Halfword memory accesses

The compiler now knows the LDRH and STRH instructions and will use them if you specify "-cpu 4" (or later). If you do use "-cpu 4" (meaning StrongARM or later), also specify "-memaccess -L22-S22" if you want your software to be Risc PC-compatible. This is because the Risc PC memory system does not support halfword accesses, even though the StrongARM does. LDRSB does work on the Risc PC, and will be used if "-cpu 4" is specified regardless of the -memaccess setting.

The -memaccess option allows (or disallows) specific types of memory access; it is used to indicate capabilities of the memory system beyond the ARM core.
The current types are:
     L22 load of a halfword from a halfword-aligned address
     S22 store of a halfword to a halfword-aligned address
     L41 load of a (rotated) word from a byte-aligned address

By default, all three are enabled. In the -memaccess option, prefix with "+" to enable or "-" to disable, as in the example above.