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Add Iomega Zip drive emulation.

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This commit is contained in:
SarahW 2018-01-21 16:05:39 +00:00
commit 5fd2fd40aa
22 changed files with 2954 additions and 1809 deletions
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29
src/hdd_file.c
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@ -6,16 +6,19 @@
#include "ibm.h"
#include "hdd_file.h"
void hdd_load(hdd_file_t *hdd, int d, const char *fn)
void hdd_load_ext(hdd_file_t *hdd, const char *fn, int spt, int hpc, int tracks, int read_only)
{
if (hdd->f == NULL)
{
/* Try to open existing hard disk image */
hdd->f = fopen64(fn, "rb+");
if (read_only)
hdd->f = fopen64(fn, "rb");
else
hdd->f = fopen64(fn, "rb+");
if (hdd->f == NULL)
{
/* Failed to open existing hard disk image */
if (errno == ENOENT)
if (errno == ENOENT && !read_only)
{
/* Failed because it does not exist,
so try to create new file */
@ -37,10 +40,16 @@ void hdd_load(hdd_file_t *hdd, int d, const char *fn)
}
}
hdd->spt = hdc[d].spt;
hdd->hpc = hdc[d].hpc;
hdd->tracks = hdc[d].tracks;
hdd->sectors = hdc[d].spt * hdc[d].hpc * hdc[d].tracks;
hdd->spt = spt;
hdd->hpc = hpc;
hdd->tracks = tracks;
hdd->sectors = spt * hpc * tracks;
hdd->read_only = read_only;
}
void hdd_load(hdd_file_t *hdd, int d, const char *fn)
{
hdd_load_ext(hdd, fn, hdc[d].spt, hdc[d].hpc, hdc[d].tracks, 0);
}
void hdd_close(hdd_file_t *hdd)
@ -73,6 +82,9 @@ int hdd_write_sectors(hdd_file_t *hdd, int offset, int nr_sectors, void *buffer)
{
off64_t addr;
int transfer_sectors = nr_sectors;
if (hdd->read_only)
return 1;
if ((hdd->sectors - offset) < transfer_sectors)
transfer_sectors = hdd->sectors - offset;
@ -93,6 +105,9 @@ int hdd_format_sectors(hdd_file_t *hdd, int offset, int nr_sectors)
uint8_t zero_buffer[512];
int transfer_sectors = nr_sectors;
if (hdd->read_only)
return 1;
memset(zero_buffer, 0, 512);
if ((hdd->sectors - offset) < transfer_sectors)