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view level1/modules/dwinit.asm @ 2786:e333ec1907ef lwtools-port

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Updated makefile(s) so correct coco1 dw boot and dwio.sb files are used. Updated level1/coco1/modules/makefile so that boot_dw_coco1 and dwio_coco1.sb get created. Updated level1/coco1/bootfiles/makefile added detection of PORT status so if coco1 is detected then dwio_coco1.sb and boot_dw_coco1 are used in place of dwio.sb and boot_dw.
author drencor-xeen
date Sun, 27 Jan 2013 00:14:03 -0600
parents ce3dba57003b
children c505ae3120c4
line wrap: on
line source

*******************************************************
*
* DWInit
*    Initialize DriveWire for CoCo Bit Banger

DWInit
               IFNE     ARDUINO

* setup PIA PORTA (read)
               clr       $FF51
               clr       $FF50
               lda       #$2C
               sta       $FF51

* setup PIA PORTB (write)
               clr       $FF53
               lda       #$FF
               sta       $FF52
               lda       #$2C
               sta       $FF53
               rts

               ELSE

               pshs      a,x
               IFDEF     PIA1Base
               ldx       #PIA1Base           $FF20
               clr       1,x                 clear CD
               lda       #%11111110
               sta       ,x
               lda       #%00110100
               sta       1,x
               lda       ,x
               ENDC
               puls       a,x,pc

               ENDC