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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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66
portable/BCC/16BitDOS/common/portasm.h
View file

@ -48,40 +48,40 @@ void portSWITCH_CONTEXT( void );
void portFIRST_CONTEXT( void );
/* There are slightly different versions depending on whether you are building
* to include debugger information. If debugger information is used then there
* are a couple of extra bytes left of the ISR stack (presumably for use by the
* debugger). The true stack pointer is then stored in the bp register. We add
* 2 to the stack pointer to remove the extra bytes before we restore our context. */
to include debugger information. If debugger information is used then there
are a couple of extra bytes left of the ISR stack (presumably for use by the
debugger). The true stack pointer is then stored in the bp register. We add
2 to the stack pointer to remove the extra bytes before we restore our context. */
#define portSWITCH_CONTEXT() \
asm { mov ax, seg pxCurrentTCB } \
asm { mov ds, ax } \
asm { les bx, pxCurrentTCB } /* Save the stack pointer into the TCB. */ \
asm { mov es : 0x2[ bx ], ss } \
asm { mov es:[ bx ], sp } \
asm { call far ptr vTaskSwitchContext } /* Perform the switch. */ \
asm { mov ax, seg pxCurrentTCB } /* Restore the stack pointer from the TCB. */ \
asm { mov ds, ax } \
asm { les bx, dword ptr pxCurrentTCB } \
asm { mov ss, es:[ bx + 2 ] } \
asm { mov sp, es:[ bx ] }
#define portSWITCH_CONTEXT() \
asm { mov ax, seg pxCurrentTCB } \
asm { mov ds, ax } \
asm { les bx, pxCurrentTCB } /* Save the stack pointer into the TCB. */ \
asm { mov es:0x2[ bx ], ss } \
asm { mov es:[ bx ], sp } \
asm { call far ptr vTaskSwitchContext } /* Perform the switch. */ \
asm { mov ax, seg pxCurrentTCB } /* Restore the stack pointer from the TCB. */ \
asm { mov ds, ax } \
asm { les bx, dword ptr pxCurrentTCB } \
asm { mov ss, es:[ bx + 2 ] } \
asm { mov sp, es:[ bx ] }
#define portFIRST_CONTEXT() \
__asm { mov ax, seg pxCurrentTCB } \
__asm { mov ds, ax } \
__asm { les bx, dword ptr pxCurrentTCB } \
__asm { mov ss, es:[ bx + 2 ] } \
__asm { mov sp, es:[ bx ] } \
__asm { pop bp } \
__asm { pop di } \
__asm { pop si } \
__asm { pop ds } \
__asm { pop es } \
__asm { pop dx } \
__asm { pop cx } \
__asm { pop bx } \
__asm { pop ax } \
__asm { iret }
#define portFIRST_CONTEXT() \
__asm { mov ax, seg pxCurrentTCB } \
__asm { mov ds, ax } \
__asm { les bx, dword ptr pxCurrentTCB } \
__asm { mov ss, es:[ bx + 2 ] } \
__asm { mov sp, es:[ bx ] } \
__asm { pop bp } \
__asm { pop di } \
__asm { pop si } \
__asm { pop ds } \
__asm { pop es } \
__asm { pop dx } \
__asm { pop cx } \
__asm { pop bx } \
__asm { pop ax } \
__asm { iret }
#endif /* ifndef PORT_ASM_H */
#endif

42
portable/BCC/16BitDOS/common/portcomn.c
View file

@ -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--;