From fdf160ecbd96bf488856873c1858fc09188899a0 Mon Sep 17 00:00:00 2001
From: rubenasplund <ruben.asplund@hotmail.com>
Date: Fri, 4 Dec 2020 16:46:29 +0100
Subject: [PATCH] Exercise E
---
examples/rtt_timing.rs | 22 +++++++++++++++++++---
1 file changed, 19 insertions(+), 3 deletions(-)
diff --git a/examples/rtt_timing.rs b/examples/rtt_timing.rs
index 4ac047a..55ec247 100644
--- a/examples/rtt_timing.rs
+++ b/examples/rtt_timing.rs
@@ -212,6 +212,22 @@ fn timed_loop() -> (u32, u32) {
// (gdb) info registers
//
// [Register dump here]
+// r0 0x80000000 -2147483648
+// r1 0xe0001004 -536866812
+// r2 0x3e8 1000
+// r3 0xa 10
+// r4 0x20000000 536870912
+// r5 0x20000430 536871984
+// r6 0x0 0
+// r7 0x2000ffe8 536936424
+// r8 0x0 0
+// r9 0x0 0
+// r10 0x0 0
+// r11 0x0 0
+// r12 0x1 1
+// sp 0x2000ff98 0x2000ff98
+// lr 0x8000373 134218611
+// pc 0x800023e 0x800023e <rtt_timing::timed_loop+12>
//
// We can now set a breakpoint exactly at the `nop`.
//
@@ -236,18 +252,18 @@ fn timed_loop() -> (u32, u32) {
//
// (gdb) x 0xe0001004
//
-// [Your answer here]
+// [ 0xb0ccc188 ]
//
// Now, let's execute one iteration:
// (gdb) continue
//
// What is now the current value of the cycle counter?
//
-// [Your answer here]
+// [ 0xb0ccc18c ]
//
// By how much does the cycle counter increase for each iteration?
//
-// [Your answer here]
+// [0xb0ccc18c - 0xb0ccc188 = 0x4]
//
// ------------------------------------------------------------------------
// F) Reseting the cycle counter
--
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