From b5c23411d96bd86abc511e9f96ec29430dc53ca2 Mon Sep 17 00:00:00 2001
From: anttib-5 <anttib-5@student.ltu.se>
Date: Thu, 7 Mar 2019 15:55:58 +0100
Subject: [PATCH] bare1_3
---
examples/bare1.rs | 36 +++++++++++++++++++++++++++++++++++-
1 file changed, 35 insertions(+), 1 deletion(-)
diff --git a/examples/bare1.rs b/examples/bare1.rs
index bf10cf0..49dc6ed 100644
--- a/examples/bare1.rs
+++ b/examples/bare1.rs
@@ -24,7 +24,7 @@ fn main() -> ! {
let mut _x = 0;
loop {
_x += 1;
- //cortex_m::asm::nop();
+ cortex_m::asm::nop();
//cortex_m::asm::bkpt();
_x -= 1;
}
@@ -109,6 +109,40 @@ fn main() -> ! {
// What is the output of:
// (gdb) disassemble
//
+//Dump of assembler code for function main:
+ // 0x08000404 <+0>: sub sp, #16
+ // 0x08000406 <+2>: movs r0, #0
+ // 0x08000408 <+4>: str r0, [sp, #12]
+ // 0x0800040a <+6>: b.n 0x800040c <main+8>
+ // 0x0800040c <+8>: ldr r0, [sp, #12]
+ // 0x0800040e <+10>: adds r1, r0, #1
+ // 0x08000410 <+12>: mov r2, r1
+ // 0x08000412 <+14>: cmp r1, r0
+ // 0x08000414 <+16>: str r2, [sp, #8]
+ // 0x08000416 <+18>: bvs.n 0x8000436 <main+50>
+ // 0x08000418 <+20>: b.n 0x800041a <main+22>
+ // 0x0800041a <+22>: ldr r0, [sp, #8]
+ // 0x0800041c <+24>: str r0, [sp, #12]
+ // 0x0800041e <+26>: bl 0x8000400 <cortex_m::asm::nop>
+ // 0x08000422 <+30>: b.n 0x8000424 <main+32>
+ // 0x08000424 <+32>: ldr r0, [sp, #12]
+ // 0x08000426 <+34>: subs r1, r0, #1
+ // 0x08000428 <+36>: cmp r0, #1
+ // 0x0800042a <+38>: str r1, [sp, #4]
+ // 0x0800042c <+40>: bvs.n 0x8000444 <main+64>
+ // 0x0800042e <+42>: b.n 0x8000430 <main+44>
+ // 0x08000430 <+44>: ldr r0, [sp, #4]
+ // 0x08000432 <+46>: str r0, [sp, #12]
+// => 0x08000434 <+48>: b.n 0x800040c <main+8>
+ // 0x08000436 <+50>: movw r0, #2268 ; 0x8dc
+ // 0x0800043a <+54>: movt r0, #2048 ; 0x800
+ // 0x0800043e <+58>: bl 0x8000466 <panic>
+ // 0x08000442 <+62>: udf #254 ; 0xfe
+ // 0x08000444 <+64>: movw r0, #2340 ; 0x924
+ // 0x08000448 <+68>: movt r0, #2048 ; 0x800
+ // 0x0800044c <+72>: bl 0x8000466 <panic>
+ // 0x08000450 <+76>: udf #254 ; 0xfe
+// End of assembler dump.
//
// Commit your answers (bare1_3)
//
--
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