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| -rw-r--r-- | cpu_supplement/openrisc_1000.rst | 37 |
1 files changed, 18 insertions, 19 deletions
diff --git a/cpu_supplement/openrisc_1000.rst b/cpu_supplement/openrisc_1000.rst index cb4b9cc..c9d6127 100644 --- a/cpu_supplement/openrisc_1000.rst +++ b/cpu_supplement/openrisc_1000.rst @@ -1,21 +1,27 @@ .. 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. +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>`_. +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>`_. +Please refer to the`Function Calling Sequence +http://openrisc.github.io/or1k.html#__RefHeading__504887_595890882. Floating Point Unit ------------------- @@ -68,16 +74,16 @@ 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. +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: +The default fatal error handler for this architecture performs the following +actions: - disables operating system supported interrupts (IRQ), @@ -89,10 +95,3 @@ Symmetric Multiprocessing ========================= SMP is not supported. - -.. COMMENT: COPYRIGHT (c) 1989-2007. - -.. COMMENT: On-Line Applications Research Corporation (OAR). - -.. COMMENT: All rights reserved. - |