ECE 5465 group 6 / Mbed 2 deprecated Project_2

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   mbed

main.cpp@2:83422444c6e5, 2019-03-02 (annotated)

Committer:
zonzon14
Date:
Sat Mar 02 23:16:18 2019 +0000
Revision:
2:83422444c6e5
Parent:
1:4c0da981b35e
Child:
3:b11d25e57ddd
code for project 2. Compiles but not sure if it works

Who changed what in which revision?

UserRevisionLine numberNew contents of line
zonzon14 0:12c36bcf88f3 1 #include "mbed.h"
zonzon14 0:12c36bcf88f3 2
zonzon14 2:83422444c6e5 3 Timer t1;
zonzon14 2:83422444c6e5 4 Timer t2;
zonzon14 2:83422444c6e5 5 #define Thumb_mult(d,s) __asm {\
zonzon14 2:83422444c6e5 6 MULS d,s;}
zonzon14 2:83422444c6e5 7 #define Thumb2_mult(d,m,s) __asm {\
zonzon14 2:83422444c6e5 8 MULS d,m,s;}
zonzon14 2:83422444c6e5 9
zonzon14 2:83422444c6e5 10
zonzon14 0:12c36bcf88f3 11
zonzon14 0:12c36bcf88f3 12 int main() {
zonzon14 2:83422444c6e5 13
zonzon14 2:83422444c6e5 14 register uint32_t r0= 0xA;
zonzon14 2:83422444c6e5 15 register uint32_t r1= 0x3;
zonzon14 2:83422444c6e5 16 register uint32_t r2= 0x0;
zonzon14 2:83422444c6e5 17 t1.start();
zonzon14 2:83422444c6e5 18 Thumb_mult(r1,r0);
zonzon14 2:83422444c6e5 19 t1.stop();
zonzon14 2:83422444c6e5 20 printf("The time taken was %f milliseconds\n", t1.read()/1000);
zonzon14 2:83422444c6e5 21 t2.start();
zonzon14 2:83422444c6e5 22 Thumb2_mult(r2,r1,r0);
zonzon14 2:83422444c6e5 23 t2.stop();
zonzon14 2:83422444c6e5 24 printf("The time taken was %f milliseconds\n", t2.read()/1000);
zonzon14 2:83422444c6e5 25
zonzon14 2:83422444c6e5 26
zonzon14 2:83422444c6e5 27
zonzon14 0:12c36bcf88f3 28 }