mirror of
https://github.com/yuzu-emu/unicorn
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177 lines
6.9 KiB
Java
Executable file
177 lines
6.9 KiB
Java
Executable file
/*
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Java bindings for the Unicorn Emulator Engine
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Copyright(c) 2015 Chris Eagle
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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version 2 as published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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/* Unicorn Emulator Engine */
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/* By Loi Anh Tuan, 2015 */
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/* Sample code to demonstrate how to emulate m68k code */
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import unicorn.*;
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public class Sample_m68k {
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// code to be emulated
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public static final byte[] M68K_CODE = {118,-19}; // movq #-19, %d3
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// memory address where emulation starts
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public static final int ADDRESS = 0x10000;
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public static final long toInt(byte val[]) {
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long res = 0;
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for (int i = 0; i < val.length; i++) {
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long v = val[i] & 0xff;
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res = res + (v << (i * 8));
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}
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return res;
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}
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public static final byte[] toBytes(long val) {
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byte[] res = new byte[8];
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for (int i = 0; i < 8; i++) {
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res[i] = (byte)(val & 0xff);
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val >>>= 8;
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}
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return res;
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}
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// callback for tracing basic blocks
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private static class MyBlockHook implements BlockHook {
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public void hook(Unicorn u, long address, int size, Object user_data) {
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System.out.print(String.format(">>> Tracing basic block at 0x%x, block size = 0x%x\n", address, size));
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}
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}
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// callback for tracing instruction
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private static class MyCodeHook implements CodeHook {
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public void hook(Unicorn u, long address, int size, Object user_data) {
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System.out.print(String.format(">>> Tracing instruction at 0x%x, instruction size = 0x%x\n", address, size));
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}
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}
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static void test_m68k()
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{
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byte[] d0 = toBytes(0x0000); // d0 data register
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byte[] d1 = toBytes(0x0000); // d1 data register
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byte[] d2 = toBytes(0x0000); // d2 data register
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byte[] d3 = toBytes(0x0000); // d3 data register
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byte[] d4 = toBytes(0x0000); // d4 data register
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byte[] d5 = toBytes(0x0000); // d5 data register
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byte[] d6 = toBytes(0x0000); // d6 data register
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byte[] d7 = toBytes(0x0000); // d7 data register
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byte[] a0 = toBytes(0x0000); // a0 address register
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byte[] a1 = toBytes(0x0000); // a1 address register
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byte[] a2 = toBytes(0x0000); // a2 address register
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byte[] a3 = toBytes(0x0000); // a3 address register
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byte[] a4 = toBytes(0x0000); // a4 address register
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byte[] a5 = toBytes(0x0000); // a5 address register
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byte[] a6 = toBytes(0x0000); // a6 address register
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byte[] a7 = toBytes(0x0000); // a6 address register
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byte[] pc = toBytes(0x0000); // program counter
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byte[] sr = toBytes(0x0000); // status register
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System.out.print("Emulate M68K code\n");
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// Initialize emulator in M68K mode
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Unicorn u = new Unicorn(Unicorn.UC_ARCH_M68K, Unicorn.UC_MODE_BIG_ENDIAN);
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// map 2MB memory for this emulation
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u.mem_map(ADDRESS, 2 * 1024 * 1024, Unicorn.UC_PROT_READ | Unicorn.UC_PROT_WRITE);
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// write machine code to be emulated to memory
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u.mem_write(ADDRESS, M68K_CODE);
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// initialize machine registers
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u.reg_write(Unicorn.UC_M68K_REG_D0, d0);
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u.reg_write(Unicorn.UC_M68K_REG_D1, d1);
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u.reg_write(Unicorn.UC_M68K_REG_D2, d2);
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u.reg_write(Unicorn.UC_M68K_REG_D3, d3);
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u.reg_write(Unicorn.UC_M68K_REG_D4, d4);
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u.reg_write(Unicorn.UC_M68K_REG_D5, d5);
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u.reg_write(Unicorn.UC_M68K_REG_D6, d6);
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u.reg_write(Unicorn.UC_M68K_REG_D7, d7);
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u.reg_write(Unicorn.UC_M68K_REG_A0, a0);
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u.reg_write(Unicorn.UC_M68K_REG_A1, a1);
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u.reg_write(Unicorn.UC_M68K_REG_A2, a2);
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u.reg_write(Unicorn.UC_M68K_REG_A3, a3);
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u.reg_write(Unicorn.UC_M68K_REG_A4, a4);
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u.reg_write(Unicorn.UC_M68K_REG_A5, a5);
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u.reg_write(Unicorn.UC_M68K_REG_A6, a6);
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u.reg_write(Unicorn.UC_M68K_REG_A7, a7);
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u.reg_write(Unicorn.UC_M68K_REG_PC, pc);
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u.reg_write(Unicorn.UC_M68K_REG_SR, sr);
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// tracing all basic blocks with customized callback
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u.hook_add(new MyBlockHook(), 1, 0, null);
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// tracing all instruction
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u.hook_add(new MyCodeHook(), 1, 0, null);
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// emulate machine code in infinite time (last param = 0), or when
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// finishing all the code.
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u.emu_start(ADDRESS, ADDRESS + M68K_CODE.length, 0, 0);
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// now print out some registers
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System.out.print(">>> Emulation done. Below is the CPU context\n");
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d0 = u.reg_read(Unicorn.UC_M68K_REG_D0, 4);
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d1 = u.reg_read(Unicorn.UC_M68K_REG_D1, 4);
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d2 = u.reg_read(Unicorn.UC_M68K_REG_D2, 4);
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d3 = u.reg_read(Unicorn.UC_M68K_REG_D3, 4);
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d4 = u.reg_read(Unicorn.UC_M68K_REG_D4, 4);
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d5 = u.reg_read(Unicorn.UC_M68K_REG_D5, 4);
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d6 = u.reg_read(Unicorn.UC_M68K_REG_D6, 4);
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d7 = u.reg_read(Unicorn.UC_M68K_REG_D7, 4);
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a0 = u.reg_read(Unicorn.UC_M68K_REG_A0, 4);
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a1 = u.reg_read(Unicorn.UC_M68K_REG_A1, 4);
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a2 = u.reg_read(Unicorn.UC_M68K_REG_A2, 4);
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a3 = u.reg_read(Unicorn.UC_M68K_REG_A3, 4);
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a4 = u.reg_read(Unicorn.UC_M68K_REG_A4, 4);
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a5 = u.reg_read(Unicorn.UC_M68K_REG_A5, 4);
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a6 = u.reg_read(Unicorn.UC_M68K_REG_A6, 4);
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a7 = u.reg_read(Unicorn.UC_M68K_REG_A7, 4);
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pc = u.reg_read(Unicorn.UC_M68K_REG_PC, 4);
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sr = u.reg_read(Unicorn.UC_M68K_REG_SR, 4);
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System.out.print(String.format(">>> A0 = 0x%x\t\t>>> D0 = 0x%x\n", toInt(a0), toInt(d0)));
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System.out.print(String.format(">>> A1 = 0x%x\t\t>>> D1 = 0x%x\n", toInt(a1), toInt(d1)));
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System.out.print(String.format(">>> A2 = 0x%x\t\t>>> D2 = 0x%x\n", toInt(a2), toInt(d2)));
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System.out.print(String.format(">>> A3 = 0x%x\t\t>>> D3 = 0x%x\n", toInt(a3), toInt(d3)));
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System.out.print(String.format(">>> A4 = 0x%x\t\t>>> D4 = 0x%x\n", toInt(a4), toInt(d4)));
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System.out.print(String.format(">>> A5 = 0x%x\t\t>>> D5 = 0x%x\n", toInt(a5), toInt(d5)));
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System.out.print(String.format(">>> A6 = 0x%x\t\t>>> D6 = 0x%x\n", toInt(a6), toInt(d6)));
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System.out.print(String.format(">>> A7 = 0x%x\t\t>>> D7 = 0x%x\n", toInt(a7), toInt(d7)));
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System.out.print(String.format(">>> PC = 0x%x\n", toInt(pc)));
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System.out.print(String.format(">>> SR = 0x%x\n", toInt(sr)));
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u.close();
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}
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public static void main(String args[])
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{
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test_m68k();
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}
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}
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