sd:sd-8516_programmer_s_reference_guide
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| sd:sd-8516_programmer_s_reference_guide [2026/04/14 06:09] – external edit (Unknown date) 127.0.0.1 | sd:sd-8516_programmer_s_reference_guide [2026/05/04 05:25] (current) – appledog | ||
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| * Sound system overhead: < 5% CPU time | * Sound system overhead: < 5% CPU time | ||
| * Video refresh: 60 Hz (16.67ms frame time) | * Video refresh: 60 Hz (16.67ms frame time) | ||
| - | * BASIC execution speed: | + | * BASIC execution speed: |
| * Forth: 360,000 words/sec | * Forth: 360,000 words/sec | ||
| Line 39: | Line 39: | ||
| == 4. Advanced PEEK and POKE | == 4. Advanced PEEK and POKE | ||
| - | Commands such as DEFCHAR and DRAWCHAR are merely glorified PEEK and POKE commands. At 2,000 lines of BASIC per second on a 4 MHz system, large numbers of PEEK and POKE commands become very useful to control the computer. They are not slow at all! | + | Commands such as DEFCHAR and DRAWCHAR are merely glorified PEEK and POKE commands. At 2,500 lines of BASIC per second on a 4 MHz system, large numbers of PEEK and POKE commands become very useful to control the computer. They are not slow at all! |
| === WAIT | === WAIT | ||
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| Moved to it's own section; | Moved to it's own section; | ||
| - | * [[VC-3 System Interrupt Table]] | ||
| * [[Appendix 7 Kernal Functions]] | * [[Appendix 7 Kernal Functions]] | ||
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