XCore Exchange

Posted: **Sat Sep 01, 2018 3:59 am**

What is the proper use of this instruction?

	ldc r11,0x0
	blat optable
	.section .cp.rodata, "ac", @progbits
optable:
	.short notmain

../src/pipe.s:28: Error: A00050 Instruction 'blat' does not allow a label as an immediate

Trying to build a jump table that jumps to the address in the table "optable" indexed by a register.....

Thanks!

Posted: **Mon Sep 03, 2018 4:13 pm**

As a possible workaround, can you try the following?

   ldc r11,0x0
   bla optable
   .section .cp.rodata, "ac", @progbits
optable:
   .short notmain

Does this work or raise an error? Be sure that the address is 16 bit aligned.

Posted: **Mon Sep 03, 2018 5:36 pm**

http://www.xcore.com/files/project_builds/isaflop.zip

Posted: **Wed Sep 05, 2018 1:26 am**

Excellent. Thanks for the examples. These will be very helpful.

use of blat instruction