Next: CRIS-Symbols, Previous: CRIS-Opts, Up: CRIS-Dependent [Contents][Index]
as
will silently choose an instruction that fits the operand size for [register+constant] operands. For example, the offset 127
in move.d [r3+127],r4
fits in an instruction using a signed-byte offset. Similarly, move.d [r2+32767],r1
will generate an instruction using a 16-bit offset. For symbolic expressions and constants that do not fit in 16 bits including the sign bit, a 32-bit offset is generated.
For branches, as
will expand from a 16-bit branch instruction into a sequence of instructions that can reach a full 32-bit address. Since this does not correspond to a single instruction, such expansions can optionally be warned about. See CRIS-Opts.
If the operand is found to fit the range, a lapc
mnemonic will translate to a lapcq
instruction. Use lapc.d
to force the 32-bit lapc
instruction.
Similarly, the addo
mnemonic will translate to the shortest fitting instruction of addoq
, addo.w
and addo.d
, when used with a operand that is a constant known at assembly time.