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view lib/kreiderclib/htoi.as @ 3140:03b580a02945

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Allow CoCo3FPGA-specific build of superdesc.asm Added new conditional CC3FPGA and code to "level1/modules/superdesc.asm" to reflect changes needed to build the new SD card descriptors for the Coco3FPGA.
author Bill Pierce <merlinious999@gmail.com>
date Sat, 04 Feb 2017 11:06:26 +0100
parents 1647f1874cdf
children
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* Disassembly by Os9disasm of htoi.r

 section code

htoi: clra   
 clrb   
 pshs  d,u 
 ldu   6,s 
 leax  _chcodes,y 
L000a ldb   ,u 
 cmpb  #$20 
 beq   L0014 
 cmpb  #9 
 bne   L003b 
L0014 leau  1,u 
 bra   L000a 
L0018 ldd   ,s 
 lslb   
 rola   
 lslb   
 rola   
 lslb   
 rola   
 lslb   
 rola   
 std   ,s 
 ldb   ,u+ 
 subb  #$30 
 cmpb  #9 
 ble   L0034 
 subb  #7 
 cmpb  #$0f 
 ble   L0034 
 subb  #$20 
L0034 clra   
 addd  ,s 
 std   ,s 
 ldb   ,u 
L003b ldb   b,x 
 andb  #$40 
 bne   L0018 
 puls  d,u,pc 

 endsect