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- /***************************************************************************
- * Copyright (C) 2010 by Spencer Oliver *
- * spen@spen-soft.co.uk *
- * *
- * Copyright (C) 2011 Øyvind Harboe *
- * oyvind.harboe@zylin.com *
- * *
- * Copyright (C) 2011 Clement Burin des Roziers *
- * clement.burin-des-roziers@hikob.com *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
- ***************************************************************************/
-
-
- // Build : arm-eabi-gcc -c stm32lx.S
- .text
- .syntax unified
- .cpu cortex-m3
- .thumb
- .thumb_func
- .global write
-
- /*
- r0 - destination address
- r1 - source address
- r2 - count
- */
-
- // Set 0 to r3
- movs r3, #0
- // Go to compare
- b.n test_done
-
- write_word:
- // Load one word from address in r0, increment by 4
- ldr.w ip, [r1], #4
- // Store the word to address in r1, increment by 4
- str.w ip, [r0], #4
- // Increment r3
- adds r3, #1
-
- test_done:
- // Compare r3 and r2
- cmp r3, r2
- // Loop if not zero
- bcc.n write_word
-
- // Set breakpoint to exit
- bkpt #0x00
-
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