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

22 lines
360 B
ArmAsm

// #LAYOUT# STD * #TAKE
// #LAYOUT# X16 * #IGNORE
// #LAYOUT# * KERNAL_0 #TAKE
// #LAYOUT# * * #IGNORE
//
// Helper routine - check character in .A, toggles quote flag if needed
//
screen_check_toggle_quote:
cmp #$22
bne !+
lda QTSW
eor #$80
sta QTSW
lda #$22 // restore previous .A valuee
!:
rts