diff --git a/twain/Makefile b/twain/Makefile
index a87588b..1b2b48b 100644
--- a/twain/Makefile
+++ b/twain/Makefile
@@ -8,7 +8,7 @@ COPS2 = -Wall -O3 -nostdlib -nostartfiles -ffreestanding
 COPS3 = -Wall -O2 -nostdlib -nostartfiles -ffreestanding -mcpu=arm1176jzf-s 
 COPS4 = -Wall -O2 -nostdlib -nostartfiles -ffreestanding -mcpu=arm1176jzf-s -mtune=arm1176jzf-s
 COPS5 = -Wall -O3 -nostdlib -nostartfiles -ffreestanding -mcpu=arm1176jzf-s -mtune=arm1176jzf-s
-COPS = $(COPS5)
+COPS = $(COPS4)
 
 gcc : twain.gcc.hex twain.gcc.bin
 
@@ -88,7 +88,8 @@ ZBCSDEF = compress.bc deflate.bc trees.bc
 ZBCS = uncompr.bc inflate.bc crc32.bc adler32.bc inffast.bc inftrees.bc zutil.bc $(ZBCSDEF)
 
 
-LOPS = -Wall -m32 -emit-llvm -ccc-host-triple $(ARMGNU) 
+#LOPS = -Wall -m32 -emit-llvm -ccc-host-triple $(ARMGNU) 
+LOPS = -Wall -m32 -emit-llvm -target $(ARMGNU) 
 LLCOPS0 = -march=arm -mtriple=$(ARMGNU)
 LLCOPS1 = -march=arm -mtriple=$(ARMGNU) -mcpu=arm1176jzf-s
 LLCOPS = $(LLCOPS1)
diff --git a/twain/README b/twain/README
index d4236d1..ecf41df 100644
--- a/twain/README
+++ b/twain/README
@@ -153,6 +153,48 @@ COPS3  yes yes yes  0x17F0C8
 COPS4  yes yes yes  0x17FB53
 COPS5  yes yes yes  0x15B55E
 
+
+arm-none-eabi-gcc (GCC) 4.8.1
+Copyright (C) 2013 Free Software Foundation, Inc.
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+COPS0  no no no     0xD48A9F
+COPS1  no no no     0xB994DC
+COPS2  no no no     memset
+COPS3  no no no     0xC4CEBC
+COPS4  no no no     0xC4D880
+COPS5  no no no     memset
+
+COPS0  yes no no    0x9D6225
+COPS1  yes no no    0x90D014
+COPS2  yes no no    memset
+COPS3  yes no no    0x921680
+COPS4  yes no no    0x920FF1
+COPS5  yes no no    memset
+
+COPS3  yes yes no   0x194A48
+COPS4  yes yes no   0x19379E
+COPS5  yes yes no   memset
+
+COPS3  yes yes yes  0x1948C2
+COPS4  yes yes yes  0x19409E
+COPS5  yes yes yes  memset
+
+memset means:
+
+twain.o: In function `xmemset':
+twain.c:(.text+0x1dc): undefined reference to `memset'
+twain.o: In function `xcalloc':
+twain.c:(.text+0x23c): undefined reference to `memset'
+trees.o: In function `build_tree':
+trees.c:(.text+0x1028): undefined reference to `memset'
+make: *** [twain.gcc.elf] Error 1
+
+dont want to deal with that right now.
+
+
+
 Some things to talk about at this point...First off I was using jtag
 to load and run these programs.  Think about this for a second when
 you have the instruction cache on and the data cache off.  If you stop
@@ -318,6 +360,26 @@ LLCOPS1 yes no no   0xAB97C6
 LLCOPS0 yes yes no  0x1A49FE
 LLCOPS1 yes yes no  0x19F911
 
+
+clang version 3.3 (branches/release_33 189603)
+Target: x86_64-unknown-linux-gnu
+Thread model: posix
+
+
+LLCOPS0 no no no    0xE6EF36
+LLCOPS1 no no no    0xF550AC
+
+LLCOPS0 yes no no   0xAC25D7
+LLCOPS1 yes no no   0xAC2B1C
+
+LLCOPS0 yes yes no  0x1CA6C5
+LLCOPS1 yes yes no  0x1C4F53
+
+LLCOPS0 yes yes yes 0x1CA16C
+LLCOPS1 yes yes yes 0x1C5B56
+
+
+
 A simple experiment to show the mmu overhead.  Changing the code from this
 
     if(add_one(0x00000000,0x0000|8|4)) return(1);