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pigweed / third_party / github / FreeRTOS / FreeRTOS-Kernel / e0bab5981a07657965412b60f4d801e6328c031e / . / FreeRTOS / Demo / CORTEX_M0_STM32F0518_IAR / RegTest.s
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RSEG CODE:CODE(2)
thumb
EXTERN ulRegTest1LoopCounter
EXTERN ulRegTest2LoopCounter
PUBLIC vRegTest1Task
PUBLIC vRegTest2Task
/*-----------------------------------------------------------*/
vRegTest1Task
/* Fill the core registers with known values. This is only done once. */
movs r1, #101
movs r2, #102
movs r3, #103
movs r4, #104
movs r5, #105
movs r6, #106
movs r7, #107
movs r0, #108
mov r8, r0
movs r0, #109
mov r9, r0
movs r0, #110
mov r10, r0
movs r0, #111
mov r11, r0
movs r0, #112
mov r12, r0
movs r0, #100
reg1_loop
/* Repeatedly check that each register still contains the value written to
it when the task started. */
cmp r0, #100
bne reg1_error_loop
cmp r1, #101
bne reg1_error_loop
cmp r2, #102
bne reg1_error_loop
cmp r3, #103
bne reg1_error_loop
cmp r4, #104
bne reg1_error_loop
cmp r5, #105
bne reg1_error_loop
cmp r6, #106
bne reg1_error_loop
cmp r7, #107
bne reg1_error_loop
movs r0, #108
cmp r8, r0
bne reg1_error_loop
movs r0, #109
cmp r9, r0
bne reg1_error_loop
movs r0, #110
cmp r10, r0
bne reg1_error_loop
movs r0, #111
cmp r11, r0
bne reg1_error_loop
movs r0, #112
cmp r12, r0
bne reg1_error_loop
/* Everything passed, increment the loop counter. */
push { r1 }
ldr r0, =ulRegTest1LoopCounter
ldr r1, [r0]
adds r1, r1, #1
str r1, [r0]
pop { r1 }
/* Start again. */
movs r0, #100
b reg1_loop
reg1_error_loop
/* If this line is hit then there was an error in a core register value.
The loop ensures the loop counter stops incrementing. */
b reg1_error_loop
nop
vRegTest2Task
/* Fill the core registers with known values. This is only done once. */
movs r1, #1
movs r2, #2
movs r3, #3
movs r4, #4
movs r5, #5
movs r6, #6
movs r7, #7
movs r0, #8
mov r8, r0
movs r0, #9
mov r9, r0
movs r0, #10
mov r10, r0
movs r0, #11
mov r11, r0
movs r0, #12
mov r12, r0
movs r0, #10
reg2_loop
/* Repeatedly check that each register still contains the value written to
it when the task started. */
cmp r0, #10
bne reg2_error_loop
cmp r1, #1
bne reg2_error_loop
cmp r2, #2
bne reg2_error_loop
cmp r3, #3
bne reg2_error_loop
cmp r4, #4
bne reg2_error_loop
cmp r5, #5
bne reg2_error_loop
cmp r6, #6
bne reg2_error_loop
cmp r7, #7
bne reg2_error_loop
movs r0, #8
cmp r8, r0
bne reg2_error_loop
movs r0, #9
cmp r9, r0
bne reg2_error_loop
movs r0, #10
cmp r10, r0
bne reg2_error_loop
movs r0, #11
cmp r11, r0
bne reg2_error_loop
movs r0, #12
cmp r12, r0
bne reg2_error_loop
/* Everything passed, increment the loop counter. */
push { r1 }
ldr r0, =ulRegTest2LoopCounter
ldr r1, [r0]
adds r1, r1, #1
str r1, [r0]
pop { r1 }
/* Start again. */
movs r0, #10
b reg2_loop
reg2_error_loop
/* If this line is hit then there was an error in a core register value.
The loop ensures the loop counter stops incrementing. */
b reg2_error_loop
nop
END