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~ National ~ Semiconductor - Al Kossow's Bitsavers

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CD<br />

....<br />

II) 129<br />

acti vated: bit 4<br />

Z<br />

•<br />

130 rx_eol flag: bit 3<br />

CC 131 seladdr: hi ts 2-0<br />

132 GP7P - recei ved data<br />

133<br />

134 entry: DA interrupt, GPS', GP6'<br />

135 exit: ACC' ,GP7' ARE DESTROYED<br />

136<br />

137<br />

hi story: tiq 9/16/87 create<br />

;----------------------------_..... __ .._---_ ..._--_.._-------- ... __ ......._--------<br />

13B PUBLIC RCVRINT<br />

139<br />

140 EXTRN PARSE, QUEUE, I""EDECODE, RESXCVR<br />

141 EXTRN "!DERRL," !DERRH, OVFERRL, OVFERRH, PARERRL, PARERRH<br />

142 EXTRN RXERRL,RXERRH,RSPCTL,RSPCTH, BASESCP, IESERRL, IESERRH<br />

143<br />

144<br />

145 SELERR: EaU BIOI000000 ; select the error register<br />

146 mo": Eau BIOOOOI000 j rxeol flag<br />

147 EOM: EGU 8100000111 j EOM deli seter<br />

148 "ULTI : EaU 8111000000 ; lulticount<br />

149 SELECT: EQU BIIOOOOOOO j selected flag<br />

ISO LTA: EaU BII01 j<br />

151 CFLAS: EaU 8100000010 ; CARRY FLAG<br />

152<br />

00000 153 RCVRINT:<br />

154 EXX MA,AB,DI ; SET APPROPRIATE BANK<br />

00000 AEE8 154<br />

00001 DSOO 155 J"PF NS ,RERR, NOERROR<br />

00002 CCOO 156 CALL RXERROR ; ERROR IN FRAME<br />

00003 D900 157 J"PF S,C,EXIT ; ABORT<br />

00004 D900 158 HOERROR:<br />

00004 B078 159 LDI EOM,ACC ; LOAD "ASK<br />

160 AND TSR,SP7 ; FOR" ADDRESS<br />

00005 F16S 160<br />

161 C"P GP7,EO" ; TEST<br />

00006 307B 161<br />

00007 DOOO 162 J"PF NS,Z,CIRXINT ; IF NOT EQUAL, JUMP<br />

Addr<br />

Line RUNT<br />

00008 SOBA 163 ORI RXEO",SP6 ; ELSE SET EOM FLAG<br />

00009 CBOO 164 J"P C2RXlNT<br />

OOOOA CBOO 165 CIRXINT:<br />

OOOOA 4f7A 166 ANOI RXEO"*,GP6 j CLEAR IT<br />

167 j<br />

IbB j DECIDE IF WE'RE ALREADY SELECTED<br />

169 j<br />

OOOOB 170 C2RXINT:<br />

171 J"PB GP5,S,B7,DEVSELECT j IF ALREADY SELECTED<br />

OOOOB 8DE9 171<br />

OOOOC 0000 171<br />

172 j<br />

173 ; NOT SELECTED ... DECIDE IF ADDRESS IS ACTIVE, IE; VALID FOR US<br />

TLlF/9635-13<br />

2·216

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