5 ms·
Writing assembly programs for DOS was incredibly easy: BIOS calls via interrupts, so you could already do a lot. Fixed video memory address... and the BIOS in o
by antirez 2y ago
Writing assembly programs for DOS was incredibly easy: BIOS calls via interrupts, so you could already do a lot. Fixed video memory address... and the BIOS in order to enter the video modes without poking the video card directly. High level and low level mixed together.