code wiki / _hdl_build / nx_rv64_snapshot_gate.nx

nx_rv64_snapshot_gate.nx

buildroot/runtime/_hdl_build/nx_rv64_snapshot_gate.nx

6114 B122 linesdepth 5pulls 17 transitivereach 0 importersview sourcekind gate/prooftopic rv64
docsdependenciesstructsconstsfunctions

about

nx_rv64_snapshot_gate.nx -- prove DETERMINISTIC snapshot/restore (F107i). Runs a compute program to halt (reference hash A). Then on a second sim: run PARTWAY, snapshot, run to halt -> hash B (== A proves the snapshot is non-disturbing + the continuation is deterministic); RESTORE the snapshot, run to halt -> hash B2 (== A proves restore rewinds + continues byte-identically). Exact because the sim is bit-deterministic (no float) -- the sovereign determinism exceed bet. Self-checking. expect_exit:0

dependencies 11 imports · 0 importers

nx_syscalls.nx nishi_hdl_primitives.nx rv64im_min_decoder.nx rv64im_min_alu.nx rv64im_min_regfile.nx rv64im_min_csr.nx rv64im_min_clint.nx rv64im_min_uart.nx rv64im_min_virtio.nx rv64im_min_sim.nx nx_rv64_snapshot_gate.nx

diagram shows first 10 each side; +1 more imports, +0 more importers in the complete lists below.

imports: nx_syscalls.nxnishi_hdl_primitives.nxrv64im_min_decoder.nxrv64im_min_alu.nxrv64im_min_regfile.nxrv64im_min_csr.nxrv64im_min_clint.nxrv64im_min_uart.nxrv64im_min_virtio.nxrv64im_min_sim.nxnx_rv64_asm.nx

imported by: nobody (leaf or entry point)

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

main g_puts sys_write sys_mmap build_prog sys_mmap ↻ ra_put ra_i ra_b ra_u ra_s mk_sim sys_mmap ↻ nx_rv64im_rf_init nx_rv64im_csr_init nx_clint_init nx_uart_init nx_rv64im_sim_init nx_rv64im_sim_run nx_rv64im_sim_step nx_clint_tick nx_clint_update_mtip nx_rv64im_csr_tick_mcycle nx_clint_mtip_get nx_rv64im_csr_read nx_csr_addr_to_slot nx_rv64im_sim_take_trap nx_rv64im_csr_read ↻ nx_rv64im_csr_write nx_csr_addr_to_slot ↻ nx_csr_is_read_only nx_rv64im_xlate nx_rv64im_csr_read ↻ nx_rv64im_is_device sys_mmap ↻ nx_sv39_walk nx_mmu_inrange nx_mmu_rd64 nx_mmu_inrange ↻ nx_mmu_rd64 ↻

structs

none

consts

25const SN_MEMB: i64 = 0x80000000
26const SN_MEMS: i64 = 65536
27const SN_SCRATCH_OFF: i64 = 0x2000

functions

18func g_puts(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
19func g_ph(v: i64) -> i64
called by 1: main calls 2: sys_mmapsys_write
29func state_hash(rf: *NxRv64imRegfile, mem: *u8, memsz: i64) -> i64
called by 1: main calls 1: nx_rv64im_rf_read
42func rd64(mem: *u8, off: i64) -> i64 { var v: i64=0; var i: i64=0; while i<8 { v=v|((mem[off+i] as i64)<<(i*8)); i=i+1 } return v }
called by 1: main
44func build_prog(out: *u8) -> i64
called by 1: main calls 6: sys_mmapra_putra_ira_bra_ura_s
65func mk_sim(code: *u8, nb: i64, out_rf: *i64, out_mem: *i64) -> i64
called by 1: main calls 6: sys_mmapnx_rv64im_rf_initnx_rv64im_csr_initnx_clint_initnx_uart_initnx_rv64im_sim_init
80func main() -> i64
calls 12: g_putssys_mmapbuild_progmk_simnx_rv64im_sim_runstate_hash+6