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Added Packard Bell PB520r emulation.

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This commit is contained in:
SarahW 2018-02-20 15:55:46 +00:00
commit cc60e2b2c5
19 changed files with 146 additions and 10 deletions
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71
src/cmd640.c Normal file
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/*CMD640 emulation
Currently only legacy mode emulated*/
#include "ibm.h"
#include "cmd640.h"
#include "ide.h"
#include "pci.h"
static uint8_t card_cmd640[256];
void cmd640_write(int func, int addr, uint8_t val, void *priv)
{
// pclog("cmd640_write: func=%d addr=%02x val=%02x %04x:%08x\n", func, addr, val, CS, cpu_state.pc);
if (func > 0)
return;
switch (addr)
{
case 0x04:
ide_pri_disable();
ide_sec_disable();
if (val & 0x01)
{
ide_pri_enable();
ide_sec_enable();
}
card_cmd640[0x04] = val & 0x41;
break;
case 0x07:
card_cmd640[0x07] = val & 0x86;
break;
case 0x3c:
card_cmd640[0x3c] = val;
break;
}
}
static uint8_t cmd640_read(int func, int addr, void *p)
{
// pclog("cmd640_read: func=%d addr=%02x val=%02x %04x:%08x\n", func, addr, card_cmd640[addr], CS, cpu_state.pc);
if (func > 0)
return 0xff;
return card_cmd640[addr];
}
void cmd640b_init(int card)
{
pci_add_specific(card, cmd640_read, cmd640_write, NULL);
memset(card_cmd640, 0, 256);
card_cmd640[0x00] = 0x95; card_cmd640[0x01] = 0x10; /**/
card_cmd640[0x02] = 0x40; card_cmd640[0x03] = 0x06; /*CMD640*/
card_cmd640[0x04] = 0x01; card_cmd640[0x05] = 0x00;
card_cmd640[0x06] = 0x00; card_cmd640[0x07] = 0x02;
card_cmd640[0x08] = 0x00; /*Revision*/
card_cmd640[0x09] = 0x00; /*Programming interface*/
card_cmd640[0x0a] = 0x01; /*Sub class - IDE controller*/
card_cmd640[0x0b] = 0x01; /*Base class - Mass storage controller*/
card_cmd640[0x3c] = 0x0e; /*Interrupt line*/
card_cmd640[0x3d] = 1;
card_cmd640[0x50] = 0x02; /*Revision = 2*/
card_cmd640[0x51] = 0x80; /*2nd port disabled, drive 1 read ahead disabled*/
card_cmd640[0x57] = 0x0c; /*Drive 2/3 read ahead disabled*/
card_cmd640[0x59] = 0x40; /*Burst length*/
ide_pri_disable();
ide_sec_disable();
}