Changes

There are 3 global index registers : idx1, idx2 and idx3 = lcnt (loop counter). For format 1 instructions, when IDX != 0, the value of the corresponding index is added to SRC1's value.

There are 3 global index registers : idx1, idx2 and idx3 = lcnt (loop counter). For format 1 instructions, when IDX != 0, the value of the corresponding index is added to SRC1's value.

For example, if IDX = 2, idx2 = 3 and SRC1 = c8, then instead SRC1+idx3 = c11 will be used for the instruction.

For example, if IDX = 2, idx2 = 3 and SRC1 = c8, then instead SRC1+idx2 = c11 will be used for the instruction.

idx1 and idx2 can be set manually through the SETINDEX instruction. lcnt is set automatically by the LOOP instruction. Note that lcnt is still accessible and valid after exiting a LOOP block.

idx1 and idx2 can be set manually through the SETINDEX instruction. lcnt is set automatically by the LOOP instruction. Note that lcnt is still accessible and valid after exiting a LOOP block.