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Switch interpretation to support cursor on/off.

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This commit is contained in:
Thomas Harte 2023-12-04 15:54:56 -05:00
parent 3523278057
commit 8103f8e682
1 changed files with 3 additions and 1 deletions
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4
Components/6845/CRTC6845.hpp
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@ -94,7 +94,7 @@ template <class T, CursorType cursor_type> class CRTC6845 {
}
void set_register(uint8_t value) {
static uint8_t masks[] = {
static constexpr uint8_t masks[] = {
0xff, 0xff, 0xff, 0xff, 0x7f, 0x1f, 0x7f, 0x7f,
0xff, 0x1f, 0x7f, 0x1f, 0x3f, 0xff, 0x3f, 0xff
};
@ -267,6 +267,8 @@ template <class T, CursorType cursor_type> class CRTC6845 {
switch(registers_[10] >> 5) {
case 0b11: is_cursor_line_ &= (field_count_ & 15) < 5; break;
case 0b00: is_cursor_line_ &= bool(field_count_ & 16); break;
case 0b01: is_cursor_line_ = false; break;
case 0b10: is_cursor_line_ = true; break;
default: break;
}
break;