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| author | Kimplul <kimi.h.kuparinen@gmail.com> | 2024-09-25 21:00:16 +0300 |
|---|---|---|
| committer | Kimplul <kimi.h.kuparinen@gmail.com> | 2024-09-25 21:00:16 +0300 |
| commit | 6d0e7c5eba49efc171e63ff2631722a5c7f95460 (patch) | |
| tree | 9159d22c6ee1ee2949dcf8455998405b031cb351 /tests/simple_grid/test.c | |
| parent | fecb86f6093c1e8aed6ab05c29c5af9d0cb93157 (diff) | |
| download | gran-6d0e7c5eba49efc171e63ff2631722a5c7f95460.tar.gz gran-6d0e7c5eba49efc171e63ff2631722a5c7f95460.zip | |
technically speaking deadlock free, but starves
Diffstat (limited to 'tests/simple_grid/test.c')
| -rw-r--r-- | tests/simple_grid/test.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/tests/simple_grid/test.c b/tests/simple_grid/test.c index 782062d..07f1123 100644 --- a/tests/simple_grid/test.c +++ b/tests/simple_grid/test.c @@ -1,14 +1,17 @@ #define X 64 #define Y 64 -void _start(unsigned char x, unsigned char y) +void _start(unsigned short x, unsigned short y) { - volatile unsigned long *counter = (unsigned long *)4096; - volatile char *uart = (char *)8192; + volatile unsigned long *counter = (unsigned long *)((1ULL << 48) | (1ULL << 32)); + volatile char *uart = (char *)4096; /* very hacky, not recommended but good enough for testing */ - if (x == 0 && y == 0) + if (x == 0 && y == 1) { *counter = 0; + *uart = '0'; + *uart = '\n'; + } else while (*counter != ((x << 8) | y)) ; |