; Test program to verify correct emu8051 operation
;
; Test desc: timers
-; Test output0: PC = $FFF0
-; Test output1: R0 = $22
-; Test output2: R1 = $97
-; Test output3: R2 = $20
-; Test output4: R3 = $42
-; Test output5: TIMER0 = $10DA
-; Test output6: TIMER1 = $1F42
-; Test output7: TCON = $A0
-; Test output8: TMOD = $11
-; Test output9: PSW = $00
+; Test output: PC = $FFF0
+; Test output: SP = $60
+; Test output: R0 = $22
+; Test output: R1 = $97
+; Test output: R2 = $20
+; Test output: R3 = $42
+; Test output: TIMER0 = $10DA
+; Test output: TIMER1 = $1F42
+; Test output: TCON = $A0
+; Test output: TMOD = $11
+; Test output: PSW = $00
TOS EQU 60h ; Adresse du dessus de la pile.
- CSEG
-
ORG 0000h ; Reset vector
MOV SP,#TOS ; Init stack pointer
+ MOV TMOD,#00010001B ; Init timers 0 and 1 as 16-bit timers,
+ ; incremented by the internal clock
+
;; First test: no overflow
MOV TH0,#2
MOV TL0,#55h ; Set initial value of timer0 to $0255
- MOV TMOD,#00010001B ; Init timers 0 and 1 as 16-bit timers,
- ; incremented by the internal clock
- CALL DELAY
+ LCALL DELAY
MOV 00h, TH0 ; Save value of timer 0
MOV 01h, TL0
MOV TL0,#98h ; Set initial value of timer0 to $F098
MOV Th1,#0FFh
MOV TL1,#00h ; Set initial value of timer1 to $FF00
- MOV TMOD,#00010001B ; Init timers 0 and 1 as 16-bit timers,
- ; incremented by the internal clock
- ; Both timers should overflow
- CALL DELAY
+ LCALL DELAY
LJMP 0FFF0h