code wiki / _hdl_build / nx_rv64_jit_mem_gate.nx

nx_rv64_jit_mem_gate.nx

buildroot/runtime/_hdl_build/nx_rv64_jit_mem_gate.nx

8800 B100 linesdepth 6pulls 8 transitivereach 0 importersview sourcekind gate/prooftopic rv64
docsdependenciesstructsconstsfunctions

about

nx_rv64_jit_mem_gate.nx -- GATE: the JIT now compiles GUEST MEMORY loads/stores (LW/LD/SW/SD) + the RAM-addressing shifts (SRLI/SRAI), against a baked-in biased guest-mem base ([rsi+rax], rsi = host_ptr-0x80000000). Proves a real memory round-trip (store -> load-back -> compute -> store) gives byte-identical guest memory + registers vs the golden interpreter. This is the capability that lets the JIT run REAL code (arrays/structs/stack), not just register math -- the biggest remaining gap. Honest limits: no bounds-check (interpreter has one; a JIT needs guard pages), no MMIO/finisher inside JIT'd blocks (those stay the interpreter's job). expect_exit:0

dependencies 4 imports · 0 importers

nx_syscalls.nx nx_rv64_asm.nx nx_rv64_fast.nx nx_rv64_jit.nx nx_rv64_jit_mem_gate.nx

imports: nx_syscalls.nxnx_rv64_asm.nxnx_rv64_fast.nxnx_rv64_jit.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 predec rvasm_assemble_str rvasm_assemble sys_mmap ↻ ra_isws ra_encode sys_mmap ↻ ra_afterword ra_isws ↻ ra_word_is ra_isws ↻ ra_reg ra_skipsep ra_num ra_imm ra_skipsep ↻ ra_ishex ra_hexval ra_isdig ra_u ra_imm12 ra_i ra_sh6 ra_r ra_past ra_s ra_label_target ra_skipsep ↻ ra_afterword ↻ ra_find_label ra_b ra_j ra_put fk_predecode fk_w32 fk_imm_u

structs

none

consts

16const MEMSZ: i64 = 65536
17const MEMBASE: i64 = 0x80000000

functions

12func 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 2: ckmain calls 1: sys_write
13func g_pn(v: i64) -> i64 { let b: *u8=sys_mmap(28); var x: i64=v; if x<0{b[0]=45;sys_write(1,b,1);x=0-x} if x==0{b[0]=48;sys_write(1,b,1);return 0} var d: i64=0; var y: i64=x; while y>0{d=d+1;y=y/10} var i: i64=d-1; y=x; while i>=0{b[i]=(48+(y%10)) as u8;y=y/10;i=i-1} sys_write(1,b,d); return 0 }
called by 1: main calls 2: sys_mmapsys_write
14func ck(name: *u8, c: i64) -> i64 { if c==1 { g_puts(" PASS " as *u8) } else { g_puts(" FAIL " as *u8) } g_puts(name); g_puts("\n" as *u8); return c }
called by 1: main calls 1: g_puts
19func predec(src: *u8, code: *u8, opk: *i64, rd: *i64, rs1: *i64, rs2: *i64, imm: *i64) -> i64
called by 1: main calls 2: rvasm_assemble_strfk_predecode
23func run_jit_mem(opk: *i64, rd: *i64, rs1: *i64, rs2: *i64, imm: *i64, nc: i64, reg: *i64, mem: *u8) -> i64
called by 1: main calls 4: sys_mmapjit_set_membasejit_compilejit_run
31func run_interp_mem(opk: *i64, rd: *i64, rs1: *i64, rs2: *i64, imm: *i64, nc: i64, reg: *i64, mem: *u8) -> i64
called by 1: main calls 1: fk_run
36func main() -> i64
calls 16: g_putssys_mmappredecrun_jit_memrun_interp_memfk_ld+10