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nx_p256_comb_bench.nx

buildroot/runtime/nx_p256_comb_bench.nx

3263 B68 linesdepth 9pulls 11 transitivereach 0 importersview sourcekind benchtopic p256
docsdependenciesstructsconstsfunctions

about

nx_p256_comb_bench.nx -- does the fixed-base comb (p256_scalar_mul_base, precomputed G-table) beat generic double-and-add (p256_scalar_mul) enough to justify wiring it into the ECDSA verify's u1*G? Table built ONCE (amortized, as it would be cached live). Dependent-chain (DCE/hoist-proof). Correctness pre-check: comb == generic for the same scalar (the nx_p256_comb_test guarantee, re-run here on the bench scalars). expect_exit: 0 license_tier: ORIGINAL

dependencies 3 imports · 0 importers

nx_syscalls.nx nx_p256_comb.nx nx_p256_scalar_mul.nx nx_p256_comb_bench.nx

imports: nx_syscalls.nxnx_p256_comb.nxnx_p256_scalar_mul.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 p256_comb_build nx_scratch_save nx_scratch_init sys_mmap ↻ p256_point_alloc nx_scratch nx_scratch_init ↻ nx_scratch_oom sys_write sys_exit sys_mmap ↻ u256_alloc nx_scratch ↻ p256_field_one u256_one u256_zero p256_field_zero u256_zero ↻ p256_point_load_g p256_field_one ↻ p256_point_copy u256_copy p256_comb_store p256_point_add p256_point_is_infinity u256_is_zero p256_point_copy ↻ nx_scratch_save ↻ u256_alloc ↻ u256_copy ↻ p256_field_sq p256_field_mul nx_scratch_save ↻ u256_wide_alloc nx_scratch ↻ u256_mul_wide _p256_solinas_reduce u256_alloc ↻

structs

none

consts

9const N_MAGIC_1000000000: i64 = 1000000000
11const N_ITER: i64 = 2000

functions

13func bp(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
14func bn(v: i64) -> i64
called by 1: main calls 2: sys_mmapsys_write
20func now_ns(ts: *i64) -> i64 { __syscall(SYS_CLOCK_GETTIME, 1, ts as i64, 0, 0, 0, 0); return ts[0] * N_MAGIC_1000000000 + ts[1] }
called by 1: main
22func main() -> i64
calls 12: sys_mmapp256_comb_buildp256_point_allocp256_point_load_gu256_allocp256_scalar_mul_base+6