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AR# 24754

9.1i EDK, microblaze_v5_00_c - When setting optimization level to "0", MicroBlaze does not jump to interrupt handler

Description

When setting optimization to no optimization, MicroBlaze does not jump to the interrupt handler. MicroBlaze does jump to the interrupt handler when setting optimization to 2. MicroBlaze v4.0 does not experience this problem.

Solution

This bug has been fixed for MicroBlaze v6.00.a, available in EDK 9.1i.  

http://www.xilinx.com/xlnx/xil_sw_updates_home.jsp
 

This problem was caused by invalid instructions in EX that erroneously affected interrupt handling.

AR# 24754
Date Created 09/04/2007
Last Updated 05/21/2014
Status Archive
Type General Article