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

20 lines
285 B
ArmAsm

screen_advance_to_next_line:
// Go to start of the line
lda #0
sta PNTR
// Check if we are at the bottom of the screen
ldy TBLX
cpy #$24
bne !+
// We need to scroll the screen up
jsr screen_scroll_up
skip_2_bytes_trash_nvz
!:
inc TBLX
jmp chrout_screen_calc_lptr_done