#include "macros.inc"
+#define CCOUNT_SHIFT 4
+#define WAIT_LOOPS 20
+
+.macro make_ccount_delta target, delta
+ rsr \delta, ccount
+ rsr \target, ccount
+ sub \delta, \target, \delta
+ slli \delta, \delta, CCOUNT_SHIFT
+ add \target, \target, \delta
+.endm
+
test_suite timer
test ccount
rsr a3, ccount
rsr a4, ccount
- sub a3, a4, a3
- assert eqi, a3, 1
+ assert ne, a3, a4
test_end
test ccompare
wsr a2, ccompare1
wsr a2, ccompare2
- movi a3, 20
- rsr a2, ccount
- addi a2, a2, 20
+ make_ccount_delta a2, a15
wsr a2, ccompare0
- rsr a2, interrupt
- assert eqi, a2, 0
- loop a3, 1f
- rsr a3, interrupt
- bnez a3, 2f
1:
- test_fail
+ rsr a3, interrupt
+ rsr a4, ccount
+ rsr a5, interrupt
+ sub a4, a4, a2
+ bgez a4, 2f
+ assert eqi, a3, 0
+ j 1b
2:
+ assert nei, a5, 0
test_end
test ccompare0_interrupt
wsr a2, ccompare1
wsr a2, ccompare2
- movi a3, 20
- rsr a2, ccount
- addi a2, a2, 20
+ movi a3, WAIT_LOOPS
+ make_ccount_delta a2, a15
wsr a2, ccompare0
rsync
rsr a2, interrupt
wsr a2, ccompare0
wsr a2, ccompare2
- movi a3, 20
- rsr a2, ccount
- addi a2, a2, 20
+ movi a3, WAIT_LOOPS
+ make_ccount_delta a2, a15
wsr a2, ccompare1
rsync
rsr a2, interrupt
wsr a2, ccompare0
wsr a2, ccompare1
- movi a3, 20
- rsr a2, ccount
- addi a2, a2, 20
+ movi a3, WAIT_LOOPS
+ make_ccount_delta a2, a15
wsr a2, ccompare2
rsync
rsr a2, interrupt
movi a2, 0
wsr a2, ccompare2
- movi a3, 40
- rsr a2, ccount
- addi a2, a2, 20
+ movi a3, 2 * WAIT_LOOPS
+ make_ccount_delta a2, a15
wsr a2, ccompare1
- addi a2, a2, 20
+ add a2, a2, a15
wsr a2, ccompare0
rsync
rsr a2, interrupt
movi a2, 0
wsr a2, ccompare2
- movi a3, 40
- rsr a2, ccount
- addi a2, a2, 20
+ movi a3, 2 * WAIT_LOOPS
+ make_ccount_delta a2, a15
wsr a2, ccompare1
- addi a2, a2, 20
+ add a2, a2, a15
wsr a2, ccompare0
rsync
rsr a2, interrupt