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view level1/modules/dwwrmess.asm @ 3267:024ad1d926fd

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Get gfx2 to build from cmds folders Now that gfx2.asm needs to include coco3vtio.d the latter needs to be built first and be accessed from the port-specific defs folder. OTOH the one built in 3rd-party/packages/basic09 is built only later during a full build. (All the different defs folders and .d files still puzzle me.) Also updated coco3fpga/defs/makefile to be based on the coco3 one. The mc09l2 port doesn't need gfx and gfx2. Note for later: This whole build of basic09 components from the 3rdparty folder during the ports builds is not very nice. At a minimum we should try to limit the extra --includedir to the few commands needing it.
author Tormod Volden <debian.tormod@gmail.com>
date Wed, 17 Jul 2019 01:14:55 +0200
parents c505ae3120c4
children
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*******************************************************
*
* DWWriteMESS
*  
*  4/27/10 AAW - Based on John Linville's example
*
* Entry:
*    X  = starting address of data to send
*    Y  = number of bytes to send
*
* Exit:
*    X  = address of last byte sent + 1
*    Y  = 0
*    All others preserved
*


DWWrite   pshs      u,d,cc              ; preserve registers
          orcc      #$50                ; mask interrupts

txByte   ldb       ,x+                 ; get a byte to transmit
         stb       $ffe0               ; write it to the FIFO
         leay      ,-y                ; decrement byte counter
         bne       txByte              ; loop if more to send          
          
          puls      cc,d,u,pc           ; restore registers and return