code wiki / _hdl_build / nx_rollback_exceed_gate.nx

nx_rollback_exceed_gate.nx

buildroot/runtime/_hdl_build/nx_rollback_exceed_gate.nx

3368 B54 linesdepth 2pulls 4 transitivereach 0 importersview sourcekind gate/prooftopic rollback
docsdependenciesstructsconstsfunctions

about

nx_rollback_exceed_gate.nx -- earns a measured EXCEEDS for rollback vs DELAY-BASED netcode (a real incumbent: GGPO-era "delay frames" / many online games). Axis = added LOCAL input latency. Delay-based waits net_delay frames before applying input; rollback applies local input the same frame (predict + resim). So at any net_delay>0 rollback EXCEEDS on responsiveness. Correctness is preserved (rollback resim recovers ground truth -- re-proven here). NEG-CONTROL: at net_delay=0 (LAN) both are 0 -> PARITY. license_tier: ORIGINAL expect_exit: 0

dependencies 3 imports · 0 importers

nx_syscalls.nx nx_lockstep.nx nx_rollback.nx nx_rollback_exceed_gate.nx

imports: nx_syscalls.nxnx_lockstep.nxnx_rollback.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 zero rb_advance ls_update rb_resim rb_copy rb_advance ↻ ls_checksum ew sys_write rb_delay_latency rb_rollback_latency rb_latency_verdict en sys_mmap ↻ sys_write ↻ sys_exit

structs

none

consts

none

functions

11func ew(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
12func en(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
13func zero(s: *i64, n: i64) -> i64 { var i: i64=0; while i<n { s[i]=0; i=i+1 } return 0 }
called by 1: main
15func main() -> i64
calls 11: sys_mmapzerorb_advancerb_resimls_checksumew+5