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Hack in low-resolution Mode 7.

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This commit is contained in:
Thomas Harte
2025-09-24 22:25:43 -04:00
parent 7015e46227
commit b6e41ceea7
2 changed files with 34 additions and 13 deletions
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Components/SAA5050/SAA5050.cpp
+8 -8
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@@ -121,7 +121,7 @@ void SAA5050Serialiser::begin_frame() {
void SAA5050Serialiser::begin_line() {
++line_;
if(line_ == 20) {
if(line_ == 10) {
line_ = 0;
++row_;
}
@@ -151,13 +151,13 @@ void SAA5050Serialiser::add(const uint8_t c) {
}
// TODO: proper scaling!
const uint8_t source = font[c - 32][line_ >> 1];
const uint8_t source = font[c - 32][line_];
output_.pixels = uint16_t(
((source & 0x01) ? 0xb0000'0000'0011 : 0) |
((source & 0x02) ? 0xb0000'0000'1100 : 0) |
((source & 0x04) ? 0xb0000'0011'0000 : 0) |
((source & 0x08) ? 0xb0000'1100'0000 : 0) |
((source & 0x10) ? 0xb0011'0000'0000 : 0) |
((source & 0x20) ? 0xb1100'0000'0000 : 0)
((source & 0x01) ? 0b0000'0000'0011 : 0) |
((source & 0x02) ? 0b0000'0000'1100 : 0) |
((source & 0x04) ? 0b0000'0011'0000 : 0) |
((source & 0x08) ? 0b0000'1100'0000 : 0) |
((source & 0x10) ? 0b0011'0000'0000 : 0) |
((source & 0x20) ? 0b1100'0000'0000 : 0)
);
}