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Fixed some Buslogic bugs;

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Implemented the EuroPC JIM chip NVR saving/loading correctly.
This commit is contained in:
OBattler
2017-08-25 23:17:45 +02:00
parent d21a4fbf3c
commit 2b980aae72
5 changed files with 56 additions and 10 deletions
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52
src/jim.c
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@@ -7,7 +7,10 @@
#include "CPU/cpu.h"
#include "io.h"
#include "device.h"
#include "jim.h"
#include "mem.h"
#include "model.h"
#include "rom.h"
uint8_t europcdat[16];
@@ -15,11 +18,43 @@ uint8_t europcdat[16];
struct
{
uint8_t dat[16];
int stat;
int addr;
uint8_t stat;
uint8_t addr;
} europc_rtc;
static uint8_t jim_load_nvr(void)
{
FILE *f;
f = nvrfopen(L"europc_jim.nvr", L"rb");
if (f)
{
fread(europcdat, 1, 16, f);
fread(europc_rtc.dat, 1, 16, f);
fclose(f);
f = NULL;
return 1;
}
return 0;
}
void jim_save_nvr(void)
{
FILE *f;
f = nvrfopen(L"europc_jim.nvr", L"wb");
if (f)
{
fwrite(europcdat, 1, 16, f);
fwrite(europc_rtc.dat, 1, 16, f);
fclose(f);
f = NULL;
}
}
static void writejim(uint16_t addr, uint8_t val, void *p)
{
if ((addr&0xFF0)==0x250) europcdat[addr&0xF]=val;
@@ -73,12 +108,15 @@ void jim_init(void)
{
uint8_t viddat;
memset(europc_rtc.dat,0,16);
europc_rtc.dat[0xF]=1;
europc_rtc.dat[3]=1;
europc_rtc.dat[4]=1;
europc_rtc.dat[5]=0x88;
if (!jim_load_nvr())
{
europc_rtc.dat[0xF]=1;
europc_rtc.dat[3]=1;
europc_rtc.dat[4]=1;
europc_rtc.dat[5]=0x88;
}
if (gfxcard==GFX_CGA || gfxcard == GFX_COLORPLUS) viddat=0x12;
else if (gfxcard==GFX_MDA || gfxcard==GFX_HERCULES || gfxcard==GFX_INCOLOR) viddat=3;
else if (gfxcard==GFX_MDA || gfxcard==GFX_HERCULES || gfxcard==GFX_INCOLOR) viddat=3;
else viddat=0x10;
europc_rtc.dat[0xB]=viddat;
europc_rtc.dat[0xD]=viddat; /*Checksum*/