Files
open-roms/c64/kernal/screen/chrout_screen_shift_onoff.s
T

17 lines
254 B
ArmAsm

//
// SHIFT ON/OFF handling within CHROUT
//
chrout_screen_SHIFT_ON:
lda #$00 // enable SHIFT+VENDOR combination
!:
sta MODE
jmp chrout_screen_done
chrout_screen_SHIFT_OFF:
lda #$80 // disable SHIFT+VENDOR combination
bne !- // branch always