99 lines
1.9 KiB
C
99 lines
1.9 KiB
C
// SPDX-FileCopyrightText: 2015 pancake <pancake@nopcode.org>
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// SPDX-License-Identifier: LGPL-3.0-only
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#include <string.h>
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#include <rz_types.h>
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#include <rz_util.h>
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#include <rz_lib.h>
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#include <rz_asm.h>
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#include <rz_analysis.h>
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// XXX: this is just a PoC
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// XXX: do not hardcode size/type here, use proper decoding table
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// http://hotkosc.ru:8080/method-vax.doc
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static int vax_op(RzAnalysis *analysis, RzAnalysisOp *op, ut64 addr, const ut8 *buf, int len, RzAnalysisOpMask mask) {
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op->size = 1;
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if (len < 1) {
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return -1;
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}
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op->type = RZ_ANALYSIS_OP_TYPE_UNK;
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switch (buf[0]) {
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case 0xd0:
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case 0x2e:
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op->type = RZ_ANALYSIS_OP_TYPE_MOV;
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op->size = 8;
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break;
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case 0x78:
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op->type = RZ_ANALYSIS_OP_TYPE_SHL;
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op->size = 8;
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break;
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case 0xc0:
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case 0xd8:
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op->type = RZ_ANALYSIS_OP_TYPE_ADD;
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op->size = 8;
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break;
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case 0x00:
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op->type = RZ_ANALYSIS_OP_TYPE_TRAP; // HALT
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break;
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case 0x01:
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op->type = RZ_ANALYSIS_OP_TYPE_NOP;
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break;
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case 0x51:
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case 0x73:
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op->type = RZ_ANALYSIS_OP_TYPE_CMP;
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break;
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case 0xac:
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op->type = RZ_ANALYSIS_OP_TYPE_XOR;
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op->size = 4;
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break;
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case 0x5a:
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op->size = 2;
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break;
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case 0x11:
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case 0x18:
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op->size = 2;
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op->type = RZ_ANALYSIS_OP_TYPE_CJMP;
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break;
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case 0x31:
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case 0xe9:
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op->size = 3;
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op->type = RZ_ANALYSIS_OP_TYPE_CJMP;
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break;
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case 0xc6:
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case 0xc7:
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op->size = 8;
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op->type = RZ_ANALYSIS_OP_TYPE_DIV;
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break;
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case 0xd6:
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case 0x61:
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op->size = 2;
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op->type = RZ_ANALYSIS_OP_TYPE_ADD;
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break;
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case 0x62:
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op->type = RZ_ANALYSIS_OP_TYPE_SUB;
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break;
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case 0xff:
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op->size = 2;
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break;
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}
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return op->size;
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}
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RzAnalysisPlugin rz_analysis_plugin_vax = {
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.name = "vax",
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.desc = "VAX code analysis plugin",
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.license = "LGPL3",
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.arch = "vax",
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.esil = false,
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.bits = 8 | 32,
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.op = &vax_op,
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};
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#ifndef RZ_PLUGIN_INCORE
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RZ_API RzLibStruct rizin_plugin = {
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.type = RZ_LIB_TYPE_ANALYSIS,
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.data = &rz_analysis_plugin_vax,
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.version = RZ_VERSION
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};
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#endif
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