Some random writes to memory
2016-05-08 01:02:31,694 t_memory DEBUG Testing memory access ...
2016-05-08 01:02:32,324 t_memory DEBUG 0000h: 23 59 54 D9 76 DE CC 85 22 00 83 EB E9 25 90 00 #YTÙvÞÌ�".�ëé%�.
2016-05-08 01:02:32,324 t_memory DEBUG 0010h: 00 4C 97 51 22 B5 00 00 AA 86 90 F4 00 1F 00 00 .L�Q"µ..ª��ô.�..
2016-05-08 01:02:32,324 t_memory DEBUG 0020h: 8C B4 8C 1F D0 8B 43 00 ED 01 C4 13 00 59 00 57 �´��Ð�C.í�Ä�.Y.W
2016-05-08 01:02:32,324 t_memory DEBUG 0030h: 00 00 00 E1 00 85 E0 8A A4 00 00 B0 79 24 5A D5 ...á.�à�¤..°y$ZÕ
2016-05-08 01:02:32,324 t_memory DEBUG 0040h: BE 00 FE C1 A7 21 12 E9 00 00 60 00 90 1E E1 D0 ¾.þÁ§!�é..`.��áÐ
2016-05-08 01:02:32,325 t_memory DEBUG 0050h: 05 9C F1 A1 00 F0 E3 47 99 1D C3 2B FA 49 28 A2 ��ñ¡.ðãG��Ã+úI(¢
- allocating memory
- writing a string to the allocated block
- setting registers
- calling an interrupt to call sys_write()
- free memory
LOG.debug("Testing sys_write() ...")
core = Core()
msg = [ord(c) for c in "Hello!"]
msg.append(0x00)
addr = stdlib.malloc(len(msg))
length = len(msg)
core.set_memory_range(addr, msg)
core.EAX = 4 # sys_write
core.EBX = 2 # stderr
core.ECX = addr
core.EDX = length
core.interrupt(0x80) # handover to core
stdlib.free(addr)2016-05-08 01:02:32,605 t_memory DEBUG Testing sys_write() ...
2016-05-08 01:02:32,605 stdlib DEBUG Allocated 7 bytes at address 0027
2016-05-08 01:02:32,606 stdlib DEBUG Memory allocation table: {"0": 15, "16": 31, "32": 38, "39": 45, "48": 63, "64": 79, "80": 95, "96": 105}
2016-05-08 01:02:32,606 core DEBUG EAX is now 4
2016-05-08 01:02:32,606 core DEBUG EBX is now 2
2016-05-08 01:02:32,606 core DEBUG ECX is now 39
2016-05-08 01:02:32,606 core DEBUG EDX is now 7
2016-05-08 01:02:32,606 core DEBUG Printing to screen ...
2016-05-08 01:02:32,606 core ERROR Hello!
2016-05-08 01:02:32,606 stdlib DEBUG Freed 39 bytes at address 0027
2016-05-08 01:02:32,606 stdlib DEBUG Memory allocation table: {"0": 15, "16": 31, "32": 38, "48": 63, "64": 79, "80": 95, "96": 105}