for(j=0; j<128; j++)
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buffer[j] = 0;
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}
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printf("\n*** E O F ***\n");
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}
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/****************************************************************************/
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/* */
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/* D e c o d e F u n c t i o n */
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/* ------------------------------ */
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/* */
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/* Routine "decode" is called to process the relocation base argument */
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/* from the command line. */
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/* */
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/* Calling sequence: */
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/* */
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/* ret = decode(string,&address); */
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/* */
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/* Where: */
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/* string -> argument string (usually argv[1]) */
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/* &address -> long word to receive converted value */
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/* */
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/* ret = 0 if successful conversion */
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/* = -1 if anything amiss */
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/* */
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/****************************************************************************/
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WORD decode(string,addr) /* */
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/* */
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REG BYTE *string; /* -> Command argument */
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LONG *addr; /* = return value */
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{ /****************************/
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REG LONG a; /* Temp return value */
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REG BYTE c; /* Temp character */
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/* */
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if(*string++ != '-' || *string++ != 's')/* Check for valid switch */
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return(FAILURE); /* quit if NFG */
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/* */
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a = 0; /* Zero out accumulator */
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/* */
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while(*string) /* Until no more chars */
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{ /* */
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c = toupper(*string) & 0177; /* Pick up next char */
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if (c >= '0' && c <= '9') /* Digit */
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a = (a << 4) + c - '0'; /* Un-ASCIIfy */
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else if (c >= 'A' && c <= 'F') /* Hex */
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a = (a << 4) + c - 'A'+ 10; /* Un-ASCIIfy */
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else /* Bad character */
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return(FAILURE); /* So long, sucker!! */
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string++; /* Increment pointer */
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} /* */
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*addr = a; /* Store result */
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return(SUCCESS); /* Return all ok */
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} /****************************/
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*/
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} /****************************/
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*/
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} /****************************/
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