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Oric-1 and Oric Atmos re-implementation on a modern FPGA.

There is one version made and ported byGehstock at github , but it's far to be functional like an Oric. Gehstock's version for MiST board was realeased as a proof of concept with only 32KB RAM (no oric existed with that memory, only16K ,48K and64K)(64KB is real RAM) so there were errors managingHIRES mode) and no way to load audio tapes and lots of graphics errors on screen.

This project began in november 2019 with the aim to preserve the Oric's computer family into fpga.

Actually Oric 1, Oric Atmos and Microdisc are fully functional.

• ULA HCS10017.
• VIA 6522.
• CPU 6502.
• Full 64KB ofRAM.
• Keyboard managed by GI-8912.
• Sound (AY-3-8910).
• switchableROM (between 1.1a ATMOS version and 1.0 ORIC 1 version).
• Tape loading working (via audio cable on the RX pin).
• Oric Microdisc implementation víaCUMULUS
• Disc Read / Write operations fully supported with EDSK (The same as amstrad cpc) format.
• Disc Sedoric/OricDOS Operating System Loading fully working

• Debugging, checking for possible bugs at video and improving the core.

• None at the moment..., but if You find one, let Us know, please.

• Create a directory called ORIC at your sd's root and put inside the disc images to work on

  • Once the core is launched:

  Keyboard Shorcuts:

  • F10 - NMI button, acts like original ORIC NMI
  • F11 - Reset. Use F11 to reboot once a DSK is selected at OSD
  • F12 - OSD Main Menu.

  

  • Activate FDC controller at OSD MENU
  • Select an Image from /ORIC directory, exit OSD and press F11. System will boot inmeddiately

• Ron Rodritty: Team coordination and QA testing.

• Fernando Mosquera: FPGA guru.

• Subcritical: Verilog and VHDL.

• ManuFerHi: Hardware consulting.

• Chema Enguita: Oric Software gurú

• SiliceBit: Oric hardware Gurú

• ZXMarce: Hardware support 24/7...

• Ramón Martínez: Oric hardware, Some software, and fpga coding.

• Slingshot: SDRAM work and advisor.

• Kudos to: Sorgelig, Gehstock, DesUBIKado, RetroWiki and friends.

Despite of the .dsk extension, Disk images are the defacto standardedsk for disk preservation (also known as "AMSTRAD CPC EXTENDED FORMAT"). To convert imagesfrom the oric "dsk" to the needed "dsk" you need the [HxCFloppyEmulator software] (https://hxc2001.com/download/floppy_drive_emulator/HxCFloppyEmulator_soft.zip).

Load the disk oric disk and export it asCPC DSK file the resulting image should load flawlessly on the Oric.This images are also compatible with fastfloppy firmware on gothek, cuamana reborn, etc working with real orics.

almost all the Oric games dont have joystick support, but you can "map" themost used keys to a joystick adding thist to yourmist.ini file.

[oric]joy_key_map=1,4f     ; cursor rightjoy_key_map=2,50     ; cursor leftjoy_key_map=4,51     ; cursor downjoy_key_map=8,52     ; cursor upjoy_key_map=10,2c    ; button A as SPACEjoy_key_map=40,28    ; button SEL as ENTERjoy_key_map=80,44    ; button STA as F11

In the dsk directory, you will find some disk images in the proper format.

• SEDORIC 4.0 operating System disk image redistributed with permission from Symoon.
• Blake's 7 game, redistributed with permission of chema enguita you can download manual and additional info fromDefence force
• Oricium game, redistributed with permission of chema enguita you can download manual and additional info fromDefence force
• Space:1999 game, redistributed with permission of chema enguita you can download manual and additional info fromDefence force
• 1337 game, redistributed with permission of chema enguita you can download manual and additional info fromDefence force
• Torreoscura game, redistributed with permission of Bieno. you can download manual and additional info fromitch.io
• El prisionero game, redistributed with permission of Bieno. you can download manual and additional info fromitch.io