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Place end-of-frame interrupt appropriately.

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This commit is contained in:
Thomas Harte 2023-03-07 22:12:06 -05:00
parent cc7b209e1a
commit 6845008fd4
1 changed files with 3 additions and 0 deletions
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Components/9918/Implementation/9918.cpp
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@ -795,6 +795,9 @@ void Base<personality>::commit_register(int reg, uint8_t value) {
case 9:
mode_timing_.pixel_lines = (value & 0x80) ? 212 : 192;
mode_timing_.end_of_frame_interrupt_position.row = mode_timing_.pixel_lines+1;
// TODO: on the Yamaha, at least, tie this interrupt overtly to vertical state.
LOG("TODO: Yamaha line count, interlace, etc; " << PADHEX(2) << +value);
// b7: 1 = 212 lines of pixels; 0 = 192
// b5 & b4: select simultaneous mode (seems to relate to line length and in-phase colour?)