unirom8_bootdisc_and_firmware_for_ps1
PsyCross
| unirom8_bootdisc_and_firmware_for_ps1 | PsyCross | |
|---|---|---|
| 16 | 1 | |
| 160 | 42 | |
| - | - | |
| 0.0 | 6.5 | |
| over 1 year ago | 3 days ago | |
| C | ||
| - | MIT License |
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unirom8_bootdisc_and_firmware_for_ps1
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PS1 Programming Course with MIPS Assembly and C
There are homebrew tools that can be installed on a PS1 memory card [1] and allow for executables to be loaded from a host machine into RAM through the serial port on the back of the console, in a similar way to what Sony's official Net Yaroze loader did back in the day. These tools can also use undocumented CD-ROM drive commands to disable region checks without the need for a modchip, provide semihosting (host filesystem access) and so on.
On the PS2 it's slightly more complicated, as there is no way to launch the "native" PS1 backwards compatibility mode other than to use a modchip (or firmware mod on some models) and burn the executable onto a disc; the serial port is not exposed either, making debugging much harder. It can still be done, but it's much easier to just use an actual PS1.
[1]: https://github.com/JonathanDotCel/unirom8_bootdisc_and_firmw...
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Tonyhax isn’t opening on PSX (SCPH-9001)
I just tried it myself, using an unmodded SCPH-9001, and original CD (Tomb Raider II, NTSC:U/C to be precise) and a burned copy of the Unirom 8.0K installer disc (from https://github.com/JonathanDotCel/unirom8_bootdisc_and_firmware_for_ps1/releases/), and it booted without problems.
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PSA: You don’t need a modchip. There are softmods for PS1.
FreePSXBoot: https://github.com/brad-lin/FreePSXBoot Unirom: https://github.com/JonathanDotCel/unirom8_bootdisc_and_firmware_for_ps1 TonyHax: https://github.com/socram8888/tonyhax
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read burned disc without modding?
Burn a CD with the latest unirom CD: https://github.com/JonathanDotCel/unirom8_bootdisc_and_firmware_for_ps1
- MemCard Pro with original discs- hard to organize?
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can I softmod a playstation 1 with freePSXboot without a PS2?
Yes. An alternative would be to swap trick with original game and the UNIROM burned disc. You can download it from its GitHub page. https://github.com/JonathanDotCel/unirom8_bootdisc_and_firmware_for_ps1
- How do you use the GameShark cartridge for backups? I have the lid button taped down, and original game in, but the disc never stops spinning to allow swapping in the backup. Neither at the main menu or any of these available options causes it to stop spinning. It’s version 1.99 GS cart on 5501 PS1.
- Can anyone translate this error?
- PSX Game Swap Troubles
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Is there a way to potentially recover these saves?
- Unirom also has a memory card manager that let's you see and undelete saves. You need either a CD-R with Unirom burned to it (on a modchipped PS or with a swap trick), or a memory card with FreePSXBoot using Unirom (on any non-chipped PS).
PsyCross
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PS1 Programming Course with MIPS Assembly and C
If you want a source-compatible reimplementation for modern systems there's https://github.com/OpenDriver2/PsyCross
What are some alternatives?
memcardrex - Advanced PlayStation 1 Memory Card editor
tonyhax - Japanese/American/European Universal PS1 Backup loader fork for ALL PS1 consoles, and PS2 console models SCPH-10000-SCPH-39004.
FreePSXBoot - Exploit to allow loading arbitrary code on the PSX using only a memory card (no game needed)
memcarduino - Arduino PlayStation 1 Memory Card reader
PicoMemcard - Emulating PSX Memory Card (or controller) using a Raspberry Pi Pico
pcsx-redux - The PCSX-Redux project is a collection of tools, research, hardware design, and libraries aiming at development and reverse engineering on the PlayStation 1. The core product itself, PCSX-Redux, is yet another fork of the Playstation emulator, PCSX.