URL
https://opencores.org/ocsvn/ion/ion/trunk
Subversion Repositories ion
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- This comparison shows the changes necessary to convert path
/ion
- from Rev 158 to Rev 159
- ↔ Reverse comparison
Rev 158 → Rev 159
/trunk/vhdl/mips_cpu.vhdl
14,9 → 14,8
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--### MIPS-I things not implemented |
-- |
-- 1.- RTE instruction (or ERET) missing, with CP0.SR KUo/IEo & KUP/IEp flags. |
-- 2.- Most of the R3000 CP0 registers and of course all of the CP1. |
-- 3.- External interrupts missing, with CP0.SR IR, NMI and IM7..0 flags. |
-- 1.- Most of the R3000 CP0 registers and of course all of the CP1. |
-- 2.- External interrupts missing, with CP0.SR IR, NMI and IM7..0 flags. |
-- |
--### Things with provisional implementation |
-- |
36,6 → 35,12
-- Besides, see point 2 above about the missing SR bits. |
-- |
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-- KNOWN BUGS: |
-- |
-- 1.- The instruction after entering user mode (i.e. the instruction after the |
-- MTC0 or RFE that clears the KU flag) is executed in kernel mode. |
-- This can be easily fixed but is not very urgent. |
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|
library ieee; |
use ieee.std_logic_1164.all; |