53bf5c497f
- Add LICENSES directory - Download additional licenses used - Add .reuse directory - Add doc about SPDX/reuse Co-authored-by: Florian Märkl <info@florianmaerkl.de>
101 lines
2.1 KiB
C
101 lines
2.1 KiB
C
// SPDX-FileCopyrightText: 2014 pancake <pancake@nopcode.org>
|
|
// SPDX-License-Identifier: LGPL-3.0-only
|
|
|
|
#include <string.h>
|
|
#include <rz_types.h>
|
|
#include <rz_lib.h>
|
|
#include <rz_asm.h>
|
|
#include <rz_analysis.h>
|
|
|
|
static int nios2_op(RzAnalysis *analysis, RzAnalysisOp *op, ut64 addr, const ut8 *b, int len, RzAnalysisOpMask mask) {
|
|
if (!op) {
|
|
return 1;
|
|
}
|
|
op->size = 4;
|
|
|
|
if ((b[0] & 0xff) == 0x3a) {
|
|
// XXX
|
|
op->type = RZ_ANALYSIS_OP_TYPE_RET;
|
|
} else if ((b[0] & 0xf) == 0xa) {
|
|
op->type = RZ_ANALYSIS_OP_TYPE_JMP;
|
|
} else if ((b[0] & 0xf) == 4) {
|
|
op->type = RZ_ANALYSIS_OP_TYPE_ADD;
|
|
} else if ((b[0] & 0xf) == 5) {
|
|
op->type = RZ_ANALYSIS_OP_TYPE_STORE;
|
|
} else if ((b[0] & 0xf) == 6) {
|
|
// blt, r19, r5, 0x8023480
|
|
op->type = RZ_ANALYSIS_OP_TYPE_CJMP;
|
|
// TODO: address
|
|
} else if ((b[0] & 0xf) == 7) {
|
|
// blt, r19, r5, 0x8023480
|
|
op->type = RZ_ANALYSIS_OP_TYPE_LOAD;
|
|
// TODO: address
|
|
} else {
|
|
switch (b[0]) {
|
|
case 0x3a:
|
|
if (b[1] >= 0xa0 && b[1] <= 0xaf && b[3] == 0x3d) {
|
|
op->type = RZ_ANALYSIS_OP_TYPE_TRAP;
|
|
} else if ((b[1] >= 0xe0 && b[1] <= 0xe7) && b[2] == 0x3e && !b[3]) {
|
|
// nextpc ra
|
|
op->type = RZ_ANALYSIS_OP_TYPE_RET;
|
|
}
|
|
break;
|
|
case 0x01:
|
|
// jmpi
|
|
op->type = RZ_ANALYSIS_OP_TYPE_JMP;
|
|
break;
|
|
case 0x00:
|
|
case 0x20:
|
|
case 0x40:
|
|
case 0x80:
|
|
case 0xc0:
|
|
//
|
|
op->type = RZ_ANALYSIS_OP_TYPE_CALL;
|
|
break;
|
|
case 0x26:
|
|
// beq
|
|
break;
|
|
case 0x07:
|
|
case 0x47:
|
|
case 0x87:
|
|
case 0xc7:
|
|
// ldb
|
|
op->type = RZ_ANALYSIS_OP_TYPE_LOAD;
|
|
break;
|
|
case 0x0d:
|
|
case 0x2d:
|
|
case 0x4d:
|
|
case 0x8d:
|
|
case 0xcd:
|
|
// sth && sthio
|
|
op->type = RZ_ANALYSIS_OP_TYPE_LOAD;
|
|
break;
|
|
case 0x06:
|
|
case 0x46:
|
|
case 0x86:
|
|
case 0xc6:
|
|
// br
|
|
op->type = RZ_ANALYSIS_OP_TYPE_CALL;
|
|
break;
|
|
}
|
|
}
|
|
return op->size;
|
|
}
|
|
|
|
RzAnalysisPlugin rz_analysis_plugin_nios2 = {
|
|
.name = "nios2",
|
|
.desc = "NIOS II code analysis plugin",
|
|
.license = "LGPL3",
|
|
.arch = "nios2",
|
|
.esil = false,
|
|
.bits = 32,
|
|
.op = &nios2_op,
|
|
};
|
|
|
|
#ifndef RZ_PLUGIN_INCORE
|
|
RZ_API RzLibStruct rizin_plugin = {
|
|
.type = RZ_LIB_TYPE_ANALYSIS,
|
|
.data = &rz_analysis_plugin_nios2,
|
|
.version = RZ_VERSION
|
|
};
|
|
#endif
|