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+;Name: Update
+;Version: UPDATE
+;Description: This is a simple number update program
+;by John A. Toebes, VIII
+;
+;TIP: Download your watch faster: Download a WristApp once, then do not send it again. It stays in the watch!
+;HelpFile: watchapp.hlp
+;HelpTopic: 106
+ INCLUDE "WRISTAPP.I"
+;
+; (1) Program specific constants
+;
+FLAGBYTE EQU $61
+; Bit 1 indicates that we need to clear the display first
+;
+CURVAL EQU $62 ; The current value we are displaying
+;
+; (2) System entry point vectors
+;
+START EQU *
+L0110: jmp MAIN ; The main entry point - WRIST_MAIN
+L0113: rts ; Called when we are suspended for any reason - WRIST_SUSPEND
+ nop
+ nop
+L0116: rts ; Called to handle any timers or time events - WRIST_DOTIC
+ nop
+ nop
+L0119: rts ; Called when the COMM app starts and we have timers pending - WRIST_INCOMM
+ nop
+ nop
+L011c: rts ; Called when the COMM app loads new data - WRIST_NEWDATA
+ nop
+ nop
+
+L011f: lda STATETAB,X ; The state table get routine - WRIST_GETSTATE
+ rts
+
+L0123: jmp HANDLE_STATE0
+ db STATETAB-STATETAB
+;
+; (3) Program strings
+S6_UPDATE: timex6 "UPDATE"
+S6_SAMPLE: timex6 "SAMPLE"
+;
+; (4) State Table
+;
+STATETAB:
+ db 0
+ db EVT_ENTER,TIM_2_8TIC,0 ; Initial state
+ db EVT_TIMER2,TIM_ONCE,0 ; The timer from the enter event
+ db EVT_RESUME,TIM_ONCE,0 ; Resume from a nested app
+ db EVT_MODE,TIM_ONCE,$FF ; Mode button
+ db EVT_DNANY4,TIM_ONCE,0 ; NEXT, PREV, SET, MODE button pressed
+ db EVT_UPANY4,TIM_ONCE,0 ; NEXT, PREV, SET, MODE button released
+ db EVT_END
+;
+; (5) State Table 0 Handler
+; This is called to process the state events.
+; We see ENTER, TIMER2, RESUME, DNANY4 and UPANY4 events
+;
+HANDLE_STATE0:
+ bset 1,APP_FLAGS ; Indicate that we can be suspended
+ lda BTNSTATE ; Get the event
+ cmp #EVT_DNANY4 ; Did they press a button?
+ bne CHKENTER ; No, pass on to see what else there might be
+ lda BTN_PRESSED ; Let's see what the button they pressed was
+ cmp #EVT_PREV ; How about the PREV button
+ beq DO_PREV ; handle it
+ cmp #EVT_NEXT ; Maybe the NEXT button?
+ beq DO_NEXT ; Deal with it!
+ cmp #EVT_SET ; Perhaps the SET button
+ beq DO_SET ; If so, handle it
+ ; In reality, we can't reach here since we handled all three buttons
+ ; in the above code (the MODE button is handled before we get here and the
+ ; GLOW button doesn't send in an event for this). We can just fall through
+ ; and take whatever we get from it.
+CHKENTER
+ cmp #EVT_ENTER ; Is this our initial entry?
+ bne REFRESH
+;
+; This is the initial event for starting us
+;
+DO_ENTER
+ bclr 1,FLAGBYTE ; Indicate that we need to clear the display
+ jsr CLEARSYM ; Clear the display
+ lda #S6_UPDATE-START
+ jsr PUT6TOP
+ lda #S6_SAMPLE-START
+ jsr PUT6MID
+ lda #SYS8_MODE
+ jmp PUTMSGBOT
+;
+; (6) Our real working code...
+
+DO_NEXT
+ bset 0,SYSFLAGS ; Mark our update direction as up
+ bra DO_UPD
+DO_PREV
+ bclr 0,SYSFLAGS ; Mark our update direction as down
+DO_UPD
+ clra
+ sta UPDATE_MIN ; Our low end is 0
+ lda #99
+ sta UPDATE_MAX ; and the high end is 99 (the max since this is a 2 digit value)
+ ldx #CURVAL ; Point to our value to be updated
+ lda #UPD_MID34 ; Request updating in the middle of the display
+ jsr START_UPDATEP ; And prepare the update routine
+ bset 4,BTNFLAGS ; Mark that the update is now pending
+ bclr 1,FLAGBYTE
+ lda #SYS8_SET_MODE
+ jmp PUTMSGBOT
+
+DO_SET
+ clr CURVAL ; When they hit the set button, we just clear to zero
+SHOWVAL
+ brset 1,FLAGBYTE,NOCLEAR ; Do we need to clear the display first?
+REFRESH
+ jsr CLEARALL ; Yes, clear everything before we start
+ bset 1,FLAGBYTE ; And remember that we have already done that
+NOCLEAR
+ bclr 7,BTNFLAGS ; Turn off any update routine that might be pending
+ ldx CURVAL ; Get the current value
+ jsr FMTXLEAD0 ; Convert it to the two ascii digits
+ jmp PUTMID34 ; And put it on the screen in the right place
+;
+; (7) This is the main initialization routine which is called when we first get the app into memory
+;
+MAIN:
+ lda #$c0 ; We want button beeps and to indicate that we have been loaded
+ sta WRISTAPP_FLAGS
+ clr FLAGBYTE ; start with a clean slate
+ clr CURVAL
+ rts