bare1_2

examples/bare1.rs

@@ -79,16 +79,28 @@ fn main() -> ! {
 //    > disassemble
 //
 //    ** your answer here **
-//
+// Dump of assembler code for function bare1::__cortex_m_rt_main:
+// 0x0800040a <+0>:	sub	sp, #8
+// 0x0800040c <+2>:	mvn.w	r0, #1
+// 0x08000410 <+6>:	str	r0, [sp, #4]
+// => 0x08000412 <+8>:	bkpt	0x0000
+// 0x08000414 <+10>:	mov.w	r0, #4294967295	; 0xffffffff
+// 0x08000418 <+14>:	add	r4, sp, #4
+// 0x0800041a <+16>:	str	r0, [sp, #4]
+// 0x0800041c <+18>:	bkpt	0x0000
+// 0x0800041e <+20>:	mov	r0, r4
+// 0x08000420 <+22>:	bl	0x8000400 <core::ptr::read_volatile>
+// 0x08000424 <+26>:	bkpt	0x0000
+
 //    How many instructions are in between the two `bkpt` instructions in the loop.
 //    Notice, the generated code may not be exactly what you expect :)
 //
 //    ** your answer here **
-//
+//      there are 6 instructions
 //    Which instruction stores the local variable on the stack.
 //
 //    ** your answer here **
-//
+//      str r0 [sp, #4]
 //    Commit your answers (bare1_2)
 //
 // 3. Release mode (optimized builds).