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CLK/OSBindings/Mac/Clock SignalTests/Amiga Blitter Tests
2022-08-07 21:27:11 -04:00
..
Addams Family Intro.json Remove partially-captured head. 2022-08-06 22:35:18 -04:00
clock.json Introduce failing 'clock' test case. 2021-10-31 16:12:51 -07:00
gadget toggle.json
icon highlight.json
inclusive fills.json Adds inclusive fill test; fixes inclusive fills. 2021-11-07 14:26:13 -08:00
kickstart13 boot logo.json
RAM disk open.json
README.md Add README.md 2021-12-07 18:19:51 -05:00
sector decode.json
Spindizzy Worlds.json Add Spindizzy test. 2022-08-07 21:27:11 -04:00
spots.json Introduce test case for fill mode. 2021-10-31 14:12:26 -07:00
window drag.json
window resize.json

Amiga Blitter Tests

These tests record register writes and subsequent memory accesses by the Amiga Blitter over a variety of test cases. It is believed that they test all functionality other than stippled lines.

They were generated using a slightly-inaccurate public domain model of the chip rather than from the real thing. In particular:

  • these tests record the output as though the Blitter weren't pipelined — assuming all channels enabled, it always reads via A, then B, then C, then writes via D. The real Blitter performs two cycles of reads before its first write, and adds a final write with no additional reads; and
  • the tests do not record which pointer is used for a write target and therefore do not observe that the Blitter will use pointer C as a write destination for the first pixel of a line.