diff options
Diffstat (limited to 'src/getsum.c')
| -rw-r--r-- | src/getsum.c | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/src/getsum.c b/src/getsum.c index 31626fe..fd0e4a4 100644 --- a/src/getsum.c +++ b/src/getsum.c @@ -2,9 +2,24 @@ Copyright 2022-2023 Gabriel Jensen. This file is part of agbsum. - agbsum is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. - agbsum is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. - You should have received a copy of the GNU Affero General Public License along with agbsum. If not, see <https://www.gnu.org/licenses/>. + + agbsum is free software: you can redistribute it + and/or modify it under the terms of the GNU + Affero General Public License as published by + the Free Software Foundation, either version 3 + of the License, or (at your option) any later + version. + + agbsum is distributed in the hope that it will + be useful, but WITHOUT ANY WARRANTY; without + even the implied warranty of MERCHANTABILITY + or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Affero General Public License for more + details. + + You should have received a copy of the GNU + Affero General Public License along with agbsum. + If not, see <https://www.gnu.org/licenses/>. */ #include <agbsum.h> @@ -12,14 +27,14 @@ #include <stdint.h> uint8_t -agb_getsum (void const* const restrict romptr) +agb_getsum (void const* const restrict imgptr) { - uint8_t const* restrict rom = romptr; - uint8_t sum = 0x0u; + uint8_t const* restrict img = imgptr; + uint8_t sum = UINT8_C(0x0); - for (char unsigned const* restrict pos = rom; pos != rom + agb_sumoff; ++pos) {sum += *pos;} + for (char unsigned const* restrict pos = img; pos != img + agb_sumoff; ++pos) { sum += *pos; } - sum = 0x0u - (0x19u + sum); + sum = -(UINT8_C(0x19) + sum); return sum; } |