mirror of
https://github.com/ipxe/ipxe
synced 2025-12-22 21:11:03 +03:00
Moved floppy.c to i386 arch, since it's i386-specific.
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@@ -1,88 +0,0 @@
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#if (TRY_FLOPPY_FIRST > 0)
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/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2, or (at
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* your option) any later version.
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*/
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#include "etherboot.h"
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#define BOOTSECT ((char *)0x7C00)
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#define BOOTSIG ((unsigned short *)BOOTSECT)[0xFF]
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#define PARTTAB ((partentry *)(BOOTSECT+0x1BE))
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typedef struct partentry {
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unsigned char flags;
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unsigned char start_head;
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unsigned char start_sector;
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unsigned char start_cylinder;
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unsigned char type;
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unsigned char end_head;
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unsigned char end_sector;
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unsigned char end_cylinder;
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unsigned long offset;
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unsigned long length;
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} partentry;
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static unsigned int disk_read_retry(int dev,int c,int h,int s)
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{
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int retry = 3,rc;
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while (retry-- && (rc = pcbios_disk_read(dev,c,h,s,BOOTSECT)) != 0);
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if (BOOTSIG != 0xAA55) {
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printf("not a boot sector");
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return(0xFFFF); }
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return(rc);
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}
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int bootdisk(int dev,int part)
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{
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int rc;
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disk_init();
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if ((rc = disk_read_retry(dev,0,0,1)) != 0) {
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readerr:
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if (rc != 0xFFFF)
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printf("read error (%#hhX)",rc/256);
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return(0); }
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if (part) {
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partentry *ptr;
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if (part >= 5) {
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int i;
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for (i = 0, ptr = PARTTAB; ptr->type != 5; ptr++)
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if (++i == 4) {
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printf("partition not found");
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return(0); }
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if ((rc = disk_read_retry(dev,
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ptr->start_cylinder,
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ptr->start_head,
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ptr->start_sector)) != 0)
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goto readerr;
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part -= 4; }
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if (!(ptr = PARTTAB-1+part)->type) {
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printf("empty partition");
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return(0); }
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if ((rc = disk_read_retry(dev,
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ptr->start_cylinder,
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ptr->start_head,
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ptr->start_sector)) != 0)
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goto readerr; }
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cleanup();
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gateA20_unset();
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/* Set %edx to device number to emulate BIOS
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Fortunately %edx is not used after this */
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__asm__("movl %0,%%edx" : : "g" (dev));
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xstart((unsigned long)BOOTSECT, 0, 0);
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return(0);
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}
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#endif
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/*
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* Local variables:
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* c-basic-offset: 8
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* End:
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*/
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