ps1-tests

Collection of PlayStation 1 tests for emulator development and hardware verification

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Tests

CD-ROM

Name	Description
disc-swap	Program to observe behavior of CD-ROM controller when opening/closing the drive cover.
getloc	Program to test the seeking/reading stat bits of the controller and Getloc commands
terminal	UART terminal for low level CDROM interaction

CPU

Name	Description
access-time	Test CPU access time to different parts of memory map
code-in-io	Check whether code execution from Scratchpad as various IO ports is possible
cop	Check how CPU behave when accessing missing/disabled coprocessors
io-access-bitwidth	Test how writes with different bitwidths behaves for different io devices

DMA

Name	Description
chain-looping	Self referencing GPU OT chain test
chopping	Check SyncMode0 chopping behaviour using GPU VRAM DMA
otc-test	DMA Channel 6 (OTC aka Ordering Table clear) unit tests

GPU

Name	Description
animated-triangle	Double buffered rotating triangle
bandwidth	Measure GPU/VRAM bandwidth
benchmark	GPU test to benchmark rasterizer for various commands
clut-cache	CLUT (Palette) cache behavior test
clipping	Test Draw Area/Clipping GP0(0xE3), GP0(0xE4) using rectangle and quad
gp0-e1	Check if GP0_E1, GPUSTAT and polygon render uses the same register internally
gpustat	Check GPUSTAT busy bits during rendering in different modes (CPU, linked list DMA, sync block DMA (with GPU DMA direction 1 and 2))
lines	Draws lines using different modes - for verifying Bresenham implementation, color blending, polyline handling
mask-bit	Check Mask bit behavior during VRAM copy operations
quad	Semi-transparent polygon commands - for testing fill rules and transparency handling
rectangles	Draws all combinations of Rectangle commands
texture-flip	Check gp0_e1.13 and gp0_e1.12 texture flip behaviour
texture-overflow	Draws textured rectangle with UV overflowing VRAM width
transparency	Draws rectangles with 4 semi-transparent blending modes
triangle	Draws Gouroud shaded equilateral triangle
uv-interpolate	Check uv/color interpolation accuracy by drawing quads with width in range of 0 - 255
vram-to-vram-overlap	Test GP0(80) VRAM-VRAM copy behaviour in overlapping rects
version-detect	Uses GP1(0x10) and GP0(0xE1) to detect GPU version

GTE

Name	Description
gte-fuzz	Executes GTE opcodes with random parameters, can be used to verify against real console
test-all	Test all register/opcodes, generated by gte-fuzz

MDEC

Name	Description
4bit	♥ Decode single 8x8 block in 4bit mode (sanitized bitstream)
8bit	♥ Decode single 8x8 block in 8bit mode (sanitized bitstream)
frame	Framework for testing MDEC decoder, default values uses DMA for all transfers, but it can be reconfigured for PIO as well (requires manual recompilation). Two executables for 15 and 24bit modes (using DMA for MDECin, MDECout and GPU)
movie	Simple MDEC in-ram bitstream player (currently 200 256x240 frames at @ 10FPS)
step-by-step-log	Manually feeds the MDEC data and monitors the MDEC status register at every step.

SPU

Name	Description
memory-transfer	Test DMA and regular IO transfers to SPU RAM
ram-sandbox	SPU memory access sandbox (used for memory-transfer test development)
stereo	Play samples on first two voices
test	Check SPU behavior (data is lost randomly on 32bit access, ok on 16bit)
toolbox	SPU register preview and simple voice playback tool

Timer

Name	Description
timers	Run Timer0,1,2 using various clock sources and sync modes and time them using busy loops and vblank interrupt

Note: Make sure your PS-EXE loaded does set default value for Stack Pointer - these .exes has SP set to 0.

Tools

Name	Description
diffvram	Diff two images and write diff png if image contents aren't exactly the same

Examples

Build

docker run -it -v $(pwd):/build jaczekanski/psn00bsdk:latest make