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Corrects top border.

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This commit is contained in:
Thomas Harte 2021-06-15 21:48:11 -04:00
parent 6c9dacbe89
commit 5fc91effb5
1 changed files with 6 additions and 5 deletions
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11
Machines/Enterprise/Nick.cpp
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@ -106,8 +106,13 @@ void Nick::run_for(HalfCycles duration) {
} }
// Special: set mode as soon as it's known. It'll be needed at the end of HSYNC. // Special: set mode as soon as it's known. It'll be needed at the end of HSYNC.
if(!window) { if(window < 2 && fetch_spot >= 2) {
// Set the output mode and margin.
left_margin_ = line_parameters_[2] & 0x3f;
right_margin_ = line_parameters_[3] & 0x3f;
mode_ = Mode((line_parameters_[1] >> 1)&7); mode_ = Mode((line_parameters_[1] >> 1)&7);
// Act as if proper state transitions had occurred while HSYNC is being output.
if(mode_ == Mode::Vsync) { if(mode_ == Mode::Vsync) {
state_ = State::Blank; state_ = State::Blank;
} else { } else {
@ -127,10 +132,6 @@ void Nick::run_for(HalfCycles duration) {
// Determine the line data pointers. // Determine the line data pointers.
line_data_pointer_[0] = uint16_t(line_parameters_[4] | (line_parameters_[5] << 8)); line_data_pointer_[0] = uint16_t(line_parameters_[4] | (line_parameters_[5] << 8));
line_data_pointer_[1] = uint16_t(line_parameters_[6] | (line_parameters_[7] << 8)); line_data_pointer_[1] = uint16_t(line_parameters_[6] | (line_parameters_[7] << 8));
// Set the output mode and margin.
left_margin_ = line_parameters_[2] & 0x3f;
right_margin_ = line_parameters_[3] & 0x3f;
} }
} }