diff options
Diffstat (limited to 'Demo/NEC_78K0R_IAR/RegTest.s26')
| -rw-r--r-- | Demo/NEC_78K0R_IAR/RegTest.s26 | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/Demo/NEC_78K0R_IAR/RegTest.s26 b/Demo/NEC_78K0R_IAR/RegTest.s26 index 9b51b407..a95758b6 100644 --- a/Demo/NEC_78K0R_IAR/RegTest.s26 +++ b/Demo/NEC_78K0R_IAR/RegTest.s26 @@ -30,6 +30,11 @@ ;
;------------------------------------------------------------------------------
+
+;
+; This file defines the RegTest tasks as described at the top of main.c
+;
+
;------------------------------------------------------------------------------
#if __CORE__ != __78K0R__
@@ -53,7 +58,7 @@ ;
; Input: NONE
;
-; Call: CALL vRegTest1
+; Call: Created as a task.
;
; Output: NONE
;
@@ -61,6 +66,7 @@ RSEG CODE:CODE
vRegTest1:
+ ; First fill the registers.
MOVW AX, #0x1122
MOVW BC, #0x3344
MOVW DE, #0x5566
@@ -69,10 +75,19 @@ vRegTest1: MOV ES, #0x02
loop1:
+ ; Continuously check that the register values remain at their expected
+ ; values. The BRK is to test the yield. This task runs at low priority
+ ; so will also regularly get preempted.
BRK
+
+ ; Compare with the expected value.
CMPW AX, #0x1122
BZ +5
+ ; Jump over the branch to vRegTestError() if the register contained the
+ ; expected value - otherwise flag an error by executing vRegTestError().
BR vRegTestError
+
+ ; Repeat for all the registers.
MOVW AX, BC
CMPW AX, #0x3344
BZ +5
@@ -104,7 +119,7 @@ loop1: ;
; Input: NONE
;
-; Call: CALL vRegTest1
+; Call: Created as a task.
;
; Output: NONE
;
|