PCXT

Cores

• PCXT
• PCXT (by @spark2k06)
• PCXT DeMiSTify (by @somhi)

• XT Core - Math Coprocessors, 8087 -> 80387 (same Pentium ISA) and new cores

PCXT

MiSTer PCXT Forum

• MiSTer PCXT Forum

CP/M-86

• Select IBM PCXT model
• Attach cpm86_8Mb.vhd (rename .img to .vhd) file to IDE 0-0
• Select pcxt_5160_09MAY86 as PCXT BIOS (or pcxt_ibm.rom bios)

Tandy-1000

Instrucciones rápidas para configurar el core de PC-XT como Tandy 1000

• Descargar las BIOS necesarias y colocarlas en el directorio game/PCXT correspondiente.
• Entrar en el menú de System & BIOS y elegir Model Tandy 1000
• En PCXT Bios: pcxt_pcxt31.rom
• En Tandy BIOS: tandy.rom -> TANDY1T13.ROM (Tandy rom v.01.01.00)
• En EC00 BIOS: ide_xtl.rom
• Select CPU Speed: 4.77 MHz

• ROMs Tandy: retrograde.inf.ua - Tandy Roms

How to play Abadia game (Tandy-1000)

• Use ide_xtl.rom for hdd support.
• Use common Tandy bios (tandy1t1.rom or tandy1t13.rom).
• Not necessary to mount pcxt_xtsergey.rom bios (it's a Tandy 1000 not a PC XT)

• Mount AbadiaDelCrimen.img or hdd_tandy.vhd
• Configure CPU Speed to 7MHz.
• Reset & apply settings
• When BIOS starts, pulse ESC to jump checks.
• And pulse A to boot from HDD.

With MRA(rom) & MGL(games) files:

<misterromdescription>
    <name>Tandy1000</name>
    <rbf>pcxt</rbf>
    <setname>Tandy1000</setname>
    <rom index="1" zip="t1k_0103.zip">
        <part name="TANDY1T1.rom"/>
    </rom>
    <rom index="2" zip="xtide_200b3.zip">
        <part name="ide_xtl.rom"/>
    </rom>
</misterromdescription>

<mistergamedescription>
    <rbf>_Computer/PCXT</rbf>
    <setname same_dir="1">Tandy1000-Abadia</setname>
    <file delay="1" type="f" index="0" path="Tandy-Abadia/AbadiaDelCrimen.img"/>
    <file delay="1" type="s" index="2" path="Tandy-1000/hdd_tandy.vhd"/>
</mistergamedescription>

FreeDOS

• Freedos_HD.img to .vhd
• ROMs: ide_xtl.rom, pcxt_micro8088.rom
• CPU speed: PC/AT 3.5MHz

DOS v1.1

• DOS v1.1

Windows 386 v2.1

• Windows 386 v2.1 (Vintage Computer)

Bios

BIOS History

• Commodore PC (Zimmers)
• Commodore PC (forum)

• Commodore PC-10-III
• Commodore PC (CBM ROMs) (needs pwd)

• Super PC/Turbo XT BIOS 3.1
• Super PC/Turbo XT BIOS for Intel 8088 or NEC "V20" Motherboards

• IBM BIOS (5150 & 5160)
• IBM 5150 BIOS Dumps
• IBM 5160 BIOS revisions
• IBM 5160
• IBM XT - Type 5160
• IBM PC XT 5160 BIOS versions

• IBM PC BIOS ASM Sources (GitHub)

• IBM PS1 2011 (ROM patched for XTIDE)

• GLaBIOS

• Tandy BIOS (v2 has DOS v2.11 in ROM)

• SeaBIOS ao486
• SeaBIOS
• SeaBIOS Downloads

• ao486 BIOS (and Drivers)

IBM 5160 PCXT Bios

IBM 5160 - Motherboard Switch/Jumper Settings

• Link
• These settings apply to both versions of the 5160 motherboard, and apply to all three BIOS revisions for the 5160:

IBM ROM BASIC

• IBM ROM BASIC

XT-IDE Universal BIOS (aka XUB)

• XUB versions
• XT-IDE Problems

Build your own XTIDE Universal BIOS from scratch!

https://www.youtube.com/watch?v=ilEZB5pY0VI

-Resources:

• XTIDE Build Instructions: https://www.xtideuniversalbios.org/wiki/BuildInstructions
• XTIDE Binaries: https://xtideuniversalbios.org/binaries/
• XTIDE Wiki: https://www.lo-tech.co.uk/wiki/XTIDE_Universal_BIOS
• XTIDE Help: https://minuszerodegrees.net/xtide/XUB/XUB.htm

Multi-Floppy BIOS - Floppy Disk Controllers (FDCs)

• Multi-Floppy BIOS Extension by Sergey Kiselev
• Multi-Floppy BIOS (v2.2)

• Sergey's Projects (8088 BIOS & Multi-Floppy BIOS Extension)

Commodore PC

• PC 8088 Information http://ftp.zimmers.net/anonftp/pub/cbm-pc/documents/PC-8088-Information.txt

Commodore PC BIOS

• PC-1 https://theretroweb.com/motherboards/s/commodore-pc-1-part-380074

• PC-10

  • https://oldcomputer.info/pc/commodore20/index.htm

  • https://www.zimmers.net/anonftp/pub/cbm-pc/firmware/pc10/index.html

  • https://oldcomputer.info/keep/c/museum/pc/Commodore_PC

• 64Kb ROM

copy /y /b cbm-pc10c-v441.bin+cbm-pc10c-v441.bin cbm-pc10c-v441_64k.rom

• How to enter BIOS Setup (Commodore PC) Press Ctrl+Alt+Esc before you get the ‘Starting MS-DOS…’ prompt, but after the memory test (if any).

Commodore PC Software

CBM PC Software (Zimmers)

8-bit IDE-XT Hard Drives Demystified (Tandy-1000)

• Commodore PC boot (Youtube)

• All about the 8-bit IDE-XT (a.k.a. XTA) hard drives and interface cards that are often unknown among vintage computer enthusiasts, or dismissed as rare, proprietary, and unreliable.

86Box Emu

• Support for the Commodore PC 10/20-III line
• Support for the Commodore PC 10/20-III line (maybe Colt/PC-1 too)

Poseidon board

set_location_assignment PIN_AE5 -to RX_UART
set_location_assignment PIN_AF4 -to TX_UART

Pines Tx y Rx

Pines correctos para conector 4 pines:

Rx PIN_C5
Tx PIN_B2

Rampa cores:

TX1,RX1 -> 4 pines port!!
TX,RX y TX2,RX2 -> Expansion port!!

• UART
  uart_tx -> D1
  uart_rx -> A3

set_location_assignment PIN_D1 -to BUS_TX
set_location_assignment PIN_A3 -to BUS_RX
set_location_assignment PIN_B2 -to BUS_TX2
set_location_assignment PIN_C5 -to BUS_RX2

BUS	PIN
BUS_TX	PIN_D1
BUS_RX	PIN_A3
BUS_TX1	PIN_AF4
BUS_RX1	PIN_AE5
BUS_TX2	PIN_B2
BUS_RX2	PIN_C55

Atari PC

• Microsoft MS-DOS 3.21 and GW-BASIC 3.2 “Revision B” https://www.ataripc.net/pc3-8088/media/pc3-system-disks-ms-dos/

Docker

1. Clonas el repositorio:

cd ~
mkdir pcxt
cd pcxt
git clone https://github.com/spark2k06/PCXT_MiSTer
cd PCXT_MiSTer

2. Te cambias a la rama ega-test:

git branch -a
* main
  remotes/origin/HEAD -> origin/main
  remotes/origin/ega-test
  remotes/origin/main

git switch -c ega-test origin/ega-test
branch 'ega-test' set up to track 'origin/ega-test'.
Switched to a new branch 'ega-test'

git branch
* ega-test
  main

3. Cambias HGC en config.tcl a HGC = 0
4. Instalas docker:

sudo apt update
sudo apt install docker.io -y

5. Arrancas el servicio de docker si no lo está ya:

sudo systemctl enable --now docker

6. Y, por último, ya sintetizas el core siempre que quieras con este comando:

docker run --rm -v $(pwd):/build -w /build raetro/quartus:mister quartus_sh --flow compile PCXT.qsf