sample for m68k added

bindings/ruby/sample_m68k.rb

@@ -0,0 +1,65 @@
+#!/usr/bin/env ruby
+# Sample code for ARM of Unicorn. Nguyen Anh Quynh <aquynh@gmail.com>
+# Ruby sample ported by Sascha Schirra <sashs82@gmail.com>
+
+require 'unicorn'
+require 'unicorn/m68k_const'
+
+include Unicorn
+
+# code to be emulated
+M68K_CODE  = "\x76\xed" # movq #-19, %d3
+# memory address where emulation starts
+ADDRESS    = 0x10000
+
+
+# callback for tracing basic blocks
+$hook_block = Proc.new do |uc, address, size, user_data|
+    puts(">>> Tracing basic block at 0x%x, block size = 0x%x" % [address, size])
+end
+
+
+# callback for tracing instructions
+$hook_code = Proc.new do |uc, address, size, user_data|
+    puts(">>> Tracing instruction at 0x%x, instruction size = %u" % [address, size])
+end
+
+
+# Test m68k
+def test_m68k()
+    puts("Emulate M68K code")
+    begin
+        # Initialize emulator in m68k mode
+        mu = Uc.new UC_ARCH_M68K, UC_MODE_BIG_ENDIAN
+
+        # map 2MB memory for this emulation
+        mu.mem_map(ADDRESS, 2 * 1024 * 1024)
+
+        # write machine code to be emulated to memory
+        mu.mem_write(ADDRESS, M68K_CODE)
+
+        # initialize machine registers
+        mu.reg_write(UC_M68K_REG_D3, 0x1234)
+
+        # tracing all basic blocks with customized callback
+        mu.hook_add(UC_HOOK_BLOCK, $hook_block)
+
+        # tracing all instructions with customized callback
+        mu.hook_add(UC_HOOK_CODE, $hook_code)
+
+        # emulate machine code in infinite time
+        mu.emu_start(ADDRESS, ADDRESS + M68K_CODE.bytesize)
+
+        # now print out some registers
+        puts(">>> Emulation done. Below is the CPU context")
+
+        d3 = mu.reg_read(UC_M68K_REG_D3)
+        puts(">>> D3 = 0x%x" % d3)
+
+    rescue UcError => e
+        puts("ERROR: %s" % e)
+    end
+end
+
+
+test_m68k()