bare1_4

examples/bare1.rs

@@ -31,7 +31,7 @@ fn main() -> ! {
         cortex_m::asm::nop();
         //iprintln!(stim, "{}",_x);
         //hprintln!("{}", _x).unwrap();
-        //cortex_m::asm::bkpt();
+        cortex_m::asm::bkpt();
         _x -= 1;
     }
 }
@@ -161,7 +161,44 @@ fn main() -> ! {
 //    What is the output of:
 //    (gdb) disassemble
 //
-//    ** your answer here **
+//    ** 
+// 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	0x800043a <main+54>
+//    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::h0ac7b7a3f33f2667>
+//    0x08000422 <+30>:	b.n	0x8000424 <main+32>
+// => 0x08000424 <+32>:	bkpt	0x0000
+//    0x08000426 <+34>:	b.n	0x8000428 <main+36>
+//    0x08000428 <+36>:	ldr	r0, [sp, #12]
+//    0x0800042a <+38>:	subs	r1, r0, #1
+//    0x0800042c <+40>:	cmp	r0, #1
+//    0x0800042e <+42>:	str	r1, [sp, #4]
+//    0x08000430 <+44>:	bvs.n	0x8000448 <main+68>
+//    0x08000432 <+46>:	b.n	0x8000434 <main+48>
+//    0x08000434 <+48>:	ldr	r0, [sp, #4]
+//    0x08000436 <+50>:	str	r0, [sp, #12]
+//    0x08000438 <+52>:	b.n	0x800040c <main+8>
+//    0x0800043a <+54>:	movw	r0, #1980	; 0x7bc
+//    0x0800043e <+58>:	movt	r0, #2048	; 0x800
+//    0x08000442 <+62>:	bl	0x800046a <core::panicking::panic::h4c45e71f0f614f08>
+//    0x08000446 <+66>:	udf	#254	; 0xfe
+//    0x08000448 <+68>:	movw	r0, #2052	; 0x804
+//    0x0800044c <+72>:	movt	r0, #2048	; 0x800
+//    0x08000450 <+76>:	bl	0x800046a <core::panicking::panic::h4c45e71f0f614f08>
+//    0x08000454 <+80>:	udf	#254	; 0xfe
+// End of assembler dump.
+// **
 //
 //    Commit your answers (bare1_4)
 //