;-------------------------------------------------------------------------------
; MSP430 Assembler Code Template for use with TI Code Composer Studio
;
;
;-------------------------------------------------------------------------------
					.cdecls C,LIST,"msp430.h" 								; Include device header file
;-------------------------------------------------------------------------------
					.text														; Assemble into program memory
					.retain													; Override ELF conditional linking
																				; and retain current section
					.retainrefs 											; Additionally retain any sections
																				; that have references to current
																				; section

;-------------------------------------------------------------------------------
RESET 			mov.w #__STACK_END,SP 					; Initialize stackpointer
StopWDT 		mov.w #WDTPW|WDTHOLD,&WDTCTL 	; Stop watchdog timer

;-------------------------------------------------------------------------------
; Main loop here
;-------------------------------------------------------------------------------

mainloop
					mov.b #0xFF, &P1DIR							; all P1 pins set to output
					mov.b #0x01, R15									; define initial value for counter as 1
					call #count
count:
					loop mov.b R15, &P1OUT						; counter LED output
					call #delay
					cmp.b #0x63, R15									; if counter hits 99 (01100011)
																				; reset counter to 0
																				; else keep counting
					jz rst
					inc.b R15
					jmp loop
rst
					mov.b #0x00, R15
					jmp loop
					ret
delay:																		; Delay routine of about 0.7s
					mov.w #00004h, R11
loop_a			mov.w #0D901h, R10
loop_b			dec.w R10
					jnz loop_b
					dec.w R11
					jnz loop_a
					ret

;-------------------------------------------------------------------------------
; Stack Pointer definition
;-------------------------------------------------------------------------------
					.global __STACK_END
					.sect .stack

;-------------------------------------------------------------------------------
; Interrupt Vectors
;-------------------------------------------------------------------------------
					.sect ".reset"											; MSP430 RESET Vector
					.short RESET