GTE Input Timing and I/O Load Pairs
Measures when each GTE command reads each input, and the cost of paired loads, stores after loads and uncached loads.
| Machine | SCPH-5501 |
|---|---|
| Program | cpu_next4 |
This is an old revision of this page, as edited by RemmyLee at 05:26, 23 October 2026. Edit this revision | Latest revision
Overview
The program follows on from CPU Load Pairs and GTE Input Timing. Its timing rows are root counter 2 counts in system clock cycles for 100 turns of a loop body.1
The GTE groups sweep each input of each GTE command. In the "before" rows the input changes from its old value 00010002h to its new value 00030004h up to two NOPs before the command. In the "after" rows the command is issued with the old value in place and the new value is written zero to twelve NOPs after it. Every input is set again before each pass, and each row runs cold from RAM and then cached.1
Results
GTE Inputs
The table gives, for each input whose old and new values lead to different results, how many NOPs must come between a write and the command for the command to use it. It also gives the latest write after the command that still reached it. A dagger (†) marks a row in which the cold and the cached runs differed, and the figure is then the latest gap at which either run took the write.1 The "after" rows step in 1 to 8 NOPs, a different step for each input, so a figure is the last step tested that reached the command. For NCDT and NCCT the step after 0 was 8 NOPs, and for NCT it was 4. GTE Lighting Input Latency steps NCT, NCCT and NCDT one NOP at a time, and there a write to VXY2 three NOPs after any of the three commands no longer reached it.1
| Command | Input | NOPs needed before | Latest write after that reaches it |
|---|---|---|---|
| RTPS | VXY0, VZ0 | 0 | none |
| RTPT | VZ0 | 0 | none |
| RTPT | VZ1 | 0 | at once |
| RTPT | VXY2, VZ2 | 0 | 4 NOPs after † |
| NCLIP | SXY0 | 2 | |
| NCLIP | SXY2 | 0 | at once |
| OP | IR2 | 1 | |
| OP | IR3 | 0 | none |
| DPCS | RGBC | 1 | none |
| DCPL | RGBC | 1 | none |
| DCPL | IR1 | 1 | |
| INTPL | IR1 | 1 | none |
| MVMVA | VXY0 | 2 | |
| MVMVA | VZ0 | 0 | 1 NOP after † |
| MVMVA, IR vector | IR1 | 2 | |
| NCS | VXY0 | 2 | none |
| NCS | VZ0 | 0 | at once † |
| NCDS, NCCS | VXY0 | 2 | none |
| NCDS, NCCS | RGBC | 0 | 8 NOPs after † |
| NCT | VXY2 | 0 | 4 NOPs after † |
| NCDT, NCCT | VXY2 | 0 | at once (next step 8 NOPs) |
| CC | RGBC | 0 | 2 NOPs after † |
| CC | IR1 | 2 † | |
| CDP | RGBC | 0 | at once |
| CDP | IR1 | 2 | |
| SQR | IR1 | 2 | |
| SQR | IR2 | 1 | |
| SQR | IR3 | 0 | none |
| AVSZ3 | SZ1 | 2 | |
| AVSZ3 | SZ2 | 1 | |
| AVSZ3 | SZ3 | 0 | none |
| GPF | IR0, IR1 | 2 | none for IR0 |
| GPF | IR2 | 1 | |
| GPL | IR0, MAC1 | 2 |
A blank cell means the program did not test that case. Inputs that a command reads early need the write to settle first, and inputs it reads late can still be changed after the command has started. RTPT, for example, reads the first vector at the start and the third vector several cycles later.1
I/O Loads in Pairs
The second of two loads from the same device waits for the first to finish:1
| Load | Load, nop | Load, load, nop | Load, 4 nops, load, nop |
|---|---|---|---|
| I_STAT lw | 750 | 1148 | 1449 |
| GPUSTAT lw | 745 | 1138 | 1449 |
| DPCR lw | 745 | 1138 | 1449 |
| Timer 1 lhu | 750 | 1152 | 1448 |
| SPUSTAT lhu | 2246 | 4252 | 4241 |
| SPU voice 0 lhu | 2246 | 4247 | 4241 |
| CD-ROM status lbu | 1242 | 2041 | 2250 |
| EXP1 lbu | 1130 | 1825 | 2018 |
| BIOS lbu | 1130 | 1825 | 2024 |
| RAM lbu | 944 | 1446 | 1642 |
On the SPU, four NOPs between the two loads save nothing: the second load still takes as long as if it came at once.1
A Store after a Load
A RAM store right after a RAM load added about 3 cycles a turn (1265 against 958). A store to the GPU's GP0 port or to the scratchpad after a RAM load added about 1 (1044). A RAM store after an I_STAT load added about 1 (863 against 750).1
Branches between Loads
A taken backward branch between two RAM loads added about 1 cycle a turn: the loop took 1771 cycles against 1678 with four NOPs in its place. A forward branch cost nothing (1677). A BNE on a register written just before it cost nothing as well (1675).1
Loads in Uncached Code
When the code runs from KSEG1, a load does not overlap with the next instruction fetch. A RAM load adds about 4 cycles a turn to the uncached loop and a BIOS ROM load about 22. The number of NOPs after the load does not change these figures. An I_STAT load adds nothing beyond its own fetch. I_STAT lw with two NOPs took 3715 cycles against 3103 for two NOPs alone, which is the cost of one more uncached instruction.1
Instruction Cache Fills by Line
A call of 1 to 16 cache lines of NOPs was timed three times. The first call followed FlushCache, the second came from the cache and the third followed a second FlushCache.1
| Lines | Cold | Cached | Cold again |
|---|---|---|---|
| 1 | 33 | 28 | 33 |
| 2 | 42 | 37 | 42 |
| 3 | 51 | 28 | 51 |
| 4 | 60 | 26 | 60 |
| 6 | 82 | 29 | 78 |
| 8 | 101 | 37 | 96 |
| 16 | 168 | 69 | 173 |
Each further line costs about 9 counts when the cache is cold.1
Runs
26 September 2026 (card-cpu4)
===== 00 RUN | BIOS 19951204 System ROM Version 3.0 11/18/96 A
12 tests
COP0 at start: BPC 00000000 BDA 00000000 TAR BFC02B68 DCIC 00000000 BadVaddr 00000480 BDAM 00000000
BPCM 00000000 SR 00000000 Cause C0000024 EPC BFC02B78 PRId 00000002
===== 01 IOP IO LOAD PAIRS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
loads in pairs by device:
I_STAT lw load, nop: 746
I_STAT lw load, load, nop: 1155
I_STAT lw load, 4 nops, load, nop: 1455
GPUSTAT lw load, nop: 750
GPUSTAT lw load, load, nop: 1137
GPUSTAT lw load, 4 nops, load, nop: 1450
DPCR lw load, nop: 751
DPCR lw load, load, nop: 1136
DPCR lw load, 4 nops, load, nop: 1449
timer 1 lhu load, nop: 756
timer 1 lhu load, load, nop: 1147
timer 1 lhu load, 4 nops, load, nop: 1449
SPUSTAT lhu load, nop: 2237
SPUSTAT lhu load, load, nop: 4228
SPUSTAT lhu load, 4 nops, load, nop: 4225
SPU voice 0 lhu load, nop: 2243
SPU voice 0 lhu load, load, nop: 4225
SPU voice 0 lhu load, 4 nops, load, nop: 4225
CDROM status lbu load, nop: 1243
CDROM status lbu load, load, nop: 2052
CDROM status lbu load, 4 nops, load, nop: 2251
EXP1 lbu load, nop: 1136
EXP1 lbu load, load, nop: 1825
EXP1 lbu load, 4 nops, load, nop: 2025
BIOS lbu load, nop: 1124
BIOS lbu load, load, nop: 1825
BIOS lbu load, 4 nops, load, nop: 2025
RAM lbu load, nop: 941
RAM lbu load, load, nop: 1446
RAM lbu load, 4 nops, load, nop: 1650
I_STAT lw, lw: 1055
I_STAT lw, 1 nop, lw, nop: 1349
RAM lw, 9 nops, lw, nop: 2075
RAM lw, 10 nops, lw, nop: 2186
RAM lw, 12 nops, lw, nop: 2382
Done.
===== 02 SAL STORE AFTER LOAD | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
a store after a load:
RAM lw, nop: 956
RAM sw, nop (no load): 559
RAM lw, RAM sw: 1261
RAM lw, 1 nop, RAM sw: 1477
RAM lw, 2 nops, RAM sw: 1486
RAM lw, 3 nops, RAM sw: 1483
RAM lw, 5 nops, RAM sw: 1493
RAM lw, GP0 sw: 1047
RAM lw, 1 nop, GP0 sw: 1238
RAM lw, 3 nops, GP0 sw: 1267
RAM lw, scratchpad sw: 1047
RAM lw, 1 nop, scratchpad sw: 1247
RAM lw, 3 nops, scratchpad sw: 1271
I_STAT lw, RAM sw: 863
I_STAT lw, 1 nop, RAM sw: 1079
BIOS lw, 1 nop, RAM sw: 3233
BIOS lw, 3 nops, RAM sw: 3252
Done.
===== 03 BRK BRANCH KINDS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
the branch between two loads (4 instructions between each time):
RAM lw, 4 nops, lw, nop: 1685
RAM lw, backward beq path, lw: 1783
RAM lw, forward beq, 3 nops, lw, nop: 1687
RAM lw, addiu, bne on it (taken), nop, lw, nop: 1684
RAM lw, addiu, beq $0 (taken), nop, lw, nop: 1693
BIOS lw, 4 nops, lw, nop: 5625
BIOS lw, backward beq path, lw: 5671
BIOS lw, addiu, bne on it (taken), nop, lw, nop: 5661
Done.
===== 04 UNL UNCACHED LOADS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
code from KSEG1, a load then n nops:
1 nop: 2503
2 nops: 3111
4 nops: 4331
6 nops: 5551
RAM lw: 2912
RAM lw, 1 nop: 3526
RAM lw, 2 nops: 4133
RAM lw, 4 nops: 5362
RAM lw, 6 nops: 6604
BIOS lw: 4714
BIOS lw, 2 nops: 5927
BIOS lw, 6 nops: 8369
I_STAT lw, 2 nops: 3722
Done.
===== 05 FLN FILL LINES | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
i-cache fills, one call (timer overhead included):
1 line: cold 34, cached 16, cold again 40
2 lines: cold 43, cached 20, cold again 43
3 lines: cold 52, cached 24, cold again 52
4 lines: cold 61, cached 28, cold again 61
6 lines: cold 79, cached 50, cold again 84
8 lines: cold 101, cached 44, cold again 97
16 lines: cold 169, cached 81, cold again 169
Done.
===== 06 GB1 GTE BEFORE 1 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
GTE: an input written n nops before the command (old 00010002, new 00030004; cold, cached):
RTPS, VXY0 0 before: 00000004 00000004
RTPS, VXY0 1 before: 00000004 00000004
RTPS, VXY0 2 before: 00000004 00000004
RTPS, VZ0 0 before: 00000004 00000004
RTPS, VZ0 1 before: 00000004 00000004
RTPS, VZ0 2 before: 00000004 00000004
RTPT, VZ0 0 before: 00000004 00000004
RTPT, VZ0 1 before: 00000004 00000004
RTPT, VZ0 2 before: 00000004 00000004
RTPT, VZ1 0 before: 00000004 00000004
RTPT, VZ1 1 before: 00000004 00000004
RTPT, VZ1 2 before: 00000004 00000004
RTPT, VXY2 0 before: 00000004 00000004
RTPT, VXY2 1 before: 00000004 00000004
RTPT, VXY2 2 before: 00000004 00000004
RTPT, VZ2 0 before: 00000004 00000004
RTPT, VZ2 1 before: 00000004 00000004
RTPT, VZ2 2 before: 00000004 00000004
NCLIP, SXY0 0 before: FFFFFF30 FFFFFF30
NCLIP, SXY0 1 before: FFFFFF50 FFFFFF50
NCLIP, SXY0 2 before: FFFFFF70 FFFFFF70
NCLIP, SXY1 0 before: FFFFFFD0 FFFFFFD0
NCLIP, SXY1 1 before: FFFFFFD0 FFFFFFD0
NCLIP, SXY1 2 before: FFFFFFD0 FFFFFFD0
NCLIP, SXY2 0 before: FFFFFFC0 FFFFFFC0
NCLIP, SXY2 1 before: FFFFFFC0 FFFFFFC0
NCLIP, SXY2 2 before: FFFFFFC0 FFFFFFC0
OP, IR1 0 before: FFFFF004 FFFFF004
OP, IR1 1 before: FFFFF004 FFFFF004
OP, IR1 2 before: FFFFF004 FFFFF004
OP, IR2 0 before: 00000FFE 00000FFE
OP, IR2 1 before: 00000FFC 00000FFC
OP, IR2 2 before: 00000FFC 00000FFC
OP, IR3 0 before: 00000FFC 00000FFC
OP, IR3 1 before: 00000FFC 00000FFC
OP, IR3 2 before: 00000FFC 00000FFC
DPCS, RGBC 0 before: 00000020 00000020
DPCS, RGBC 1 before: 00000040 00000040
DPCS, RGBC 2 before: 00000040 00000040
INTPL, IR0 0 before: 00000FFC 00000FFC
INTPL, IR0 1 before: 00000FFC 00000FFC
INTPL, IR0 2 before: 00000FFC 00000FFC
INTPL, IR1 0 before: 00000002 00000002
INTPL, IR1 1 before: 00000004 00000004
INTPL, IR1 2 before: 00000004 00000004
MVMVA, VXY0 0 before: 00000002 00000002
MVMVA, VXY0 1 before: 00000004 00000002
Done.
===== 07 GB2 GTE BEFORE 2 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
GTE: an input written n nops before the command (old 00010002, new 00030004; cold, cached):
MVMVA, VXY0 2 before: 00000004 00000004
MVMVA, VZ0 0 before: 00000004 00000004
MVMVA, VZ0 1 before: 00000004 00000004
MVMVA, VZ0 2 before: 00000004 00000004
MVMVA IR, IR1 0 before: 00000002 00000002
MVMVA IR, IR1 1 before: 00000004 00000002
MVMVA IR, IR1 2 before: 00000004 00000004
MVMVA IR, IR3 0 before: 00000004 00000004
MVMVA IR, IR3 1 before: 00000004 00000004
MVMVA IR, IR3 2 before: 00000004 00000004
NCDS, VXY0 0 before: 00000400 00000400
NCDS, VXY0 1 before: 00000400 00000400
NCDS, VXY0 2 before: 00000401 00000401
NCDS, RGBC 0 before: 00000040 00000040
NCDS, RGBC 1 before: 00000040 00000040
NCDS, RGBC 2 before: 00000040 00000040
NCS, VXY0 0 before: 00001002 00001002
NCS, VXY0 1 before: 00001004 00001002
NCS, VXY0 2 before: 00001004 00001004
NCS, VZ0 0 before: 00000004 00000004
NCS, VZ0 1 before: 00000004 00000004
NCS, VZ0 2 before: 00000004 00000004
NCCS, VXY0 0 before: 00000400 00000400
NCCS, VXY0 1 before: 00000400 00000400
NCCS, VXY0 2 before: 00000401 00000401
NCCS, RGBC 0 before: 00000040 00000040
NCCS, RGBC 1 before: 00000040 00000040
NCCS, RGBC 2 before: 00000040 00000040
CC, RGBC 0 before: 00000080 00000080
CC, RGBC 1 before: 00000080 00000080
CC, RGBC 2 before: 00000080 00000080
CC, IR1 0 before: 00000400 00000400
CC, IR1 1 before: 00000400 00000400
CC, IR1 2 before: 00000401 00000401
CDP, RGBC 0 before: 00000080 00000080
CDP, RGBC 1 before: 00000080 00000080
CDP, RGBC 2 before: 00000080 00000080
CDP, IR1 0 before: 00000400 00000400
CDP, IR1 1 before: 00000400 00000400
CDP, IR1 2 before: 00000401 00000401
SQR, IR1 0 before: 00000004 00000004
SQR, IR1 1 before: 00000010 00000004
SQR, IR1 2 before: 00000010 00000010
SQR, IR2 0 before: 00000004 00000004
SQR, IR2 1 before: 00000010 00000010
SQR, IR2 2 before: 00000010 00000010
SQR, IR3 0 before: 00000010 00000010
Done.
===== 08 GB3 GTE BEFORE 3 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
GTE: an input written n nops before the command (old 00010002, new 00030004; cold, cached):
SQR, IR3 1 before: 00000010 00000010
SQR, IR3 2 before: 00000010 00000010
DCPL, RGBC 0 before: 00000020 00000020
DCPL, RGBC 1 before: 00000040 00000040
DCPL, RGBC 2 before: 00000040 00000040
DCPL, IR1 0 before: 00000000 00000000
DCPL, IR1 1 before: 00000001 00000001
DCPL, IR1 2 before: 00000001 00000001
AVSZ3, SZ1 0 before: 00000202 00000202
AVSZ3, SZ1 1 before: 00000202 00000202
AVSZ3, SZ1 2 before: 00000204 00000204
AVSZ3, SZ2 0 before: 00000202 00000202
AVSZ3, SZ2 1 before: 00000204 00000204
AVSZ3, SZ2 2 before: 00000204 00000204
AVSZ3, SZ3 0 before: 00000204 00000204
AVSZ3, SZ3 1 before: 00000204 00000204
AVSZ3, SZ3 2 before: 00000204 00000204
AVSZ4, SZ0 0 before: 00000304 00000304
AVSZ4, SZ0 1 before: 00000304 00000304
AVSZ4, SZ0 2 before: 00000304 00000304
GPF, IR0 0 before: 00000002 00000002
GPF, IR0 1 before: 00000002 00000002
GPF, IR0 2 before: 00000004 00000004
GPF, IR1 0 before: 00000002 00000002
GPF, IR1 1 before: 00000004 00000002
GPF, IR1 2 before: 00000004 00000004
GPF, IR2 0 before: 00000002 00000002
GPF, IR2 1 before: 00000004 00000004
GPF, IR2 2 before: 00000004 00000004
GPF, IR3 0 before: 00000004 00000004
GPF, IR3 1 before: 00000004 00000004
GPF, IR3 2 before: 00000004 00000004
GPL, IR0 0 before: 00000002 00000002
GPL, IR0 1 before: 00000002 00000002
GPL, IR0 2 before: 00000004 00000004
GPL, MAC1 0 before: 00010002 00010002
GPL, MAC1 1 before: 00030004 00010002
GPL, MAC1 2 before: 00030004 00030004
NCT, VXY2 0 before: 00001004 00001004
NCT, VXY2 1 before: 00001004 00001004
NCT, VXY2 2 before: 00001004 00001004
NCDT, VXY2 0 before: 00000401 00000401
NCDT, VXY2 1 before: 00000401 00000401
NCDT, VXY2 2 before: 00000401 00000401
NCCT, VXY2 0 before: 00000401 00000401
NCCT, VXY2 1 before: 00000401 00000401
NCCT, VXY2 2 before: 00000401 00000401
Done.
===== 09 GA1 GTE AFTER 1 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
GTE: an input written n nops after the command (old 00010002, new 00030004; cold, cached):
RTPS, VXY0 0 after: 00000002 00000002
RTPS, VXY0 1 after: 00000002 00000002
RTPS, VXY0 2 after: 00000002 00000002
RTPS, VXY0 4 after: 00000002 00000002
RTPS, VXY0 6 after: 00000002 00000002
RTPS, VXY0 8 after: 00000002 00000002
RTPS, VXY0 12 after: 00000002 00000002
RTPS, VZ0 0 after: 00000002 00000002
RTPS, VZ0 1 after: 00000002 00000002
RTPS, VZ0 2 after: 00000002 00000002
RTPS, VZ0 4 after: 00000002 00000002
RTPS, VZ0 6 after: 00000002 00000002
RTPS, VZ0 8 after: 00000002 00000002
RTPS, VZ0 12 after: 00000002 00000002
RTPT, VZ0 0 after: 00000002 00000002
RTPT, VZ0 1 after: 00000002 00000002
RTPT, VZ0 2 after: 00000002 00000002
RTPT, VZ0 4 after: 00000002 00000002
RTPT, VZ0 6 after: 00000002 00000002
RTPT, VZ1 0 after: 00000004 00000004
RTPT, VZ1 2 after: 00000002 00000002
RTPT, VZ1 4 after: 00000002 00000002
RTPT, VZ1 6 after: 00000002 00000002
RTPT, VZ1 8 after: 00000002 00000002
RTPT, VZ1 10 after: 00000002 00000002
RTPT, VZ1 12 after: 00000002 00000002
RTPT, VXY2 0 after: 00000004 00000004
RTPT, VXY2 2 after: 00000002 00000004
RTPT, VXY2 4 after: 00000002 00000004
RTPT, VXY2 6 after: 00000002 00000002
RTPT, VXY2 8 after: 00000002 00000002
RTPT, VXY2 10 after: 00000002 00000002
RTPT, VXY2 12 after: 00000002 00000002
RTPT, VXY2 14 after: 00000002 00000002
RTPT, VXY2 16 after: 00000002 00000002
RTPT, VXY2 20 after: 00000002 00000002
RTPT, VZ2 0 after: 00000002 00000004
RTPT, VZ2 2 after: 00000002 00000004
RTPT, VZ2 4 after: 00000002 00000004
RTPT, VZ2 6 after: 00000002 00000002
RTPT, VZ2 8 after: 00000002 00000002
Done.
===== 10 GA2 GTE AFTER 2 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
GTE: an input written n nops after the command (old 00010002, new 00030004; cold, cached):
RTPT, VZ2 10 after: 00000002 00000002
RTPT, VZ2 12 after: 00000002 00000002
RTPT, VZ2 14 after: 00000002 00000002
RTPT, VZ2 16 after: 00000002 00000002
RTPT, VZ2 20 after: 00000002 00000002
NCLIP, SXY2 0 after: FFFFFFC0 FFFFFFC0
NCLIP, SXY2 1 after: FFFFFFE0 FFFFFFC0
NCLIP, SXY2 2 after: FFFFFFE0 FFFFFFE0
NCLIP, SXY2 4 after: FFFFFFE0 FFFFFFE0
NCLIP, SXY2 6 after: FFFFFFE0 FFFFFFE0
OP, IR3 0 after: 00000FFE 00000FFE
OP, IR3 1 after: 00000FFE 00000FFE
OP, IR3 2 after: 00000FFE 00000FFE
OP, IR3 4 after: 00000FFE 00000FFE
DPCS, RGBC 0 after: 00000020 00000020
DPCS, RGBC 1 after: 00000020 00000020
DPCS, RGBC 2 after: 00000020 00000020
DPCS, RGBC 4 after: 00000020 00000020
DPCS, RGBC 6 after: 00000020 00000020
INTPL, IR1 0 after: 00000002 00000002
INTPL, IR1 1 after: 00000002 00000002
INTPL, IR1 2 after: 00000002 00000002
INTPL, IR1 4 after: 00000002 00000002
INTPL, IR1 6 after: 00000002 00000002
MVMVA, VZ0 0 after: 00000002 00000004
MVMVA, VZ0 1 after: 00000002 00000004
MVMVA, VZ0 2 after: 00000002 00000002
MVMVA, VZ0 4 after: 00000002 00000002
MVMVA, VZ0 6 after: 00000002 00000002
SQR, IR3 0 after: 00000004 00000004
SQR, IR3 1 after: 00000004 00000004
SQR, IR3 2 after: 00000004 00000004
SQR, IR3 4 after: 00000004 00000004
NCDS, VXY0 0 after: 00000400 00000400
NCDS, VXY0 2 after: 00000400 00000400
NCDS, VXY0 4 after: 00000400 00000400
NCDS, VXY0 6 after: 00000400 00000400
NCDS, VXY0 8 after: 00000400 00000400
NCDS, VXY0 12 after: 00000400 00000400
NCDS, VXY0 16 after: 00000400 00000400
NCDS, RGBC 0 after: 00000040 00000040
Done.
===== 11 GA3 GTE AFTER 3 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
GTE: an input written n nops after the command (old 00010002, new 00030004; cold, cached):
NCDS, RGBC 2 after: 00000040 00000040
NCDS, RGBC 4 after: 00000020 00000040
NCDS, RGBC 8 after: 00000020 00000040
NCDS, RGBC 12 after: 00000020 00000020
NCDS, RGBC 16 after: 00000020 00000020
NCS, VXY0 0 after: 00001002 00001002
NCS, VXY0 2 after: 00001002 00001002
NCS, VXY0 4 after: 00001002 00001002
NCS, VXY0 6 after: 00001002 00001002
NCS, VXY0 8 after: 00001002 00001002
NCS, VXY0 12 after: 00001002 00001002
NCS, VZ0 0 after: 00000002 00000004
NCS, VZ0 2 after: 00000002 00000002
NCS, VZ0 4 after: 00000002 00000002
NCS, VZ0 6 after: 00000002 00000002
NCS, VZ0 8 after: 00000002 00000002
NCS, VZ0 12 after: 00000002 00000002
NCCS, VXY0 0 after: 00000400 00000400
NCCS, VXY0 2 after: 00000400 00000400
NCCS, VXY0 4 after: 00000400 00000400
NCCS, VXY0 6 after: 00000400 00000400
NCCS, VXY0 8 after: 00000400 00000400
NCCS, VXY0 12 after: 00000400 00000400
NCCS, VXY0 16 after: 00000400 00000400
NCCS, RGBC 0 after: 00000040 00000040
NCCS, RGBC 2 after: 00000040 00000040
NCCS, RGBC 4 after: 00000020 00000040
NCCS, RGBC 6 after: 00000020 00000040
NCCS, RGBC 8 after: 00000020 00000040
NCCS, RGBC 10 after: 00000020 00000020
NCCS, RGBC 12 after: 00000020 00000020
NCCS, RGBC 14 after: 00000020 00000020
NCCS, RGBC 16 after: 00000020 00000020
CC, RGBC 0 after: 00000040 00000080
CC, RGBC 2 after: 00000040 00000080
CC, RGBC 4 after: 00000040 00000040
CC, RGBC 6 after: 00000040 00000040
CC, RGBC 8 after: 00000040 00000040
CC, RGBC 10 after: 00000040 00000040
CDP, RGBC 0 after: 00000080 00000080
CDP, RGBC 2 after: 00000040 00000040
Done.
===== 12 GA4 GTE AFTER 4 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
GTE: an input written n nops after the command (old 00010002, new 00030004; cold, cached):
CDP, RGBC 4 after: 00000040 00000040
CDP, RGBC 6 after: 00000040 00000040
CDP, RGBC 8 after: 00000040 00000040
CDP, RGBC 12 after: 00000040 00000040
DCPL, RGBC 0 after: 00000020 00000020
DCPL, RGBC 1 after: 00000020 00000020
DCPL, RGBC 2 after: 00000020 00000020
DCPL, RGBC 4 after: 00000020 00000020
DCPL, RGBC 6 after: 00000020 00000020
AVSZ3, SZ3 0 after: 00000202 00000202
AVSZ3, SZ3 1 after: 00000202 00000202
AVSZ3, SZ3 2 after: 00000202 00000202
AVSZ3, SZ3 4 after: 00000202 00000202
GPF, IR0 0 after: 00000002 00000002
GPF, IR0 1 after: 00000002 00000002
GPF, IR0 2 after: 00000002 00000002
GPF, IR0 4 after: 00000002 00000002
NCT, VXY2 0 after: 00001004 00001004
NCT, VXY2 4 after: 00001002 00001004
NCT, VXY2 8 after: 00001002 00001002
NCT, VXY2 12 after: 00001002 00001002
NCT, VXY2 16 after: 00001002 00001002
NCT, VXY2 20 after: 00001002 00001002
NCT, VXY2 24 after: 00001002 00001002
NCT, VXY2 28 after: 00001002 00001002
NCDT, VXY2 0 after: 00000401 00000401
NCDT, VXY2 8 after: 00000400 00000400
NCDT, VXY2 16 after: 00000400 00000400
NCDT, VXY2 24 after: 00000400 00000400
NCDT, VXY2 28 after: 00000400 00000400
NCDT, VXY2 32 after: 00000400 00000400
NCDT, VXY2 36 after: 00000400 00000400
NCDT, VXY2 40 after: 00000400 00000400
NCCT, VXY2 0 after: 00000401 00000401
NCCT, VXY2 8 after: 00000400 00000400
NCCT, VXY2 16 after: 00000400 00000400
NCCT, VXY2 24 after: 00000400 00000400
NCCT, VXY2 28 after: 00000400 00000400
NCCT, VXY2 32 after: 00000400 00000400
NCCT, VXY2 36 after: 00000400 00000400
Done.
27 September 2026 (card-1)
===== 00 RUN | BIOS 19951204 System ROM Version 3.0 11/18/96 A
12 tests
A chain program, linked at 80100000
Saved on the card in slot 2, from image 1
COP0 at start: BPC 00000000 BDA 00000000 TAR 8001F3F8 DCIC 00000000 BadVaddr 00000400 BDAM 00000000
BPCM 00000000 SR 40000000 Cause 00000020 EPC 8001FF64 PRId 00000002
===== 01 IOP IO LOAD PAIRS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
loads in pairs by device:
I_STAT lw load, nop: 750
I_STAT lw load, load, nop: 1142
I_STAT lw load, 4 nops, load, nop: 1448
GPUSTAT lw load, nop: 738
GPUSTAT lw load, load, nop: 1139
GPUSTAT lw load, 4 nops, load, nop: 1448
DPCR lw load, nop: 738
DPCR lw load, load, nop: 1144
DPCR lw load, 4 nops, load, nop: 1448
timer 1 lhu load, nop: 753
timer 1 lhu load, load, nop: 1147
timer 1 lhu load, 4 nops, load, nop: 1448
SPUSTAT lhu load, nop: 2246
SPUSTAT lhu load, load, nop: 4247
SPUSTAT lhu load, 4 nops, load, nop: 4248
SPU voice 0 lhu load, nop: 2246
SPU voice 0 lhu load, load, nop: 4247
SPU voice 0 lhu load, 4 nops, load, nop: 4248
CDROM status lbu load, nop: 1242
CDROM status lbu load, load, nop: 2038
CDROM status lbu load, 4 nops, load, nop: 2250
EXP1 lbu load, nop: 1130
EXP1 lbu load, load, nop: 1825
EXP1 lbu load, 4 nops, load, nop: 2018
BIOS lbu load, nop: 1130
BIOS lbu load, load, nop: 1825
BIOS lbu load, 4 nops, load, nop: 2018
RAM lbu load, nop: 943
RAM lbu load, load, nop: 1446
RAM lbu load, 4 nops, load, nop: 1645
I_STAT lw, lw: 1040
I_STAT lw, 1 nop, lw, nop: 1340
RAM lw, 9 nops, lw, nop: 2078
RAM lw, 10 nops, lw, nop: 2180
RAM lw, 12 nops, lw, nop: 2381
Done.
===== 02 SAL STORE AFTER LOAD | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
a store after a load:
RAM lw, nop: 960
RAM sw, nop (no load): 552
RAM lw, RAM sw: 1263
RAM lw, 1 nop, RAM sw: 1460
RAM lw, 2 nops, RAM sw: 1467
RAM lw, 3 nops, RAM sw: 1480
RAM lw, 5 nops, RAM sw: 1481
RAM lw, GP0 sw: 1040
RAM lw, 1 nop, GP0 sw: 1232
RAM lw, 3 nops, GP0 sw: 1254
RAM lw, scratchpad sw: 1040
RAM lw, 1 nop, scratchpad sw: 1239
RAM lw, 3 nops, scratchpad sw: 1267
I_STAT lw, RAM sw: 857
I_STAT lw, 1 nop, RAM sw: 1069
BIOS lw, 1 nop, RAM sw: 3220
BIOS lw, 3 nops, RAM sw: 3233
Done.
===== 03 BRK BRANCH KINDS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
the branch between two loads (4 instructions between each time):
RAM lw, 4 nops, lw, nop: 1687
RAM lw, backward beq path, lw: 1770
RAM lw, forward beq, 3 nops, lw, nop: 1679
RAM lw, addiu, bne on it (taken), nop, lw, nop: 1676
RAM lw, addiu, beq $0 (taken), nop, lw, nop: 1675
BIOS lw, 4 nops, lw, nop: 5618
BIOS lw, backward beq path, lw: 5618
BIOS lw, addiu, bne on it (taken), nop, lw, nop: 5645
Done.
===== 04 UNL UNCACHED LOADS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
code from KSEG1, a load then n nops:
1 nop: 2498
2 nops: 3104
4 nops: 4323
6 nops: 5544
RAM lw: 2906
RAM lw, 1 nop: 3516
RAM lw, 2 nops: 4128
RAM lw, 4 nops: 5354
RAM lw, 6 nops: 6596
BIOS lw: 4709
BIOS lw, 2 nops: 5924
BIOS lw, 6 nops: 8357
I_STAT lw, 2 nops: 3712
Done.
===== 05 FLN FILL LINES | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
i-cache fills, one call (timer overhead included):
1 line: cold 33, cached 28, cold again 33
2 lines: cold 42, cached 37, cold again 42
3 lines: cold 51, cached 38, cold again 51
4 lines: cold 60, cached 21, cold again 64
6 lines: cold 82, cached 34, cold again 78
8 lines: cold 96, cached 37, cold again 96
16 lines: cold 172, cached 69, cold again 168
Done.
===== 06 GB1 GTE BEFORE 1 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
GTE: an input written n nops before the command (old 00010002, new 00030004; cold, cached):
RTPS, VXY0 0 before: 00000004 00000004
RTPS, VXY0 1 before: 00000004 00000004
RTPS, VXY0 2 before: 00000004 00000004
RTPS, VZ0 0 before: 00000004 00000004
RTPS, VZ0 1 before: 00000004 00000004
RTPS, VZ0 2 before: 00000004 00000004
RTPT, VZ0 0 before: 00000004 00000004
RTPT, VZ0 1 before: 00000004 00000004
RTPT, VZ0 2 before: 00000004 00000004
RTPT, VZ1 0 before: 00000004 00000004
RTPT, VZ1 1 before: 00000004 00000004
RTPT, VZ1 2 before: 00000004 00000004
RTPT, VXY2 0 before: 00000004 00000004
RTPT, VXY2 1 before: 00000004 00000004
RTPT, VXY2 2 before: 00000004 00000004
RTPT, VZ2 0 before: 00000004 00000004
RTPT, VZ2 1 before: 00000004 00000004
RTPT, VZ2 2 before: 00000004 00000004
NCLIP, SXY0 0 before: FFFFFF50 FFFFFF50
NCLIP, SXY0 1 before: FFFFFF50 FFFFFF50
NCLIP, SXY0 2 before: FFFFFF70 FFFFFF70
NCLIP, SXY1 0 before: FFFFFFD0 FFFFFFD0
NCLIP, SXY1 1 before: FFFFFFD0 FFFFFFD0
NCLIP, SXY1 2 before: FFFFFFD0 FFFFFFD0
NCLIP, SXY2 0 before: FFFFFFC0 FFFFFFC0
NCLIP, SXY2 1 before: FFFFFFC0 FFFFFFC0
NCLIP, SXY2 2 before: FFFFFFC0 FFFFFFC0
OP, IR1 0 before: FFFFF004 FFFFF004
OP, IR1 1 before: FFFFF004 FFFFF004
OP, IR1 2 before: FFFFF004 FFFFF004
OP, IR2 0 before: 00000FFE 00000FFE
OP, IR2 1 before: 00000FFC 00000FFC
OP, IR2 2 before: 00000FFC 00000FFC
OP, IR3 0 before: 00000FFC 00000FFC
OP, IR3 1 before: 00000FFC 00000FFC
OP, IR3 2 before: 00000FFC 00000FFC
DPCS, RGBC 0 before: 00000020 00000020
DPCS, RGBC 1 before: 00000040 00000040
DPCS, RGBC 2 before: 00000040 00000040
INTPL, IR0 0 before: 00000FFC 00000FFC
INTPL, IR0 1 before: 00000FFC 00000FFC
INTPL, IR0 2 before: 00000FFC 00000FFC
INTPL, IR1 0 before: 00000002 00000002
INTPL, IR1 1 before: 00000004 00000004
INTPL, IR1 2 before: 00000004 00000004
MVMVA, VXY0 0 before: 00000002 00000002
MVMVA, VXY0 1 before: 00000002 00000002
Done.
===== 07 GB2 GTE BEFORE 2 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
GTE: an input written n nops before the command (old 00010002, new 00030004; cold, cached):
MVMVA, VXY0 2 before: 00000004 00000004
MVMVA, VZ0 0 before: 00000004 00000004
MVMVA, VZ0 1 before: 00000004 00000004
MVMVA, VZ0 2 before: 00000004 00000004
MVMVA IR, IR1 0 before: 00000002 00000002
MVMVA IR, IR1 1 before: 00000002 00000002
MVMVA IR, IR1 2 before: 00000004 00000004
MVMVA IR, IR3 0 before: 00000004 00000004
MVMVA IR, IR3 1 before: 00000004 00000004
MVMVA IR, IR3 2 before: 00000004 00000004
NCDS, VXY0 0 before: 00000400 00000400
NCDS, VXY0 1 before: 00000400 00000400
NCDS, VXY0 2 before: 00000401 00000401
NCDS, RGBC 0 before: 00000040 00000040
NCDS, RGBC 1 before: 00000040 00000040
NCDS, RGBC 2 before: 00000040 00000040
NCS, VXY0 0 before: 00001002 00001002
NCS, VXY0 1 before: 00001002 00001002
NCS, VXY0 2 before: 00001004 00001004
NCS, VZ0 0 before: 00000004 00000004
NCS, VZ0 1 before: 00000004 00000004
NCS, VZ0 2 before: 00000004 00000004
NCCS, VXY0 0 before: 00000400 00000400
NCCS, VXY0 1 before: 00000400 00000400
NCCS, VXY0 2 before: 00000401 00000401
NCCS, RGBC 0 before: 00000040 00000040
NCCS, RGBC 1 before: 00000040 00000040
NCCS, RGBC 2 before: 00000040 00000040
CC, RGBC 0 before: 00000080 00000080
CC, RGBC 1 before: 00000080 00000080
CC, RGBC 2 before: 00000080 00000080
CC, IR1 0 before: 00000400 00000400
CC, IR1 1 before: 00000401 00000400
CC, IR1 2 before: 00000401 00000401
CDP, RGBC 0 before: 00000080 00000080
CDP, RGBC 1 before: 00000080 00000080
CDP, RGBC 2 before: 00000080 00000080
CDP, IR1 0 before: 00000400 00000400
CDP, IR1 1 before: 00000400 00000400
CDP, IR1 2 before: 00000401 00000401
SQR, IR1 0 before: 00000004 00000004
SQR, IR1 1 before: 00000004 00000004
SQR, IR1 2 before: 00000010 00000010
SQR, IR2 0 before: 00000004 00000004
SQR, IR2 1 before: 00000010 00000010
SQR, IR2 2 before: 00000010 00000010
SQR, IR3 0 before: 00000010 00000010
Done.
===== 08 GB3 GTE BEFORE 3 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
GTE: an input written n nops before the command (old 00010002, new 00030004; cold, cached):
SQR, IR3 1 before: 00000010 00000010
SQR, IR3 2 before: 00000010 00000010
DCPL, RGBC 0 before: 00000020 00000020
DCPL, RGBC 1 before: 00000040 00000040
DCPL, RGBC 2 before: 00000040 00000040
DCPL, IR1 0 before: 00000000 00000000
DCPL, IR1 1 before: 00000001 00000001
DCPL, IR1 2 before: 00000001 00000001
AVSZ3, SZ1 0 before: 00000202 00000202
AVSZ3, SZ1 1 before: 00000202 00000202
AVSZ3, SZ1 2 before: 00000204 00000204
AVSZ3, SZ2 0 before: 00000202 00000202
AVSZ3, SZ2 1 before: 00000204 00000204
AVSZ3, SZ2 2 before: 00000204 00000204
AVSZ3, SZ3 0 before: 00000204 00000204
AVSZ3, SZ3 1 before: 00000204 00000204
AVSZ3, SZ3 2 before: 00000204 00000204
AVSZ4, SZ0 0 before: 00000304 00000304
AVSZ4, SZ0 1 before: 00000304 00000304
AVSZ4, SZ0 2 before: 00000304 00000304
GPF, IR0 0 before: 00000002 00000002
GPF, IR0 1 before: 00000002 00000002
GPF, IR0 2 before: 00000004 00000004
GPF, IR1 0 before: 00000002 00000002
GPF, IR1 1 before: 00000002 00000002
GPF, IR1 2 before: 00000004 00000004
GPF, IR2 0 before: 00000002 00000002
GPF, IR2 1 before: 00000004 00000004
GPF, IR2 2 before: 00000004 00000004
GPF, IR3 0 before: 00000004 00000004
GPF, IR3 1 before: 00000004 00000004
GPF, IR3 2 before: 00000004 00000004
GPL, IR0 0 before: 00000002 00000002
GPL, IR0 1 before: 00000002 00000002
GPL, IR0 2 before: 00000004 00000004
GPL, MAC1 0 before: 00010002 00010002
GPL, MAC1 1 before: 00010002 00010002
GPL, MAC1 2 before: 00030004 00030004
NCT, VXY2 0 before: 00001004 00001004
NCT, VXY2 1 before: 00001004 00001004
NCT, VXY2 2 before: 00001004 00001004
NCDT, VXY2 0 before: 00000401 00000401
NCDT, VXY2 1 before: 00000401 00000401
NCDT, VXY2 2 before: 00000401 00000401
NCCT, VXY2 0 before: 00000401 00000401
NCCT, VXY2 1 before: 00000401 00000401
NCCT, VXY2 2 before: 00000401 00000401
Done.
===== 09 GA1 GTE AFTER 1 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
GTE: an input written n nops after the command (old 00010002, new 00030004; cold, cached):
RTPS, VXY0 0 after: 00000002 00000002
RTPS, VXY0 1 after: 00000002 00000002
RTPS, VXY0 2 after: 00000002 00000002
RTPS, VXY0 4 after: 00000002 00000002
RTPS, VXY0 6 after: 00000002 00000002
RTPS, VXY0 8 after: 00000002 00000002
RTPS, VXY0 12 after: 00000002 00000002
RTPS, VZ0 0 after: 00000002 00000002
RTPS, VZ0 1 after: 00000002 00000002
RTPS, VZ0 2 after: 00000002 00000002
RTPS, VZ0 4 after: 00000002 00000002
RTPS, VZ0 6 after: 00000002 00000002
RTPS, VZ0 8 after: 00000002 00000002
RTPS, VZ0 12 after: 00000002 00000002
RTPT, VZ0 0 after: 00000002 00000002
RTPT, VZ0 1 after: 00000002 00000002
RTPT, VZ0 2 after: 00000002 00000002
RTPT, VZ0 4 after: 00000002 00000002
RTPT, VZ0 6 after: 00000002 00000002
RTPT, VZ1 0 after: 00000004 00000004
RTPT, VZ1 2 after: 00000002 00000002
RTPT, VZ1 4 after: 00000002 00000002
RTPT, VZ1 6 after: 00000002 00000002
RTPT, VZ1 8 after: 00000002 00000002
RTPT, VZ1 10 after: 00000002 00000002
RTPT, VZ1 12 after: 00000002 00000002
RTPT, VXY2 0 after: 00000004 00000004
RTPT, VXY2 2 after: 00000002 00000004
RTPT, VXY2 4 after: 00000002 00000004
RTPT, VXY2 6 after: 00000002 00000002
RTPT, VXY2 8 after: 00000002 00000002
RTPT, VXY2 10 after: 00000002 00000002
RTPT, VXY2 12 after: 00000002 00000002
RTPT, VXY2 14 after: 00000002 00000002
RTPT, VXY2 16 after: 00000002 00000002
RTPT, VXY2 20 after: 00000002 00000002
RTPT, VZ2 0 after: 00000002 00000004
RTPT, VZ2 2 after: 00000002 00000004
RTPT, VZ2 4 after: 00000002 00000004
RTPT, VZ2 6 after: 00000002 00000002
RTPT, VZ2 8 after: 00000002 00000002
Done.
===== 10 GA2 GTE AFTER 2 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
GTE: an input written n nops after the command (old 00010002, new 00030004; cold, cached):
RTPT, VZ2 10 after: 00000002 00000002
RTPT, VZ2 12 after: 00000002 00000002
RTPT, VZ2 14 after: 00000002 00000002
RTPT, VZ2 16 after: 00000002 00000002
RTPT, VZ2 20 after: 00000002 00000002
NCLIP, SXY2 0 after: FFFFFFC0 FFFFFFC0
NCLIP, SXY2 1 after: FFFFFFE0 FFFFFFE0
NCLIP, SXY2 2 after: FFFFFFE0 FFFFFFE0
NCLIP, SXY2 4 after: FFFFFFE0 FFFFFFE0
NCLIP, SXY2 6 after: FFFFFFE0 FFFFFFE0
OP, IR3 0 after: 00000FFE 00000FFE
OP, IR3 1 after: 00000FFE 00000FFE
OP, IR3 2 after: 00000FFE 00000FFE
OP, IR3 4 after: 00000FFE 00000FFE
DPCS, RGBC 0 after: 00000020 00000020
DPCS, RGBC 1 after: 00000020 00000020
DPCS, RGBC 2 after: 00000020 00000020
DPCS, RGBC 4 after: 00000020 00000020
DPCS, RGBC 6 after: 00000020 00000020
INTPL, IR1 0 after: 00000002 00000002
INTPL, IR1 1 after: 00000002 00000002
INTPL, IR1 2 after: 00000002 00000002
INTPL, IR1 4 after: 00000002 00000002
INTPL, IR1 6 after: 00000002 00000002
MVMVA, VZ0 0 after: 00000002 00000004
MVMVA, VZ0 1 after: 00000002 00000004
MVMVA, VZ0 2 after: 00000002 00000002
MVMVA, VZ0 4 after: 00000002 00000002
MVMVA, VZ0 6 after: 00000002 00000002
SQR, IR3 0 after: 00000004 00000004
SQR, IR3 1 after: 00000004 00000004
SQR, IR3 2 after: 00000004 00000004
SQR, IR3 4 after: 00000004 00000004
NCDS, VXY0 0 after: 00000400 00000400
NCDS, VXY0 2 after: 00000400 00000400
NCDS, VXY0 4 after: 00000400 00000400
NCDS, VXY0 6 after: 00000400 00000400
NCDS, VXY0 8 after: 00000400 00000400
NCDS, VXY0 12 after: 00000400 00000400
NCDS, VXY0 16 after: 00000400 00000400
NCDS, RGBC 0 after: 00000040 00000040
Done.
===== 11 GA3 GTE AFTER 3 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
GTE: an input written n nops after the command (old 00010002, new 00030004; cold, cached):
NCDS, RGBC 2 after: 00000040 00000040
NCDS, RGBC 4 after: 00000020 00000040
NCDS, RGBC 8 after: 00000020 00000040
NCDS, RGBC 12 after: 00000020 00000020
NCDS, RGBC 16 after: 00000020 00000020
NCS, VXY0 0 after: 00001002 00001002
NCS, VXY0 2 after: 00001002 00001002
NCS, VXY0 4 after: 00001002 00001002
NCS, VXY0 6 after: 00001002 00001002
NCS, VXY0 8 after: 00001002 00001002
NCS, VXY0 12 after: 00001002 00001002
NCS, VZ0 0 after: 00000002 00000004
NCS, VZ0 2 after: 00000002 00000002
NCS, VZ0 4 after: 00000002 00000002
NCS, VZ0 6 after: 00000002 00000002
NCS, VZ0 8 after: 00000002 00000002
NCS, VZ0 12 after: 00000002 00000002
NCCS, VXY0 0 after: 00000400 00000400
NCCS, VXY0 2 after: 00000400 00000400
NCCS, VXY0 4 after: 00000400 00000400
NCCS, VXY0 6 after: 00000400 00000400
NCCS, VXY0 8 after: 00000400 00000400
NCCS, VXY0 12 after: 00000400 00000400
NCCS, VXY0 16 after: 00000400 00000400
NCCS, RGBC 0 after: 00000040 00000040
NCCS, RGBC 2 after: 00000040 00000040
NCCS, RGBC 4 after: 00000020 00000040
NCCS, RGBC 6 after: 00000020 00000040
NCCS, RGBC 8 after: 00000020 00000040
NCCS, RGBC 10 after: 00000020 00000020
NCCS, RGBC 12 after: 00000020 00000020
NCCS, RGBC 14 after: 00000020 00000020
NCCS, RGBC 16 after: 00000020 00000020
CC, RGBC 0 after: 00000040 00000080
CC, RGBC 2 after: 00000040 00000080
CC, RGBC 4 after: 00000040 00000040
CC, RGBC 6 after: 00000040 00000040
CC, RGBC 8 after: 00000040 00000040
CC, RGBC 10 after: 00000040 00000040
CDP, RGBC 0 after: 00000080 00000080
CDP, RGBC 2 after: 00000040 00000040
Done.
===== 12 GA4 GTE AFTER 4 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
GTE: an input written n nops after the command (old 00010002, new 00030004; cold, cached):
CDP, RGBC 4 after: 00000040 00000040
CDP, RGBC 6 after: 00000040 00000040
CDP, RGBC 8 after: 00000040 00000040
CDP, RGBC 12 after: 00000040 00000040
DCPL, RGBC 0 after: 00000020 00000020
DCPL, RGBC 1 after: 00000020 00000020
DCPL, RGBC 2 after: 00000020 00000020
DCPL, RGBC 4 after: 00000020 00000020
DCPL, RGBC 6 after: 00000020 00000020
AVSZ3, SZ3 0 after: 00000202 00000202
AVSZ3, SZ3 1 after: 00000202 00000202
AVSZ3, SZ3 2 after: 00000202 00000202
AVSZ3, SZ3 4 after: 00000202 00000202
GPF, IR0 0 after: 00000002 00000002
GPF, IR0 1 after: 00000002 00000002
GPF, IR0 2 after: 00000002 00000002
GPF, IR0 4 after: 00000002 00000002
NCT, VXY2 0 after: 00001004 00001004
NCT, VXY2 4 after: 00001002 00001004
NCT, VXY2 8 after: 00001002 00001002
NCT, VXY2 12 after: 00001002 00001002
NCT, VXY2 16 after: 00001002 00001002
NCT, VXY2 20 after: 00001002 00001002
NCT, VXY2 24 after: 00001002 00001002
NCT, VXY2 28 after: 00001002 00001002
NCDT, VXY2 0 after: 00000401 00000401
NCDT, VXY2 8 after: 00000400 00000400
NCDT, VXY2 16 after: 00000400 00000400
NCDT, VXY2 24 after: 00000400 00000400
NCDT, VXY2 28 after: 00000400 00000400
NCDT, VXY2 32 after: 00000400 00000400
NCDT, VXY2 36 after: 00000400 00000400
NCDT, VXY2 40 after: 00000400 00000400
NCCT, VXY2 0 after: 00000401 00000401
NCCT, VXY2 8 after: 00000400 00000400
NCCT, VXY2 16 after: 00000400 00000400
NCCT, VXY2 24 after: 00000400 00000400
NCCT, VXY2 28 after: 00000400 00000400
NCCT, VXY2 32 after: 00000400 00000400
NCCT, VXY2 36 after: 00000400 00000400
Done.
27 September 2026 (card-2)
===== 00 RUN | BIOS 19951204 System ROM Version 3.0 11/18/96 A
12 tests
A chain program, linked at 80100000
Saved on the card in slot 2, from image 1
COP0 at start: BPC 00000000 BDA 00000000 TAR 8001F3D0 DCIC 00000000 BadVaddr 00000480 BDAM 00000000
BPCM 00000000 SR 40000000 Cause 00000020 EPC 8001FF84 PRId 00000002
===== 01 IOP IO LOAD PAIRS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
loads in pairs by device:
I_STAT lw load, nop: 750
I_STAT lw load, load, nop: 1145
I_STAT lw load, 4 nops, load, nop: 1449
GPUSTAT lw load, nop: 745
GPUSTAT lw load, load, nop: 1138
GPUSTAT lw load, 4 nops, load, nop: 1449
DPCR lw load, nop: 745
DPCR lw load, load, nop: 1138
DPCR lw load, 4 nops, load, nop: 1449
timer 1 lhu load, nop: 750
timer 1 lhu load, load, nop: 1155
timer 1 lhu load, 4 nops, load, nop: 1448
SPUSTAT lhu load, nop: 2246
SPUSTAT lhu load, load, nop: 4252
SPUSTAT lhu load, 4 nops, load, nop: 4241
SPU voice 0 lhu load, nop: 2246
SPU voice 0 lhu load, load, nop: 4247
SPU voice 0 lhu load, 4 nops, load, nop: 4241
CDROM status lbu load, nop: 1242
CDROM status lbu load, load, nop: 2041
CDROM status lbu load, 4 nops, load, nop: 2250
EXP1 lbu load, nop: 1130
EXP1 lbu load, load, nop: 1825
EXP1 lbu load, 4 nops, load, nop: 2024
BIOS lbu load, nop: 1134
BIOS lbu load, load, nop: 1825
BIOS lbu load, 4 nops, load, nop: 2018
RAM lbu load, nop: 944
RAM lbu load, load, nop: 1446
RAM lbu load, 4 nops, load, nop: 1642
I_STAT lw, lw: 1045
I_STAT lw, 1 nop, lw, nop: 1343
RAM lw, 9 nops, lw, nop: 2074
RAM lw, 10 nops, lw, nop: 2184
RAM lw, 12 nops, lw, nop: 2377
Done.
===== 02 SAL STORE AFTER LOAD | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
a store after a load:
RAM lw, nop: 958
RAM sw, nop (no load): 552
RAM lw, RAM sw: 1265
RAM lw, 1 nop, RAM sw: 1454
RAM lw, 2 nops, RAM sw: 1467
RAM lw, 3 nops, RAM sw: 1470
RAM lw, 5 nops, RAM sw: 1477
RAM lw, GP0 sw: 1036
RAM lw, 1 nop, GP0 sw: 1249
RAM lw, 3 nops, GP0 sw: 1239
RAM lw, scratchpad sw: 1044
RAM lw, 1 nop, scratchpad sw: 1240
RAM lw, 3 nops, scratchpad sw: 1268
I_STAT lw, RAM sw: 860
I_STAT lw, 1 nop, RAM sw: 1064
BIOS lw, 1 nop, RAM sw: 3228
BIOS lw, 3 nops, RAM sw: 3220
Done.
===== 03 BRK BRANCH KINDS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
the branch between two loads (4 instructions between each time):
RAM lw, 4 nops, lw, nop: 1679
RAM lw, backward beq path, lw: 1774
RAM lw, forward beq, 3 nops, lw, nop: 1676
RAM lw, addiu, bne on it (taken), nop, lw, nop: 1675
RAM lw, addiu, beq $0 (taken), nop, lw, nop: 1671
BIOS lw, 4 nops, lw, nop: 5618
BIOS lw, backward beq path, lw: 5618
BIOS lw, addiu, bne on it (taken), nop, lw, nop: 5648
Done.
===== 04 UNL UNCACHED LOADS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
code from KSEG1, a load then n nops:
1 nop: 2501
2 nops: 3103
4 nops: 4324
6 nops: 5539
RAM lw: 2899
RAM lw, 1 nop: 3516
RAM lw, 2 nops: 4126
RAM lw, 4 nops: 5352
RAM lw, 6 nops: 6598
BIOS lw: 4708
BIOS lw, 2 nops: 5922
BIOS lw, 6 nops: 8356
I_STAT lw, 2 nops: 3715
Done.
===== 05 FLN FILL LINES | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
i-cache fills, one call (timer overhead included):
1 line: cold 33, cached 28, cold again 33
2 lines: cold 42, cached 37, cold again 42
3 lines: cold 51, cached 28, cold again 51
4 lines: cold 60, cached 26, cold again 60
6 lines: cold 82, cached 29, cold again 78
8 lines: cold 101, cached 37, cold again 96
16 lines: cold 168, cached 69, cold again 174
Done.
===== 06 GB1 GTE BEFORE 1 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
GTE: an input written n nops before the command (old 00010002, new 00030004; cold, cached):
RTPS, VXY0 0 before: 00000004 00000004
RTPS, VXY0 1 before: 00000004 00000004
RTPS, VXY0 2 before: 00000004 00000004
RTPS, VZ0 0 before: 00000004 00000004
RTPS, VZ0 1 before: 00000004 00000004
RTPS, VZ0 2 before: 00000004 00000004
RTPT, VZ0 0 before: 00000004 00000004
RTPT, VZ0 1 before: 00000004 00000004
RTPT, VZ0 2 before: 00000004 00000004
RTPT, VZ1 0 before: 00000004 00000004
RTPT, VZ1 1 before: 00000004 00000004
RTPT, VZ1 2 before: 00000004 00000004
RTPT, VXY2 0 before: 00000004 00000004
RTPT, VXY2 1 before: 00000004 00000004
RTPT, VXY2 2 before: 00000004 00000004
RTPT, VZ2 0 before: 00000004 00000004
RTPT, VZ2 1 before: 00000004 00000004
RTPT, VZ2 2 before: 00000004 00000004
NCLIP, SXY0 0 before: FFFFFF50 FFFFFF50
NCLIP, SXY0 1 before: FFFFFF50 FFFFFF50
NCLIP, SXY0 2 before: FFFFFF70 FFFFFF70
NCLIP, SXY1 0 before: FFFFFFD0 FFFFFFD0
NCLIP, SXY1 1 before: FFFFFFD0 FFFFFFD0
NCLIP, SXY1 2 before: FFFFFFD0 FFFFFFD0
NCLIP, SXY2 0 before: FFFFFFC0 FFFFFFC0
NCLIP, SXY2 1 before: FFFFFFC0 FFFFFFC0
NCLIP, SXY2 2 before: FFFFFFC0 FFFFFFC0
OP, IR1 0 before: FFFFF004 FFFFF004
OP, IR1 1 before: FFFFF004 FFFFF004
OP, IR1 2 before: FFFFF004 FFFFF004
OP, IR2 0 before: 00000FFE 00000FFE
OP, IR2 1 before: 00000FFC 00000FFC
OP, IR2 2 before: 00000FFC 00000FFC
OP, IR3 0 before: 00000FFC 00000FFC
OP, IR3 1 before: 00000FFC 00000FFC
OP, IR3 2 before: 00000FFC 00000FFC
DPCS, RGBC 0 before: 00000020 00000020
DPCS, RGBC 1 before: 00000040 00000040
DPCS, RGBC 2 before: 00000040 00000040
INTPL, IR0 0 before: 00000FFC 00000FFC
INTPL, IR0 1 before: 00000FFC 00000FFC
INTPL, IR0 2 before: 00000FFC 00000FFC
INTPL, IR1 0 before: 00000002 00000002
INTPL, IR1 1 before: 00000004 00000004
INTPL, IR1 2 before: 00000004 00000004
MVMVA, VXY0 0 before: 00000002 00000002
MVMVA, VXY0 1 before: 00000002 00000002
Done.
===== 07 GB2 GTE BEFORE 2 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
GTE: an input written n nops before the command (old 00010002, new 00030004; cold, cached):
MVMVA, VXY0 2 before: 00000004 00000004
MVMVA, VZ0 0 before: 00000004 00000004
MVMVA, VZ0 1 before: 00000004 00000004
MVMVA, VZ0 2 before: 00000004 00000004
MVMVA IR, IR1 0 before: 00000002 00000002
MVMVA IR, IR1 1 before: 00000002 00000002
MVMVA IR, IR1 2 before: 00000004 00000004
MVMVA IR, IR3 0 before: 00000004 00000004
MVMVA IR, IR3 1 before: 00000004 00000004
MVMVA IR, IR3 2 before: 00000004 00000004
NCDS, VXY0 0 before: 00000400 00000400
NCDS, VXY0 1 before: 00000400 00000400
NCDS, VXY0 2 before: 00000401 00000401
NCDS, RGBC 0 before: 00000040 00000040
NCDS, RGBC 1 before: 00000040 00000040
NCDS, RGBC 2 before: 00000040 00000040
NCS, VXY0 0 before: 00001002 00001002
NCS, VXY0 1 before: 00001002 00001002
NCS, VXY0 2 before: 00001004 00001004
NCS, VZ0 0 before: 00000004 00000004
NCS, VZ0 1 before: 00000004 00000004
NCS, VZ0 2 before: 00000004 00000004
NCCS, VXY0 0 before: 00000400 00000400
NCCS, VXY0 1 before: 00000400 00000400
NCCS, VXY0 2 before: 00000401 00000401
NCCS, RGBC 0 before: 00000040 00000040
NCCS, RGBC 1 before: 00000040 00000040
NCCS, RGBC 2 before: 00000040 00000040
CC, RGBC 0 before: 00000080 00000080
CC, RGBC 1 before: 00000080 00000080
CC, RGBC 2 before: 00000080 00000080
CC, IR1 0 before: 00000400 00000400
CC, IR1 1 before: 00000401 00000400
CC, IR1 2 before: 00000401 00000401
CDP, RGBC 0 before: 00000080 00000080
CDP, RGBC 1 before: 00000080 00000080
CDP, RGBC 2 before: 00000080 00000080
CDP, IR1 0 before: 00000400 00000400
CDP, IR1 1 before: 00000400 00000400
CDP, IR1 2 before: 00000401 00000401
SQR, IR1 0 before: 00000004 00000004
SQR, IR1 1 before: 00000004 00000004
SQR, IR1 2 before: 00000010 00000010
SQR, IR2 0 before: 00000004 00000004
SQR, IR2 1 before: 00000010 00000010
SQR, IR2 2 before: 00000010 00000010
SQR, IR3 0 before: 00000010 00000010
Done.
===== 08 GB3 GTE BEFORE 3 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
GTE: an input written n nops before the command (old 00010002, new 00030004; cold, cached):
SQR, IR3 1 before: 00000010 00000010
SQR, IR3 2 before: 00000010 00000010
DCPL, RGBC 0 before: 00000020 00000020
DCPL, RGBC 1 before: 00000040 00000040
DCPL, RGBC 2 before: 00000040 00000040
DCPL, IR1 0 before: 00000000 00000000
DCPL, IR1 1 before: 00000001 00000001
DCPL, IR1 2 before: 00000001 00000001
AVSZ3, SZ1 0 before: 00000202 00000202
AVSZ3, SZ1 1 before: 00000202 00000202
AVSZ3, SZ1 2 before: 00000204 00000204
AVSZ3, SZ2 0 before: 00000202 00000202
AVSZ3, SZ2 1 before: 00000204 00000204
AVSZ3, SZ2 2 before: 00000204 00000204
AVSZ3, SZ3 0 before: 00000204 00000204
AVSZ3, SZ3 1 before: 00000204 00000204
AVSZ3, SZ3 2 before: 00000204 00000204
AVSZ4, SZ0 0 before: 00000304 00000304
AVSZ4, SZ0 1 before: 00000304 00000304
AVSZ4, SZ0 2 before: 00000304 00000304
GPF, IR0 0 before: 00000002 00000002
GPF, IR0 1 before: 00000002 00000002
GPF, IR0 2 before: 00000004 00000004
GPF, IR1 0 before: 00000002 00000002
GPF, IR1 1 before: 00000002 00000002
GPF, IR1 2 before: 00000004 00000004
GPF, IR2 0 before: 00000002 00000002
GPF, IR2 1 before: 00000004 00000004
GPF, IR2 2 before: 00000004 00000004
GPF, IR3 0 before: 00000004 00000004
GPF, IR3 1 before: 00000004 00000004
GPF, IR3 2 before: 00000004 00000004
GPL, IR0 0 before: 00000002 00000002
GPL, IR0 1 before: 00000002 00000002
GPL, IR0 2 before: 00000004 00000004
GPL, MAC1 0 before: 00010002 00010002
GPL, MAC1 1 before: 00010002 00010002
GPL, MAC1 2 before: 00030004 00030004
NCT, VXY2 0 before: 00001004 00001004
NCT, VXY2 1 before: 00001004 00001004
NCT, VXY2 2 before: 00001004 00001004
NCDT, VXY2 0 before: 00000401 00000401
NCDT, VXY2 1 before: 00000401 00000401
NCDT, VXY2 2 before: 00000401 00000401
NCCT, VXY2 0 before: 00000401 00000401
NCCT, VXY2 1 before: 00000401 00000401
NCCT, VXY2 2 before: 00000401 00000401
Done.
===== 10 GA2 GTE AFTER 2 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
GTE: an input written n nops after the command (old 00010002, new 00030004; cold, cached):
RTPT, VZ2 10 after: 00000002 00000002
RTPT, VZ2 12 after: 00000002 00000002
RTPT, VZ2 14 after: 00000002 00000002
RTPT, VZ2 16 after: 00000002 00000002
RTPT, VZ2 20 after: 00000002 00000002
NCLIP, SXY2 0 after: FFFFFFC0 FFFFFFC0
NCLIP, SXY2 1 after: FFFFFFE0 FFFFFFE0
NCLIP, SXY2 2 after: FFFFFFE0 FFFFFFE0
NCLIP, SXY2 4 after: FFFFFFE0 FFFFFFE0
NCLIP, SXY2 6 after: FFFFFFE0 FFFFFFE0
OP, IR3 0 after: 00000FFE 00000FFE
OP, IR3 1 after: 00000FFE 00000FFE
OP, IR3 2 after: 00000FFE 00000FFE
OP, IR3 4 after: 00000FFE 00000FFE
DPCS, RGBC 0 after: 00000020 00000020
DPCS, RGBC 1 after: 00000020 00000020
DPCS, RGBC 2 after: 00000020 00000020
DPCS, RGBC 4 after: 00000020 00000020
DPCS, RGBC 6 after: 00000020 00000020
INTPL, IR1 0 after: 00000002 00000002
INTPL, IR1 1 after: 00000002 00000002
INTPL, IR1 2 after: 00000002 00000002
INTPL, IR1 4 after: 00000002 00000002
INTPL, IR1 6 after: 00000002 00000002
MVMVA, VZ0 0 after: 00000002 00000004
MVMVA, VZ0 1 after: 00000002 00000004
MVMVA, VZ0 2 after: 00000002 00000002
MVMVA, VZ0 4 after: 00000002 00000002
MVMVA, VZ0 6 after: 00000002 00000002
SQR, IR3 0 after: 00000004 00000004
SQR, IR3 1 after: 00000004 00000004
SQR, IR3 2 after: 00000004 00000004
SQR, IR3 4 after: 00000004 00000004
NCDS, VXY0 0 after: 00000400 00000400
NCDS, VXY0 2 after: 00000400 00000400
NCDS, VXY0 4 after: 00000400 00000400
NCDS, VXY0 6 after: 00000400 00000400
NCDS, VXY0 8 after: 00000400 00000400
NCDS, VXY0 12 after: 00000400 00000400
NCDS, VXY0 16 after: 00000400 00000400
NCDS, RGBC 0 after: 00000040 00000040
Done.
Output files that match an earlier run: 09GA1.txt (as run 20260926T0000Z-5501a-card-cpu4) · 11GA3.txt (as run 20260926T0000Z-5501a-card-cpu4) · 12GA4.txt (as run 20260926T0000Z-5501a-card-cpu4).
27 September 2026 (card-d)
===== 00 RUN | BIOS 19951204 System ROM Version 3.0 11/18/96 A
12 tests
A chain program, linked at 80100000
Saved on the card in slot 2, from image 1
COP0 at start: BPC 00000000 BDA 00000000 TAR 8001F3D0 DCIC 00000000 BadVaddr 00000400 BDAM 00000000
BPCM 00000000 SR 40000000 Cause 00000020 EPC 8001FF84 PRId 00000002
===== 01 IOP IO LOAD PAIRS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
loads in pairs by device:
I_STAT lw load, nop: 752
I_STAT lw load, load, nop: 1145
I_STAT lw load, 4 nops, load, nop: 1449
GPUSTAT lw load, nop: 748
GPUSTAT lw load, load, nop: 1142
GPUSTAT lw load, 4 nops, load, nop: 1449
DPCR lw load, nop: 749
DPCR lw load, load, nop: 1138
DPCR lw load, 4 nops, load, nop: 1449
timer 1 lhu load, nop: 755
timer 1 lhu load, load, nop: 1152
timer 1 lhu load, 4 nops, load, nop: 1448
SPUSTAT lhu load, nop: 2251
SPUSTAT lhu load, load, nop: 4247
SPUSTAT lhu load, 4 nops, load, nop: 4241
SPU voice 0 lhu load, nop: 2249
SPU voice 0 lhu load, load, nop: 4247
SPU voice 0 lhu load, 4 nops, load, nop: 4244
CDROM status lbu load, nop: 1242
CDROM status lbu load, load, nop: 2045
CDROM status lbu load, 4 nops, load, nop: 2250
EXP1 lbu load, nop: 1130
EXP1 lbu load, load, nop: 1825
EXP1 lbu load, 4 nops, load, nop: 2018
BIOS lbu load, nop: 1130
BIOS lbu load, load, nop: 1825
BIOS lbu load, 4 nops, load, nop: 2024
RAM lbu load, nop: 944
RAM lbu load, load, nop: 1446
RAM lbu load, 4 nops, load, nop: 1642
I_STAT lw, lw: 1045
I_STAT lw, 1 nop, lw, nop: 1343
RAM lw, 9 nops, lw, nop: 2074
RAM lw, 10 nops, lw, nop: 2184
RAM lw, 12 nops, lw, nop: 2377
Done.
===== 02 SAL STORE AFTER LOAD | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
a store after a load:
RAM lw, nop: 958
RAM sw, nop (no load): 552
RAM lw, RAM sw: 1265
RAM lw, 1 nop, RAM sw: 1454
RAM lw, 2 nops, RAM sw: 1467
RAM lw, 3 nops, RAM sw: 1470
RAM lw, 5 nops, RAM sw: 1477
RAM lw, GP0 sw: 1036
RAM lw, 1 nop, GP0 sw: 1249
RAM lw, 3 nops, GP0 sw: 1239
RAM lw, scratchpad sw: 1044
RAM lw, 1 nop, scratchpad sw: 1240
RAM lw, 3 nops, scratchpad sw: 1261
I_STAT lw, RAM sw: 860
I_STAT lw, 1 nop, RAM sw: 1064
BIOS lw, 1 nop, RAM sw: 3228
BIOS lw, 3 nops, RAM sw: 3220
Done.
===== 03 BRK BRANCH KINDS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
the branch between two loads (4 instructions between each time):
RAM lw, 4 nops, lw, nop: 1678
RAM lw, backward beq path, lw: 1771
RAM lw, forward beq, 3 nops, lw, nop: 1677
RAM lw, addiu, bne on it (taken), nop, lw, nop: 1675
RAM lw, addiu, beq $0 (taken), nop, lw, nop: 1671
BIOS lw, 4 nops, lw, nop: 5618
BIOS lw, backward beq path, lw: 5618
BIOS lw, addiu, bne on it (taken), nop, lw, nop: 5648
Done.
===== 04 UNL UNCACHED LOADS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
code from KSEG1, a load then n nops:
1 nop: 2501
2 nops: 3103
4 nops: 4323
6 nops: 5543
RAM lw: 2902
RAM lw, 1 nop: 3520
RAM lw, 2 nops: 4133
RAM lw, 4 nops: 5353
RAM lw, 6 nops: 6602
BIOS lw: 4708
BIOS lw, 2 nops: 5923
BIOS lw, 6 nops: 8358
I_STAT lw, 2 nops: 3711
Done.
===== 05 FLN FILL LINES | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
i-cache fills, one call (timer overhead included):
1 line: cold 33, cached 28, cold again 33
2 lines: cold 42, cached 37, cold again 42
3 lines: cold 51, cached 28, cold again 51
4 lines: cold 60, cached 26, cold again 60
6 lines: cold 82, cached 29, cold again 78
8 lines: cold 96, cached 37, cold again 96
16 lines: cold 172, cached 69, cold again 168
Done.
===== 06 GB1 GTE BEFORE 1 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
GTE: an input written n nops before the command (old 00010002, new 00030004; cold, cached):
RTPS, VXY0 0 before: 00000004 00000004
RTPS, VXY0 1 before: 00000004 00000004
RTPS, VXY0 2 before: 00000004 00000004
RTPS, VZ0 0 before: 00000004 00000004
RTPS, VZ0 1 before: 00000004 00000004
RTPS, VZ0 2 before: 00000004 00000004
RTPT, VZ0 0 before: 00000004 00000004
RTPT, VZ0 1 before: 00000004 00000004
RTPT, VZ0 2 before: 00000004 00000004
RTPT, VZ1 0 before: 00000004 00000004
RTPT, VZ1 1 before: 00000004 00000004
RTPT, VZ1 2 before: 00000004 00000004
RTPT, VXY2 0 before: 00000004 00000004
RTPT, VXY2 1 before: 00000004 00000004
RTPT, VXY2 2 before: 00000004 00000004
RTPT, VZ2 0 before: 00000004 00000004
RTPT, VZ2 1 before: 00000004 00000004
RTPT, VZ2 2 before: 00000004 00000004
NCLIP, SXY0 0 before: FFFFFF50 FFFFFF50
NCLIP, SXY0 1 before: FFFFFF70 FFFFFF70
NCLIP, SXY0 2 before: FFFFFF70 FFFFFF70
NCLIP, SXY1 0 before: FFFFFFD0 FFFFFFD0
NCLIP, SXY1 1 before: FFFFFFD0 FFFFFFD0
NCLIP, SXY1 2 before: FFFFFFD0 FFFFFFD0
NCLIP, SXY2 0 before: FFFFFFC0 FFFFFFC0
NCLIP, SXY2 1 before: FFFFFFC0 FFFFFFC0
NCLIP, SXY2 2 before: FFFFFFC0 FFFFFFC0
OP, IR1 0 before: FFFFF004 FFFFF004
OP, IR1 1 before: FFFFF004 FFFFF004
OP, IR1 2 before: FFFFF004 FFFFF004
OP, IR2 0 before: 00000FFE 00000FFE
OP, IR2 1 before: 00000FFC 00000FFC
OP, IR2 2 before: 00000FFC 00000FFC
OP, IR3 0 before: 00000FFC 00000FFC
OP, IR3 1 before: 00000FFC 00000FFC
OP, IR3 2 before: 00000FFC 00000FFC
DPCS, RGBC 0 before: 00000020 00000020
DPCS, RGBC 1 before: 00000040 00000040
DPCS, RGBC 2 before: 00000040 00000040
INTPL, IR0 0 before: 00000FFC 00000FFC
INTPL, IR0 1 before: 00000FFC 00000FFC
INTPL, IR0 2 before: 00000FFC 00000FFC
INTPL, IR1 0 before: 00000002 00000002
INTPL, IR1 1 before: 00000004 00000004
INTPL, IR1 2 before: 00000004 00000004
MVMVA, VXY0 0 before: 00000002 00000002
MVMVA, VXY0 1 before: 00000002 00000002
Done.
===== 10 GA2 GTE AFTER 2 | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
GTE: an input written n nops after the command (old 00010002, new 00030004; cold, cached):
RTPT, VZ2 10 after: 00000002 00000002
RTPT, VZ2 12 after: 00000002 00000002
RTPT, VZ2 14 after: 00000002 00000002
RTPT, VZ2 16 after: 00000002 00000002
RTPT, VZ2 20 after: 00000002 00000002
NCLIP, SXY2 0 after: FFFFFFE0 FFFFFFE0
NCLIP, SXY2 1 after: FFFFFFE0 FFFFFFE0
NCLIP, SXY2 2 after: FFFFFFE0 FFFFFFE0
NCLIP, SXY2 4 after: FFFFFFE0 FFFFFFE0
NCLIP, SXY2 6 after: FFFFFFE0 FFFFFFE0
OP, IR3 0 after: 00000FFE 00000FFE
OP, IR3 1 after: 00000FFE 00000FFE
OP, IR3 2 after: 00000FFE 00000FFE
OP, IR3 4 after: 00000FFE 00000FFE
DPCS, RGBC 0 after: 00000020 00000020
DPCS, RGBC 1 after: 00000020 00000020
DPCS, RGBC 2 after: 00000020 00000020
DPCS, RGBC 4 after: 00000020 00000020
DPCS, RGBC 6 after: 00000020 00000020
INTPL, IR1 0 after: 00000002 00000002
INTPL, IR1 1 after: 00000002 00000002
INTPL, IR1 2 after: 00000002 00000002
INTPL, IR1 4 after: 00000002 00000002
INTPL, IR1 6 after: 00000002 00000002
MVMVA, VZ0 0 after: 00000002 00000004
MVMVA, VZ0 1 after: 00000002 00000004
MVMVA, VZ0 2 after: 00000002 00000002
MVMVA, VZ0 4 after: 00000002 00000002
MVMVA, VZ0 6 after: 00000002 00000002
SQR, IR3 0 after: 00000004 00000004
SQR, IR3 1 after: 00000004 00000004
SQR, IR3 2 after: 00000004 00000004
SQR, IR3 4 after: 00000004 00000004
NCDS, VXY0 0 after: 00000400 00000400
NCDS, VXY0 2 after: 00000400 00000400
NCDS, VXY0 4 after: 00000400 00000400
NCDS, VXY0 6 after: 00000400 00000400
NCDS, VXY0 8 after: 00000400 00000400
NCDS, VXY0 12 after: 00000400 00000400
NCDS, VXY0 16 after: 00000400 00000400
NCDS, RGBC 0 after: 00000040 00000040
Done.
Output files that match an earlier run: 07GB2.txt (as run 20260927T0000Z-5501a-card-1) · 08GB3.txt (as run 20260927T0000Z-5501a-card-1) · 09GA1.txt (as run 20260927T0000Z-5501a-card-1) · 11GA3.txt (as run 20260927T0000Z-5501a-card-1) · 12GA4.txt (as run 20260927T0000Z-5501a-card-1).
27 September 2026 (card-g2)
===== 00 RUN | BIOS 19951204 System ROM Version 3.0 11/18/96 A
12 tests
A chain program, linked at 80100000
Saved on the card in slot 2, from image 1
COP0 at start: BPC 00000000 BDA 00000000 TAR 8001F418 DCIC 00000000 BadVaddr 00000400 BDAM 00000000
BPCM 00000000 SR 40000000 Cause 00000020 EPC 8001FF84 PRId 00000002
===== 01 IOP IO LOAD PAIRS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
loads in pairs by device:
I_STAT lw load, nop: 750
I_STAT lw load, load, nop: 1148
I_STAT lw load, 4 nops, load, nop: 1449
GPUSTAT lw load, nop: 745
GPUSTAT lw load, load, nop: 1138
GPUSTAT lw load, 4 nops, load, nop: 1449
DPCR lw load, nop: 745
DPCR lw load, load, nop: 1138
DPCR lw load, 4 nops, load, nop: 1449
timer 1 lhu load, nop: 750
timer 1 lhu load, load, nop: 1155
timer 1 lhu load, 4 nops, load, nop: 1448
SPUSTAT lhu load, nop: 2246
SPUSTAT lhu load, load, nop: 4252
SPUSTAT lhu load, 4 nops, load, nop: 4241
SPU voice 0 lhu load, nop: 2246
SPU voice 0 lhu load, load, nop: 4247
SPU voice 0 lhu load, 4 nops, load, nop: 4241
CDROM status lbu load, nop: 1242
CDROM status lbu load, load, nop: 2041
CDROM status lbu load, 4 nops, load, nop: 2250
EXP1 lbu load, nop: 1130
EXP1 lbu load, load, nop: 1825
EXP1 lbu load, 4 nops, load, nop: 2018
BIOS lbu load, nop: 1130
BIOS lbu load, load, nop: 1825
BIOS lbu load, 4 nops, load, nop: 2024
RAM lbu load, nop: 944
RAM lbu load, load, nop: 1446
RAM lbu load, 4 nops, load, nop: 1642
I_STAT lw, lw: 1045
I_STAT lw, 1 nop, lw, nop: 1343
RAM lw, 9 nops, lw, nop: 2074
RAM lw, 10 nops, lw, nop: 2184
RAM lw, 12 nops, lw, nop: 2377
Done.
===== 03 BRK BRANCH KINDS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
the branch between two loads (4 instructions between each time):
RAM lw, 4 nops, lw, nop: 1679
RAM lw, backward beq path, lw: 1774
RAM lw, forward beq, 3 nops, lw, nop: 1676
RAM lw, addiu, bne on it (taken), nop, lw, nop: 1675
RAM lw, addiu, beq $0 (taken), nop, lw, nop: 1671
BIOS lw, 4 nops, lw, nop: 5618
BIOS lw, backward beq path, lw: 5618
BIOS lw, addiu, bne on it (taken), nop, lw, nop: 5648
Done.
===== 04 UNL UNCACHED LOADS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
code from KSEG1, a load then n nops:
1 nop: 2501
2 nops: 3103
4 nops: 4324
6 nops: 5539
RAM lw: 2899
RAM lw, 1 nop: 3516
RAM lw, 2 nops: 4126
RAM lw, 4 nops: 5352
RAM lw, 6 nops: 6598
BIOS lw: 4708
BIOS lw, 2 nops: 5922
BIOS lw, 6 nops: 8356
I_STAT lw, 2 nops: 3715
Done.
===== 05 FLN FILL LINES | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000400
i-cache fills, one call (timer overhead included):
1 line: cold 33, cached 28, cold again 33
2 lines: cold 42, cached 37, cold again 42
3 lines: cold 51, cached 28, cold again 51
4 lines: cold 60, cached 26, cold again 60
6 lines: cold 82, cached 29, cold again 78
8 lines: cold 101, cached 37, cold again 96
16 lines: cold 168, cached 69, cold again 173
Done.
Output files that match an earlier run: 02SAL.txt (as run 20260927T0000Z-5501a-card-d) · 06GB1.txt (as run 20260927T0000Z-5501a-card-1) · 07GB2.txt (as run 20260927T0000Z-5501a-card-1) · 08GB3.txt (as run 20260927T0000Z-5501a-card-1) · 09GA1.txt (as run 20260927T0000Z-5501a-card-1) · 10GA2.txt (as run 20260927T0000Z-5501a-card-1) · 11GA3.txt (as run 20260927T0000Z-5501a-card-1) · 12GA4.txt (as run 20260927T0000Z-5501a-card-1).
27 September 2026 (card-g3)
===== 00 RUN | BIOS 19951204 System ROM Version 3.0 11/18/96 A
12 tests
A chain program, linked at 80100000
Saved on the card in slot 2, from image 1
COP0 at start: BPC 00000000 BDA 00000000 TAR 8001F418 DCIC 00000000 BadVaddr 00000480 BDAM 00000000
BPCM 00000000 SR 40000000 Cause 00000020 EPC 8001FF84 PRId 00000002
===== 01 IOP IO LOAD PAIRS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
loads in pairs by device:
I_STAT lw load, nop: 752
I_STAT lw load, load, nop: 1145
I_STAT lw load, 4 nops, load, nop: 1449
GPUSTAT lw load, nop: 748
GPUSTAT lw load, load, nop: 1142
GPUSTAT lw load, 4 nops, load, nop: 1449
DPCR lw load, nop: 749
DPCR lw load, load, nop: 1138
DPCR lw load, 4 nops, load, nop: 1449
timer 1 lhu load, nop: 755
timer 1 lhu load, load, nop: 1152
timer 1 lhu load, 4 nops, load, nop: 1448
SPUSTAT lhu load, nop: 2251
SPUSTAT lhu load, load, nop: 4247
SPUSTAT lhu load, 4 nops, load, nop: 4241
SPU voice 0 lhu load, nop: 2249
SPU voice 0 lhu load, load, nop: 4247
SPU voice 0 lhu load, 4 nops, load, nop: 4244
CDROM status lbu load, nop: 1242
CDROM status lbu load, load, nop: 2045
CDROM status lbu load, 4 nops, load, nop: 2250
EXP1 lbu load, nop: 1130
EXP1 lbu load, load, nop: 1825
EXP1 lbu load, 4 nops, load, nop: 2018
BIOS lbu load, nop: 1130
BIOS lbu load, load, nop: 1825
BIOS lbu load, 4 nops, load, nop: 2024
RAM lbu load, nop: 944
RAM lbu load, load, nop: 1446
RAM lbu load, 4 nops, load, nop: 1642
I_STAT lw, lw: 1045
I_STAT lw, 1 nop, lw, nop: 1343
RAM lw, 9 nops, lw, nop: 2074
RAM lw, 10 nops, lw, nop: 2184
RAM lw, 12 nops, lw, nop: 2377
Done.
===== 02 SAL STORE AFTER LOAD | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
a store after a load:
RAM lw, nop: 956
RAM sw, nop (no load): 550
RAM lw, RAM sw: 1265
RAM lw, 1 nop, RAM sw: 1462
RAM lw, 2 nops, RAM sw: 1467
RAM lw, 3 nops, RAM sw: 1479
RAM lw, 5 nops, RAM sw: 1484
RAM lw, GP0 sw: 1044
RAM lw, 1 nop, GP0 sw: 1238
RAM lw, 3 nops, GP0 sw: 1235
RAM lw, scratchpad sw: 1044
RAM lw, 1 nop, scratchpad sw: 1240
RAM lw, 3 nops, scratchpad sw: 1272
I_STAT lw, RAM sw: 863
I_STAT lw, 1 nop, RAM sw: 1063
BIOS lw, 1 nop, RAM sw: 3228
BIOS lw, 3 nops, RAM sw: 3220
Done.
===== 03 BRK BRANCH KINDS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
the branch between two loads (4 instructions between each time):
RAM lw, 4 nops, lw, nop: 1684
RAM lw, backward beq path, lw: 1772
RAM lw, forward beq, 3 nops, lw, nop: 1683
RAM lw, addiu, bne on it (taken), nop, lw, nop: 1682
RAM lw, addiu, beq $0 (taken), nop, lw, nop: 1677
BIOS lw, 4 nops, lw, nop: 5618
BIOS lw, backward beq path, lw: 5618
BIOS lw, addiu, bne on it (taken), nop, lw, nop: 5648
Done.
===== 04 UNL UNCACHED LOADS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
code from KSEG1, a load then n nops:
1 nop: 2500
2 nops: 3103
4 nops: 4319
6 nops: 5543
RAM lw: 2899
RAM lw, 1 nop: 3519
RAM lw, 2 nops: 4126
RAM lw, 4 nops: 5355
RAM lw, 6 nops: 6596
BIOS lw: 4708
BIOS lw, 2 nops: 5922
BIOS lw, 6 nops: 8356
I_STAT lw, 2 nops: 3715
Done.
===== 05 FLN FILL LINES | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
i-cache fills, one call (timer overhead included):
1 line: cold 33, cached 28, cold again 33
2 lines: cold 42, cached 37, cold again 42
3 lines: cold 51, cached 28, cold again 51
4 lines: cold 60, cached 26, cold again 60
6 lines: cold 82, cached 29, cold again 78
8 lines: cold 101, cached 37, cold again 96
16 lines: cold 168, cached 69, cold again 173
Done.
Output files that match an earlier run: 06GB1.txt (as run 20260927T0000Z-5501a-card-2) · 07GB2.txt (as run 20260927T0000Z-5501a-card-2) · 08GB3.txt (as run 20260927T0000Z-5501a-card-2) · 09GA1.txt (as run 20260926T0000Z-5501a-card-cpu4) · 10GA2.txt (as run 20260927T0000Z-5501a-card-2) · 11GA3.txt (as run 20260926T0000Z-5501a-card-cpu4) · 12GA4.txt (as run 20260926T0000Z-5501a-card-cpu4).
28 September 2026 (card-h)
===== 00 RUN | BIOS 19951204 System ROM Version 3.0 11/18/96 A
12 tests
A chain program, linked at 80100000
Saved on the card in slot 2, from image 1
COP0 at start: BPC 00000000 BDA 00000000 TAR BFC02BAC DCIC 00000000 BadVaddr 00000480 BDAM 00000000
BPCM 00000000 SR 40000000 Cause 00000020 EPC 8001FF84 PRId 00000002
===== 01 IOP IO LOAD PAIRS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
loads in pairs by device:
I_STAT lw load, nop: 750
I_STAT lw load, load, nop: 1148
I_STAT lw load, 4 nops, load, nop: 1449
GPUSTAT lw load, nop: 745
GPUSTAT lw load, load, nop: 1138
GPUSTAT lw load, 4 nops, load, nop: 1449
DPCR lw load, nop: 745
DPCR lw load, load, nop: 1138
DPCR lw load, 4 nops, load, nop: 1449
timer 1 lhu load, nop: 750
timer 1 lhu load, load, nop: 1152
timer 1 lhu load, 4 nops, load, nop: 1448
SPUSTAT lhu load, nop: 2246
SPUSTAT lhu load, load, nop: 4252
SPUSTAT lhu load, 4 nops, load, nop: 4241
SPU voice 0 lhu load, nop: 2246
SPU voice 0 lhu load, load, nop: 4247
SPU voice 0 lhu load, 4 nops, load, nop: 4241
CDROM status lbu load, nop: 1242
CDROM status lbu load, load, nop: 2041
CDROM status lbu load, 4 nops, load, nop: 2250
EXP1 lbu load, nop: 1130
EXP1 lbu load, load, nop: 1825
EXP1 lbu load, 4 nops, load, nop: 2018
BIOS lbu load, nop: 1130
BIOS lbu load, load, nop: 1825
BIOS lbu load, 4 nops, load, nop: 2024
RAM lbu load, nop: 944
RAM lbu load, load, nop: 1446
RAM lbu load, 4 nops, load, nop: 1642
I_STAT lw, lw: 1045
I_STAT lw, 1 nop, lw, nop: 1343
RAM lw, 9 nops, lw, nop: 2074
RAM lw, 10 nops, lw, nop: 2184
RAM lw, 12 nops, lw, nop: 2377
Done.
===== 02 SAL STORE AFTER LOAD | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
a store after a load:
RAM lw, nop: 958
RAM sw, nop (no load): 549
RAM lw, RAM sw: 1265
RAM lw, 1 nop, RAM sw: 1462
RAM lw, 2 nops, RAM sw: 1467
RAM lw, 3 nops, RAM sw: 1479
RAM lw, 5 nops, RAM sw: 1484
RAM lw, GP0 sw: 1044
RAM lw, 1 nop, GP0 sw: 1238
RAM lw, 3 nops, GP0 sw: 1235
RAM lw, scratchpad sw: 1044
RAM lw, 1 nop, scratchpad sw: 1240
RAM lw, 3 nops, scratchpad sw: 1272
I_STAT lw, RAM sw: 863
I_STAT lw, 1 nop, RAM sw: 1063
BIOS lw, 1 nop, RAM sw: 3228
BIOS lw, 3 nops, RAM sw: 3220
Done.
===== 03 BRK BRANCH KINDS | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
the branch between two loads (4 instructions between each time):
RAM lw, 4 nops, lw, nop: 1678
RAM lw, backward beq path, lw: 1771
RAM lw, forward beq, 3 nops, lw, nop: 1677
RAM lw, addiu, bne on it (taken), nop, lw, nop: 1675
RAM lw, addiu, beq $0 (taken), nop, lw, nop: 1671
BIOS lw, 4 nops, lw, nop: 5618
BIOS lw, backward beq path, lw: 5618
BIOS lw, addiu, bne on it (taken), nop, lw, nop: 5648
Done.
Output files that match an earlier run: 04UNL.txt (as run 20260927T0000Z-5501a-card-g3) · 05FLN.txt (as run 20260927T0000Z-5501a-card-g3) · 06GB1.txt (as run 20260927T0000Z-5501a-card-2) · 07GB2.txt (as run 20260927T0000Z-5501a-card-2) · 08GB3.txt (as run 20260927T0000Z-5501a-card-2) · 09GA1.txt (as run 20260926T0000Z-5501a-card-cpu4) · 10GA2.txt (as run 20260927T0000Z-5501a-card-2) · 11GA3.txt (as run 20260926T0000Z-5501a-card-cpu4) · 12GA4.txt (as run 20260926T0000Z-5501a-card-cpu4).
References
Categories: Hardware tests