User talk:Sour

CPU Tests

Name	Description	Author	Forum
branch_timing_tests	These ROMs test timing of the branch instruction, including edge cases	blargg
cpu_dummy_reads	Tests the CPU's dummy reads	blargg	link
cpu_dummy_writes	Tests the CPU's dummy writes	bisqwit	link
cpu_exec_space	Verifies that the CPU can execute code from any possible memory location, even if that is mapped as I/O space	bisqwit	link
cpu_flag_concurrency	Unsure what results are meant to be, see thread for more info.	bisqwit	link
cpu_interrupts_v2	Tests the behavior and timing of CPU in the presence of interrupts, both IRQ and NMI; see CPU interrupts.	blargg
cpu_reset	Tests CPU registers just after power and changes during reset, and that RAM isn't changed during reset.	blargg
cpu_timing_test6	This program tests instruction timing for all official and unofficial NES 6502 instructions except the 8 branch instructions (Bxx) and the 12 halt instructions (HLT)	blargg
instr_misc	Tests some miscellaneous aspects of instructions, including behavior when 16-bit address wraps around, and dummy reads.	blargg
instr_test_v5	Tests official and unofficial CPU instructions and lists which ones failed. It will work even if emulator has no PPU and only supports NROM, writing a copy of output to $6000 (see readme). This more thoroughly tests instructions, but can't help you figure out what's wrong beyond what instruction(s) are failing, so it's better for testing mature CPU emulators.	blargg
instr_timing	Tests timing of all instructions, including unofficial ones, page-crossing, etc.	blargg
nestest	fairly thoroughly tests CPU operation. This is the best test to start with when getting a CPU emulator working for the first time. Start execution at $C000 and compare execution with a log from Nintendulator, an emulator whose CPU is known to work correctly (apart from some details of the power-up state).	?

PPU Tests

Name	Description	Author	Forum
blargg_ppu_tests_2005.09.15b	Miscellaneous PPU tests (palette ram, sprite ram, etc.)	blargg	link
full_palette	Displays the full palette with all emphasis states, demonstrates direct PPU color control	blargg	link
nmi_sync	Verifies NMI timing by creating a specific pattern on the screen (NTSC & PAL versions)	blargg	link
oam_read	Tests OAM reading ($2004), being sure it reads the byte from OAM at the current address in $2003.	blargg
oam_stress	Thoroughly tests OAM address ($2003) and read/write ($2004)	blargg
ppu_open_bus	Tests behavior when reading from open-bus PPU bits/registers	blargg
ppu_read_buffer	Mammoth test pack tests many aspects of the NES system, mostly centering around the PPU $2007 read buffer	bisqwit	link
ppu_sprite_hit	Tests sprite 0 hit behavior and timing	blargg
ppu_sprite_overflow	Tests sprite overflow behavior and timing	blargg
ppu_vbl_nmi	Tests the behavior and timing of the NTSC PPU's VBL flag, NMI enable, and NMI interrupt. Timing is tested to an accuracy of one PPU clock.	blargg
scanline	Displays a test screen that will contain glitches if certain portions of the emulation are not perfect.	Quietust
sprite_hit_tests_2005.10.05	Generally the same as ppu_sprite_hit (older revision of the tests - ppu_sprite_hit is most likely better)	blargg
sprite_overflow_tests	Generally the same as ppu_sprite_overflow (older revision of the tests - ppu_sprite_overflow is most likely better)	blargg
sprdma_and_dmc_dma	Tests the cycle stealing behavior of the DMC DMA while running Sprite DMAs	blargg	link
tvpassfail	NTSC color and NTSC/PAL pixel aspect ratio test ROM	tepples	link
vbl_nmi_timing	Generally the same as ppu_vbl_nmi (older revision of the tests - ppu_vbl_nmi is most likely better)	blargg

APU Tests

Name	Description	Author	Forum
apu_mixer	Verifies proper operation of the APU's sound channel mixer, including relative volumes of channels and non-linear mixing. recordings when run on NES are available for comparison, though the tests are made so that you don't really need these.	blargg
apu_phase_reset	Tests the correct square channel behavior when writing to $4003/4007 (reset the duty cycle sequencers but not the clock dividers)	Rahsennor	link
apu_reset	Tests initial APU state at power, and the effect of reset.	blargg
apu_test	Tests many aspects of the APU that are visible to the CPU. Really obscure things are not tested here.	blargg
blargg_apu_2005.07.30	Tests APU length counters, frame counter, IRQ, etc.	blargg
dmc_dma_during_read4	Tests register read/write behavior while DMA is running	blargg
dmc_tests	?	?
dpcmletterbox	Tests accuracy of the DMC channel's IRQ	tepples
pal_apu_tests	PAL version of the blargg_apu_2005.07.30 tests	blargg
square_timer_div2	Tests the square timer's period	blargg
test_apu_2 (1-10) (11)	11 tests that verify a number of behaviors with the APU (including the frame counter)	x0000	link
test_apu_env	Tests the APU envelope for correctness.	blargg
test_apu_sweep	Tests the sweep unit's add, subtract, overflow cutoff, and minimum period behaviors.	blargg
test_apu_timers	Tests frequency timer of all 5 channels	blargg
test_tri_lin_ctr	Tests triangle's linear counter and clocking by the frame counter	blargg
volume_tests	Plays tones on all the APU's channels to show their relative volumes at various settings of $4011. Package includes a recording from an NES's audio output for comparison.	tepples

Mapper-specific Tests

Name	Description	Author	Forum
31_test	Tests for mapper 31 (with various NES 2.0 headers for PRG ROM sizes)	rainwarrior	link
BNTest	Tests how many PRG banks are reachable in BxROM and AxROM.	tepples	link
bxrom_512k_test	Similar to the BxROM test in BNTest above.	rainwarrior	link
exram	MMC5 exram test	Quietust
fme7acktest-r1	Checks some IRQ acknowledgment behiaviors of Sunsoft FME-7 that emulators were getting wrong in 2015.	tepples	link
fme7ramtest-r1	Checks how much work ram the Sunsoft FME-7 can access	tepples	link
Holy Diver Batman	Detects over a dozen mappers and verifies that all PRG ROM and CHR ROM banks are reachable, that PRG RAM and CHR RAM can be written and read back without error, and that nametable mirroring, IRQ, and WRAM protection work.	tepples	link
mmc3bigchrram	MMC3 test for large 32kb CHR RAM with NES 2.0 headers	tepples	link
mmc3_test	MMC3 scanline counter and IRQ generation tests.	blargg
serom	Tests the constraints of SEROM / SHROM / SH1ROM variations of the MMC1 boards.	lidnariq	link
Submapper Tests	2_test - Mapper 2, Submappers 0, 1 and 2	rainwarrior	link
	3_test - Mapper 3, Submappers 0, 1 and 2	rainwarrior	link
	7_test - Mapper 7, Submappers 0, 1 and 2	rainwarrior	link
	34_test - Mapper 34, Submappers 1 and 2	rainwarrior	link
test28	Tests for mapper 28	tepples	link
vrc6test	VRC6 mirroring tests	natt	link

Input Tests

Name	Description	Author	Forum
allpads	Multiple controller test supporting NES controller, Super NES controller, Famicom microphone, Four Score, Zapper, NES Arkanoid controller, and Super NES Mouse	tepples	link
dma_sync_test_v2	Tests DMC DMA read corruption	Rahsennor	link
mousetest	Test for a Super Famicom mouse wired in a Famicom expansion port as controller 3
PaddleTest3	Test for the Arkanoid controller	3gengames	link
read_joy3	Various NES controllers tests, including read corruption due to DMC DMA	blargg	link
ruder	Test for the Zapper, including dual wield but not the serial Vs. variant	tepples
spadtest-nes	Super Nintendo controller test (when connected to a NES)	tepples	link
vaus_test	Another test for the Arkanoid controller	tepples	link

Misc Tests

Name	Description	Author	Forum
characterize-vs	VS System tests	lidnariq	link
NEStress	Old test - some of the tests are supposed to fail on real hardware.
oc-r1a	Detects and displays accurate clock rate of the NES	tepples	link