Hello all, I just want to know about the feasibility of implementing an instruction for a port in gcc 4.4 The target has 40 bit register where the normal load/store/move instructions will be able to access the 32 bits of the register. In order to move data into the rest of the register [b32 to b39] the data has to be stored into a 32bit memory location. The data should be stored in such a way that if it is stored for 0-7 in memory the data can be moved to b32-b39 of a even register and if the data in the memory is stored in 16-23 of the memory word then it can be moved to b32-b39 of a odd register. Hope i make myself clear.
Will it be possible to implement this in the gcc back-end so that the particular instruction is supported? Regards, Shafi
