On Dec 5, 2008, at 11:02 AM, Frieder Ferlemann wrote:
>> instructions. The 87C751 doesn't implement LCALL or LJMP (nor MOVX
>> for that matter) because it has only 2KB of on-chip code memory and
>> no external RAM capabilities. If memory serves, the offset width for
>> ACALL and AJMP is 11 bits, which should be enough to cover the entire
>> 2KB code space on this chip. So...can SDCC be told to only generate
>> ACALL instructions if the target address is within range?
>
> use option --acall-ajmp :^)
This seems to work as advertised; my code segment is 51 bytes
smaller and the lcall/ljmp instructions are now acalls and ajmps.
Thanks!!
-Dave
--
Dave McGuire
Port Charlotte, FL
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