Method ShimFunction

LiveRecomp/live_generator.cpp:1955–1974

}

N64Recomp::ShimFunction::ShimFunction(recomp_func_ext_t* to_shim, uintptr_t value) {
    sljit_compiler* compiler = sljit_create_compiler(nullptr);

    // Create the function.
    sljit_label* func_label = sljit_emit_label(compiler);
    sljit_emit_enter(compiler, 0, SLJIT_ARGS2V(P_R, P_R), 3, 0, 0);

    // Move the provided value into the third argument.
    sljit_emit_op1(compiler, SLJIT_MOV, SLJIT_R2, 0, SLJIT_IMM, sljit_sw(value));

    // Tail call the provided function.
    sljit_emit_icall(compiler, SLJIT_CALL | SLJIT_CALL_RETURN, SLJIT_ARGS3V(P, P, W), SLJIT_IMM, sljit_sw(to_shim));

    // Generate the function's code and get the address to the function.
    code = sljit_generate_code(compiler, 0, nullptr);
    func = reinterpret_cast<recomp_func_t*>(sljit_get_label_addr(func_label));

    // Cleanup.
    sljit_free_compiler(compiler);
}

N64Recomp::ShimFunction::~ShimFunction() {
    sljit_free_code(code, nullptr);