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This commit is contained in:
Eggert Jung
2025-05-06 18:07:37 +02:00
parent 35c2667fbf
commit 5846351aed
7 changed files with 19 additions and 13 deletions
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2
arch/cga.cc
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@@ -17,7 +17,7 @@ namespace CGA {
}
void setCursor(unsigned abs_x, unsigned abs_y) {
uint16_t pos = abs_y * COLUMNS + abs_x;
uint16_t pos = abs_y * COLUMNS + abs_x;
writeCGAReg(RegisterIndex::CURSOR_LOW, pos & 0xFF);
writeCGAReg(RegisterIndex::CURSOR_HIGH, ((pos >> 8) & 0xFF));

9
arch/serial.cc
View File

@@ -43,9 +43,8 @@ int Serial::write(char out) {
if(out == '\n')
write('\r');
if(readReg(LINE_STATUS_REGISTER) & TRANSMITTER_EMPTY){
writeReg(TRANSMIT_BUFFER_REGISTER, out);
return out;
}
return -1;
while(!(readReg(LINE_STATUS_REGISTER) & TRANSMITTER_EMPTY));
writeReg(TRANSMIT_BUFFER_REGISTER, out);
return out;
}