code wiki / _hdl_build / _f64_probe.nx
_f64_probe.nx
buildroot/runtime/_hdl_build/_f64_probe.nx
about
_f64_probe.nx -- compiler-behavior probe BEFORE authoring nx_f64 (verify-runtime-not-docs law).
Probes the exact primitives the f64 core depends on:
P1 64-bit hex literal with bit 63 set (0xFFF0000000000000 = -inf bit pattern = i64 -4503599627370496)
P2 1 << 63 (sign-bit construction)
P3 arithmetic >> on a negative raw, masked (exp-field unpack idiom)
P4 26/27-bit split multiply partials (the 106-bit product decomposition)
P5 (1 << 53) - 1 mask construction
Judge by printed markers, never $?.
dependencies 1 imports · 0 importers
imports: nx_syscalls.nx
imported by: nobody (leaf or entry point)
call flow from main pre-order; caps 40 nodes / depth 6 declared; ↻ = already shown
structs
| none |
consts
| none |
functions
| 11 | func f6p_puts(s: *u8) -> i64 { var n: i64 = 0; while s[n] != (0 as u8) { n = n + 1 } sys_write(1, s, n); return 0 } |
| 12 | func f6p_putn(v: i64) -> i64 { let bb: *u8 = sys_mmap(28); var m: i64 = v; if m < 0 { m = 0 - m; sys_write(1, "-" as *u8, 1) }; let t: *u8 = sys_mmap(28); var k: i64 = 0; if m == 0 { t[0] = 48; k = 1 }; while m > 0 { t[k] = 48 + (m % 10); m = m / 10; k = k + 1 }; var i: i64 = 0; while i < k { bb[i] = t[k-1-i]; i = i + 1 }; sys_write(1, bb, k); return 0 } |
| 13 | func f6p_line(tag: *u8, v: i64) -> i64 { f6p_puts(tag); f6p_putn(v); f6p_puts("\n" as *u8); return 0 } |
| 15 | func main() -> i64 |