25 lines
522 B
ArmAsm
25 lines
522 B
ArmAsm
#if ROM_LAYOUT_STD || (ROM_LAYOUT_M65 && SEGMENT_KERNAL_0)
|
|
|
|
//
|
|
// CHROUT routine - screen support, control codes in quote mode
|
|
//
|
|
|
|
|
|
chrout_screen_quote:
|
|
|
|
// Low control codes are just +$80
|
|
clc
|
|
adc #$80
|
|
|
|
// If it overflowed, then it is a high control code,
|
|
// so we need to make it be $80 + $40 + char
|
|
// as we will have flipped back to just $00 + char, we should
|
|
// now add $c0 if C is set from overflow
|
|
bcc !+
|
|
adc #$BF // C=1, so adding $BF + C = add $C0
|
|
!:
|
|
jmp chrout_screen_literal
|
|
|
|
|
|
#endif // ROM layout
|