millfork/examples/a8/grand_theft_antic.mfk

byte i @ $b0
pointer screen @ $b2
array(word) scores[17] @ $80

asm void openmode(byte register(a) m) @ $ef9c extern

asm void pause() {
  lda os_RTCLOK.b2
  .rt_check:
  cmp os_RTCLOK.b2
  beq .rt_check
  rts
}

// print in HEX
void printScore(word val) {
  array(byte) tmp[4]
  byte iter

  tmp[0] = val.hi >> 4
  tmp[1] = val.hi & %00001111
  tmp[2] = val.lo >> 4
  tmp[3] = val.lo & %00001111

  for iter:tmp {
    if tmp[iter] < 10 {
      screen[iter] = tmp[iter] + $10
    } else {
      screen[iter] = tmp[iter] + $17
    }
  }

  if i < 16 {
    screen[4] = 0
    screen[5] = 'G' atariscr
    screen[6] = 'R' atariscr
    screen[7] = '.' atariscr
    if i < 10 {
      screen[8] = i + $10
    } else {
      screen[8] = i + $17
    }
  } else {
    screen[4] = 0
    screen[5] = 'O' atariscr
    screen[6] = 'F' atariscr
    screen[7] = 'F' atariscr
  }

  screen += 40
}


void main(){
  for i:scores {
    scores[i] = 0
  }

  for i,0,to,15 {
    openmode(i)
    pause()
    os_RTCLOK.b2 = 0
    while os_RTCLOK.b2 < 100 {
      scores[i] += 1
    }
  }

  os_SDMCTL = 0
  i = 16
  pause()
  os_RTCLOK.b2 = 0
  while os_RTCLOK.b2 < 100 {
    scores[i] += 1
  }
  os_SDMCTL = $22

  pause()
  openmode(0)
  screen = os_SAVMSC

  for i:scores {
    printScore(scores[i])
  }

  while true {}
}