------- Additional Comments From chris at seberino dot org 2009-06-22 19:43
-------
The undefined fix is very nice. I did find some issues and have appended a
Python script to reproduce...
#==========The Python script============================================
import struct
raw_binary = open("raw_binary", "w")
raw_binary.write(struct.pack("L", 0x4c585ee5))
raw_binary.write(struct.pack("L", 0x01a23597))
raw_binary.write(struct.pack("L", 0x3d9da24e))
#==========The Python script output=====================================
% objdump -D --target=binary -m arm7tdmi raw_binary
raw_binary: file format binary
Disassembly of section .data:
00000000 <.data>:
0: 4c585ee5 mrrcmi 14, 14, r5, r8, cr5
4: 01a23597 strbeq r3, [r2, r7]!
8: 3d9da24e lfmcc f2, 1, [sp, #312]
#==================Comments======================================
1. mrrcmi is an extended DSP instruction that doesn't belong on ARM7TDMI right?
2. According to my ARM ref manual, strb needs to have bits 4-11 zeroed out which
01a23597 doesn't. Should this be undefined instead?
3. I can't find lfm in my ARM ref manual. Googling reveal it to be a floating
point multiple load instruction. This may be right but I'm not sure since it
isn't documented in ARM book I have.
cs
--
http://sourceware.org/bugzilla/show_bug.cgi?id=10288
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