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---
title: I/O Load and Store Spacing
type: test
summary: Measures how far apart back-to-back I/O register loads go, how an I/O or RAM store between two loads delays the second, and how long an I/O register read holds the RAM access after it.
category: Hardware tests
info: Machine = SCPH-5501
info: Program = SXIOLD4, SXIOST, SXIOST2, SXIOST3 and SXIOHOLD
---

## Overview

Five programs time short instruction sequences between two loads of root counter 2's count. The code runs from the instruction cache after a warming pass, with interrupts off, and each shape runs 8 or 16 times. An output line names the shape and the sample and then gives the cycles between the two timer reads.[^ld4][^hold]

SXIOLD4 times timer loads back to back, and two, three or four loads of GPUSTAT between two timer loads. SXIOST puts a store to GP1 or a store to RAM between two timer loads and follows it with 0 to 2 NOPs. The GP1 store is GP1(04h) with the DMA direction that GPUSTAT already shows. SXIOST2 adds a load of GPUSTAT after the GP1 store, or a store and a load of I_STAT. SXIOST3 runs these pairs in a loop of 16 turns, and SXIOHOLD follows an I/O read with a RAM store or a RAM load, in a loop of 16 turns and in straight code.[^ld4][^st][^st2][^st3][^hold]

See also:

- [Partial Writes to I/O Registers](/tests/partial-register-writes/)
- [CPU Bus Gaps and Cache Isolation](/tests/cpu-bus-gaps/)

## Results

### Back-to-Back I/O Loads

Timer 2 loads back to back went 4 cycles apart in all eight samples. With two, three or four GPUSTAT loads between two timer loads the time was 12, 16 and 20 cycles. Each I/O load in a row therefore took 4 cycles.[^ld4]

### I/O Store Before a Load

Two timer loads with nothing between them went 4 cycles apart. A GP1 store between them made the gap 6 cycles, and so did a GP1 store followed by one NOP. With two NOPs after the store the gap was 7 cycles, and a RAM store between the loads also gave 7 cycles.[^st]

With a GP1 store and a GPUSTAT load between the two timer loads the gap was 10 cycles, with or without a NOP after the store, and 11 cycles with two NOPs. A store and a load of I_STAT gave 10 cycles with or without the NOP.[^st2]

Table: Cycles between two timer 2 reads in SXIOST and SXIOST2

| Between the reads | Cycles |
| --- | --- |
| Nothing | 4 |
| sw GP1 | 6 |
| sw GP1, nop | 6 |
| sw GP1, nop, nop | 7 |
| sw RAM | 7 |
| sw GP1, lw GPUSTAT | 10 |
| sw GP1, nop, lw GPUSTAT | 10 |
| sw GP1, nop, nop, lw GPUSTAT | 11 |
| sw I_STAT, lw I_STAT | 10 |
| sw I_STAT, nop, lw I_STAT | 10 |

In a loop of 16 turns, a body of NOP, GPUSTAT load and NOP took 133 cycles. A GP1 store in place of the first NOP took 132 cycles, and so did a GP1 store with a NOP between it and the load. With two NOPs between them the loop took 148 cycles. The same bodies with I_STAT took 132 cycles.[^st3]

### RAM Access After an I/O Read

In a loop of 16 turns, an I/O read followed by a NOP took 116 cycles. A RAM store straight after the read made it 132 to 141 cycles, and a RAM store after a NOP made it 164 to 173. A RAM load straight after the read made it 196 to 199 cycles, and a RAM load after a NOP 228 to 233. The times were the same whether the read was lw or lhu, and whether it read I_STAT or the timer 1 counter.[^hold]

Table: Cycles for 16 turns in SXIOHOLD

| Body after the read | I_STAT lw | I_STAT lhu | Timer 1 lw | Timer 1 lhu |
| --- | --- | --- | --- | --- |
| nop | 116 | 116 | 116 | 116 |
| sw RAM | 132 to 137 | 132 to 137 | 132 to 141 | 132 to 137 |
| nop, sw RAM | 164 to 165 | 164 to 165 | 164 to 168 | 164 to 173 |
| lw RAM | 196 to 199 | 196 to 199 | 196 to 199 | 196 to 199 |
| nop, lw RAM | 228 to 233 | 228 to 233 | 228 to 233 | 228 to 233 |

In straight code between two timer reads, a timer 1 lhu, a RAM store, a RAM load and a second timer 1 lhu took 24 cycles. A timer 1 lhu, a RAM load, a NOP and a timer 1 lhu took 20 cycles, and 24 in one sample of 16. The same shapes with I_STAT lw took 23 to 25 cycles and 20 cycles. In the loop of 16 turns the first of these shapes took 371 to 382 cycles and the second 307 to 311.[^hold]

## Runs

### 15 October 2026 SXIOLD4

[sxiold4/SXIOLD4.txt](/tests/raw/20261015T2244Z-5501a-link/sxiold4/SXIOLD4.txt)

```
SXDEV I_MASK at init AE420100
SXIOLD4 start
SXIOLD4 A 0: 4 4 4
SXIOLD4 A 1: 4 4 4
SXIOLD4 A 2: 4 4 4
SXIOLD4 A 3: 4 4 4
SXIOLD4 A 4: 4 4 4
SXIOLD4 A 5: 4 4 4
SXIOLD4 A 6: 4 4 4
SXIOLD4 A 7: 4 4 4
SXIOLD4 B 0: 12
SXIOLD4 B 1: 12
SXIOLD4 B 2: 12
SXIOLD4 B 3: 12
SXIOLD4 B 4: 12
SXIOLD4 B 5: 12
SXIOLD4 B 6: 12
SXIOLD4 B 7: 12
SXIOLD4 C 0: 16
SXIOLD4 C 1: 16
SXIOLD4 C 2: 16
SXIOLD4 C 3: 16
SXIOLD4 C 4: 16
SXIOLD4 C 5: 16
SXIOLD4 C 6: 16
SXIOLD4 C 7: 16
SXIOLD4 D 0: 20
SXIOLD4 D 1: 20
SXIOLD4 D 2: 20
SXIOLD4 D 3: 20
SXIOLD4 D 4: 20
SXIOLD4 D 5: 20
SXIOLD4 D 6: 20
SXIOLD4 D 7: 20
SXIOLD4 end PASS
```

### 15 October 2026 SXIOST

[sxiost/SXIOST.txt](/tests/raw/20261015T2314Z-5501a-link/sxiost/SXIOST.txt)

```
SXDEV I_MASK at init AE420100
SXIOST start
SXIOST H 0: 4
SXIOST H 1: 4
SXIOST H 2: 4
SXIOST H 3: 4
SXIOST H 4: 4
SXIOST H 5: 4
SXIOST H 6: 4
SXIOST H 7: 4
SXIOST S 0: 6
SXIOST S 1: 6
SXIOST S 2: 6
SXIOST S 3: 6
SXIOST S 4: 6
SXIOST S 5: 6
SXIOST S 6: 6
SXIOST S 7: 6
SXIOST N 0: 6
SXIOST N 1: 6
SXIOST N 2: 6
SXIOST N 3: 6
SXIOST N 4: 6
SXIOST N 5: 6
SXIOST N 6: 6
SXIOST N 7: 6
SXIOST M 0: 7
SXIOST M 1: 7
SXIOST M 2: 7
SXIOST M 3: 7
SXIOST M 4: 7
SXIOST M 5: 7
SXIOST M 6: 7
SXIOST M 7: 7
SXIOST R 0: 7
SXIOST R 1: 7
SXIOST R 2: 7
SXIOST R 3: 7
SXIOST R 4: 7
SXIOST R 5: 7
SXIOST R 6: 7
SXIOST R 7: 7
SXIOST end PASS
```

### 15 October 2026 SXIOST2

[sxiost2/SXIOST2.txt](/tests/raw/20261015T2343Z-5501a-link/sxiost2/SXIOST2.txt)

```
SXDEV I_MASK at init 3C040100
SXIOST2 start
SXIOST2 P1 0: 10
SXIOST2 P1 1: 10
SXIOST2 P1 2: 10
SXIOST2 P1 3: 10
SXIOST2 P1 4: 10
SXIOST2 P1 5: 10
SXIOST2 P1 6: 10
SXIOST2 P1 7: 10
SXIOST2 P2 0: 10
SXIOST2 P2 1: 10
SXIOST2 P2 2: 10
SXIOST2 P2 3: 10
SXIOST2 P2 4: 10
SXIOST2 P2 5: 10
SXIOST2 P2 6: 10
SXIOST2 P2 7: 10
SXIOST2 P3 0: 11
SXIOST2 P3 1: 11
SXIOST2 P3 2: 11
SXIOST2 P3 3: 11
SXIOST2 P3 4: 11
SXIOST2 P3 5: 11
SXIOST2 P3 6: 11
SXIOST2 P3 7: 11
SXIOST2 Q1 0: 10
SXIOST2 Q1 1: 10
SXIOST2 Q1 2: 10
SXIOST2 Q1 3: 10
SXIOST2 Q1 4: 10
SXIOST2 Q1 5: 10
SXIOST2 Q1 6: 10
SXIOST2 Q1 7: 10
SXIOST2 Q2 0: 10
SXIOST2 Q2 1: 10
SXIOST2 Q2 2: 10
SXIOST2 Q2 3: 10
SXIOST2 Q2 4: 10
SXIOST2 Q2 5: 10
SXIOST2 Q2 6: 10
SXIOST2 Q2 7: 10
SXIOST2 end PASS
```

### 15 October 2026 SXIOST3

[sxiost3/SXIOST3.txt](/tests/raw/20261015T2356Z-5501a-link/sxiost3/SXIOST3.txt)

```
SXDEV I_MASK at init AE420100
SXIOST3 start
SXIOST3 L0 0: 133
SXIOST3 L0 1: 133
SXIOST3 L0 2: 133
SXIOST3 L0 3: 133
SXIOST3 L0 4: 133
SXIOST3 L0 5: 133
SXIOST3 L0 6: 133
SXIOST3 L0 7: 133
SXIOST3 L1 0: 132
SXIOST3 L1 1: 132
SXIOST3 L1 2: 132
SXIOST3 L1 3: 132
SXIOST3 L1 4: 132
SXIOST3 L1 5: 132
SXIOST3 L1 6: 132
SXIOST3 L1 7: 132
SXIOST3 L2 0: 132
SXIOST3 L2 1: 132
SXIOST3 L2 2: 132
SXIOST3 L2 3: 132
SXIOST3 L2 4: 132
SXIOST3 L2 5: 132
SXIOST3 L2 6: 132
SXIOST3 L2 7: 132
SXIOST3 L3 0: 148
SXIOST3 L3 1: 148
SXIOST3 L3 2: 148
SXIOST3 L3 3: 148
SXIOST3 L3 4: 148
SXIOST3 L3 5: 148
SXIOST3 L3 6: 148
SXIOST3 L3 7: 148
SXIOST3 M1 0: 132
SXIOST3 M1 1: 132
SXIOST3 M1 2: 132
SXIOST3 M1 3: 132
SXIOST3 M1 4: 132
SXIOST3 M1 5: 132
SXIOST3 M1 6: 132
SXIOST3 M1 7: 132
SXIOST3 M2 0: 132
SXIOST3 M2 1: 132
SXIOST3 M2 2: 132
SXIOST3 M2 3: 132
SXIOST3 M2 4: 132
SXIOST3 M2 5: 132
SXIOST3 M2 6: 132
SXIOST3 M2 7: 132
SXIOST3 end PASS
```

### 22 October 2026 SXIOHOLD

[sxiohold/SXIOHOLD.txt](/tests/raw/20261022T2120Z-5501a-link/sxiohold/SXIOHOLD.txt)

```
SXIOHOLD start
SXIOHOLD ISW0 0: 116
SXIOHOLD ISW0 1: 116
SXIOHOLD ISW0 2: 116
SXIOHOLD ISW0 3: 116
SXIOHOLD ISW0 4: 116
SXIOHOLD ISW0 5: 116
SXIOHOLD ISW0 6: 116
SXIOHOLD ISW0 7: 116
SXIOHOLD ISW0 8: 116
SXIOHOLD ISW0 9: 116
SXIOHOLD ISW0 10: 116
SXIOHOLD ISW0 11: 116
SXIOHOLD ISW0 12: 116
SXIOHOLD ISW0 13: 116
SXIOHOLD ISW0 14: 116
SXIOHOLD ISW0 15: 116
SXIOHOLD ISWS 0: 136
SXIOHOLD ISWS 1: 135
SXIOHOLD ISWS 2: 132
SXIOHOLD ISWS 3: 136
SXIOHOLD ISWS 4: 134
SXIOHOLD ISWS 5: 132
SXIOHOLD ISWS 6: 136
SXIOHOLD ISWS 7: 137
SXIOHOLD ISWS 8: 132
SXIOHOLD ISWS 9: 135
SXIOHOLD ISWS 10: 132
SXIOHOLD ISWS 11: 132
SXIOHOLD ISWS 12: 134
SXIOHOLD ISWS 13: 134
SXIOHOLD ISWS 14: 132
SXIOHOLD ISWS 15: 132
SXIOHOLD ISWN 0: 164
SXIOHOLD ISWN 1: 164
SXIOHOLD ISWN 2: 165
SXIOHOLD ISWN 3: 165
SXIOHOLD ISWN 4: 164
SXIOHOLD ISWN 5: 164
SXIOHOLD ISWN 6: 164
SXIOHOLD ISWN 7: 164
SXIOHOLD ISWN 8: 165
SXIOHOLD ISWN 9: 164
SXIOHOLD ISWN 10: 164
SXIOHOLD ISWN 11: 165
SXIOHOLD ISWN 12: 164
SXIOHOLD ISWN 13: 164
SXIOHOLD ISWN 14: 165
SXIOHOLD ISWN 15: 165
SXIOHOLD ISWL 0: 196
SXIOHOLD ISWL 1: 196
SXIOHOLD ISWL 2: 196
SXIOHOLD ISWL 3: 196
SXIOHOLD ISWL 4: 199
SXIOHOLD ISWL 5: 196
SXIOHOLD ISWL 6: 199
SXIOHOLD ISWL 7: 199
SXIOHOLD ISWL 8: 196
SXIOHOLD ISWL 9: 197
SXIOHOLD ISWL 10: 196
SXIOHOLD ISWL 11: 196
SXIOHOLD ISWL 12: 198
SXIOHOLD ISWL 13: 196
SXIOHOLD ISWL 14: 199
SXIOHOLD ISWL 15: 196
SXIOHOLD ISWM 0: 231
SXIOHOLD ISWM 1: 228
SXIOHOLD ISWM 2: 232
SXIOHOLD ISWM 3: 229
SXIOHOLD ISWM 4: 228
SXIOHOLD ISWM 5: 228
SXIOHOLD ISWM 6: 228
SXIOHOLD ISWM 7: 228
SXIOHOLD ISWM 8: 228
SXIOHOLD ISWM 9: 228
SXIOHOLD ISWM 10: 232
SXIOHOLD ISWM 11: 228
SXIOHOLD ISWM 12: 228
SXIOHOLD ISWM 13: 228
SXIOHOLD ISWM 14: 233
SXIOHOLD ISWM 15: 228
SXIOHOLD ISH0 0: 116
SXIOHOLD ISH0 1: 116
SXIOHOLD ISH0 2: 116
SXIOHOLD ISH0 3: 116
SXIOHOLD ISH0 4: 116
SXIOHOLD ISH0 5: 116
SXIOHOLD ISH0 6: 116
SXIOHOLD ISH0 7: 116
SXIOHOLD ISH0 8: 116
SXIOHOLD ISH0 9: 116
SXIOHOLD ISH0 10: 116
SXIOHOLD ISH0 11: 116
SXIOHOLD ISH0 12: 116
SXIOHOLD ISH0 13: 116
SXIOHOLD ISH0 14: 116
SXIOHOLD ISH0 15: 116
SXIOHOLD ISHS 0: 134
SXIOHOLD ISHS 1: 134
SXIOHOLD ISHS 2: 132
SXIOHOLD ISHS 3: 135
SXIOHOLD ISHS 4: 132
SXIOHOLD ISHS 5: 136
SXIOHOLD ISHS 6: 134
SXIOHOLD ISHS 7: 132
SXIOHOLD ISHS 8: 136
SXIOHOLD ISHS 9: 137
SXIOHOLD ISHS 10: 132
SXIOHOLD ISHS 11: 134
SXIOHOLD ISHS 12: 134
SXIOHOLD ISHS 13: 132
SXIOHOLD ISHS 14: 132
SXIOHOLD ISHS 15: 134
SXIOHOLD ISHN 0: 164
SXIOHOLD ISHN 1: 164
SXIOHOLD ISHN 2: 165
SXIOHOLD ISHN 3: 164
SXIOHOLD ISHN 4: 164
SXIOHOLD ISHN 5: 165
SXIOHOLD ISHN 6: 164
SXIOHOLD ISHN 7: 164
SXIOHOLD ISHN 8: 164
SXIOHOLD ISHN 9: 164
SXIOHOLD ISHN 10: 165
SXIOHOLD ISHN 11: 164
SXIOHOLD ISHN 12: 164
SXIOHOLD ISHN 13: 165
SXIOHOLD ISHN 14: 165
SXIOHOLD ISHN 15: 164
SXIOHOLD ISHL 0: 196
SXIOHOLD ISHL 1: 196
SXIOHOLD ISHL 2: 196
SXIOHOLD ISHL 3: 197
SXIOHOLD ISHL 4: 196
SXIOHOLD ISHL 5: 196
SXIOHOLD ISHL 6: 199
SXIOHOLD ISHL 7: 196
SXIOHOLD ISHL 8: 196
SXIOHOLD ISHL 9: 199
SXIOHOLD ISHL 10: 196
SXIOHOLD ISHL 11: 198
SXIOHOLD ISHL 12: 196
SXIOHOLD ISHL 13: 199
SXIOHOLD ISHL 14: 196
SXIOHOLD ISHL 15: 198
SXIOHOLD ISHM 0: 228
SXIOHOLD ISHM 1: 228
SXIOHOLD ISHM 2: 228
SXIOHOLD ISHM 3: 228
SXIOHOLD ISHM 4: 232
SXIOHOLD ISHM 5: 229
SXIOHOLD ISHM 6: 228
SXIOHOLD ISHM 7: 228
SXIOHOLD ISHM 8: 228
SXIOHOLD ISHM 9: 228
SXIOHOLD ISHM 10: 228
SXIOHOLD ISHM 11: 228
SXIOHOLD ISHM 12: 228
SXIOHOLD ISHM 13: 233
SXIOHOLD ISHM 14: 228
SXIOHOLD ISHM 15: 228
SXIOHOLD T1W0 0: 116
SXIOHOLD T1W0 1: 116
SXIOHOLD T1W0 2: 116
SXIOHOLD T1W0 3: 116
SXIOHOLD T1W0 4: 116
SXIOHOLD T1W0 5: 116
SXIOHOLD T1W0 6: 116
SXIOHOLD T1W0 7: 116
SXIOHOLD T1W0 8: 116
SXIOHOLD T1W0 9: 116
SXIOHOLD T1W0 10: 116
SXIOHOLD T1W0 11: 116
SXIOHOLD T1W0 12: 116
SXIOHOLD T1W0 13: 116
SXIOHOLD T1W0 14: 116
SXIOHOLD T1W0 15: 116
SXIOHOLD T1WS 0: 132
SXIOHOLD T1WS 1: 132
SXIOHOLD T1WS 2: 136
SXIOHOLD T1WS 3: 137
SXIOHOLD T1WS 4: 132
SXIOHOLD T1WS 5: 135
SXIOHOLD T1WS 6: 132
SXIOHOLD T1WS 7: 136
SXIOHOLD T1WS 8: 134
SXIOHOLD T1WS 9: 132
SXIOHOLD T1WS 10: 136
SXIOHOLD T1WS 11: 141
SXIOHOLD T1WS 12: 132
SXIOHOLD T1WS 13: 132
SXIOHOLD T1WS 14: 134
SXIOHOLD T1WS 15: 134
SXIOHOLD T1WN 0: 168
SXIOHOLD T1WN 1: 164
SXIOHOLD T1WN 2: 164
SXIOHOLD T1WN 3: 164
SXIOHOLD T1WN 4: 165
SXIOHOLD T1WN 5: 164
SXIOHOLD T1WN 6: 164
SXIOHOLD T1WN 7: 165
SXIOHOLD T1WN 8: 164
SXIOHOLD T1WN 9: 164
SXIOHOLD T1WN 10: 164
SXIOHOLD T1WN 11: 164
SXIOHOLD T1WN 12: 165
SXIOHOLD T1WN 13: 165
SXIOHOLD T1WN 14: 164
SXIOHOLD T1WN 15: 164
SXIOHOLD T1WL 0: 196
SXIOHOLD T1WL 1: 196
SXIOHOLD T1WL 2: 196
SXIOHOLD T1WL 3: 199
SXIOHOLD T1WL 4: 196
SXIOHOLD T1WL 5: 197
SXIOHOLD T1WL 6: 196
SXIOHOLD T1WL 7: 196
SXIOHOLD T1WL 8: 199
SXIOHOLD T1WL 9: 196
SXIOHOLD T1WL 10: 196
SXIOHOLD T1WL 11: 199
SXIOHOLD T1WL 12: 199
SXIOHOLD T1WL 13: 196
SXIOHOLD T1WL 14: 198
SXIOHOLD T1WL 15: 196
SXIOHOLD T1WM 0: 228
SXIOHOLD T1WM 1: 228
SXIOHOLD T1WM 2: 228
SXIOHOLD T1WM 3: 228
SXIOHOLD T1WM 4: 228
SXIOHOLD T1WM 5: 228
SXIOHOLD T1WM 6: 232
SXIOHOLD T1WM 7: 229
SXIOHOLD T1WM 8: 228
SXIOHOLD T1WM 9: 228
SXIOHOLD T1WM 10: 228
SXIOHOLD T1WM 11: 228
SXIOHOLD T1WM 12: 233
SXIOHOLD T1WM 13: 228
SXIOHOLD T1WM 14: 228
SXIOHOLD T1WM 15: 228
SXIOHOLD T1H0 0: 116
SXIOHOLD T1H0 1: 116
SXIOHOLD T1H0 2: 116
SXIOHOLD T1H0 3: 116
SXIOHOLD T1H0 4: 116
SXIOHOLD T1H0 5: 116
SXIOHOLD T1H0 6: 116
SXIOHOLD T1H0 7: 116
SXIOHOLD T1H0 8: 116
SXIOHOLD T1H0 9: 116
SXIOHOLD T1H0 10: 116
SXIOHOLD T1H0 11: 116
SXIOHOLD T1H0 12: 116
SXIOHOLD T1H0 13: 116
SXIOHOLD T1H0 14: 116
SXIOHOLD T1H0 15: 116
SXIOHOLD T1HS 0: 132
SXIOHOLD T1HS 1: 132
SXIOHOLD T1HS 2: 134
SXIOHOLD T1HS 3: 132
SXIOHOLD T1HS 4: 136
SXIOHOLD T1HS 5: 137
SXIOHOLD T1HS 6: 132
SXIOHOLD T1HS 7: 135
SXIOHOLD T1HS 8: 132
SXIOHOLD T1HS 9: 136
SXIOHOLD T1HS 10: 134
SXIOHOLD T1HS 11: 132
SXIOHOLD T1HS 12: 132
SXIOHOLD T1HS 13: 134
SXIOHOLD T1HS 14: 134
SXIOHOLD T1HS 15: 132
SXIOHOLD T1HN 0: 173
SXIOHOLD T1HN 1: 165
SXIOHOLD T1HN 2: 164
SXIOHOLD T1HN 3: 164
SXIOHOLD T1HN 4: 164
SXIOHOLD T1HN 5: 164
SXIOHOLD T1HN 6: 165
SXIOHOLD T1HN 7: 164
SXIOHOLD T1HN 8: 164
SXIOHOLD T1HN 9: 165
SXIOHOLD T1HN 10: 164
SXIOHOLD T1HN 11: 165
SXIOHOLD T1HN 12: 165
SXIOHOLD T1HN 13: 164
SXIOHOLD T1HN 14: 164
SXIOHOLD T1HN 15: 165
SXIOHOLD T1HL 0: 196
SXIOHOLD T1HL 1: 196
SXIOHOLD T1HL 2: 199
SXIOHOLD T1HL 3: 196
SXIOHOLD T1HL 4: 196
SXIOHOLD T1HL 5: 199
SXIOHOLD T1HL 6: 196
SXIOHOLD T1HL 7: 197
SXIOHOLD T1HL 8: 196
SXIOHOLD T1HL 9: 196
SXIOHOLD T1HL 10: 199
SXIOHOLD T1HL 11: 199
SXIOHOLD T1HL 12: 196
SXIOHOLD T1HL 13: 198
SXIOHOLD T1HL 14: 196
SXIOHOLD T1HL 15: 199
SXIOHOLD T1HM 0: 228
SXIOHOLD T1HM 1: 229
SXIOHOLD T1HM 2: 228
SXIOHOLD T1HM 3: 228
SXIOHOLD T1HM 4: 228
SXIOHOLD T1HM 5: 228
SXIOHOLD T1HM 6: 228
SXIOHOLD T1HM 7: 228
SXIOHOLD T1HM 8: 232
SXIOHOLD T1HM 9: 229
SXIOHOLD T1HM 10: 228
SXIOHOLD T1HM 11: 233
SXIOHOLD T1HM 12: 228
SXIOHOLD T1HM 13: 228
SXIOHOLD T1HM 14: 228
SXIOHOLD T1HM 15: 233
SXIOHOLD QS 0: 371
SXIOHOLD QS 1: 382
SXIOHOLD QS 2: 373
SXIOHOLD QS 3: 371
SXIOHOLD QS 4: 371
SXIOHOLD QS 5: 373
SXIOHOLD QS 6: 372
SXIOHOLD QS 7: 373
SXIOHOLD QS 8: 373
SXIOHOLD QS 9: 382
SXIOHOLD QS 10: 373
SXIOHOLD QS 11: 371
SXIOHOLD QS 12: 373
SXIOHOLD QS 13: 372
SXIOHOLD QS 14: 373
SXIOHOLD QS 15: 372
SXIOHOLD QL 0: 307
SXIOHOLD QL 1: 311
SXIOHOLD QL 2: 307
SXIOHOLD QL 3: 307
SXIOHOLD QL 4: 311
SXIOHOLD QL 5: 310
SXIOHOLD QL 6: 311
SXIOHOLD QL 7: 311
SXIOHOLD QL 8: 309
SXIOHOLD QL 9: 311
SXIOHOLD QL 10: 307
SXIOHOLD QL 11: 311
SXIOHOLD QL 12: 307
SXIOHOLD QL 13: 311
SXIOHOLD QL 14: 307
SXIOHOLD QL 15: 311
SXIOHOLD XS 0: 24
SXIOHOLD XS 1: 24
SXIOHOLD XS 2: 24
SXIOHOLD XS 3: 24
SXIOHOLD XS 4: 24
SXIOHOLD XS 5: 24
SXIOHOLD XS 6: 24
SXIOHOLD XS 7: 24
SXIOHOLD XS 8: 24
SXIOHOLD XS 9: 24
SXIOHOLD XS 10: 24
SXIOHOLD XS 11: 24
SXIOHOLD XS 12: 24
SXIOHOLD XS 13: 24
SXIOHOLD XS 14: 24
SXIOHOLD XS 15: 24
SXIOHOLD XL 0: 20
SXIOHOLD XL 1: 20
SXIOHOLD XL 2: 20
SXIOHOLD XL 3: 20
SXIOHOLD XL 4: 20
SXIOHOLD XL 5: 20
SXIOHOLD XL 6: 20
SXIOHOLD XL 7: 20
SXIOHOLD XL 8: 20
SXIOHOLD XL 9: 20
SXIOHOLD XL 10: 20
SXIOHOLD XL 11: 20
SXIOHOLD XL 12: 20
SXIOHOLD XL 13: 24
SXIOHOLD XL 14: 20
SXIOHOLD XL 15: 20
SXIOHOLD XI 0: 24
SXIOHOLD XI 1: 24
SXIOHOLD XI 2: 24
SXIOHOLD XI 3: 24
SXIOHOLD XI 4: 24
SXIOHOLD XI 5: 24
SXIOHOLD XI 6: 24
SXIOHOLD XI 7: 24
SXIOHOLD XI 8: 23
SXIOHOLD XI 9: 24
SXIOHOLD XI 10: 24
SXIOHOLD XI 11: 25
SXIOHOLD XI 12: 24
SXIOHOLD XI 13: 24
SXIOHOLD XI 14: 24
SXIOHOLD XI 15: 24
SXIOHOLD XJ 0: 20
SXIOHOLD XJ 1: 20
SXIOHOLD XJ 2: 20
SXIOHOLD XJ 3: 20
SXIOHOLD XJ 4: 20
SXIOHOLD XJ 5: 20
SXIOHOLD XJ 6: 20
SXIOHOLD XJ 7: 20
SXIOHOLD XJ 8: 20
SXIOHOLD XJ 9: 20
SXIOHOLD XJ 10: 20
SXIOHOLD XJ 11: 20
SXIOHOLD XJ 12: 20
SXIOHOLD XJ 13: 20
SXIOHOLD XJ 14: 20
SXIOHOLD XJ 15: 20
SXIOHOLD end PASS
ResetGraph:jtb=801e78b8,env=801e7900
```

## References

[^ld4]: SCPH-5501 output: [sxiold4/SXIOLD4.txt](/tests/raw/20261015T2244Z-5501a-link/sxiold4/SXIOLD4.txt)
[^st]: SCPH-5501 output: [sxiost/SXIOST.txt](/tests/raw/20261015T2314Z-5501a-link/sxiost/SXIOST.txt)
[^st2]: SCPH-5501 output: [sxiost2/SXIOST2.txt](/tests/raw/20261015T2343Z-5501a-link/sxiost2/SXIOST2.txt)
[^st3]: SCPH-5501 output: [sxiost3/SXIOST3.txt](/tests/raw/20261015T2356Z-5501a-link/sxiost3/SXIOST3.txt)
[^hold]: SCPH-5501 output: [sxiohold/SXIOHOLD.txt](/tests/raw/20261022T2120Z-5501a-link/sxiohold/SXIOHOLD.txt)