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Re-added fully complete and working Olivetti and NCR 386SX-class machines.

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Moved Olivetti M290 to dev branch.
(Very) partially implemented Olivetti EVA gate array (used in M290).
This commit is contained in:
EngiNerd89
2021-02-11 19:07:24 +01:00
parent f026ac6eea
commit a2c53e1a94
8 changed files with 304 additions and 45 deletions
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1
src/chipset/CMakeLists.txt
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@@ -18,6 +18,7 @@ add_library(chipset OBJECT acc2168.c cs8230.c ali1217.c ali1429.c headland.c int
neat.c opti495.c opti895.c opti5x7.c scamp.c scat.c via_vt82c49x.c
via_vt82c505.c sis_85c310.c sis_85c4xx.c sis_85c496.c sis_85c50x.c
gc100.c
olivetti_eva.c
opti283.c opti291.c via_apollo.c via_pipc.c wd76c10.c
vl82c480.c)

166
src/chipset/olivetti_eva.c Normal file
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@@ -0,0 +1,166 @@
/*
* 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.
*
* Implementation of the Olivetti EVA (98/86) Gate Array.
*
* Note: This chipset has no datasheet, everything were done via
* reverse engineering the BIOS of various machines using it.
*
* Authors: EngiNerd <webmaster.crrc@yahoo.it>
*
* Copyright 2020-2021 EngiNerd
*/
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
#define HAVE_STDARG_H
#include <86box/86box.h>
#include "cpu.h"
#include <86box/timer.h>
#include <86box/io.h>
#include <86box/device.h>
#include <86box/chipset.h>
#include <86box/video.h>
#include <86box/mem.h>
typedef struct
{
uint8_t reg_065;
uint8_t reg_067;
uint8_t reg_069;
} olivetti_eva_t;
#ifdef ENABLE_OLIVETTI_EVA_LOG
int olivetti_eva_do_log = ENABLE_OLIVETTI_EVA_LOG;
static void
olivetti_eva_log(const char *fmt, ...)
{
va_list ap;
if (olivetti_eva_do_log) {
va_start(ap, fmt);
pclog_ex(fmt, ap);
va_end(ap);
}
}
#else
#define olivetti_eva_log(fmt, ...)
#endif
static void
olivetti_eva_write(uint16_t addr, uint8_t val, void *priv)
{
olivetti_eva_t *dev = (olivetti_eva_t *) priv;
olivetti_eva_log("Olivetti EVA Gate Array: Write %02x at %02x\n", val, addr);
switch (addr) {
case 0x065:
dev->reg_065 = val;
break;
case 0x067:
dev->reg_067 = val;
break;
case 0x069:
dev->reg_069 = val;
/*
* Unfortunately, if triggered, the BIOS remapping function fails causing
* a fatal error. Therefore, this code section is currently commented.
*/
// if (val & 1){
// /*
// * Set the register to 7 or above for the BIOS to trigger the
// * memory remapping function if shadowing is active.
// */
// dev->reg_069 = 0x7;
// }
// if (val & 8) {
// /*
// * Activate shadowing for region e0000-fffff
// */
// mem_remap_top(256);
// mem_set_mem_state_both(0xa0000, 0x60000, MEM_READ_INTERNAL | MEM_WRITE_INTERNAL);
// }
break;
}
}
static uint8_t
olivetti_eva_read(uint16_t addr, void *priv)
{
olivetti_eva_t *dev = (olivetti_eva_t *) priv;
uint8_t ret = 0xff;
switch (addr) {
case 0x065:
ret = dev->reg_065;
break;
case 0x067:
/* never happens */
ret = dev->reg_067;
break;
case 0x069:
ret = dev->reg_069;
break;
}
olivetti_eva_log("Olivetti EVA Gate Array: Read %02x at %02x\n", ret, addr);
return ret;
}
static void
olivetti_eva_close(void *priv)
{
olivetti_eva_t *dev = (olivetti_eva_t *) priv;
free(dev);
}
static void *
olivetti_eva_init(const device_t *info)
{
olivetti_eva_t *dev = (olivetti_eva_t *) malloc(sizeof(olivetti_eva_t));
memset(dev, 0, sizeof(olivetti_eva_t));
/* GA98 registers */
dev->reg_065 = 0x00;
/* RAM page registers: never read, only set */
dev->reg_067 = 0x00;
/* RAM enable registers */
dev->reg_069 = 0x0;
io_sethandler(0x0065, 0x0001, olivetti_eva_read, NULL, NULL, olivetti_eva_write, NULL, NULL, dev);
io_sethandler(0x0067, 0x0001, olivetti_eva_read, NULL, NULL, olivetti_eva_write, NULL, NULL, dev);
io_sethandler(0x0069, 0x0001, olivetti_eva_read, NULL, NULL, olivetti_eva_write, NULL, NULL, dev);
/* When shadowing is not enabled in BIOS, all upper memory is available as XMS */
mem_remap_top(384);
/*
* Default settings when NVRAM is cleared activate shadowing.
* Thus, to avoid boot errors, remap only 256k from UMB to XMS.
* Remove this block once BIOS memory remapping works.
*/
mem_remap_top(256);
return dev;
}
const device_t olivetti_eva_device = {
"Olivetti EVA Gate Array",
0,
0,
olivetti_eva_init, olivetti_eva_close, NULL,
{ NULL }, NULL, NULL,
NULL
};

3
src/include/86box/chipset.h
View File

@@ -147,4 +147,7 @@ extern const device_t wd76c10_device;
extern const device_t phoenix_486_jumper_device;
extern const device_t vpc2007_device;
#if defined(DEV_BRANCH) && defined(USE_OLIVETTI)
extern const device_t olivetti_eva_device;
#endif
#endif /*EMU_CHIPSET_H*/

12
src/include/86box/machine.h
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@@ -258,6 +258,10 @@ extern int machine_at_deskmaster286_init(const machine_t *);
extern int machine_at_ncrpc8_init(const machine_t *);
extern int machine_at_ncr3302_init(const machine_t *);
#if defined(DEV_BRANCH) && defined(USE_OLIVETTI)
extern int machine_at_olim290_init(const machine_t *);
#endif
extern int machine_at_shuttle386sx_init(const machine_t *);
extern int machine_at_adi386sx_init(const machine_t *);
extern int machine_at_commodore_sl386sx16_init(const machine_t *);
@@ -272,12 +276,18 @@ extern int machine_at_arb1375_init(const machine_t *);
extern int machine_at_pja511m_init(const machine_t *);
#endif
extern int machine_at_ncrpc916sx_init(const machine_t *);
extern int machine_at_olim300_08_init(const machine_t *);
extern int machine_at_olim300_15_init(const machine_t *);
#ifdef EMU_DEVICE_H
extern const device_t *at_ama932j_get_device(void);
extern const device_t *at_flytech386_get_device(void);
extern const device_t *at_commodore_sl386sx25_get_device(void);
extern const device_t *at_spc4620p_get_device(void);
extern const device_t *at_spc6033p_get_device(void);
extern const device_t *at_m300_08_get_device(void);
#endif
/* m_at_386dx_486.c */
@@ -612,8 +622,6 @@ extern int machine_xt_ncrpc4i_init(const machine_t *);
extern int machine_xt_mpc1600_init(const machine_t *);
extern int machine_xt_eaglepcspirit_init(const machine_t *);
extern int machine_xt_multitechpc700_init(const machine_t *);
extern int machine_xt_p3105_init(const machine_t *);
extern int machine_xt_p3120_init(const machine_t *);
extern int machine_xt_iskra3104_init(const machine_t *);

147
src/machine/m_at_286_386sx.c
View File

@@ -35,6 +35,7 @@
#include <86box/rom.h>
#include <86box/fdd.h>
#include <86box/fdc.h>
#include <86box/fdc_ext.h>
#include <86box/hdc.h>
#include <86box/sio.h>
#include <86box/serial.h>
@@ -672,47 +673,6 @@ machine_at_pja511m_init(const machine_t *model)
}
#endif
static uint8_t
m290_read(uint16_t port, void *priv)
{
uint8_t ret = 0x0;
switch (port) {
/*
* port 69:
* dip-switch bank on mainboard (off=1)
* bit 3 - use OCG/CGA display adapter (off) / other display adapter (on)
*/
case 0x69:
if(video_is_cga())
ret |= 0x8|0x4;
ret |= 0x1|0x2;
}
return (ret);
}
int
machine_at_olim290_init(const machine_t *model)
{
int ret;
ret = bios_load_linear(L"roms/machines/olivetti_m290/m290_pep3_1.25.bin",
0x000f0000, 65536, 0);
if (bios_only || !ret)
return ret;
machine_at_common_init(model);
device_add(&keyboard_at_device);
device_add(&fdc_at_device);
io_sethandler(0x069, 1, m290_read, NULL, NULL, NULL, NULL, NULL, NULL);
return ret;
}
/*
* Current bugs:
* - ctrl-alt-del produces an 8042 error
@@ -766,3 +726,108 @@ machine_at_ncr3302_init(const machine_t *model)
return ret;
}
/*
* Current bugs:
* - soft-reboot after saving CMOS settings/pressing ctrl-alt-del produces an 8042 error
*/
int
machine_at_ncrpc916sx_init(const machine_t *model)
{
int ret;
ret = bios_load_interleaved(L"roms/machines/ncr_pc916sx/ncr_386sx_u46-17_7.3.bin",
L"roms/machines/ncr_pc916sx/ncr_386sx_u12-19_7.3.bin",
0x000f0000, 65536, 0);
if (bios_only || !ret)
return ret;
machine_at_common_init(model);
device_add(&keyboard_at_ncr_device);
mem_remap_top(384);
device_add(&fdc_at_device);
return ret;
}
#if defined(DEV_BRANCH) && defined(USE_OLIVETTI)
int
machine_at_olim290_init(const machine_t *model)
{
int ret;
ret = bios_load_linear(L"roms/machines/olivetti_m290/m290_pep3_1.25.bin",
0x000f0000, 65536, 0);
if (bios_only || !ret)
return ret;
machine_at_common_init(model);
device_add(&keyboard_at_olivetti_device);
if (fdc_type == FDC_INTERNAL)
device_add(&fdc_at_device);
device_add(&olivetti_eva_device);
return ret;
}
#endif
const device_t *
at_m300_08_get_device(void)
{
return &oti067_m300_device;
}
int
machine_at_olim300_08_init(const machine_t *model)
{
int ret;
ret = bios_load_linear(L"roms/machines/olivetti_m300_08/BIOS.ROM",
0x000f0000, 65536, 0);
if (bios_only || !ret)
return ret;
machine_at_common_init(model);
device_add(&opti283_device);
device_add(&keyboard_ps2_olivetti_device);
device_add(&pc87310_ide_device);
if (gfxcard == VID_INTERNAL)
device_add(&oti067_m300_device);
return ret;
}
/* Almost identical to M300-08, save for CPU speed, VRAM, and BIOS identification string */
int
machine_at_olim300_15_init(const machine_t *model)
{
int ret;
ret = bios_load_linear(L"roms/machines/olivetti_m300_15/BIOS.ROM",
0x000f0000, 65536, 0);
if (bios_only || !ret)
return ret;
machine_at_common_init(model);
device_add(&opti283_device);
device_add(&keyboard_ps2_olivetti_device);
device_add(&pc87310_ide_device);
/* Stock VRAM is maxed out, so no need to expose video card config */
if (gfxcard == VID_INTERNAL)
device_add(&oti067_m300_device);
return ret;
}

2
src/machine/m_xt_philips.c
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@@ -46,8 +46,6 @@ typedef struct
uint8_t reg;
} philips_t;
#define ENABLE_philips_LOG 1
#ifdef ENABLE_philips_LOG
int philips_do_log = ENABLE_philips_LOG;
static void

6
src/machine/machine_table.c
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@@ -122,6 +122,9 @@ const machine_t machines[] = {
{ "[ISA] Compaq Portable III", "portableiii", MACHINE_TYPE_286, CPU_PKG_286, 0, 0, 0, 0, 0, 0, 0, MACHINE_AT | MACHINE_VIDEO, 640, 16384, 128, 127, machine_at_portableiii_init, at_cpqiii_get_device },
{ "[ISA] MR 286 clone", "mr286", MACHINE_TYPE_286, CPU_PKG_286, 0, 0, 0, 0, 0, 0, 0, MACHINE_AT | MACHINE_IDE, 512, 16384, 128, 127, machine_at_mr286_init, NULL },
{ "[ISA] NCR PC8/810/710/3390/3392", "ncr_pc8", MACHINE_TYPE_286, CPU_PKG_286, 0, 0, 0, 0, 0, 0, 0, MACHINE_AT, 512, 16384, 128, 127, machine_at_ncrpc8_init, NULL },
#if defined(DEV_BRANCH) && defined(USE_OLIVETTI)
{ "[ISA] Olivetti M290", "olivetti_m290", MACHINE_TYPE_286, CPU_PKG_286, 0, 0, 0, 0, 0, 0, 0, MACHINE_AT, 640, 16384, 128, 127, machine_at_olim290_init, NULL },
#endif
#if defined(DEV_BRANCH) && defined(USE_OPEN_AT)
{ "[ISA] OpenAT", "open_at", MACHINE_TYPE_286, CPU_PKG_286, 0, 0, 0, 0, 0, 0, 0, MACHINE_AT, 256, 15872, 128, 63, machine_at_open_at_init, NULL },
#endif
@@ -149,6 +152,7 @@ const machine_t machines[] = {
/* 386SX machines */
{ "[ISA] IBM PS/1 model 2121", "ibmps1_2121", MACHINE_TYPE_386SX, CPU_PKG_386SX, 0, 0, 0, 0, 0, 0, 0, MACHINE_AT | MACHINE_BUS_PS2 | MACHINE_IDE | MACHINE_VIDEO_FIXED, 2048, 6144,1024, 63, machine_ps1_m2121_init, NULL },
{ "[ISA] IBM PS/1 m.2121+ISA", "ibmps1_2121_isa", MACHINE_TYPE_386SX, CPU_PKG_386SX, 0, 0, 0, 0, 0, 0, 0, MACHINE_AT | MACHINE_BUS_PS2 | MACHINE_IDE | MACHINE_VIDEO, 2048, 6144,1024, 63, machine_ps1_m2121_init, NULL },
{ "[ISA] NCR PC916SX", "ncr_pc916sx", MACHINE_TYPE_386SX, CPU_PKG_386SX, 0, 0, 0, 0, 0, 0, 0, MACHINE_AT, 1024, 16384, 128, 127, machine_at_ncrpc916sx_init, NULL },
#if defined(DEV_BRANCH) && defined(USE_M6117)
{ "[ALi M6117D] Acrosser AR-B1375", "arb1375", MACHINE_TYPE_386SX, CPU_PKG_M6117, 0, 0, 0, 0, 0, 0, 0, MACHINE_AT | MACHINE_BUS_PS2 | MACHINE_IDE, 1024, 32768,1024, 127, machine_at_arb1375_init, NULL },
{ "[ALi M6117D] Acrosser PJ-A511M", "pja511m", MACHINE_TYPE_386SX, CPU_PKG_M6117, 0, 0, 0, 0, 0, 0, 0, MACHINE_AT | MACHINE_BUS_PS2 | MACHINE_IDE, 1024, 32768,1024, 127, machine_at_pja511m_init, NULL },
@@ -159,6 +163,8 @@ const machine_t machines[] = {
{ "[Intel 82335] Shuttle 386SX", "shuttle386sx", MACHINE_TYPE_386SX, CPU_PKG_386SX, 0, 0, 0, 0, 0, 0, 0, MACHINE_AT, 512, 8192, 128, 127, machine_at_shuttle386sx_init, NULL },
{ "[NEAT] Commodore SL386SX-16", "cbm_sl386sx16", MACHINE_TYPE_386SX, CPU_PKG_386SX, 0, 0, 0, 0, 0, 0, 0, MACHINE_AT | MACHINE_BUS_PS2 | MACHINE_IDE, 1024, 8192, 512, 127, machine_at_commodore_sl386sx16_init, NULL },
{ "[NEAT] DTK 386SX clone", "dtk386", MACHINE_TYPE_386SX, CPU_PKG_386SX, 0, 0, 0, 0, 0, 0, 0, MACHINE_AT, 512, 8192, 128, 127, machine_at_neat_init, NULL },
{ "[OPTi 283] Olivetti M300-08", "olivetti_m300_08", MACHINE_TYPE_386SX, CPU_PKG_386SX, 0, 20000000, 20000000, 0, 0, 0, 0, MACHINE_AT | MACHINE_BUS_PS2 | MACHINE_IDE | MACHINE_VIDEO, 2048, 16384, 2048, 127, machine_at_olim300_08_init, at_m300_08_get_device },
{ "[OPTi 283] Olivetti M300-15", "olivetti_m300_15", MACHINE_TYPE_386SX, CPU_PKG_386SX, 0, 25000000, 25000000, 0, 0, 0, 0, MACHINE_AT | MACHINE_BUS_PS2 | MACHINE_IDE | MACHINE_VIDEO, 2048, 16384, 2048, 127, machine_at_olim300_15_init, NULL },
{ "[OPTi 291] DTK PPM-3333P", "awardsx", MACHINE_TYPE_386SX, CPU_PKG_386SX, 0, 0, 0, 0, 0, 0, 0, MACHINE_AT, 1024, 16384, 1024, 127, machine_at_awardsx_init, NULL },
{ "[SCAMP] Commodore SL386SX-25", "cbm_sl386sx25", MACHINE_TYPE_386SX, CPU_PKG_386SX, 0, 0, 0, 0, 0, 0, 0, MACHINE_AT | MACHINE_BUS_PS2 | MACHINE_IDE | MACHINE_VIDEO, 1024, 8192, 512, 127, machine_at_commodore_sl386sx25_init, at_commodore_sl386sx25_get_device },
{ "[SCAMP] Samsung SPC-6033P", "spc6033p", MACHINE_TYPE_386SX, CPU_PKG_386SX, 0, 0, 0, 0, 0, 0, 0, MACHINE_AT | MACHINE_BUS_PS2 | MACHINE_IDE | MACHINE_VIDEO, 2048, 12288, 2048, 127, machine_at_spc6033p_init, at_spc6033p_get_device },

12
src/win/Makefile.mingw
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@@ -102,6 +102,9 @@ ifeq ($(DEV_BUILD), y)
ifndef USE_VECT486VL
USE_VECT486VL := y
endif
ifndef OLIVETTI
OLIVETTI := y
endif
else
ifndef DEBUG
DEBUG := n
@@ -178,6 +181,9 @@ else
ifndef USE_VECT486VL
USE_VECT486VL := n
endif
ifndef OLIVETTI
OLIVETTI := n
endif
endif
# Defaults for several build options (possibly defined in a chained file.)
@@ -586,6 +592,11 @@ ifeq ($(USE_VECT486VL), y)
OPTS += -DUSE_VECT486VL
endif
ifeq ($(OLIVETTI), y)
OPTS += -DUSE_OLIVETTI
endif
endif
@@ -620,6 +631,7 @@ CHIPSETOBJ := acc2168.o cs8230.o ali1217.o ali1429.o headland.o intel_82335.o cs
neat.o opti495.o opti895.o opti5x7.o scamp.o scat.o via_vt82c49x.o via_vt82c505.o \
sis_85c310.o sis_85c4xx.o sis_85c496.o sis_85c50x.o opti283.o opti291.o \
gc100.o \
olivetti_eva.o \
via_apollo.o via_pipc.o wd76c10.o vl82c480.o
MCHOBJ := machine.o machine_table.o \