code wiki / _hdl_build / nx_shade_gate.nx

nx_shade_gate.nx

buildroot/runtime/_hdl_build/nx_shade_gate.nx

4015 B78 linesdepth 4pulls 5 transitivereach 0 importersview sourcekind gate/proof
docsdependenciesstructsconstsfunctions

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nx_shade_gate.nx -- proves P1 texture/gouraud. Renders a 96x48 image: LEFT = gouraud triangle with red/green/blue vertices (smooth RGB gradient); RIGHT = a triangle textured with an 8x8 yellow/purple checkerboard. Asserts: each gouraud vertex region is the right hue, the interior is a true blend, and the textured region contains BOTH checker colors. Writes knowledge/nx_shade.png for eyeball verify. license_tier: ORIGINAL expect_exit: 0

dependencies 3 imports · 0 importers

nx_syscalls.nx nx_shade.nx nx_png.nx nx_shade_gate.nx

imports: nx_syscalls.nxnx_shade.nxnx_png.nx

imported by: nobody (leaf or entry point)

call flow from main pre-order; caps 40 nodes / depth 6 declared; ↻ = already shown

main sys_mmap nxa_die sys_write sys_exit nxa_lock_take nxa_lock_addr sys_write ↻ nxa_lock_give nxa_lock_addr ↻ nxa_report_overrun sys_write ↻ nxa_dump_printable sys_write ↻ nxa_dump_sizes sys_write ↻ sh_clear sh_rgb sh_tri_gouraud sh_edge sh_r sh_g sh_b sh_rgb ↻ sh_tri_textured sh_edge ↻ write_png png_publish png_buf_cap sys_mmap_try write_png_buf png_buf_cap ↻ write_png_buf_checked png_buf_cap ↻ sys_mmap_try ↻ sys_munmap_direct png_g png_paeth png_sabs dfe_compress

structs

none

consts

none

functions

10func vw(s: *u8) -> i64 { var n: i64=0; while s[n]!=(0 as u8){n=n+1} sys_write(1,s,n); return 0 }
called by 1: main calls 1: sys_write
11func vn(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 as u8;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(1,bb,k); return 0 }
called by 1: main calls 2: sys_mmapsys_write
12func px(fb: *i64, w: i64, x: i64, y: i64) -> i64 { return fb[y*w + x] }
called by 1: main
14func main() -> i64