HelenOS sources

EGA_SCREEN         44 kernel/genarch/include/genarch/drivers/ega/ega.h #define EGA_VRAM_SIZE  (2 * EGA_SCREEN)
EGA_SCREEN        444 kernel/genarch/src/drivers/ega/ega.c 	if (instance->cursor < EGA_SCREEN)
EGA_SCREEN        449 kernel/genarch/src/drivers/ega/ega.c 	    (EGA_SCREEN - EGA_COLS) * 2);
EGA_SCREEN        450 kernel/genarch/src/drivers/ega/ega.c 	memsetw(instance->backbuf + (EGA_SCREEN - EGA_COLS) * 2,
EGA_SCREEN        456 kernel/genarch/src/drivers/ega/ega.c 		    (EGA_SCREEN - EGA_COLS) * 2);
EGA_SCREEN        457 kernel/genarch/src/drivers/ega/ega.c 		memsetw(instance->addr + (EGA_SCREEN - EGA_COLS) * 2,
EGA_SCREEN        498 kernel/genarch/src/drivers/ega/ega.c 	if (instance->cursor >= EGA_SCREEN)
EGA_SCREEN        506 kernel/genarch/src/drivers/ega/ega.c 	    EGA_SCREEN - instance->cursor, EMPTY_CHAR);
EGA_SCREEN        510 kernel/genarch/src/drivers/ega/ega.c 		    EGA_SCREEN - instance->cursor, EMPTY_CHAR);
HelenOS homepage, sources at GitHub