Lately, I've managed to implement a global interrupt service routine handler that makes handling interrupts a lot easier and Serial I/O support onto PSn00bSDK. Hopefully, I'll be releasing these updates by next week.

You can find more details about it here.

ASMPSX and ARMIPS can be used to create expansion ROM programs complete with header data. I even have a cart based CD booter program made using GNU assembler (not recommended) though its quite crude.

You can find it right here: https://github.com/Lameguy64/PSn00bSDK/ ... es/cartrom

I'll try my best to keep working on this SDK for as long as I can. I want to make this SDK at least functional enough to make some interesting things with such as getting low-level CD-ROM and better SPU support working.

Getting a EEPROM chip to work on the PS1's expansion port shouldn't be too difficult to do. Wiring up the address, data and chip select/output enable should work provided the EEPROM contains some code that the PS1 will execute. The AR and even the Xplorer's design isn't really all that complicated a...

I haven't done benchmarks between current GCC and the old GCC from PsyQ yet. Though its possible the better optimized library functions in PSn00bSDK might offset the lower performance of current GCC if its slower than old GCC.

This project has been in a bit of a hiatus as of late as my focus as switched to the PSn00b Debugger and PSn00bSDK projects. I'm still considering continuing development of this project but I'm most likely going to migrate it over to using PSn00bSDK instead of the official Programmers Tool/PsyQ SDK ...

Just pushed an update to the main Github repository that adds controller and CD-ROM support using BIOS functions. Relevant functions for controllers are _PadInit(), _PadStart() and _PadStop() and relevant functions for controllers and _InitCd() is for CD-ROM which basically wraps _96_init() with som...

Likely has something to do with how I'm currently hooking the VSync handler using the PS1 kernel's event system which is not exactly a good way of dealing with VSync IRQs as acknowledging the interrupt there breaks things like BIOS controller support which depends on the VBlank IRQ. PCSXR's high lev...

I just got controllers working using BIOS controller functions which are implemented as _PadInit(), _PadStart() and _PadStop() in the psxapi library. The advantage of using this is it automatically polls the controller data on every vsync but the downside is you can't send data to the controller yet...

http://lameguy64.tk/images/psn00bsdk-logo.svg As the name suggests, this is an amateur SDK project for the PS1 of my very own creation. I guess I've gotten so good at programming the PS1 that I ended up making my own SDK project :). Unlike other open source SDK projects for the PS1 that have come a...

Yeah, I've encountering a bunch of annoying issues with SMXTOOL that involves selection and painting attributes to faces. I just haven't found the time to squish them as of late as Scarlet Engine is in a bit of a hiatus at the moment. The source code is up on Github if anyone ants to fix it themselv...

What about a PCI/PCIE I/O card that has a parallel port? I have one that's based on the CH384 chipset but I haven't tested it with caetla yet. Though in Linux/FreeBSD the parallel port portion appears as a standard parallel port device. There are also some new motherboards as recent as socket 1151/A...

You're going to have to write your own text drawing functions but it shouldn't be too difficult if you're familiar enough with doing 2D graphics on the PS1. You essentially have to composite together a sheet of characters arranged in tile grid format (ie. 8x8 or 8x16) and you select the characters b...

Are you trying to show a sequence of BS'es? The recommended method would be to LoadBS to one part of the screen and use SetDispEnv to display the area the image was loaded to then you load the next BS on another part of the framebuffer which you then display with SetDispEnv. This closely resembles h...

I ain't listening to advice from a Unity3D Shader.

I'm proud to announce that PSn00bSDK is finally released which includes source code of this demo as an example program! While it is still currently a work in progress I believe it is currently the best starting point for making a 100% free and open source replacement of the official PS1 SDK as it ha...

setUVWH() just sets all 4 UV coordinates of a quad based on the values you've specified to its arguments. The macro basically does: obj_ft4->u0 = U_out; obj_ft4->v0 = V_out; obj_ft4->u1 = U_out+W_out; obj_ft4->v1 = V_out; obj_ft4->u2 = U_out; obj_ft4->v2 = V_out+H_out; obj_ft4->u3 = U_out+W_out; obj...

The first 15 elements of the int array are the EXEC parameters found in the header of a PS-EXE. The last element must contain a CRC32 checksum of the program text.

Its probably easier to look into the mcomms source code for the exact protocol and crc32 checksum algorithm used.

1. PSn00bSDK is a full software development kit or it's working under the Psy-Q? Yes, PSn00bSDK is entirely its own SDK that works with recent versions of the GNU GCC toolchain. It does not depend on any existing PS1 SDK. 2. It will be an open source SDK? Yes. 3. What software included in this SDK?...

hr n00bDEMO hr Username: Lameguy64 Project Title: n00bDEMO Time to Complete: 5 months SDK: PSn00bSDK Genre: Demo Latest Release: SDK Release In Development: May receive occasional updates Initial Release Date: 20-MARCH-2019 Last Date Updated: 06-APRIL-2019 (in Github repo) Controller: none Players:...