$EE Code for electric water pump on AIR output

**dzidaV8** · 11-14-2017

OK, so the subroutine would look like this:

Code:

;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
;
; Routine to enable Electric Water Pump when engine not running
;
;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
9000    1D 00 01            bclr    0, X, #%00000001       ; Disable WP (X already set to $1800)
9003    B6 01 28            ldaA    L0128                  ; Load A/D Ignition Voltage
9006    81 30               cmpA    #$30                   ; Compare to 48
9008    23 0A               bls    @1                      ; Bra to return if Ign Voltage <= 4.8V (Ignition off)
900A    B6 01 92            ldaA    l_0192_CoolTmp_fltrd_$f0    ; Load Coolant Temp
900D    81 B9               cmpA    #$B9                   ; Compare temp to 99 deg C
900F    23 03               bls    @1                      ; Bra to return if Temp <= threshold
9011    1C 00 01            bset    0, X, #%00000001       ; Enable WP (X already set to $1800)
9014    7E 49 44        @1  jmp     L4944
;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

And:

Code:

4935    CE 18 00            ldX    #$1800
4938    12 23 80 05         brset   L0023, #%10000000, @7
493C    7E 90 00            jmp     L9000 ; jump to new subroutine
493F    20 03               jr    @8
;
4941    1C 00 01        @7  bset    0, X, #%00000001

Now I just need 23 bytes of program memory to add my subroutine. Kur4o, can you point me at some usable address?

[EDIT] I've found E-side 0x9000 - 0x93FF marked as free memory in EEXtra.xdf, so I guess the subroutine goes to 0x9000 :)