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OpenChronos/gcc/intrinsics.c

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Initial commit: This port consists of the following: 0) All places where I modified the original code (hopefully) are marked with my initials PFS or pfs. The only actual code changes were to write four functions to replace the intrinsic functions used by TI and IAR. 1) bluerobin code had to be elimiated because mspgcc cannot link to the provided bluerobin library and the source code is not available. 2) four intrinsic functions had to be written. As of 2010-06-13 they are untested and couple of them probably don't work yet. 3) All compiler specific areas what accommodated IAR and CCS were enhanced to accommodate MSPgcc4 4) The Simpliciti *.dat files were converted to *.h files
12 years ago
// intrinsics.c
#include <intrinsics.h>
/* pfs: 2010-06-13 none of the code below has ben tested
* because I have yet to get msp430-gdbproxy working with my FET
*/
/* function: __even_in_range used only in adc12.c
* moved to separate assembler file even_in_range.s
* unsigned short __even_in_range(unsigned short __value, unsigned short __bound)
* the object is to create a more efficient switch statement
*/
//__delay_cycles used in main.c, rf1a.c, bsp_board.c
void __delay_cycles(unsigned long __cycles)
{
// divide by eight
add patches form Niek Lambert * Added fixpointer version of altitude calculation. when the two remaining filters get fixpointer replacments, a LOT of space gets free by not using floatpointer anywhere. the fixpointer versions are also smaller in size. * better display of weekday * show time also in second line * force gcc to not optimize anything in delay intrinsic thanks a lot
12 years ago
asm volatile("clrc");
asm volatile("rra.w %[src]"
Initial commit: This port consists of the following: 0) All places where I modified the original code (hopefully) are marked with my initials PFS or pfs. The only actual code changes were to write four functions to replace the intrinsic functions used by TI and IAR. 1) bluerobin code had to be elimiated because mspgcc cannot link to the provided bluerobin library and the source code is not available. 2) four intrinsic functions had to be written. As of 2010-06-13 they are untested and couple of them probably don't work yet. 3) All compiler specific areas what accommodated IAR and CCS were enhanced to accommodate MSPgcc4 4) The Simpliciti *.dat files were converted to *.h files
12 years ago
: [src] "=r" (__cycles)
: "[src]" (__cycles) );
add patches form Niek Lambert * Added fixpointer version of altitude calculation. when the two remaining filters get fixpointer replacments, a LOT of space gets free by not using floatpointer anywhere. the fixpointer versions are also smaller in size. * better display of weekday * show time also in second line * force gcc to not optimize anything in delay intrinsic thanks a lot
12 years ago
asm volatile("clrc");
asm volatile("rra.w %[src]"
Initial commit: This port consists of the following: 0) All places where I modified the original code (hopefully) are marked with my initials PFS or pfs. The only actual code changes were to write four functions to replace the intrinsic functions used by TI and IAR. 1) bluerobin code had to be elimiated because mspgcc cannot link to the provided bluerobin library and the source code is not available. 2) four intrinsic functions had to be written. As of 2010-06-13 they are untested and couple of them probably don't work yet. 3) All compiler specific areas what accommodated IAR and CCS were enhanced to accommodate MSPgcc4 4) The Simpliciti *.dat files were converted to *.h files
12 years ago
: [src] "=r" (__cycles)
: "[src]" (__cycles) );
add patches form Niek Lambert * Added fixpointer version of altitude calculation. when the two remaining filters get fixpointer replacments, a LOT of space gets free by not using floatpointer anywhere. the fixpointer versions are also smaller in size. * better display of weekday * show time also in second line * force gcc to not optimize anything in delay intrinsic thanks a lot
12 years ago
asm volatile("clrc");
asm volatile("rra.w %[src]"
Initial commit: This port consists of the following: 0) All places where I modified the original code (hopefully) are marked with my initials PFS or pfs. The only actual code changes were to write four functions to replace the intrinsic functions used by TI and IAR. 1) bluerobin code had to be elimiated because mspgcc cannot link to the provided bluerobin library and the source code is not available. 2) four intrinsic functions had to be written. As of 2010-06-13 they are untested and couple of them probably don't work yet. 3) All compiler specific areas what accommodated IAR and CCS were enhanced to accommodate MSPgcc4 4) The Simpliciti *.dat files were converted to *.h files
12 years ago
: [src] "=r" (__cycles)
: "[src]" (__cycles) );
add patches form Niek Lambert * Added fixpointer version of altitude calculation. when the two remaining filters get fixpointer replacments, a LOT of space gets free by not using floatpointer anywhere. the fixpointer versions are also smaller in size. * better display of weekday * show time also in second line * force gcc to not optimize anything in delay intrinsic thanks a lot
12 years ago
asm volatile("DelayLoop:");
asm volatile("nop"); // add nops to increase loop to eight clock cycles
asm volatile("nop");
asm volatile("nop");
asm volatile("nop");
asm volatile("nop");
asm volatile("dec.w %[src]"
Initial commit: This port consists of the following: 0) All places where I modified the original code (hopefully) are marked with my initials PFS or pfs. The only actual code changes were to write four functions to replace the intrinsic functions used by TI and IAR. 1) bluerobin code had to be elimiated because mspgcc cannot link to the provided bluerobin library and the source code is not available. 2) four intrinsic functions had to be written. As of 2010-06-13 they are untested and couple of them probably don't work yet. 3) All compiler specific areas what accommodated IAR and CCS were enhanced to accommodate MSPgcc4 4) The Simpliciti *.dat files were converted to *.h files
12 years ago
: [src] "=r" (__cycles)
: "[src]" (__cycles));
add patches form Niek Lambert * Added fixpointer version of altitude calculation. when the two remaining filters get fixpointer replacments, a LOT of space gets free by not using floatpointer anywhere. the fixpointer versions are also smaller in size. * better display of weekday * show time also in second line * force gcc to not optimize anything in delay intrinsic thanks a lot
12 years ago
asm volatile("jne DelayLoop");
Initial commit: This port consists of the following: 0) All places where I modified the original code (hopefully) are marked with my initials PFS or pfs. The only actual code changes were to write four functions to replace the intrinsic functions used by TI and IAR. 1) bluerobin code had to be elimiated because mspgcc cannot link to the provided bluerobin library and the source code is not available. 2) four intrinsic functions had to be written. As of 2010-06-13 they are untested and couple of them probably don't work yet. 3) All compiler specific areas what accommodated IAR and CCS were enhanced to accommodate MSPgcc4 4) The Simpliciti *.dat files were converted to *.h files
12 years ago
}
//__set_interrupt_state used in bsp_msp430_defs.h, rf1a.c
void __set_interrupt_state(istate_t state)
{
__asm__("bis %0,r2" : : "ir" ((uint16_t) state));
}
//__get_interrupt_state used in bsp_msp430_defs.h, rf1a.c
istate_t __get_interrupt_state(void)
{
return(READ_SR&0x0008);
}