SPU Registers and Envelope: Difference between revisions
| Revision as of 05:40, 23 October 2026 RemmyLee (Hardware tests: 15 more test pages (CPU, DMA, SPU, GPU, MDEC, CD-ROM, bus), each with See also links to the pages that measure the same parts) | Revision as of 05:41, 23 October 2026 RemmyLee (Hardware tests: See also links back from 37 existing pages to the new ones) | ||
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| 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/) | ||
| + | |||
| ## Results | ## Results | ||