asm_malbolge.c

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// SPDX-FileCopyrightText: 2014-2018 condret <condr3t@protonmail.com>
// SPDX-FileCopyrightText: 2014-2018 pancake <pancake@nopcode.org>
// SPDX-License-Identifier: LGPL-3.0-only
 
#include <rz_asm.h>
#include <rz_types.h>
#include <rz_lib.h>
#include <string.h>
 
static const char *mal_dis(ut64 c, const ut8 *buf, ut64 len) {
    if (len) {
        switch ((buf[0] + c) % 94) {
        case 4: return "jmp [d]";
        case 5: return "out a";
        case 23: return "in a";
        case 39: return "rotr [d], mov a, [d]";
        case 40: return "mov d, [d]";
        case 62: return "crz [d], a, mov a, [d]";
        case 81: return "end";
        default: return "nop";
        }
    }
    return NULL;
}
 
static int __disassemble(RzAsm *a, RzAsmOp *op, const ut8 *buf, int len) {
    const char *opstr = mal_dis(a->pc, buf, len);
    return op->size = opstr ? 1 : 0;
}
 
RzAsmPlugin rz_asm_plugin_malbolge = {
    .name = "malbolge",
    .desc = "Malbolge Ternary VM",
    .arch = "malbolge",
    .author = "condret",
    .license = "LGPL3",
    .bits = 32,
    .endian = RZ_SYS_ENDIAN_NONE,
    .disassemble = &__disassemble
};
 
#ifndef RZ_PLUGIN_INCORE
RZ_API RzLibStruct rizin_plugin = {
    .type = RZ_LIB_TYPE_ASM,
    .data = &rz_asm_plugin_malbolge,
    .version = RZ_VERSION
};
#endif