Changes in 2.11:
+Support for Motorola 68HC11 and 68HC12.
+
Support for Texas Instruments TMS320C54x (tic54x).
Support for IA-64.
+Support for i860, by Jason Eckhardt.
+
+Support for CRIS (Axis Communications ETRAX series).
+
x86 gas has a new .arch pseudo op to specify the target CPU architecture.
x86 gas -q command line option quietens warnings about register size changes
Changes in 2.10:
+Support for the ARM msr instruction was changed to only allow an immediate
+operand when altering the flags field.
+
Support for ATMEL AVR.
Support for IBM 370 ELF. Somewhat experimental.