view lib/kreiderclib/ccdiv.as @ 3141:717ced83b885

coco3: Build SD card device descriptors for CoCo3FPGA Added "CC3FPGAFLAGS = $(AFLAGS) -DCC3FPGA=1 $(FLAGS)" to "level2/coco3/modules/makefile" for flagging Coco3FPGA specific features in modules sources. Added "llcoco3fpga", "ddsd0_coco3fpga", "sd0_coco3fpga", and "sd1_coco3fpga" to the "coco3/modules/makefile" - RBF section, which also now adds all to the "NITROS9/MODULES/RBF" on all disk images for building new Coco3FPGA disks from NitrOS9. Added new descriptor section to the "level2/coco3/modules/makefile" reflecting the new Coco3FPGA SD card descriptors and their flags.
author Bill Pierce <merlinious999@gmail.com>
date Sat, 04 Feb 2017 11:06:28 +0100
parents 1647f1874cdf
children
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* Disassembly by Os9disasm of ccdiv.r

 section code

ccudiv: subd  #0 
 beq   L000f 
 pshs  d 
 leas  -2,s 
 clr   ,s 
 clr   1,s 
 bra   L003d 
L000f puls  d 
 std   ,s 
 ldd   #$002d 
 lbra  _rpterr 
ccdiv: subd  #0 
 beq   L000f 
 pshs  d 
 leas  -2,s 
 clr   ,s 
 clr   1,s 
 tsta   
 bpl   L0031 
 nega   
 negb   
 sbca  #0 
 com   1,s 
 std   2,s 
L0031 ldd   6,s 
 bpl   L003d 
 nega   
 negb   
 sbca  #0 
 com   1,s 
 std   6,s 
L003d lda   #1 
L003f inca   
 asl   3,s 
 rol   2,s 
 bpl   L003f 
 sta   ,s 
 ldd   6,s 
 clr   6,s 
 clr   7,s 
L004e subd  2,s 
 bcc   L0058 
 addd  2,s 
 andcc #254 
 bra   L005a 
L0058 orcc  #1 
L005a rol   7,s 
 rol   6,s 
 lsr   2,s 
 ror   3,s 
 dec   ,s 
 bne   L004e 
 std   2,s 
 tst   1,s 
 beq   L0074 
 ldd   6,s 
 nega   
 negb   
 sbca  #0 
 std   6,s 
L0074 ldx   4,s 
 ldd   6,s 
 std   4,s 
 stx   6,s 
 ldx   2,s 
 ldd   4,s 
 leas  6,s 
 rts    

 endsect