debug tool for STM32F042F6P6
check_alternative_mode.s@0:98789a3f7363, 2019-04-15 (annotated)
- Committer:
- bieleluk
- Date:
- Mon Apr 15 13:00:43 2019 +0000
- Revision:
- 0:98789a3f7363
- Child:
- 24:bc7c4e8f3fe0
Debug tool for STM32F042F6P6
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
bieleluk | 0:98789a3f7363 | 1 | AREA asm_func, CODE, READONLY |
bieleluk | 0:98789a3f7363 | 2 | ; Export my_asm function location so that C compiler can find it and link |
bieleluk | 0:98789a3f7363 | 3 | EXPORT check_alternative_mode |
bieleluk | 0:98789a3f7363 | 4 | check_alternative_mode |
bieleluk | 0:98789a3f7363 | 5 | |
bieleluk | 0:98789a3f7363 | 6 | PUSH {LR} |
bieleluk | 0:98789a3f7363 | 7 | ;R0 = GPIOx |
bieleluk | 0:98789a3f7363 | 8 | ;R1 = offset |
bieleluk | 0:98789a3f7363 | 9 | ;r2 = pin_number |
bieleluk | 0:98789a3f7363 | 10 | |
bieleluk | 0:98789a3f7363 | 11 | |
bieleluk | 0:98789a3f7363 | 12 | LDR R3, [R0, R1] |
bieleluk | 0:98789a3f7363 | 13 | |
bieleluk | 0:98789a3f7363 | 14 | LDR R0, =28 |
bieleluk | 0:98789a3f7363 | 15 | SUBS R0,R2 |
bieleluk | 0:98789a3f7363 | 16 | SUBS R0,R2 |
bieleluk | 0:98789a3f7363 | 17 | SUBS R0,R2 |
bieleluk | 0:98789a3f7363 | 18 | SUBS R0,R2 |
bieleluk | 0:98789a3f7363 | 19 | |
bieleluk | 0:98789a3f7363 | 20 | LSLS R3,R3,R0 |
bieleluk | 0:98789a3f7363 | 21 | LSRS R3,#28 |
bieleluk | 0:98789a3f7363 | 22 | |
bieleluk | 0:98789a3f7363 | 23 | MOVS R0,R3 |
bieleluk | 0:98789a3f7363 | 24 | |
bieleluk | 0:98789a3f7363 | 25 | POP {PC} |
bieleluk | 0:98789a3f7363 | 26 | |
bieleluk | 0:98789a3f7363 | 27 | ALIGN |
bieleluk | 0:98789a3f7363 | 28 | END |
bieleluk | 0:98789a3f7363 | 29 |