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10fa4bc72d
- Every time we process an ACK opcode, toggle page 1/page 2 soft switches to steer subsequent writes between MAIN and AUX memory - while I'm here, squeeze out some unnecessary operations from the buffer management On the player side, this is implemented by maintaining two screen memory maps, and alternating between opcode streams for each of them. This is using entirely the wrong colour model for errors, but surprisingly it already works pretty well in practise (and the frame rate is acceptable on test videos) DHGR/HGR could be made runtime selectable by adding a header byte that determines whether to set the DHGR soft switches before initiating the decode loop. While I'm in here, fix op_terminate to clear keyboard strobe before waiting. |
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apple2-asm-hgr.cfg | ||
main.s | ||
Makefile |