diff options
Diffstat (limited to 'c/src/lib/libbsp/m68k/ods68302/start/debugreset.S')
-rw-r--r-- | c/src/lib/libbsp/m68k/ods68302/start/debugreset.S | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/c/src/lib/libbsp/m68k/ods68302/start/debugreset.S b/c/src/lib/libbsp/m68k/ods68302/start/debugreset.S deleted file mode 100644 index 74049191c4..0000000000 --- a/c/src/lib/libbsp/m68k/ods68302/start/debugreset.S +++ /dev/null @@ -1,107 +0,0 @@ -/* - * $Id$ - * - * Re-written the gen68302 start-up code. - * - * Uses gas syntax only, removed the OAR asm.h. - * - * Supplies a complete vector table in ROM. - * - * Manages all vectors with seperate handlers to trap unhandled - * execptions. - * - * Uses the target specific header file to get the runtime - * configuration - * - * COPYRIGHT (c) 1996 - * Objective Design Systems Pty Ltd (ODS) - * - * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. - * On-Line Applications Research Corporation (OAR). - * All rights assigned to U.S. Government, 1994. - * - * This material may be reproduced by or for the U.S. Government pursuant - * to the copyright license under the clause at DFARS 252.227-7013. This - * notice must appear in all copies of this file and its derivatives. - * - */ - -| -| Entry from debugger -| - .sect .text - -| -| Start -| -| Entered from a hardware reset. -| - - .global start | Default entry point for GNU -start: - - move.w #0x2700,%sr | Disable all interrupts - - | - | zero out uninitialized data area - | - -zerobss: - moveal #end,%a0 | find end of .bss - moveal #bss_start,%a1 | find beginning of .bss - moveq #0,%d0 - -zerobss_loop: - - movel %d0,%a1@+ | to zero out uninitialized - cmpal %a0,%a1 - jlt zerobss_loop | loop until _end reached - - movel #end,%d0 | d0 = end of bss/start of heap - addl #heap_size,%d0 | d0 = end of heap - - movel %d0,stack_start | Save for brk() routine - addl #stack_size,%d0 | make room for stack - andl #0xffffffc0,%d0 | align it on 16 byte boundary - - movw #0x3700,%sr | SUPV MODE,INTERRUPTS OFF!!! - movel %d0,%a7 | set master stack pointer - movel %d0,%a6 | set base pointer - - jsr boot_phase_3 - -| -| Initialised data -| - - .sect .data - - .global start_frame - -start_frame: - .space 4,0 - - .global stack_start - -stack_start: - .space 4,0 - -| -| Uninitialised data -| - - .sect .bss - - .global environ - .align 2 - -environ: - .long 0 - - .global heap_size - .set heap_size,0x2000 - - .global stack_size - .set stack_size,0x1000 - - |