mirror of
https://github.com/bobbimanners/emailler.git
synced 2024-11-05 00:04:46 +00:00
33 lines
592 B
ArmAsm
33 lines
592 B
ArmAsm
|
|
.export print_a
|
|
.export print_cr
|
|
.export cls
|
|
.export beep
|
|
|
|
.data
|
|
;use C64 Kernel ROM function to print a character to the screen
|
|
;inputs: A contains petscii value of character to print
|
|
;outputs: none
|
|
print_a = $ffd2
|
|
|
|
.code
|
|
|
|
;use C64 Kernel ROM function to move to a new line
|
|
;inputs: none
|
|
;outputs: none
|
|
print_cr:
|
|
lda #13
|
|
jmp print_a
|
|
|
|
;use C64 Kernel ROM function to clear the screen
|
|
;inputs: none
|
|
;outputs: none
|
|
cls:
|
|
lda #147 ; 'CLR/HOME'
|
|
jmp print_a
|
|
|
|
;currently does nothing (should make a 'beep noise')
|
|
;inputs: none
|
|
;outputs: none
|
|
beep:
|
|
rts |