Timing Test - redcode/ZXSpectrum GitHub Wiki
Author: Rak, Patrik
License: GPL
Version | Release date | Links | Download |
---|---|---|---|
v0.3 | 2013-12-09 | Forum post | zip (hosted) - zip (original URL) |
v0.2 | 2007-09-25 | Forum post 1, Forum post 2 | zip (hosted) - zip (original URL) |
ZX Spectrum 48K | |
---|---|
Frame duration | 0: contended NOP |
Early and late timings |
Early timings Late timings |
1: snow effect NOP | 2: IN #00FE IO |
Early timings Late timings |
Early timings Late timings |
3: IN #00FF IO | 4: IN #7FFE IO |
Early and late timings |
Early timings Late timings |
5: IN #7FFF IO | 6: IN #FFFE IO |
Early timings Late timings |
Early timings Late timings |
7: IN #FFFF IO | 8: 128k page RET |
Early and late timings |
Early and late timings |
ZX Spectrum + 128K / +2 (any mode) | |
Frame duration | 0: contended NOP |
Early and late timings |
Early timings Late timings |
1: snow effect NOP | 2: IN #00FE IO |
Early timings Late timings |
Early timings Late timings |
3: IN #00FF IO | 4: IN #7FFE IO |
Early and late timings |
Early timings Late timings |
5: IN #7FFF IO | 6: IN #FFFE IO |
Early timings Late timings |
Early timings Late timings |
7: IN #FFFF IO | 8: 128k page RET |
Early and late timings |
Early and late timings |
ZX Spectrum +2A / +2B / +3 / +3B (any mode) | |
Frame duration | 0: contended NOP |
1: snow effect NOP | 2: IN #00FE IO |
3: IN #00FF IO | 4: IN #7FFE IO |
5: IN #7FFF IO | 6: IN #FFFE IO |
7: IN #FFFF IO | 8: 128k page RET |
ZX Spectrum 48K | |
---|---|
Frame duration | 0: contended NOP |
Early and late timings |
Early timings Late timings |
1: snow effect NOP | 2: IN #00FE IO |
Early timings Late timings |
Early timings Late timings |
3: IN #00FF IO | 4: IN #7FFE IO |
Early and late timings |
Early timings Late timings |
5: IN #7FFF IO | 6: IN #FFFE IO |
Early timings Late timings |
Early timings Late timings |
7: IN #FFFF IO | 8: 128k page RET |
Early and late timings |
Early and late timings |
Tested by Víctor Iborra
128K mode | |
---|---|
Frame duration | 0: contended NOP |
1: snow effect NOP | 2: IN #00FE IO |
3: IN #00FF IO | 4: IN #7FFE IO |
5: IN #7FFF IO | 6: IN #FFFE IO |
7: IN #FFFF IO | 8: 128k page RET |
48K mode | |
---|---|
Frame duration | 0: contended NOP |
1: snow effect NOP | 2: IN #00FE IO |
3: IN #00FF IO | 4: IN #7FFE IO |
5: IN #7FFF IO | 6: IN #FFFE IO |
7: IN #FFFF IO | 8: 128k page RET |