~mdw / zx-fizzbuzz / blame
| Commit | Line | Data |
|---|---|---|
| 64b6fca5 | 1 | ;;; -*-asm-*- |
| 4278b406 MW |
2 | ;;; (c) 2021 Mark Wooding |
| 3 | ||
| 4 | ;;;----- Licensing notice --------------------------------------------------- | |
| 5 | ;;; | |
| 6 | ;;; This file is part of ZX Fizzbuzz. | |
| 7 | ;;; | |
| 8 | ;;; ZX Fizzbuzz is free software: you can redistribute it and/or modify it | |
| 9 | ;;; under the terms of the GNU Lesser General Public License as published | |
| 10 | ;;; by the Free Software Foundation; either version 3 of the License, or | |
| 11 | ;;; (at your option) any later version. | |
| 12 | ;;; | |
| 13 | ;;; ZX Fizzbuzz is distributed in the hope that it will be useful, but | |
| 14 | ;;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 16 | ;;; Lesser General Public License for more details. | |
| 17 | ;;; | |
| 18 | ;;; You should have received a copy of the GNU Lesser General Public | |
| 19 | ;;; License along with ZX Fizzbuzz. If not, see | |
| 20 | ;;; <https://www.gnu.org/licenses/>. | |
| 64b6fca5 MW |
21 | |
| 22 | org 0x7000 | |
| 23 | ||
| 24 | spc: equ ' ' | |
| 25 | ||
| 26 | tvflag: equ 0x5c3c | |
| 27 | ||
| 28 | fixdig: macro | |
| 29 | or 0x30 | |
| 30 | endm | |
| 31 | ||
| 32 | print_a: macro | |
| 33 | rst 0x10 | |
| 34 | endm | |
| 35 | ||
| 36 | endstrp: macro | |
| 37 | and a | |
| 38 | endm | |
| 39 | ||
| 40 | jr setup | |
| 41 | ||
| 42 | fizz: db "fizz", 0 | |
| 43 | buzz: db "buzz", 0 | |
| 44 | ||
| 45 | setup: | |
| 46 | ;; Use the main screen. | |
| 47 | xor a | |
| 48 | ld (tvflag), a |