code wiki / _hdl_build / nx_emu_x86_mem_test.nx
nx_emu_x86_mem_test.nx
buildroot/runtime/_hdl_build/nx_emu_x86_mem_test.nx
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nx_emu_x86_mem_test.nx -- x86 full-system ladder R3: MEMORY. Extends the R2 control-flow interp
with a RAM region + 64-bit load/store via ModRM mod=00 base-register indirect:
48 89 /r (mod=00) -> mov [base], r64 (store)
48 8B /r (mod=00) -> mov r64, [base] (load)
(mod=11 stays register-register as before.) KAT: store 42 to RAM, clobber the reg, load it back,
exit = the loaded value. HONEST SCOPE: base-register indirect only (no SIB/disp yet); modes
(R5)/devices (R7)/boot (R8+) later. No hardware writes (Rule 26). expect_exit: 0 license_tier: ORIGINAL
dependencies 1 imports · 0 importers
imports: nx_syscalls_x86_64.nx
imported by: nobody (leaf or entry point)
call flow from main pre-order; caps 40 nodes / depth 6 declared; ↻ = already shown
structs
| none |
consts
| none |
functions
| 10 | func mb_put_b(c: *u8, o: i64, b: i64) -> i64 { c[o]=(b & 0xff) as u8; return o+1 } called by 1: main |
| 11 | func mb_put_i32(c: *u8, o: i64, v: i64) -> i64 { c[o]=(v&0xff) as u8; c[o+1]=((v>>8)&0xff) as u8; c[o+2]=((v>>16)&0xff) as u8; c[o+3]=((v>>24)&0xff) as u8; return o+4 } called by 1: main |
| 12 | func mb_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 |
| 13 | func mb_num(v: i64) -> i64 { let b: *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{b[i]=t[k-1-i];i=i+1} sys_write(1,b,k); return 0 } called by 1: main |
| 15 | func mb_i32(code: *u8, off: i64) -> i64 called by 1: emu_x86_run_mem |
| 20 | func mb_st64(mem: *u8, addr: i64, v: i64) -> i64 { var i: i64=0; while i<8 { mem[addr+i]=((v>>(i*8)) & 0xff) as u8; i=i+1 } return 0 } called by 1: emu_x86_run_mem |
| 21 | func mb_ld64(mem: *u8, addr: i64) -> i64 { var v: i64=0; var i: i64=0; while i<8 { v = v | ((mem[addr+i] as i64) << (i*8)); i=i+1 } return v } called by 1: emu_x86_run_mem |
| 23 | func emu_x86_run_mem(code: *u8, len: i64, mem: *u8) -> i64 |
| 56 | func main() -> i64 |