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Restored Compaq Portable II and III machines, changes by TheCollector1995. Good job!

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This commit is contained in:
waltje
2017-11-11 16:03:13 -05:00
parent bda698f975
commit 1e470fe49d
5 changed files with 73 additions and 41 deletions
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97
src/machine/m_at_compaq.c
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@@ -1,6 +1,22 @@
/* Copyright holders: Sarah Walker
see COPYING for more details
*/
/*
* 86Box A hypervisor and IBM PC system emulator that specializes in
* running old operating systems and software designed for IBM
* PC systems and compatibles from 1981 through fairly recent
* system designs based on the PCI bus.
*
* This file is part of the 86Box distribution.
*
* Emulation of various Compaq PC's.
*
* Version: @(#)m_at_compaq.c 1.0.1 2017/11/11
*
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Miran Grca, <mgrca8@gmail.com>
* TheCollector1995, <mariogplayer@gmail.com>
*
* Copyright 2008-2017 Sarah Walker.
* Copyright 2016,2017 Miran Grca.
*/
#include <stdio.h>
#include <stdint.h>
#include <string.h>
@@ -12,61 +28,76 @@
/* Compaq Deskpro 386 remaps RAM from 0xA0000-0xFFFFF to 0xFA0000-0xFFFFFF */
static mem_mapping_t ram_mapping;
static mem_mapping_t compaq_ram_mapping;
static uint8_t compaq_read_ram(uint32_t addr, void *priv)
static uint8_t
read_ram(uint32_t addr, void *priv)
{
addr = (addr & 0x7ffff) + 0x80000;
addreadlookup(mem_logical_addr, addr);
return ram[addr];
addr = (addr & 0x7ffff) + 0x80000;
addreadlookup(mem_logical_addr, addr);
return(ram[addr]);
}
static uint16_t compaq_read_ramw(uint32_t addr, void *priv)
static uint16_t
read_ramw(uint32_t addr, void *priv)
{
addr = (addr & 0x7ffff) + 0x80000;
addreadlookup(mem_logical_addr, addr);
return *(uint16_t *)&ram[addr];
addr = (addr & 0x7ffff) + 0x80000;
addreadlookup(mem_logical_addr, addr);
return(*(uint16_t *)&ram[addr]);
}
static uint32_t compaq_read_raml(uint32_t addr, void *priv)
static uint32_t
read_raml(uint32_t addr, void *priv)
{
addr = (addr & 0x7ffff) + 0x80000;
addreadlookup(mem_logical_addr, addr);
return *(uint32_t *)&ram[addr];
addr = (addr & 0x7ffff) + 0x80000;
addreadlookup(mem_logical_addr, addr);
return(*(uint32_t *)&ram[addr]);
}
static void compaq_write_ram(uint32_t addr, uint8_t val, void *priv)
static void
write_ram(uint32_t addr, uint8_t val, void *priv)
{
addr = (addr & 0x7ffff) + 0x80000;
addwritelookup(mem_logical_addr, addr);
mem_write_ramb_page(addr, val, &pages[addr >> 12]);
addr = (addr & 0x7ffff) + 0x80000;
addwritelookup(mem_logical_addr, addr);
mem_write_ramb_page(addr, val, &pages[addr >> 12]);
}
static void compaq_write_ramw(uint32_t addr, uint16_t val, void *priv)
static void
write_ramw(uint32_t addr, uint16_t val, void *priv)
{
addr = (addr & 0x7ffff) + 0x80000;
addwritelookup(mem_logical_addr, addr);
mem_write_ramw_page(addr, val, &pages[addr >> 12]);
addr = (addr & 0x7ffff) + 0x80000;
addwritelookup(mem_logical_addr, addr);
mem_write_ramw_page(addr, val, &pages[addr >> 12]);
}
static void compaq_write_raml(uint32_t addr, uint32_t val, void *priv)
static void
write_raml(uint32_t addr, uint32_t val, void *priv)
{
addr = (addr & 0x7ffff) + 0x80000;
addwritelookup(mem_logical_addr, addr);
mem_write_raml_page(addr, val, &pages[addr >> 12]);
addr = (addr & 0x7ffff) + 0x80000;
addwritelookup(mem_logical_addr, addr);
mem_write_raml_page(addr, val, &pages[addr >> 12]);
}
static void compaq_init(void)
void
machine_at_compaq_init(machine_t *model)
{
mem_mapping_add(&compaq_ram_mapping, 0xfa0000, 0x60000,
compaq_read_ram, compaq_read_ramw, compaq_read_raml,
compaq_write_ram, compaq_write_ramw, compaq_write_raml,
ram + 0xa0000, MEM_MAPPING_INTERNAL, NULL);
machine_at_top_remap_init(model);
mem_mapping_add(&ram_mapping, 0xfa0000, 0x60000,
read_ram, read_ramw, read_raml,
write_ram, write_ramw, write_raml,
0xa0000+ram, MEM_MAPPING_INTERNAL, NULL);
}