From 48a7fa31f918a6fc88719b3c9393a9ba2829f42a Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Tue, 15 Nov 2016 10:37:59 -0600 Subject: Remove texinfo format documentation. Replaced by Sphinx formatted documentation. closes #2812. --- doc/porting/cpuinit.t | 49 ------------------------------------------------- 1 file changed, 49 deletions(-) delete mode 100644 doc/porting/cpuinit.t (limited to 'doc/porting/cpuinit.t') diff --git a/doc/porting/cpuinit.t b/doc/porting/cpuinit.t deleted file mode 100644 index 9e8e36c86c..0000000000 --- a/doc/porting/cpuinit.t +++ /dev/null @@ -1,49 +0,0 @@ -@c -@c COPYRIGHT (c) 1988-2002. -@c On-Line Applications Research Corporation (OAR). -@c All rights reserved. - -@chapter CPU Initialization - -This section describes the general CPU and system initialization sequence -as it pertains to the CPU dependent code. - -@section Introduction - -XXX general startup sequence description rewritten to make it more -applicable to CPU depdent code in executive - -@section Initializing the CPU - -The _CPU_Initialize routine performs processor dependent initialization. - -@example -void _CPU_Initialize( - void (*thread_dispatch) /* may be ignored */ -) -@end example - -The thread_dispatch argument is the address of the entry point for the -routine called at the end of an ISR once it has been decided a context -switch is necessary. On some compilation systems it is difficult to call -a high-level language routine from assembly. Providing the address of the -_Thread_ISR_Dispatch routine allows the porter an easy way to obtain this -critical address and thus provides an easy way to work around this -limitation on these systems. - -If you encounter this problem save the entry point in a CPU dependent -variable as shown below: - -@example -_CPU_Thread_dispatch_pointer = thread_dispatch; -@end example - - -During the initialization of the context for tasks with floating point, -the CPU dependent code is responsible for initializing the floating point -context. If there is not an easy way to initialize the FP context during -Context_Initialize, then it is usually easier to save an "uninitialized" -FP context here and copy it to the task's during Context_Initialize. If -this technique is used to initialize the FP contexts, then it is important -to ensure that the state of the floating point unit is in a coherent, -initialized state. -- cgit v1.2.3