code wiki / _hdl_build / nx_geo_segint_gate.nx
nx_geo_segint_gate.nx
buildroot/runtime/_hdl_build/nx_geo_segint_gate.nx
about
nx_geo_segint_gate.nx -- GATE for GEO-015b segment-segment intersection. Covers all 4 cases:
proper : (0,0)-(4e6,4e6) X (0,4e6)-(4e6,0) -> code 1, point (2e6,2e6)
touch : (0,0)-(4e6,0) X (4e6,0)-(4e6,4e6) -> code 2, point (4e6,0) [shared endpoint]
parallel : (0,0)-(4e6,0) X (0,1e6)-(4e6,1e6) -> code 0 (disjoint)
collinear: (0,0)-(4e6,0) X (2e6,0)-(6e6,0) -> code 3
outside : (0,0)-(1e6,1e6) X (0,4e6)-(1e6,3e6) -> code 0 (lines meet beyond both segments)
Evidence -> knowledge/status/geo_segint.log (GEOSEGINTGATE authored=organ ... verdict=GREEN).
license_tier: ORIGINAL
dependencies 2 imports · 0 importers
imports: nx_geo_segint.nxnx_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
| 13 | const GS_LOG: *u8 = "knowledge/status/geo_segint.log" |
functions
| 15 | func gs_w(fd: i64, s: *u8) -> i64 { var n: i64 = 0; while s[n] != (0 as u8) { n = n + 1 } sys_write(fd, s, n); return 0 } |
| 16 | func gs_wn(fd: i64, v: i64) -> i64 { let bb: *u8 = sys_mmap(28); var m: i64=v; if m<0 {m=0-m; sys_write(fd,"-" 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)) as u8; m=m/10; k=k+1}; var i: i64=0; while i<k {bb[i]=t[k-1-i]; i=i+1}; sys_write(fd, bb, k); return 0 } |
| 18 | func gs_emit(fd: i64, c1: i64, px: i64, py: i64, c2: i64, tx: i64, ty: i64, c3: i64, c4: i64, c5: i64, ok: i64) -> i64 |
| 30 | func main() -> i64 |