Mercurial > hg > Members > kono > nitros9-code
view lib/alib/bin_asc.a @ 2765:0bd16cca86b7
Updated rules.mak for all the os9 format's to format the entire disk. People were having some issues with the disk images not being formatted to their full capacity and preventing some functions from working.
author | drencor-xeen |
---|---|
date | Thu, 17 Jan 2013 11:03:26 -0600 |
parents | 7d70b7e1cb21 |
children | aaba193af04f |
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****************************************** * Binary word to ASCII string conversion * OTHER MODULES NEEDED: none * ENTRY: D = binary value * X = buffer for 16 bit number * EXIT: all registers (except cc) preserved nam Convert # to Ascii String ttl Assembler Library Module psect BIN_ASC,0,0,0,0,0 BIN_ASC: pshs a,b,x save registers pshs a,b save data again ldb #16 total bits to convert andcc #%11111110 clear CARRY to start binas1 lda #'0 get ASCII 0 rol 1,S get hi bit in LSB to carry rol ,S and into MSB; is it 1 or 0? bcc binas2 0, skip inca get ASCII 1 binas2 sta ,x+ put it in the buffer decb done all bits? bne binas1 no, loop clr ,x mark end of string leas 2,s clean up puls a,b,x,pc restore & return endsect