diff options
| author | Alex White <alex.white@oarcorp.com> | 2021-09-30 23:57:01 -0500 |
|---|---|---|
| committer | Joel Sherrill <joel@rtems.org> | 2021-10-13 14:45:37 -0500 |
| commit | d03776e804e2cb190442d2a2debf297714ca8049 (patch) | |
| tree | 108aba7fb973915a52c407751ce23abf77eccac6 /cpukit/score/cpu/microblaze/microblaze-context-volatile-clobber.S | |
| parent | bsps: Add MicroBlaze FPGA BSP (diff) | |
| download | rtems-d03776e804e2cb190442d2a2debf297714ca8049.tar.bz2 | |
microblaze: Rework for RTEMS 6
This reworks the existing MicroBlaze architecture port and BSP to
achieve basic functionality using the latest RTEMS APIs.
Diffstat (limited to 'cpukit/score/cpu/microblaze/microblaze-context-volatile-clobber.S')
| -rw-r--r-- | cpukit/score/cpu/microblaze/microblaze-context-volatile-clobber.S | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/cpukit/score/cpu/microblaze/microblaze-context-volatile-clobber.S b/cpukit/score/cpu/microblaze/microblaze-context-volatile-clobber.S new file mode 100644 index 0000000000..fb49dc5e40 --- /dev/null +++ b/cpukit/score/cpu/microblaze/microblaze-context-volatile-clobber.S @@ -0,0 +1,28 @@ +#ifdef HAVE_CONFIG_H + #include "config.h" +#endif + +#include <rtems/asm.h> + +.text +.align 4 + +PUBLIC(_CPU_Context_volatile_clobber) + +SYM(_CPU_Context_volatile_clobber): + +.macro clobber_register reg + addi r5, r5, -1 + add \reg, r0, r5 +.endm + + clobber_register r3 + clobber_register r4 + clobber_register r6 + clobber_register r7 + clobber_register r8 + clobber_register r9 + clobber_register r10 + + rtsd r15, 8 + nop |