--- /dev/null
+<PACKAGE "BITSGEN">
+
+<ENTRY BITLOG-GEN GETBITS-GEN PUTBITS-GEN BITS-GEN>
+
+<USE "CACS" "CODGEN" "COMCOD" "COMPDEC" "CHKDCL">
+
+<DEFINE BITLOG-GEN (N W
+ "AUX" (K <KIDS .N>) (REG <UPDATE-WHERE .N .W>) (FST <1 .K>)
+ (INS <LGINS <NODE-SUBR .N>>))
+ #DECL ((FST N) NODE (K) <LIST [REST NODE]> (REG) DATUM)
+ <COND (<==? <NODE-TYPE .FST> ,QUOTE-CODE>
+ <PUT .K 1 <2 .K>>
+ <PUT .K 2 .FST>)>
+ <SET REG <GEN <1 .K> .REG>>
+ <RET-TMP-AC <DATTYP .REG> .REG>
+ <PUT .REG
+ ,DATTYP
+ <COND (<ISTYPE? <RESULT-TYPE .N>>) (ELSE WORD)>>
+ <MAPF <>
+ <FUNCTION (NN "AUX" (NXT <GEN .NN DONT-CARE>) TT)
+ #DECL ((NN) NODE (NXT) DATUM)
+ <COND (<TYPE? <DATVAL .REG> AC>)
+ (<TYPE? <SET TT <DATVAL .NXT>> AC>
+ <PUT .NXT ,DATVAL <DATVAL .REG>>
+ <PUT .REG ,DATVAL .TT>
+ <FIX-ACLINK .TT .REG .NXT>)
+ (ELSE <TOACV .REG>)>
+ <PUT <SET TT <DATVAL .REG>> ,ACPROT T>
+ <MUNG-AC .TT .REG>
+ <IMCHK .INS <ACSYM .TT> <DATVAL .NXT> T>
+ <PUT .TT ,ACPROT <>>
+ <RET-TMP-AC .NXT>>
+ <REST .K>>
+ <MOVE:ARG .REG .W>>
+
+<DEFINE LGINS (SUBR)
+ <NTH '![(`AND `ANDI `ANDCMI )
+ (`IOR `IORI `ORCMI )
+ (`XOR `XORI )
+ (`EQV `EQVI )!]
+ <LENGTH <MEMQ .SUBR ,LSUBRS>>>>
+
+<SETG LSUBRS ![,EQVB ,XORB ,ORB ,ANDB!]>
+
+<DEFINE GETBITS-GEN (N W
+ "AUX" (WRDN <1 <KIDS .N>>) (BP <2 <KIDS .N>>) REG POS WDTH
+ BAC AC BPW WRD BPD TEM)
+ #DECL ((WRDN N BP) NODE (POS WDTH) FIX (WRD REG BPD) DATUM (AC BAC) AC
+ (BPW) <PRIMTYPE WORD>)
+ <COND
+ (<==? <NODE-TYPE .BP> ,QUOTE-CODE>
+ <SET WRD <GEN .WRDN DONT-CARE>>
+ <SET BPW <NODE-NAME .BP>>
+ <SET POS <CHTYPE <GETBITS .BPW #BITS *360600000000*> FIX>>
+ <SET WDTH <CHTYPE <GETBITS .BPW #BITS *300600000000*> FIX>>
+ <COND
+ (<AND <==? <+ .POS .WDTH> 36>
+ <N==? .WDTH 18>
+ <TYPE? <DATVAL .WRD> AC>
+ <NOT <ACRESIDUE <SET AC <DATVAL .WRD>>>>
+ <OR <==? .W DONT-CARE>
+ <AND <TYPE? .W DATUM> <==? .AC <DATVAL .WRD>>>>>
+ <MUNG-AC .AC <SET REG .WRD>>
+ <EMIT <INSTRUCTION `LSH <ACSYM .AC> <- .POS>>>)
+ (ELSE
+ <PUT <SGETREG <SET AC <DATVAL <SET REG <REG? WORD .W T>>>> .REG>
+ ,ACPROT
+ T>
+ <COND (<AND <==? .WDTH 18> ;"Could be half word hack."
+ <COND (<0? .POS>
+ <EMIT <INSTRUCTION `HRRZ
+ <ACSYM .AC>
+ !<ADDR:VALUE .WRD>>>
+ T)
+ (<==? .POS 18>
+ <EMIT <INSTRUCTION `HLRZ
+ <ACSYM .AC>
+ !<ADDR:VALUE .WRD>>>
+ T)>>)
+ (ELSE
+ <EMIT <INSTRUCTION `LDB
+ <ACSYM .AC>
+ [<FORM <CHTYPE .BPW OPCODE!-OP!-PACKAGE>
+ !<ADDR:VALUE .WRD>>]>>)>
+ <PUT .AC ,ACPROT <>>
+ <RET-TMP-AC .WRD>)>)
+ (<==? <NODE-TYPE .BP> ,BITS-CODE>
+ <SET WRD
+ <GEN .WRDN
+ <COND (<SIDE-EFFECTS .BP> <DATUM WORD ANY-AC>)
+ (ELSE DONT-CARE)>>>
+ <SET BPD
+ <1 <SET TEM <RBITS-GEN .BP <DATUM BITS ANY-AC> .WRD>>>>
+ <PUT <SGETREG <SET AC <DATVAL <SET REG <REG? WORD .W T>>>> .REG>
+ ,ACPROT
+ T>
+ <TOACV .BPD>
+ <PUT <SET BAC <DATVAL .BPD>> ,ACPROT T>
+ <SET TEM <2 .TEM>>
+ <PUT .TEM 1 <1 <ADDR:VALUE .WRD>>>
+ <PUTREST .TEM <REST <ADDR:VALUE .WRD>>>
+ <EMIT <INSTRUCTION `LDB <ACSYM .AC> <ADDRSYM .BAC>>>
+ <PUT .BAC ,ACPROT <>>
+ <PUT .AC ,ACPROT <>>
+ <RET-TMP-AC .WRD>
+ <RET-TMP-AC .BPD>)
+ (ELSE ;"Non constant byte pointer."
+ <SET WRD
+ <GEN .WRDN
+ <COND (<SIDE-EFFECTS .BP> <DATUM WORD ANY-AC>)
+ (ELSE DONT-CARE)>>>
+ <SET BPD <GEN .BP DONT-CARE>>
+ <PUT <SGETREG <SET AC <DATVAL <SET REG <REG? WORD .W T>>>> .REG>
+ ,ACPROT
+ T>
+ <SET BPD <MOVE:ARG .BPD <DATUM BITS ANY-AC>>>
+ <PUT <SET BAC <DATVAL .BPD>> ,ACPROT T>
+ <MUNG-AC .BAC .BPD>
+ <EMIT <INSTRUCTION `HRRI <ACSYM .BAC> !<ADDR:VALUE .WRD>>>
+ <EMIT <INSTRUCTION `LDB <ACSYM .AC> <ADDRSYM .BAC>>>
+ <PUT .BAC ,ACPROT <>>
+ <PUT .AC ,ACPROT <>>
+ <RET-TMP-AC .WRD>
+ <RET-TMP-AC .BPD>)>
+ <MOVE:ARG .REG .W>>
+
+<DEFINE PUTBITS-GEN (N W
+ "AUX" (K <KIDS .N>) (SWRD <1 .K>) (BP <2 .K>) BAC POS WDTH
+ FLD BPW BPD SWRDD (FLG T) TEM NUM)
+ #DECL ((N SWRD BP) NODE (FLD BPD REG SWRDD) DATUM (AC BAC PAC) AC
+ (POS WDTH) FIX (BPW) <PRIMTYPE WORD> (NUM) <OR FALSE FIX>)
+ <COND
+ (<==? <NODE-TYPE .BP> ,QUOTE-CODE>
+ <SET POS
+ <CHTYPE <GETBITS <SET BPW <NODE-NAME .BP>> #BITS *360600000000*> FIX>>
+ <SET WDTH <CHTYPE <GETBITS .BPW #BITS *300600000000*> FIX>>
+ <COND
+ (<AND <==? <NODE-TYPE .SWRD> ,QUOTE-CODE>
+ <0? <CHTYPE <NODE-NAME .SWRD> FIX>>>
+ <SET SWRDD <GEN <3 .K> <REG? <RESULT-TYPE .SWRD> .W>>>
+ <MUNG-AC <DATVAL .SWRDD> .SWRDD>
+ <COND (<L? <+ .POS .WDTH> 36>
+ <IMCHK '(`AND `ANDI )
+ <ACSYM <DATVAL .SWRDD>>
+ <REFERENCE:ADR <GETBITS -1 <BITS .WDTH>>>>)>
+ <EMIT <INSTRUCTION `LSH <ACSYM <DATVAL .SWRDD>> .POS>>)
+ (ELSE
+ <SET SWRDD
+ <GEN .SWRD
+ <REG? <COND (<ISTYPE? <RESULT-TYPE .SWRD>>) (ELSE TUPLE)> .W>>>
+ <MUNG-AC <DATVAL .SWRDD> .SWRDD>
+ <COND
+ (<AND
+ <==? .WDTH 18>
+ <COND
+ (<0? .POS>
+ <COND (<AND <SET NUM <ZERQ .K>> <OR <L=? .NUM 0> <G=? .NUM 262143>>>
+ <EMIT <INSTRUCTION <COND (<0? .NUM> `HLLZS ) (ELSE `HLLOS )>
+ <ADDRSYM <DATVAL .SWRDD>>>>)
+ (ELSE <PCLOB .SWRDD '(`HRR `HRRI ) <3 .K>>)>)
+ (<==? .POS 18>
+ <COND (<AND <SET NUM <ZERQ .K>> <OR <L=? .NUM 0> <G=? .NUM 262143>>>
+ <EMIT <INSTRUCTION <COND (<0? .NUM> `HRRZS ) (ELSE `HRROS )>
+ <ADDRSYM <DATVAL .SWRDD>>>>)
+ (ELSE <PCLOB .SWRDD '(`HRL `HRLI ) <3 .K>>)>
+ T)>>)
+ (<AND <OR <AND <L? .POS 18> <L=? <+ .POS .WDTH> 18>> <G? .POS 18>>
+ <SET NUM <ZERQ .K>>
+ <OR <0? .NUM> <L? .WDTH <POPWR2 <+ .NUM 1>>>>>
+ <EMIT <INSTRUCTION <COND (<0? .NUM>
+ <COND (<L? .POS 18> `ANDCMI ) (ELSE `TLZ )>)
+ (ELSE
+ <COND (<L? .POS 18> `IORI ) (ELSE `TLO )>)>
+ <ACSYM <DATVAL .SWRDD>>
+ <LSH <LSH -1 <- .WDTH 36>>
+ <COND (<L? .POS 18> .POS)
+ (ELSE <- .POS 18>)>>>>)
+ (ELSE
+ <SET FLD <GEN <3 .K> <DATUM WORD ANY-AC>>>
+ <PUT <DATVAL .FLD> ,ACPROT T>
+ <TOACV .SWRDD>
+ <PUT <DATVAL .SWRDD> ,ACPROT T>
+ <EMIT <INSTRUCTION `DPB
+ <ACSYM <DATVAL .FLD>>
+ [<FORM <CHTYPE .BPW OPCODE!-OP!-PACKAGE>
+ <ADDRSYM <DATVAL .SWRDD>>>]>>
+ <PUT <DATVAL .FLD> ,ACPROT <>>
+ <PUT <DATVAL .SWRDD> ,ACPROT <>>
+ <RET-TMP-AC .FLD>)>)>)
+ (ELSE
+ <COND (<NOT <AND <NOT <SIDE-EFFECTS .N>> <MEMQ <NODE-TYPE .SWRD> ,SNODES>>>
+ <SET SWRDD
+ <GEN .SWRD
+ <REG? <COND (<ISTYPE? <RESULT-TYPE .SWRD>>) (ELSE TUPLE)>
+ .W>>>)>
+ <PREFER-DATUM .W>
+ <SET BPD
+ <COND (<==? <NODE-TYPE .BP> ,BITS-CODE>
+ <SET FLG <>>
+ <1 <SET TEM
+ <RBITS-GEN .BP
+ <DATUM BITS ANY-AC>
+ <COND (<ASSIGNED? SWRDD> .SWRDD)
+ (ELSE ,NO-DATUM)>>>>)
+ (ELSE <GEN .BP DONT-CARE>)>>
+ <PREFER-DATUM .W>
+ <COND (<SET NUM <ZERQ .K>>
+ <SET FLD <MOVE:ARG <REFERENCE .NUM> <DATUM WORD ANY-AC>>>)
+ (ELSE <SET FLD <GEN <3 .K> <DATUM WORD ANY-AC>>>)>
+ <DATTYP-FLUSH .FLD>
+ <PUT .FLD ,DATTYP WORD>
+ <COND (<NOT <ASSIGNED? SWRDD>>
+ <SET SWRDD
+ <GEN .SWRD
+ <REG? <COND (<ISTYPE? <RESULT-TYPE .SWRD>>) (ELSE TUPLE)>
+ .W>>>)>
+ <COND (<NOT <TYPE? <DATVAL .SWRDD> AC>>
+ <SET SWRDD
+ <MOVE:ARG
+ .SWRDD
+ <REG? <COND (<ISTYPE? <RESULT-TYPE .SWRD>>) (ELSE TUPLE)>
+ .W>>>)>
+ <PUT <DATVAL .SWRDD> ,ACPROT T>
+ <TOACV .FLD>
+ <PUT <DATVAL .FLD> ,ACPROT T>
+ <TOACV .BPD>
+ <PUT <SET BAC <DATVAL .BPD>> ,ACPROT T>
+ <COND (<NOT .FLG>
+ <PUT <2 .TEM> 1 <ADDRSYM <DATVAL .SWRDD>>>
+ <PUTREST <2 .TEM> ()>)>
+ <MUNG-AC <DATVAL .SWRDD> .SWRDD>
+ <COND (.FLG
+ <MUNG-AC .BAC .BPD>
+ <EMIT <INSTRUCTION `HRRI <ACSYM .BAC> <ADDRSYM <DATVAL .SWRDD>>>>)>
+ <EMIT <INSTRUCTION `DPB <ACSYM <DATVAL .FLD>> <ADDRSYM .BAC>>>
+ <PUT .BAC ,ACPROT <>>
+ <PUT <DATVAL .SWRDD> ,ACPROT <>>
+ <PUT <DATVAL .FLD> ,ACPROT <>>
+ <RET-TMP-AC .BPD>
+ <RET-TMP-AC .FLD>)>
+ <MOVE:ARG .SWRDD .W>>
+
+<DEFINE ZERQ (L "AUX" NUM)
+ #DECL ((L) <LIST [REST NODE]>)
+ <COND (<==? <LENGTH .L> 2>)
+ (<AND <==? <NODE-TYPE <SET NUM <3 .L>>> ,QUOTE-CODE>
+ <==? <PRIMTYPE <SET NUM <NODE-NAME .NUM>>> WORD>
+ <OR <AND <0? <SET NUM <CHTYPE .NUM FIX>>> 0>
+ <AND <POPWR2 <+ .NUM 1>> .NUM>>>)>>
+
+<DEFINE PCLOB (DEST INS SRC "AUX" SRCD)
+ #DECL ((DEST SRCD) DATUM (SRC) NODE)
+ <SET SRCD <GEN .SRC DONT-CARE>>
+ <TOACV .DEST>
+ <PUT <DATVAL .DEST> ,ACPROT T>
+ <IMCHK .INS <ACSYM <DATVAL .DEST>> <DATVAL .SRCD>>
+ <PUT <DATVAL .DEST> ,ACPROT <>>
+ <RET-TMP-AC .SRCD>>
+
+<DEFINE BITS-GEN (N W) <1 <RBITS-GEN .N .W DONT-CARE>>>
+
+<DEFINE RBITS-GEN (N W ADDR
+ "AUX" (K <KIDS .N>) (WDTHN <1 .K>) WDTH POS TEM
+ (REG <REG? WORD .W>) POSD (FLG T))
+ #DECL ((POS N WDTHN) NODE (REG WDTH POSD) DATUM (K) <LIST [REST NODE]>)
+ <COND (<==? <LENGTH .K> 2> <SET POS <2 .K>>)>
+ <COND
+ (<==? <NODE-TYPE .WDTHN> ,QUOTE-CODE>
+ <SET TEM <MAKE-PTR .ADDR T <NODE-NAME .WDTHN>>>)
+ (<OR <NOT <ASSIGNED? POS>>
+ <==? <NODE-TYPE .POS> ,QUOTE-CODE>>
+ <SET TEM
+ <MAKE-PTR .ADDR
+ <>
+ <COND (<ASSIGNED? POS> <NODE-NAME .POS>) (ELSE 0)>>>
+ <SET POS .WDTHN>
+ <SET FLG <>>)
+ (ELSE
+ <SET WDTH <GEN .WDTHN .REG>>
+ <MUNG-AC <DATVAL .REG> .REG>
+ <EMIT <INSTRUCTION `LSH <ACSYM <DATVAL .REG>> 24>>
+ <COND (<TYPE? .ADDR DATUM>
+ <EMIT <SET TEM <INSTRUCTION `HRRI <ACSYM <DATVAL .REG>> 0>>>
+ <SET TEM <REST .TEM 2>>)
+ (ELSE <SET TEM '(0)>)>)>
+ <SET POSD <GEN .POS <DATUM WORD ANY-AC>>>
+ <PUT <DATVAL .POSD> ,ACPROT T>
+ <COND (<NOT <ASSIGNED? WDTH>>
+ <SET WDTH <DATUM WORD ANY-AC>>
+ <PUT .WDTH ,DATVAL <GETREG .WDTH>>
+ <EMIT <INSTRUCTION `MOVE <ACSYM <DATVAL .WDTH>> .TEM>>
+ <SET TEM <REST <1 .TEM>>>)
+ (ELSE <TOACV .WDTH>)>
+ <PUT <DATVAL .WDTH> ,ACPROT T>
+ <EMIT <INSTRUCTION `DPB
+ <ACSYM <DATVAL .POSD>>
+ [<FORM (<COND (.FLG 123264) (ELSE 98688)>)
+ <ADDRSYM <DATVAL .WDTH>>>]>>
+ <PUT <DATVAL .WDTH> ,ACPROT <>>
+ <PUT <DATVAL .POSD> ,ACPROT <>>
+ <RET-TMP-AC .POSD>
+ <COND (<TYPE? <DATTYP .WDTH> AC>
+ <RET-TMP-AC <DATTYP .WDTH> .WDTH>)>
+ <PUT .WDTH ,DATTYP BITS>
+ [<MOVE:ARG .WDTH .W> .TEM]>
+
+<DEFINE MAKE-PTR (AD W-P CNST "AUX" (BP <BITS 6 <COND (.W-P 24) (ELSE 30)>>))
+ #DECL ((CNST) FIX)
+ <COND (<TYPE? .AD DATUM>
+ [<FORM (<GETBITS <PUTBITS 0 .BP .CNST> <BITS 18 18>>) HERE>])
+ (ELSE
+ [<FORM (<GETBITS <PUTBITS 0 .BP .CNST> <BITS 18 18>>) 0>])>>
+\f
+<ENDPACKAGE>
projects / pdp10-muddle.git / blobdiff