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| author | Abdoulaye Walsimou Gaye <walsimou@walsimou.com> | 2009-04-09 16:26:28 +0200 |
|---|---|---|
| committer | Abdoulaye Walsimou Gaye <walsimou@walsimou.com> | 2009-04-09 16:26:28 +0200 |
| commit | 064ce05f16cd3b58950ccb174b82e61f362e4318 (patch) | |
| tree | 2f4a689c97d4399fb972b1a14d1b90b9f08c6fbb | |
| parent | 8ab4d5eb446cdd5b31b2c1f52f4344b0b147a5df (diff) | |
| download | freertos-064ce05f16cd3b58950ccb174b82e61f362e4318.tar.gz freertos-064ce05f16cd3b58950ccb174b82e61f362e4318.tar.bz2 freertos-064ce05f16cd3b58950ccb174b82e61f362e4318.tar.xz | |
PIC18_SDCC: save and restore context
This patch modifies the way that context are saved and restored in order to do
it in a same manner that SDCC do it when it generates codes.
signed-off-by: Gaye Abdoulaye Walsimou <walsimou@walsimou.com>
| -rw-r--r-- | Source/portable/SDCC/PIC18/port.c | 29 |
1 files changed, 14 insertions, 15 deletions
diff --git a/Source/portable/SDCC/PIC18/port.c b/Source/portable/SDCC/PIC18/port.c index 3ca08ae7..6abaa737 100644 --- a/Source/portable/SDCC/PIC18/port.c +++ b/Source/portable/SDCC/PIC18/port.c @@ -36,7 +36,7 @@ /*---------------------------------------------------------------------- * Heap needed by memory management (malloc.h) in SDCC *----------------------------------------------------------------------*/ -volatile __data unsigned char heap[configTOTAL_HEAP_SIZE]; +__data unsigned char heap[configTOTAL_HEAP_SIZE]; /*---------------------------------------------------------------------- * Implementation of functions defined in portable.h for the PIC18 port. @@ -118,40 +118,39 @@ portSTACK_TYPE *pxPortInitialiseStack(portSTACK_TYPE *pxTopOfStack, pdTASK_CODE *pxTopOfStack = (portSTACK_TYPE)0x22; /* BSR. */ pxTopOfStack--; - *pxTopOfStack = (portSTACK_TYPE)0x33; /* FSR0L. */ + *pxTopOfStack = (portSTACK_TYPE)0x33; /* PRODL. */ pxTopOfStack--; - *pxTopOfStack = (portSTACK_TYPE)0x44; /* FSR0H. */ + *pxTopOfStack = (portSTACK_TYPE)0x44; /* PRODH. */ pxTopOfStack--; - *pxTopOfStack = (portSTACK_TYPE)0x55; /* FSR2L. */ + *pxTopOfStack = (portSTACK_TYPE)0x55; /* FSR0L. */ pxTopOfStack--; - *pxTopOfStack = (portSTACK_TYPE)0x66; /* FSR2H. */ + *pxTopOfStack = (portSTACK_TYPE)0x66; /* FSR0H. */ pxTopOfStack--; - *pxTopOfStack = (portSTACK_TYPE)0x77; /* TABLAT. */ + *pxTopOfStack = (portSTACK_TYPE)0x77; /* PCLATH. */ pxTopOfStack--; - *pxTopOfStack = (portSTACK_TYPE)0x88; /* TBLPTRL. */ + *pxTopOfStack = (portSTACK_TYPE)0x88; /* PCLATU. */ pxTopOfStack--; - *pxTopOfStack = (portSTACK_TYPE)0x99; /* TBLPTRH. */ + *pxTopOfStack = (portSTACK_TYPE)0x99; /* FSR2H. */ pxTopOfStack--; - *pxTopOfStack = (portSTACK_TYPE)0xaa; /* TBLPTRU. */ + *pxTopOfStack = (portSTACK_TYPE)0xaa; /* FSR2L. */ pxTopOfStack--; - *pxTopOfStack = (portSTACK_TYPE)0xbb; /* PRODL. */ + *pxTopOfStack = (portSTACK_TYPE)0xbb; /* TABLAT. */ pxTopOfStack--; - *pxTopOfStack = (portSTACK_TYPE)0xcc; /* PRODH. */ + *pxTopOfStack = (portSTACK_TYPE)0xcc; /* TBLPTRL. */ pxTopOfStack--; - *pxTopOfStack = (portSTACK_TYPE)0xdd; /* PCLATH. */ + *pxTopOfStack = (portSTACK_TYPE)0xdd; /* TBLPTRH. */ pxTopOfStack--; - *pxTopOfStack = (portSTACK_TYPE)0xee; /* PCLATU. */ + *pxTopOfStack = (portSTACK_TYPE)0xee; /* TBLPTRU. */ pxTopOfStack--; - /* Next the .registers sections. Assuming that it is portCOMPILER_MANAGED_MEMORY_SIZE*/ for( ucBlock = 0; ucBlock <portCOMPILER_MANAGED_MEMORY_SIZE; ucBlock++ ) { @@ -175,7 +174,7 @@ portSTACK_TYPE *pxPortInitialiseStack(portSTACK_TYPE *pxTopOfStack, pdTASK_CODE pxTopOfStack--; ulAddress >>= 8; /* TOS Upper. */ - *pxTopOfStack = (portSTACK_TYPE)(ulAddress & (unsigned portLONG)0x00ff ); + *pxTopOfStack = (portSTACK_TYPE)(ulAddress & (unsigned portLONG)0x00ff); pxTopOfStack--; /* Store the number of return addresses on the hardware stack - so far only |