| /* |
| * fido-hosted.S -- |
| * |
| * Copyright (c) 2006 CodeSourcery Inc |
| * |
| * The authors hereby grant permission to use, copy, modify, distribute, |
| * and license this software and its documentation for any purpose, provided |
| * that existing copyright notices are retained in all copies and that this |
| * notice is included verbatim in any distributions. No written agreement, |
| * license, or royalty fee is required for any of the authorized uses. |
| * Modifications to this software may be copyrighted by their authors |
| * and need not follow the licensing terms described here, provided that |
| * the new terms are clearly indicated on the first page of each file where |
| * they apply. |
| */ |
| |
| /* Semihosting function. The debugger intercepts the halt, and |
| determines that it is followed by the sentinel pattern. */ |
| |
| .globl __hosted |
| __hosted: |
| linkw %fp,#0 |
| movel %fp@(8),%d0 |
| movel %fp@(12),%d1 |
| .align 4 |
| nop |
| bkpt #0 |
| |
| /* This sentinel instruction value must be immediately after |
| the bkpt instruction. The debugger will adjust the pc, so |
| that it is never executed. This instruction is |
| 'movec %sp,0'. */ |
| .long 0x4e7bf000 |
| unlk %fp |
| rts |
