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Line 2,997:
Line 2,997: − ==== Override Types ==== − + − + − + − + − + − |- − | 0b100 || Falcon IMEM <-> Falcon $cX register − |- − | 0b101 || Falcon IMEM <-> Falcon crypto input/output stream − |- − | 0b110 || External memory <-> Falcon IMEM <-> Falcon $cX register − |- − | 0b111 || External memory <-> Falcon IMEM <-> Falcon crypto input/output stream
→Notes
The argument to cxset specifies the type of behavior change in the top 3 bits, and the number of DMA-related instructions the effect lasts for in the lower 5 bits.
The argument to cxset specifies the type of behavior change in the top 3 bits, and the number of DMA-related instructions the effect lasts for in the lower 5 bits.
{| class=wikitable
{| class=wikitable
! Value || Effect
! Bits || Description
|-
|-
| 0b000 || Falcon DMEM <-> Falcon $cX register
| 0-4 || Number of instructions it is valid for
|-
|-
| 0b001 || Falcon DMEM <-> Falcon crypto input/output stream
| 5 || Crypto destination/source select (0=crypto register, 1=crypto stream)
|-
|-
| 0b010 || External memory <-> Falcon DMEM <-> Falcon $cX register
| 6 || External memory override (0=Disabled, 1=Enabled)
|-
|-
| 0b011 || External memory <-> Falcon DMEM <-> Falcon crypto input/output stream
| 7 || Internal memory select (0=DMEM, 1=IMEM)
|}
|}