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52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
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/*
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File: CUtils.h
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Contains: header stuff for various C utility stuff
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Notes: In-line assembly for atomic bit operations
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Written by: Paul Wolf
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Copyright: © 1992-1993 by Apple Computer, Inc., all rights reserved.
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Change History (most recent first):
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<SM7> 11/22/93 pdw Added disassembly comment.
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<SMG2> 9/29/93 chp Fix up header and standardize conditional inclusion.
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<SM5> 10/14/93 pdw <MC> roll-in.
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<MC2> 10/12/93 pdw Added support for Synchronous data transfers, rewrote State
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Machine, message handling etc.
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<SM4> 5/5/93 PW Converted names to meanies-friendly names. Updated with latest
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from Ludwig stuff.
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<SM3> 1/31/93 PW Update from the latest of Ludwig. Also changes required for PDM
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(will update Ludwig with these as needed myself).
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<SM2> 11/20/92 DCB Removed include of types.h
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*/
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#ifndef __CUTILS__
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#define __CUTILS__
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#ifndef __TYPES__
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#include <Types.h>
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#endif
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#pragma parameter __D0 bset(__D0,__A0)
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Boolean bset(unsigned short bitNum, unsigned char * byte) = {0x01d0,0x56c0};
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// bset sne D0
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#pragma parameter __D0 bclr(__D0,__A0)
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Boolean bclr(unsigned short bitNum, unsigned char * byte) = {0x0190,0x56c0};
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#pragma parameter __D0 btst(__D0,__A0)
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Boolean btst(unsigned short bitNum, unsigned char * byte) = {0x0110,0x56c0};
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#define btst32(bit,addr) ( btst( (bit)%8, ((char *)(addr))+32-((bit)/4)) )
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#define MAX(a,b) ((a)>(b)?(a):(b))
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#define MIN(a,b) ((a)<(b)?(a):(b))
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#endif __CUTILS__
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