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Revert Portable/BCC formatting (#828)

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Revert Portable/BCC formatting
This commit is contained in:
Soren Ptak 2023-12-07 11:51:11 -05:00 • committed by GitHub
parent bcf7bdaa13
commit ac7fc396a0
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6 changed files with 225 additions and 241 deletions
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42
portable/BCC/16BitDOS/common/portcomn.c
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@ -27,16 +27,16 @@
*/
/*
* Changes from V1.00:
*
+ pxPortInitialiseStack() now initialises the stack of new tasks to the
+ same format used by the compiler. This allows the compiler generated
+ interrupt mechanism to be used for context switches.
+
+ Changes from V2.6.1
+
+ Move usPortCheckFreeStackSpace() to tasks.c.
*/
Changes from V1.00:
+ pxPortInitialiseStack() now initialises the stack of new tasks to the
same format used by the compiler. This allows the compiler generated
interrupt mechanism to be used for context switches.
Changes from V2.6.1
+ Move usPortCheckFreeStackSpace() to tasks.c.
*/
#include <dos.h>
@ -46,14 +46,12 @@
/*-----------------------------------------------------------*/
/* See header file for description. */
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
TaskFunction_t pxCode,
void * pvParameters )
StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
{
StackType_t DS_Reg = 0;
StackType_t DS_Reg = 0;
/* Place a few bytes of known values on the bottom of the stack.
* This is just useful for debugging. */
This is just useful for debugging. */
*pxTopOfStack = 0x1111;
pxTopOfStack--;
@ -70,8 +68,8 @@ StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
/*lint -e950 -e611 -e923 Lint doesn't like this much - but nothing I can do about it. */
/* We are going to start the scheduler using a return from interrupt
* instruction to load the program counter, so first there would be the
* function call with parameters preamble. */
instruction to load the program counter, so first there would be the
function call with parameters preamble. */
*pxTopOfStack = FP_SEG( pvParameters );
pxTopOfStack--;
@ -91,8 +89,8 @@ StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
pxTopOfStack--;
/* The remaining registers would be pushed on the stack by our context
* switch function. These are loaded with values simply to make debugging
* easier. */
switch function. These are loaded with values simply to make debugging
easier. */
*pxTopOfStack = ( StackType_t ) 0xAAAA; /* AX */
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xBBBB; /* BX */
@ -105,11 +103,9 @@ StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
pxTopOfStack--;
/* We need the true data segment. */
__asm {
MOV DS_Reg, DS
};
__asm{ MOV DS_Reg, DS };
*pxTopOfStack = DS_Reg; /* DS */
*pxTopOfStack = DS_Reg; /* DS */
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x0123; /* SI */
pxTopOfStack--;