;MACROS -------------------------------------------------------------------------- ; Port r[a | b | c | d | e] [in | out | pull | float | cmos | ttl] bits ; sets the port mode and configuration for standard pins in EQU $F00 out EQU $FFF pull EQU $E00 float EQU $EFF cmos EQU $D00 ttl EQU $DFF sch EQU $CFF inten EQU $B00 intedge EQU $A00 intpend EQU $900 porthelp MACRO ERROR 'USAGE: port r[a,b,c,d,e] [in,out,pull,float,cmos,ttl] bits' ENDM _PortMode = $1F PortMode MACRO 1 noexpand ; IF _PortMode <> \1 ;can't do this if you don't know how you got to this code. IF CpuPins > 28 _PortMode = \1 | $10 expand mov w,#_PortMode mov m,w noexpand ELSE _PortMode = \1 expand mov m,#_PortMode noexpand ENDIF ; ENDIF ENDM port MACRO port, mode, mask noexpand IF (port==ra) || (port==rb) ELSE IF (CpuPins > 18) && (port==rc) ) ELSE IF (CpuPins > 28) && ((port==rd) || (port==re)) ) ELSE porthelp ENDIF ENDIF ENDIF IF port==RB && ((?mode=='sch') || (?mode=='inten') || (?mode=='intedge') || (?mode=='intpend')) ELSE IF (?mode=='in') || (?mode=='out') || (?mode=='pull') || (?mode=='float') || (?mode=='cmos') || (?mode=='ttl') ELSE porthelp ENDIF ENDIF PortMode (mode / $100) expand mov !port, #(mode//$100)^mask noexpand ENDM
| file: /techref/scenix/sasmport.src, 1KB, , updated: 2002/8/13 14:09, local time: 2008/12/5 01:39,
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