Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

The problem of custom instruction

I want to define instruction of multiplication,but there is a problem that I cann't solve. the code is: library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_unsigned.all; ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

I am sorrow,I use the code that you give me to implement CRC custom instruction,but there is a same problem that I cann't solve.

I did all step by step follow the PDF,but when I select the CRC from the library on the life side panel of the Custrom Instruction tab,and click the ADD to add it to the Nios Processor,the error appears.

thank you.

http://b31.photo.store.qq.com/http_imgload.cgi?/rurl4_b=b579f8b54f494fc69149a5de70a1aee9158b4942fcdec056a28ce16f00afb29d8e64c3094609d5fcf27982de47cf11496e9e2e7eb30094ad8a1a95eb1f5db610f2e13eb99eb611d43f6b679363d86885849605cb&a=32&b=31