diff options
| author |  zinc <zinc@downsta.ir>
| 2026-10-15 18:14:02 +0330 |
|---|---|---|
| committer | zinc <zinc@downsta.ir>
| 2026-10-15 18:14:02 +0330 |
| commit | 4fb4dffa202bb7a09eb2c0c2784f28eb11137f04 (patch) | |
| tree | c02002028d9e96ae1edcaa530874c23faa50a6f3 /src/core | |
| parent | seed: regenerate after merging demo-fixes (image c079adab) (diff) | |
fix: bytes test read one byte past the fixed map into the heap
rt.MW is the end of the fixed map (PW) since the growing heap landed; the
heap starts right there, so ld16(addr_b(rt.MW)-1) read the heap's first
byte: 0 on the default map by luck, 0x40 on the small map (16384).
Probe the real byte-op bound instead: core answers syscall(9,10) with the
host reservation MW; micro ports, whose bound is their memory size, fall
back to syscall(9,0).
Diffstat (limited to 'src/core')
| -rw-r--r-- | src/core/core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/core/core.c b/src/core/core.c index 7d1b91e..d758cb6 100644 --- a/src/core/core.c +++ b/src/core/core.c @@ -382,6 +382,7 @@ static Cell hostcall(Cell op, Cell a, Cell b, Cell c) } if (a == 7 || a == 8) return stack_expand(a == 8, b, &cb_s, &cb_r); if (a == 9) return code_reserve(b); + if (a == 10) return MW; /* where byte loads and stores stop: the host reservation, not memory_words */ return -1; case 43: { /* clone an isolated execution context with a bidirectional channel */ #if !defined(_WIN32) && !defined(__wasm__) |