SPU Registers and Envelope: Difference between revisions
| Revision as of 05:18, 23 October 2026 RemmyLee (Hardware tests: nine DMA, MDEC and BIOS test pages with part names for titles; join one-sentence paragraphs per voice.md) | Revision as of 05:49, 23 October 2026 RemmyLee (Hardware tests: the last 15 test pages (timers, SPU, CPU, GPU, DMA, CD-ROM, GTE), See also links both ways; uncited clock claim removed) | ||
| Line 14: | Line 14: | ||
| Nothing is audible during the test. The main volume stays 0000h, SPUCNT bit 14 stays 0, and every sample except the capture tone is silent. The program has 15 groups, and each group restores the registers it touched and keys off every voice before it returns.[^h] The [SPU](/hardware/spu/) page describes the unit, and the [SPU registers](/hardware/spu/registers/), [ADSR](/hardware/spu/adsr/) and [ADPCM](/hardware/spu/adpcm/) pages give the register layouts. | Nothing is audible during the test. The main volume stays 0000h, SPUCNT bit 14 stays 0, and every sample except the capture tone is silent. The program has 15 groups, and each group restores the registers it touched and keys off every voice before it returns.[^h] The [SPU](/hardware/spu/) page describes the unit, and the [SPU registers](/hardware/spu/registers/), [ADSR](/hardware/spu/adsr/) and [ADPCM](/hardware/spu/adpcm/) pages give the register layouts. | ||
| + | See also: | ||
| + | |||
| + | - [SPU Voice Flags and Interrupts](/tests/spu-voice-flags-interrupts/) | ||
| + | - [SPU Envelope Grid and GPU Fill Timing](/tests/spu-envelope-grid-gpu-fill/) | ||
| + | |||
| ## Results | ## Results | ||