20 lines
527 B
Plaintext
20 lines
527 B
Plaintext
local ffi = require "pluto:ffi"
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local lib = ffi.open("./mclib.so")
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lib:cdef[[
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unsigned char run_machine_code(const char *code, unsigned char a, unsigned char b, int len);
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]]
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local a = 7
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local b = 12
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-- x64 opcodes for this task
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local m = {
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0x55, 0x48, 0x89, 0xe5, 0x89, 0x7d,
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0xfc, 0x89, 0x75, 0xf8, 0x8b, 0x75,
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0xfc, 0x03, 0x75, 0xf8, 0x89, 0x75,
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0xf4, 0x8b, 0x45, 0xf4, 0x5d, 0xc3
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}
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local code = m:mapped(|byte| -> string.char(byte)):concat("")
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print($"{a} + {b} = {lib.run_machine_code(code, a, b, #m)}")
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