diff options
Diffstat (limited to 'src/bootloader/bl_start.S')
| -rw-r--r-- | src/bootloader/bl_start.S | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/src/bootloader/bl_start.S b/src/bootloader/bl_start.S index 0105380b8..210089c34 100644 --- a/src/bootloader/bl_start.S +++ b/src/bootloader/bl_start.S @@ -267,28 +267,22 @@ _main_loop: #define STD_INTERRUPT(name, address) \ intvect_##name: \ or 2,2,2; /* Ensure thread priority is high. */ \ - mtsprg1 r1; /* Save GPR1 */ \ - li r1, address; /* Save exception address. */ \ - mtsprg2 r1; /* Move exception address to SPRG2 */ \ - mfsprg1 r1; /* Restore GPR1 */ \ + li r17, address; /* Save exception address. */ \ + mtsprg2 r17; /* Move exception address to SPRG2 */ \ b kernel_std_exception; /* Process interrupt. */ #define STD_INTERRUPT_WITH(name, address, with) \ intvect_##name: \ or 2,2,2; /* Ensure thread priority is high. */ \ - mtsprg1 r1; /* Save GPR1 */ \ - li r1, address; /* Save exception address. */ \ - mtsprg2 r1; /* Move exception address to SPRG2 */ \ - mfsprg1 r1; /* Restore GPR1 */ \ + li r17, address; /* Save exception address. */ \ + mtsprg2 r17; /* Move exception address to SPRG2 */ \ b kernel_std_exception_w_##with; /* Process interrupt. */ #define HYPE_INTERRUPT(name, address) \ intvect_##name: \ or 2,2,2; /* Ensure thread priority is high. */ \ - mtsprg1 r1; /* Save GPR1 */ \ - li r1, address; /* Save exception address. */ \ - mtsprg2 r1; /* Move exception address to SPRG2 */ \ - mfsprg1 r1; /* Restore GPR1 */ \ + li r17, address; /* Save exception address. */ \ + mtsprg2 r17; /* Move exception address to SPRG2 */ \ b kernel_hype_exception; /* Process interrupt. */ STD_INTERRUPT(system_reset, HBBL_system_reset) |
