docs(amiga): Mermaid syntax fixes, 68040 FPU elaboration, Gayle trapezoid→quoted, gcc toolchain integration

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Ilia Sharin 2026-04-27 17:29:29 -04:00
parent a59d8350b3
commit a383d4c065
11 changed files with 2738 additions and 277 deletions

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### Chip RAM Addressing
OCS Agnus could only generate 19-bit DMA addresses (512 KB) or 20-bit (1 MB with Fat Agnus). Super Agnus extends this to **21 bits**, addressing 2 MB of Chip RAM.
OCS Agnus could only generate 19-bit DMA addresses (512 KB) or 20-bit (1 MB with Fat Agnus). Super Agnus extends this to **21 bits**, addressing 2 MB of Chip RAM. See [OCS Chipset Internals](../ocs_a500/chipset_ocs.md) for the original Agnus DMA architecture.
The revision of Super Agnus present determines the Chip RAM limit: