christoph/lecture-operating-system-development
1
Fork 0
Code Activity

Buffered CGA refactor finish

Browse Source
This commit is contained in:
churl
2022-05-20 16:15:43 +02:00
parent 80cbe0900d
commit 5e2196c898
5 changed files with 29 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
c_os/lib/ScrollbackBuffer.cc
View File

@ -25,18 +25,9 @@ void ScrollbackBuffer::get(CGA::cga_line_t* destination, unsigned char page) con
}
}
void ScrollbackBuffer::save_screen(CGA::cga_page_t* destination) const {
mmem::memcpy<CGA::cga_page_t>(destination, this->pagebuffer);
}
void ScrollbackBuffer::restore_screen(CGA::cga_page_t* source) {
mmem::memcpy<CGA::cga_page_t>(this->pagebuffer, source);
}
void ScrollbackBuffer::clear() {
for (unsigned char page = 0; page < this->pages; ++page) {
mmem::zero<CGA::cga_page_t>(this->buffer + page);
}
mmem::zero<CGA::cga_page_t>(this->pagebuffer);
this->pos = 0;
}