Chapter 41. v850 Dependent Features

237

ctoff()

Computes the offset of the named variable from the start of the Call Table Area (whoes address

is helg in system register 20, the CTBP register) and stores the result a 6 or 16 bit unsigned value

in the immediate field of then given instruction or piece of data. For example:

callt ctoff(table_func1)

will put the call the function whoes address is held in the call table at the location labeled 'ta 

ble_func1'.

.longcall name

Indicates that the following sequence of instructions is a long call to function

name

. The linker

will attempt to shorten this call sequence if

name

is within a 22bit offset of the call. Only valid if

the

 mrelax

command line switch has been enabled.

.longjump name

Indicates that the following sequence of instructions is a long jump to label

name

. The linker will

attempt to shorten this code sequence if

name

is within a 22bit offset of the jump. Only valid if

the

 mrelax

command line switch has been enabled.

For information on the V850 instruction set, see [V850 Family 32 /16 Bit single Chip Microcontroller

Architecture Manual] from NEC. Ltd.