diff options
Diffstat (limited to 'c/src/lib/libbsp/m68k/gen68302/start/start.S')
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68302/start/start.S | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/c/src/lib/libbsp/m68k/gen68302/start/start.S b/c/src/lib/libbsp/m68k/gen68302/start/start.S index a3dd257fe7..98947985f4 100644 --- a/c/src/lib/libbsp/m68k/gen68302/start/start.S +++ b/c/src/lib/libbsp/m68k/gen68302/start/start.S @@ -197,22 +197,18 @@ cpy_Bad1: move.l d1,(a0)+ | zero out uninitialized data area | zerobss: - moveal # SYM (_end),a0 | find end of .bss - moveal # SYM (_bss_start),a1 | find beginning of .bss + moveal # SYM (_clear_end),a0 | find end of .bss + moveal # SYM (_clear_start),a1 | find beginning of .bss moveq #0,d0 loop: movel d0,a1@+ | to zero out uninitialized cmpal a0,a1 - jlt loop | loop until _end reached + jlt loop | loop until _clear_end reached - movel # SYM (_end),d0 | d0 = end of bss/start of heap - addl # SYM (heap_size),d0 | d0 = end of heap - movel d0, SYM (stack_start) | Save for brk() routine - addl # SYM (stack_size),d0 | make room for stack - andl #0xffffffc0,d0 | align it on 16 byte boundary + movel d0, SYM (_stack_init) | Set Stack pointer movw #0x3700,sr | SUPV MODE,INTERRUPTS OFF!!! - movel d0,a7 | set master stack pointer - movel d0,a6 | set base pointer + movel d0,a7 | set master stack pointer + movel d0,a6 | set base pointer /* * RTEMS should maintain a separate interrupt stack on CPUs |