Renee Cousins

In this use case, they're functionally similar, but the CBTD: - has no direction (save drd_rl_to_fpga) - has a much shorter propagation delay (150ps versus ~2.5ns) - has slightly more...

Amiga's power is notoriously bad given that they're 35-year-old machines (or more). The Denise socket is close enough to the mains that this might not be worth it, but a...

USB access via ANAIIS

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This would grant access to the Pi's USB ports from ANAIIS, a USB stack for the Amiga which is compatible with the stock 7MHz 68000 CPU. They provide a libusb-based...

Poor JIT performance on ADDX?

4

There seems to be a strong slow down with JIT when it encounters ADDX.

Images

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Need to add the transparency bit in the colour look up tables.

The original Denise code did not read the mouse quadrature. On the Amiga this is multiplexed on the CCK signal and should be read on the CCKQ edge. This has...

Remove PLL and rely on stock clocks. The original Denise chip has only two clock inputs: 7M and CCK. From this, it's possible to drive a 14MHz event on the...

Reorder Opcode Table

2

Now that the opcode table is split we need to rearrange the fragments to optimize cache locality. Consult the Cyclone 68000 project for a good template to use for which...

There are some really good ColdFire opcodes we can include that won't confuse core auto-detection. What this would allow is the use of a more modern compiler like CodeWarrior, which...