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https://github.com/wwarthen/RomWBW.git
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72 lines
1.3 KiB
C
72 lines
1.3 KiB
C
/**************************************************************/
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/* sectorio.c 7/30/2012 dwg - read and write physical sectors */
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/**************************************************************/
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/* 7/30/2012 dwg - wrsector now has c=0 for WRITE call per Wayne */
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#include "cpmbios.h"
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#include "bioscall.h"
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int rdsector(drive,track,sector,buffer)
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int drive;
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int track;
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int sector;
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unsigned int buffer;
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{
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ireghl = pSELDSK;
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iregbc = drive;
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iregde = 0;
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bioscall();
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ireghl = pSETTRK;
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iregbc = track;
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bioscall();
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ireghl = pSETSEC;
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iregbc = sector;
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bioscall();
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ireghl = pSETDMA;
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iregbc = buffer;
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bioscall();
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ireghl = pREAD;
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bioscall();
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return irega;
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}
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int wrsector(drive,track,sector,buffer)
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int drive;
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int track;
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int sector;
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unsigned int buffer;
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{
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ireghl = pSELDSK;
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iregbc = drive;
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iregde = 0;
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bioscall();
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ireghl = pSETTRK;
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iregbc = track;
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bioscall();
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ireghl = pSETSEC;
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iregbc = sector;
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bioscall();
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ireghl = pSETDMA;
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iregbc = buffer;
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bioscall();
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ireghl = pWRITE;
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iregbc = 0; /* default to 0 per wayne 7/30.2012 */
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bioscall();
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return irega;
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}
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/********************/
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/* eof - sectorio.c */
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/********************/
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