Rename all manuals with an _ to have a -. It helps released naming of files.

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diff --git a/cpu_supplement/openrisc_1000.rst b/cpu_supplement/openrisc_1000.rst
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-.. comment SPDX-License-Identifier: CC-BY-SA-4.0
-
-.. COMMENT: COPYRIGHT (c) 1989-2007.
-.. COMMENT: On-Line Applications Research Corporation (OAR).
-.. COMMENT: All rights reserved.
-
-OpenRISC 1000 Specific Information
-##################################
-
-This chapter discusses the`OpenRISC 1000 architecture
-http://opencores.org/or1k/Main_Page dependencies in this port of RTEMS. There
-are many implementations for OpenRISC like or1200 and mor1kx. Currently RTEMS
-supports basic features that all implementations should have.
-
-**Architecture Documents**
-
-For information on the OpenRISC 1000 architecture refer to the`OpenRISC 1000
-architecture manual http://openrisc.github.io/or1k.html.
-
-Calling Conventions
-===================
-
-Please refer to the`Function Calling Sequence
-http://openrisc.github.io/or1k.html#__RefHeading__504887_595890882.
-
-Floating Point Unit
--------------------
-
-A floating point unit is currently not supported.
-
-Memory Model
-============
-
-A flat 32-bit memory model is supported.
-
-Interrupt Processing
-====================
-
-OpenRISC 1000 architecture has 13 exception types:
-
-- Reset
-
-- Bus Error
-
-- Data Page Fault
-
-- Instruction Page Fault
-
-- Tick Timer
-
-- Alignment
-
-- Illegal Instruction
-
-- External Interrupt
-
-- D-TLB Miss
-
-- I-TLB Miss
-
-- Range
-
-- System Call
-
-- Floating Point
-
-- Trap
-
-Interrupt Levels
-----------------
-
-There are only two levels: interrupts enabled and interrupts disabled.
-
-Interrupt Stack
----------------
-
-The OpenRISC RTEMS port uses a dedicated software interrupt stack.  The stack
-for interrupts is allocated during interrupt driver initialization.  When an
-interrupt is entered, the _ISR_Handler routine is responsible for switching
-from the interrupted task stack to RTEMS software interrupt stack.
-
-Default Fatal Error Processing
-==============================
-
-The default fatal error handler for this architecture performs the following
-actions:
-
-- disables operating system supported interrupts (IRQ),
-
-- places the error code in ``r0``, and
-
-- executes an infinite loop to simulate a halt processor instruction.
-
-Symmetric Multiprocessing
-=========================
-
-SMP is not supported.