Resources by purist
SH7091 "Priv" manual
Unversioned
Secret SH7091 instruction: FSCA (Floating Point Sine And Cosine Approximate)
Restrictions on CPU use
11 Mar 99
Summary of differences between a generic SH4 and SH4 as it is implemented in the Dreamcast
DMA access notes for SH4 address space
03/30/1999
A table of SH4 address space mappings, access times, and DMA restrictions
G2 Bus Restrictions (Hardware)
February 18th, 1999
Restrictions on hardware that connects to the G2 Bus Expansion Area.
G2 Bus Restrictions (Software)
February 17th, 1999
Access to memory areas over the G2 bus is subject to restrictions
Several restrictions on Dreamcast hardware: AICA, HOLLY, SH4, file system, peripherals
How to change interrupt registers with Holly
March 10th, 1999
There is a set procedure for changing interrupt registers with Holly.
Restrictions for nearly every HOLLY register
Very brief overview of Dreamcast components
Tutorial, Hardware, Programming, VMU-BIOS, Sound, Simulator
Maple Bus Related Document Map
1999/05/10
Diagram of the Maple Bus documentation hierarchy
Dreamcast "Maple Bus" peripheral interface description, framing, data formats
Protocol format for Dreamcast camera
Protocol format for Dreamcast storage media / file exchange
Protocol format for Dreamcast mouse