I'm basing my progress on the pass / fail test of many test ROMs below. Yes, I do realize some test must be PASSED IN ORDER and some older test might not pass at all (NESstress), they're here for further updates as test become fixed.
Code: Select all
nestest:
branch test: ok
flag test: ok
immediate test: ok
implied test: ok
stack test: ok
accumulator test: ok
(indirect,X) test: ok
zeropage test: ok
absolute test: ok
(indirect),Y test: ok
absolute,Y test: ok
zeropage,X test: ok
absolute,X test: ok
NOP: ok
LAX: ok
SAX: 89 SAX (indr,x) failure
SBC: ok
DCP: A0 DCP (indr),y failure
ISB: B8 SAX zp,y failure
SLO: ok
RLA: E8 RLA abs,x failure
SRE: FD SRE abs,x failure
RRA: 15 RRA abs,x failure
====================
NEStress (PD) [a1]:
PPU Normal Write/Read OK
PPU Write Read Write OK
PPU First Read Then Write OK
PPU First Read Correct OK
PPU Mixed Address / Data Write Error PPU address isn't changed before both bytes are written to the address register
PPU $3000 Mirroring Ok
PPU $3FFF-$0000 Wrap Around OK
Mix writes to $2005/$2006 OK
Read $2002 to reset latch OK
Use $2002/5 to set address OK
PPU Palette Write / Read Error At least the Dr. PC Jr has this memory before the "pipe"
VBL test, bit 7 of $2002 OK
CPU: 47/48 (CPU RAM Error, Mirror OK though...)
====================
Overflow Test (Alastair Bridgewater, 2001 Oct 19):
ADC 00
SBC 00
* Passes but it's totally white since I've fixed NESStress and blargg's PPU test, before is was shown.
====================
NES Test Cart (Official Nintendo) (U) [!]:
Video RAM (U4): OK
Work RAM (U1): OK
Controller: OK
Obj Test: OK
Pallette: OK (I guess?)
Squares: OK (I guess?)
====================
Port Test Cartridge (U):
"NES Controll Deck Test"
Charactor Error
Video RAM *Doesn't geth this far
Work RAM *Doesn't geth this far
Input Port *Doesn't geth this far
====================
POWERPAD.NES:
Doesn't work, doesn't even display right.
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read2004.nes:
AA AA ...
AA AA 00 00 00 00
====================
Scanline PPU Test by Quietust (PD) [a1]:
Stars for first paragraph
Stars for second prargraph and incomplete paragraph display
No more paragraphs
blargg_apu_2005.07.30:
01.len_ctr $04 Writing $80 to $4017 should clock length immediately
02.len_table $F8 $FF $1E $02 Difference of 7
03.irq_flag $04 Flag should be set in $4017 mode $00
04.clock_jitter $03 Frame irq is set too late
05.len_timing_mode0 $02 First length is clocked too soon
06.len_timing_mode1 $02 First length is clocked too soon
07.irq_flag_timing $03 Flag first set too late
08.irq_timing $04 Never occurred
09.reset_timing $04 Fourth step occurs too late
10.len_halt_timing $03 Length should be clocked when halted at 14915
11.len_reload_timing $02 Reload just before length clock should work normally
blargg_ppu_tests_2005.09.15b:
palette_ram $01 OK
sprite_ram $01 OK
vram_access $01 OK
vbl_clear_time $03 VBL flag cleared too late
power_up_palette $02 Palette differs from table
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http://nesdev.com/bbs/viewtopic.php?t=567
http://www.slack.net/~ant/nes-tests/
Palette at power-up:
0x09,0x01,0x00,0x01,
0x00,0x02,0x02,0x0D,
0x08,0x10,0x08,0x24,
0x00,0x00,0x04,0x2C,
0x09,0x01,0x34,0x03,
0x00,0x04,0x00,0x14,
0x08,0x3A,0x00,0x02,
0x00,0x20,0x2C,0x08
branch_timing_tests:
Branch_Basics: #3 NMI period is too too long
Backward_Branch: xx
Forward_Branch: xx
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http://nesdev.com/bbs/viewtopic.php?t=1843
CLI Latency Test:
cli_latency: #3 APU should generate IRQ when $4017 = $00
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http://nesdev.com/bbs/viewtopic.php?t=2697
NES 6502 Timing Test:
cpu_timing_test: Basic timing wrong
cpu_timing_test4: Basic timing wrong
cpu_timing_test5: Basic timing wrong
cpu_timing_test6: Basic timing wrong
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http://nesdev.com/bbs/viewtopic.php?t=2691
MMC3:
1.Clocking #3* Should decrement when A12 is toggled via $2006
2.Details #2 Counter isn't working when reloaded with 255
3.A12 Clocking #4 Should be clocked when A12 changes to 1 via $2006 write
4.Scanline Timing ** CRASH
5.MMC3 Rev A OK* Pass
6.MMC3 Rev B #2* Should reload and set IRQ every clock when reload is 0
* Crashes or garbage
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http://nesdev.com/bbs/viewtopic.php?t=2895
PPU Sprite 0 Test:
01.basics OK
02.alignment #3 Sprite should miss left side of bg tile
03.corners OK
04.flip OK
05.left_clip Left-edge clipping occurs when $2001 is not $1e
06.right_edge OK
07.screen_bottom Can hit when Y < 239
08.double_height Lower sprite tile should hit bottom of bg tile
09.timing_basics Upper-left corner too late
10.timing_order Upper-left corner too late
11.edge_timing OK
Sprit 0 Hit Timing:
sprite_hit_timing #5 Sprite 0 hit was set too late
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Tests sprite 0 hit timing to within 4 CPU clocks (12 PPU clocks).
Tests time it's cleared each frame, time it's set at upper-left corner, time for each PPU pixel, and time for each PPU scanline.
Depends on proper PPU frame length (less than 29781 CPU clocks).
PPU Sprite Overflow Flag Test:
1.Basics #3 Reading $2002 shouldn't clear flag
2.Details #2 Should be set even when sprites are under left clip (X = 0)
3.Timing #4 Set too early for first scanline
4.Obscure #2 Checks that second byte of sprite #10 is treated as its Y
5.Emulator #3 Disabling rendering didn't recalculate flag time
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http://nesdev.com/bbs/viewtopic.php?t=3307
http://nesdev.com/bbs/viewtopic.php?t=2294
http://nesdevwiki.ath.cx/wiki/index.php/NES_PPU#Sprite_evaluation
VBL/NMI Timing Tests:
1.frame_basics #2 VBL flag isn't being set
2.vbl_timing #2 Flag should read as clear 3 PPU clocks before VBL
3.even_odd_frames #2 Pattern ----- should not skip any clocks
4.vbl_clear_timing #3 Cleared 2 PPU clocks too early
5.nmi_suppression #2 Reading flag 3 PPU clocks before set shouldn't suppress NMI
6.nmi_disable #3 NMI should occur when disabled 3 PPU clocks after VBL
7.nmi_timing #2 NMI occurred 3 or more PPU clocks too early
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http://nesdev.com/bbs/viewtopic.php?t=2616
