c65gm/lib/c64scr.c65

25 lines
253 B
Text

#IFNDEF __C64_SCR
#DEFINE __C64_SCR = 1
GOTO lib_c64scr_skip
LABEL lib_c64scr_blank
ASM
lda $d011
and #($ff-$10)
sta $d011
ENDASM
SUBEND
LABEL lib_c64scr_show
ASM
lda $d011
ora #$10
sta $d011
ENDASM
SUBEND
LABEL lib_c64scr_skip
#IFEND