nx_emu_mips64.nx
buildroot/runtime/nx_emu_mips64.nx
about
nx_emu_mips64.nx -- sovereign MIPS64 (n64, big-endian) interpreter (NX-EMU).
Flat 32 GPRs (r0==zero), BIG-ENDIAN, DELAY SLOTS (PC/nPC model like SPARC).
Decode/execute pure NishiLang per the MIPS64 ISA -- NO qemu (qemu-mips64 =
differential BENCHMARK that must agree). Resolves the earlier "inconclusive"
run-proof (that was a qemu-harness ABI artifact; here Nishi carries it).
Forms: R-type opcode0 (funct): OR 0x25 / DADDU 0x2d / DSUBU 0x2f / AND 0x24 /
XOR 0x26 / DMUL(R6) funct 0x1c sa 2 / JR 0x08 / JALR 0x09 / SLL 0x00 (nop) /
SYSCALL 0x0c / DSLL 0x38 / DSRL 0x3a / DSRA 0x3b. I-type: ADDIU 0x09 /
DADDIU 0x19 / ORI 0x0d / LUI 0x0f / LD 0x37 / SD 0x3f. J-type: J 0x02 /
JAL 0x03 (link r31=pc+8). n64 syscalls v0=num,a0..=args: exit=5058.
license_tier: ORIGINAL
dependencies 1 imports · 1 importers
imports: nx_syscalls_x86_64.nx
imported by: nx_emu_mips64_main.nx
structs
| none |
consts
| 16 | const MI_MAGIC_200000000: i64 = 200000000 |
| 18 | const MI_GUEST_SIZE: i64 = 16777216 |
| 19 | const MI_SYS_READ: i64 = 5000 |
| 20 | const MI_SYS_WRITE: i64 = 5001 |
| 21 | const MI_SYS_EXIT: i64 = 5058 |
| 22 | const MI_SYS_EXITG: i64 = 5205 |
| 23 | const MIE_UNSUPPORTED: i64 = -1 |
| 24 | const MIE_FAULT: i64 = -3 |
functions
| 26 | func mi_g_ld(mem: *u8, va: i64, width: i64) -> i64 { // big-endian |
| 32 | func mi_g_st(mem: *u8, va: i64, width: i64, val: i64) -> i64 called by 1: emu_mips64_run_mem |
| 37 | func mi_sx16(x: i64) -> i64 { if (x & 0x8000) != 0 { return x - 0x10000 } return x } called by 1: emu_mips64_run_mem |
| 38 | func mi_rd(r: *i64, n: i64) -> i64 { if n == 0 { return 0 } return r[n] } called by 1: emu_mips64_run_mem |
| 39 | func mi_wr(r: *i64, n: i64, v: i64) -> i64 { if n != 0 { r[n] = v } return 0 } called by 1: emu_mips64_run_mem |
| 41 | func emu_mips64_run_mem(mem: *u8, mem_size: i64, entry: i64, sp0: i64) -> i64 |
| 106 | func emu_mips64_load_elf(buf: *u8, len: i64) -> i64 |