TITLE < Z80 fig-FORTH 1.1 g >
SUBTTL Adaptive version by EHR
;
;
; Modified frm FIG document keyed by Dennis L. Wilson 800907
; Converted frm "8080 FIG-FORTH VERSION A0 15SEP79"
;
; fig-FORTH release 1.1 for the 8080 processor.
;
; ALL PUBLICATIONS OF THE FORTH INTEREST GROUP
; ARE PUBLIC DOMAIN. THEY MAY BE FURTHER
; DISTRIBUTED BY THE INCLUSION OF THIS CREDIT NOTICE:
;
; This publication has been made available by the
; Forth Interest Group
; P.O.Box 1105
; San Carlos, CA 94070
; U.S.A.
;
; Implementation on 8080 by:
; John Cassady
; 339 15th Street
; Oakland, CA 94612
; U.S.A
; on 790528
; Modified by:
; Kim Harris
; Acknowledgements:
; George Flammer
; Robt. D. Villwock
; ----------------------------------------------------------------------
; Z80 Version for Cromemco CDOS & Digital Research CP/M by:
; Dennis Lee Wilson c/o
; Aristotelian Logicians
; 2631 East Pinchot Avenue
; Phoenix, AZ 85016
; U.S.A.
; ----------------------------------------------------------------------
; The 2 byte Z80 code for Jump Relative (JR) has been substituted for
; the 3 byte Jump (JP) wherever practical. The port I/O words P@ & P!
; have been made ROMable by use of Z80 instructions.
; ----------------------------------------------------------------------
; Further modifications (marked ;/) by:
; Edmund Ramm
; Anderheitsallee 24
; 2000 Hamburg 71
; Fed. Rep. of Germany 840418
; ----------------------------------------------------------------------
; Disc I/O has been modified a la Albert van der Horst (HCCH) to employ
; CP/M 2.x's random access feature.
; ----------------------------------------------------------------------
;
; Release & Version numbers
;
FIGREL EQU 1 ;FIG RELEASE #
FIGREV EQU 1 ;FIG REVISION #
USRVER EQU 67H ;USER VERSION # g by DLW/EHR/AvdH
;
;Console & printer drivers are in external source named
;CONPRTIO.FTH & disc drivers in DISCIO.FTH. It has 4 screen
;buffers & end of memory is set to FBASE from locn. 0007H.
FORM
; ASCII characters used
;
ABL EQU 20H ;BLANK
ACR EQU 0DH ;CR
ADOT EQU 2EH ;.
BELL EQU 07H ;^G
BSIN EQU 08H ;backspace chr = ^H
BSOUT EQU 08H
DLE EQU 10H ;^P
LF EQU 0AH ;^J
FF EQU 0CH ;^L
;
; Memory allocation
;
BDOSS EQU 0005H ;/ system entry
NSCR EQU 4 ; # of 1024 byte screens
KBBUF EQU 128 ; bytes/disc buffer
US EQU 40H ; user variables space
RTS EQU 400H ; Return Stack & term buff space
CO EQU KBBUF+4 ; Disc buff + 2 header + 2 tail
NBUF EQU NSCR*400H/KBBUF ; # of buffers
BUFSIZ EQU CO*NBUF ;/ total disc buffer size
FORM
ABS
;
ORG 0100H
ORIG: NOP
JP CLD ;VECTOR TO COLD START
NOP
JP WRM ;VECTOR TO WARM START
DEFB FIGREL ;FIG RELEASE #
DEFB FIGREV ;FIG REVISION #
DEFB USRVER ;USER VERSION #
DEFB 0EH ;IMPLEMENTATION ATTRIBUTES
;
;
;
; 0EH = 0000:1110
; ---------
; B +ORIGIN ...W:IEBA
;
; W: 0=above sufficient
; 1=other differences exist
; I: Interpreter is 0=pre-
; 1=post incrementing
; E: Addr must be even: 0 yes
; 1 no
; B: High byte @ 0=low addr.
; 1=high addr.
; A: CPU Addr. 0=BYTE
; 1=WORD
;
;
;
DEFW TASK-7 ; TOPMOST WORD IN FORTH VOCABULARY
DEFW BSIN ; BACKSPACE CHR
UPINIT: DEFW 0 ;/ INIT (UP)
;
; * FOLLOWING USED BY COLD; MUST BE IN SAME ORDER AS USER VARIABLES *
;
S0INIT: DEFW 0 ;/ INIT (S0)
R0INIT: DEFW 0 ;/ INIT (R0)
TIBINI: DEFW 0 ;/ INIT (TIB)
DEFW 1FH ; INIT (WIDTH)
DEFW 0 ; INIT (WARNING)
DEFW INITDP ; INIT (FENCE)
DEFW INITDP ; INIT (DP)
DEFW FORTH+8 ; INIT (VOC-LINK)
;
; * END DATA USED BY COLD *
;
DEFW 0H,0B250H ;Z80 CPU NAME (HW,LW)
;(32 BIT BASE 36 INTEGER)
FORM
; REGISTERS
;
; FORTH Z80 FORTH PRESERVATION RULES
; ----- --- -----------------------
; IP BC should be preserved
; accross FORTH words.
; W DE sometimes output from
; NEXT, may be altered
; b4 JP'ing to NEXT,
; input only when
; "DPUSH" called.
; SP SP should be used only as
; Data Stack accross
; FORTH words, may be
; used within FORTH
; words if restored
; b4 "NEXT"
; HL Never output frm NEXT
; input only when
; "HPUSH" called
;
;
UP: DEFW 0 ;/ USER AREA PTR
RPP: DEFW 0 ;/ RETURN STACK PTR
BUF1: DEFW 0 ;/ address of 1st disc buffer
;
;
; COMMENT CONVENTIONS:
;
; = MEANS "IS EQUAL TO"
; <-- MEANS ASSIGNMENT
; NAME = ADDR OF NAME
; (NAME) = CONTENTS @ NAME
; ((NAME))= INDIRECT CONTENTS
; CFA = CODE FIELD ADDR
; LFA = LINK FIELD ADDR
; NFA = NAME FIELD ADDR
; PFA = PARAMETER FIELD ADDR
; S1 = ADDR OF 1st WORD OF PARAMETER STACK
; S2 = -"- OF 2nd -"- OF -"- -"-
; R1 = -"- OF 1st -"- OF RETURN STACK
; R2 = -"- OF 2nd -"- OF -"- -"-
; ( above Stack posn. valid b4 & after execution of any word, not during)
;
; LSB = LEAST SIGNIFICANT BIT
; MSB = MOST SIGNIFICANT BIT
; LB = LOW BYTE
; HB = HIGH BYTE
; LW = LOW WORD
; HW = HIGH WORD
; (May be used as suffix to above names)
FORM
; FORTH ADDRESS INTERPRETER
; POST INCREMENTING VERSION
;
DPUSH: PUSH DE
HPUSH: PUSH HL ; IY points here
NEXT: LD A,(BC) ;(W)<--((IP)) IX points here
LD L,A
INC BC ;INC IP
LD A,(BC)
LD H,A ;(HL)<--CFA
INC BC ;INC IP
NEXT1: LD E,(HL) ;(PC)<--((W))
INC HL
LD D,(HL)
EX DE,HL
JP (HL) ;NOTE: (DE)=CFA+1
;
JNEXT MACRO
JP (IX)
ENDM
;
JHPUSH MACRO
JP (IY)
ENDM
FORM
; FORTH DICTIONARY
; DICTIONARY FORMAT:
;
; BYTE
; ADDRESS NAME CONTENTS
; ------- ---- --------
; (MSB=1
; (P=PRECEDENCE BIT
; (S=SMUDGE BIT
; NFA NAME FIELD 1PS<LEN> <NAME LENGTH
; 0<1CHAR> MSB=0, NAME'S 1st CHAR
; 0<2CHAR>
; ...
; 1<LCHAR> MSB=1, NAME'S LAST CHAR
; LFA LINK FIELD <LINKLB> =PREVIOUS WORD'S NFA
; <LINKHB>
;LABEL: CFA CODE FIELD <CODELB> =ADDR CPU CODE
; <CODEHB>
; PFA PARAMETER <1PARAM> 1st PARAMETER BYTE
; FIELD <2PARAM>
; ...
;
;
;
DP0: DEFB 83H ;LIT
DM 'LIT'
DEFW 0 ;(LFA)=0 MARKS END OF DICTIONARY
LIT: DEFW $+2 ;(S1)<--((IP))
LD A,(BC) ;(HL)<--((IP))=LITERAL
INC BC ;(IP)<--(IP)+2
LD L,A ;LB
LD A,(BC) ;HB
INC BC
LD H,A
JHPUSH ;(S1)<--(HL)
;
DEFB 87H ;EXECUTE
DM 'EXECUTE'
DEFW LIT-6
EXEC: DEFW $+2
POP HL
JP NEXT1
;
DEFB 86H ;BRANCH
DM 'BRANCH'
DEFW EXEC-0AH
BRAN: DEFW $+2 ;(IP)<--(IP)+((IP))
BRAN1: LD H,B ;(HL)<--(IP)
LD L,C
LD E,(HL) ;(DE)<--((IP))=BRANCH OFFSET
INC HL
LD D,(HL)
DEC HL
ADD HL,DE ;(HL)<--(HL)+((IP))
LD C,L ;(IP)<--(HL)
LD B,H
JNEXT
;
DEFB 87H ;0BRANCH
DM '0BRANCH'
DEFW BRAN-9
ZBRAN: DEFW $+2
POP HL
LD A,L
OR H
JR Z,BRAN1 ;IF (S1)=0 THEN BRANCH
INC BC ;ELSE SKIP BRANCH OFFSET
INC BC
JNEXT
;
DEFB 86H ;(LOOP)
DM '(LOOP)'
DEFW ZBRAN-0AH
XLOOP: DEFW $+2
LD HL,(RPP) ; ((HL))=INDEX=(R1)
inc (hl) ;/ index(lb) += 1
LD E,(HL) ;/
INC HL ;/ (hl)-->index(hb)
jr nz,xloop1 ;/ jump if ((hl)) < 256
inc (hl) ;/ else index(hb) += 1
xloop1: LD D,(HL) ;/ (DE)<-- new INDEX
INC HL ;/ ((HL))=LIMIT
LD A,E
SUB (HL)
LD A,D
INC HL
SBC A,(HL) ; INDEX<LIMIT?
JP M,BRAN1 ; YES, LOOP AGAIN
INC HL ; NO, DONE
LD (RPP),HL ; DISCARD R1 & R2
INC BC
INC BC ; SKIP BRANCH OFFSET
JNEXT
;
DEFB 87H ;(+LOOP)
DM '(+LOOP)'
DEFW XLOOP-9
XPLOO: DEFW $+2
POP DE ;(DE)<--INCR
LD HL,(RPP) ;((HL))=INDEX
LD A,(HL) ;INDEX<--INDEX+INCR
ADD A,E
LD (HL),A
LD E,A
INC HL
LD A,(HL)
ADC A,D
LD (HL),A
INC HL ;((HL))=LIMIT
INC D
DEC D
LD D,A ;(DE)<--NEW INDEX
JP M,XLOO2 ;IF INCR>0
LD A,E
SUB (HL) ;THEN (A)<--INDEX - LIMIT
LD A,D
INC HL
SBC A,(HL)
JP XLOO3
XLOO2: LD A,(HL) ;ELSE (A)<--LIMIT - INDEX
SUB E
INC HL
LD A,(HL)
SBC A,D
; ;IF (A)<0
XLOO3: JP M,BRAN1 ;THEN LOOP AGN
INC HL ;ELSE DONE
LD (RPP),HL ;DISCARD R1 & R2
INC BC ;SKIP BRANCH OFFSET
INC BC
JNEXT
;
DEFB 84H ; (DO)
DM '(DO)'
DEFW XPLOO-0AH
XDO: DEFW $+2
EXX ;/ SAVE IP
POP DE ; (DE)<--INITIAL INDEX
POP BC ;/ (BC)<--LIMIT
LD HL,(RPP) ; (HL)<--(RP)
DEC HL
LD (HL),B
DEC HL
LD (HL),C ;/ (R2)<--LIMIT
DEC HL
LD (HL),D
DEC HL
LD (HL),E ; (R1)<--INITIAL INDEX
LD (RPP),HL ; (RP)<--(RP)-4
EXX ;/ RESTORE IP
JNEXT
;
DEFB 81H ;I
DM 'I'
DEFW XDO-7
IDO: DEFW $+2 ;(S1)<--(R1), (R1) UNCHANGED
LD HL,(RPP)
LD E,(HL) ;(DE)<--(R1)
INC HL
LD D,(HL)
PUSH DE ;(S1)<--(DE)
JNEXT
;
DEFB 85H ;DIGIT
DM 'DIGIT'
DEFW IDO-4
DIGIT: DEFW $+2
POP HL ;(L)<--(S1)LB = BASE VALUE
POP DE ;(E)<--(S2)LB = ASCII CHR TO BE CONVERTED
LD A,E ;ACCU<--CHR
SUB '0' ;>=0?
JR C,DIGI2 ;/ <0 IS INVALID
CP 0AH ;>9?
JR C,DIGI1 ;/ NO, TEST BASE VALUE
SUB 07H ;GAP BETWEEN "9" & "A", NW "A"=0AH
CP 0AH ;>="A"?
JR C,DIGI2 ;/ CHRs BETWEEN "9" & "A" ARE INVALID
DIGI1: CP L ;<BASE VALUE?
JR NC,DIGI2 ;/ NO, INVALID
LD E,A ;(S2)<--(DE) = CONVERTED DIGIT
LD HL,0001H ;(S1)<--TRUE
JP DPUSH
DIGI2: LD L,H ;(HL)<--FALSE
JHPUSH ;(S1)<--FALSE
;
DEFB 86H ;(FIND) (2-1)FAILURE
DM '(FIND)' ; (2-3)SUCCESS
DEFW DIGIT-8
PFIND: DEFW $+2
POP DE ;(DE)<--NFA
PFIN1: POP HL ;(HL)<--STRING ADDR
PUSH HL ;SAVE FOR NEXT ITERATION
LD A,(DE)
XOR (HL) ;FILTER DEVIATIONS
AND 3FH ;MASK MSB & PRECEDENCE BIT
JR NZ,PFIN4 ;LENGTHS DIFFER
PFIN2: INC HL ;(HL)<--ADDR NEXT CHR IN STRING
INC DE ;(DE)<--ADDR NEXT CHR IN NF
LD A,(DE)
XOR (HL) ;FILTER DEVIATIONS
ADD A,A
JR NZ,PFIN3 ;NO MATCH
JR NC,PFIN2 ;MATCH SO FAR, LOOP AGN
LD HL,0005H ;STRING MATCHES
ADD HL,DE ;((SP))<--PFA
EX (SP),HL
PFIN6: DEC DE ;POSN DE ON NFA
LD A,(DE)
OR A ;MSB=1? =LENGTH BYTE
JP P,PFIN6 ;NO, TRY NEXT CHR
LD E,A ;(E)<--LENGTH BYTE
LD D,00H
LD HL,0001H ;(HL)<--TRUE
JP DPUSH ;NF FOUND, RETURN
;
;ABOVE NF NOT A MATCH, TRY NEXT ONE
;
PFIN3: JR C,PFIN5 ;CARRY=END OF NF
PFIN4: INC DE ;FIND END OF NF
LD A,(DE)
OR A ;MSB=1?
JP P,PFIN4 ;NO, LOOP
PFIN5: INC DE ;(DE)<--LFA
EX DE,HL
LD E,(HL)
INC HL
LD D,(HL) ;(DE)<--(LFA)
LD A,D
OR E ;END OF DICTIONARY? (LFA)=0
JR NZ,PFIN1 ;NO, TRY PREVIOUS DEFINITION
POP HL ;DROP STRING ADDR
LD HL,0 ;(HL)<--FALSE
JHPUSH ;NO MATCH FOUND, RETURN
;
DEFB 87H ;ENCLOSE
DM 'ENCLOSE'
DEFW PFIND-9
ENCL: DEFW $+2
POP DE ;(DE)<--(S1)=DELIMITER CHR
POP HL ;(HL)<--(S2)=ADDR OF TEXT TO SCAN
PUSH HL ;(S4)<--ADDR
LD A,E
LD D,A ;(D)<--DELIM CHR
LD E,-1 ;INIT CHR OFFSET COUNTER
DEC HL ;(HL)<--ADDR-1
ENCL1: INC HL ;SKIP OVER LEADING DELIM CHRs
INC E
CP (HL) ;DELIM CHR?
JR Z,ENCL1 ;YES, LOOP
LD D,0
PUSH DE ;(S3)<--(E)=OFFSET TO 1st NON DELIM
LD D,A ;(D)<--DELIM CHR
LD A,(HL)
AND A ;1st non-DELIM=NULL?
JR NZ,ENCL2 ;NO
LD D,0 ;YES
INC E
PUSH DE ;(S2)<--OFFSET TO BYTE FOLLOWING NULL
DEC E
PUSH DE ;(S1)<--OFFSET TO NULL
JNEXT
ENCL2: LD A,D ;(A)<--DELIM CHR
INC HL ;(HL)<--ADDR NEXT CHR
INC E ;(E)<--OFFSET TO NEXT CHR
CP (HL) ;DELIM CHR?
JR Z,ENCL4 ;YES
LD A,(HL)
AND A ;NULL?
JR NZ,ENCL2 ;NO, CONT SCAN
ENCL3: LD D,0
PUSH DE ;(S2)<--OFFSET TO NULL
PUSH DE ;(S1)<--OFFSET TO NULL
JNEXT
ENCL4: LD D,0
PUSH DE ;(S2)<--OFFSET TO BYTE FOLLOWING TEXT
INC E
PUSH DE ;(S1)<--OFFSET TO 2 BYTES AFTER END OF WORD
JNEXT
;
DEFB 84H ;EMIT
DM 'EMIT'
DEFW ENCL-0AH
EMIT: DEFW DOCOL
DEFW PEMIT
DEFW ONE,OUTT
DEFW PSTOR,SEMIS
;
DEFB 83H ;KEY
DM 'KEY'
DEFW EMIT-7
KEY: DEFW $+2
JP PKEY
;
DEFB 89H ;?TERMINAL
DM '?TERMINAL'
DEFW KEY-6
QTERM: DEFW $+2
LD HL,0
JP PQTER
;
DEFB 82H ;CR
DM 'CR'
DEFW QTERM-0CH
CR: DEFW $+2
JP PCR
;
DEFB 85H ;CMOVE
DM 'CMOVE'
DEFW CR-5
CMOVE: DEFW $+2
EXX ;/ SAVE IP
POP BC ; (BC)<--(S1)= #CHRs
POP DE ; (DE)<--(S2)= DEST ADDR
POP HL ;/ (HL)<--(S3)= SOURCE ADDR
LD A,B
OR C ; BC=0?
JR Z,EXCMOV ; YES, DON'T MOVE ANYTHING
LDIR ;/ XFER STRING
EXCMOV: EXX ;/ RESTORE IP
JNEXT
;
DEFB 82H ;U* 16*16 unsigned multiply
DM 'U*' ;994 T cycles average (8080)
DEFW CMOVE-8
USTAR: DEFW $+2
POP DE ;(DE)<--MPLIER
POP HL ;(HL)<--MPCAND
PUSH BC ;SAVE IP
LD B,H
LD A,L ;(BA)<--MPCAND
CALL MPYX ;(AHL)1<--MPCAND.LB*MPLIER
; 1st PARTIAL PRODUCT
PUSH HL ;SAVE (HL)1
LD H,A
LD A,B
LD B,H ;SAVE (A)1
CALL MPYX ;(AHL)2<--MPCAND.HB*MPLIER
; 2nd PARTIAL PRODUCT
POP DE ;(DE)<--(HL)1
LD C,D ;(BC)<--(AH)1
; FORM SUM OF PARTIALS:
; ; (AHL)1
; ;+(AHL)2
; ;-------
; ; (AHLE)
ADD HL,BC ;(HL)<--(HL)2+(AH)1
ADC A,00H ;(AHLE)<--(BA)*(DE)
LD D,L
LD L,H
LD H,A ;(HLDE)<--MPLIER*MPCAND
POP BC ;RESTORE IP
PUSH DE ;(S2)<--PRODUCT.LW
JHPUSH ;(S1)<--PRODUCT.HW
;
; MULTIPLY PRIMITIVE
; (AHL)<--(A)*(DE)
; #BITS: 24 8 16
;
MPYX: LD HL,0 ;(HL)<--0=PARTIAL PRODUCT.LW
LD C,08H ;LOOP COUNTER
MPYX1: ADD HL,HL ;LEFT SHIFT (AHL) 24 BITS
RLA
JR NC,MPYX2 ;IF NEXT MPLIER BIT = 1
ADD HL,DE ;THEN ADD MPCAND
ADC A,0
MPYX2: DEC C ;LAST MPLIER BIT?
JR NZ,MPYX1 ;NO, LOOP AGN
RET ;YES, DONE
;
DEFB 82H ;U/
DM 'U/'
DEFW USTAR-5
USLAS: DEFW $+2
LD HL,0004H
ADD HL,SP ;((HL))<--NUMERATOR.LW
LD E,(HL) ;(DE)<--NUMER.LW
LD (HL),C ;SAVE IP ON STACK
INC HL
LD D,(HL)
LD (HL),B
POP BC ;(BC)<--DENOMINATOR
POP HL ;(HL)<--NUMER.HW
LD A,L
SUB C
LD A,H
SBC A,B ;NUMER >= DENOM?
JR C,USLA1 ;NO, GO AHEAD
LD HL,0FFFFH ;YES, OVERFLOW
LD D,H
LD E,L ;/ SET REM & QUOT TO MAX
JP USLA7
USLA1: LD A,10H ;LOOP COUNTER
USLA2: ADD HL,HL ;LEFT SHIFT (HLDE) THRU CARRY
RLA ;ROT CARRY INTO ACCU BIT 0
EX DE,HL
ADD HL,HL
JR NC,USLA3
INC DE ;ADD CARRY
AND A ;RESET CARRY
USLA3: EX DE,HL ;SHIFT DONE
RRA ;RESTORE 1st CARRY & COUNTER
JR NC,USLA4 ;IF CARRY=1
OR A ;/ RESET CARRY
SBC HL,BC ;/ THEN (HL)<--(HL)-(BC)
JP USLA5
USLA4: SBC HL,BC ;/ (HL)<--PARTIAL REMAINDER
JR NC,USLA5
ADD HL,BC ;UNDERFLOW, RESTORE
DEC DE
USLA5: INC DE ;INC QUOT
DEC A ;COUNTER=0?
JP NZ,USLA2 ;NO, LOOP AGN
USLA7: POP BC ;RESTORE IP
PUSH HL ;(S2)<--REMAINDER
PUSH DE ;(S1)<--QUOTIENT
JNEXT
;
DEFB 83H ;AND
DM 'AND'
DEFW USLAS-5
ANDD: DEFW $+2 ;(S1)<--(S1) AND (S2)
POP DE
POP HL
LD A,E
AND L
LD L,A
LD A,D
AND H
LD H,A
JHPUSH
;
DEFB 82H ;OR
DM 'OR'
DEFW ANDD-6
ORR: DEFW $+2 ;(S1)<--(S1) OR (S2)
POP DE
POP HL
LD A,E
OR L
LD L,A
LD A,D
OR H
LD H,A
JHPUSH
;
DEFB 83H ;XOR
DM 'XOR'
DEFW ORR-5
XORR: DEFW $+2 ;(S1)<--(S1) XOR (S2)
POP DE
POP HL
LD A,E
XOR L
LD L,A
LD A,D
XOR H
LD H,A
JHPUSH
;
DEFB 83H ;SP@
DM 'SP@'
DEFW XORR-6
SPAT: DEFW $+2 ;(S1)<--(SP)
LD HL,0
ADD HL,SP ;(HL)<--(SP)
JHPUSH
;
DEFB 83H ;SP!
DM 'SP!'
DEFW SPAT-6
SPSTO: DEFW $+2 ;(SP)<--(S0) (USER VARIABLE)
LD HL,(UP) ;(HL)<--USER VAR BASE ADDR
LD DE,0006H
ADD HL,DE ;(HL)<--S0
LD E,(HL)
INC HL
LD D,(HL) ;(DE)<--(S0)
EX DE,HL
LD SP,HL ;(SP)<--(S0)
JNEXT
;
DEFB 83H ;RP@
DM 'RP@'
DEFW SPSTO-6
RPAT: DEFW $+2 ;(S1)<--(RP)
LD HL,(RPP)
JHPUSH
;
DEFB 83H ;RP!
DM 'RP!'
DEFW RPAT-6
RPSTO: DEFW $+2 ;(RP)<--(R0) (USER VARIABLE)
LD HL,(UP) ;(HL)<--USER VAR BASE ADDR
LD DE,0008H
ADD HL,DE ;(HL)<--R0
LD E,(HL)
INC HL
LD D,(HL) ;(DE)<--(R0)
LD (RPP),DE ;/ (RP)<--(R0)
JNEXT
;
DEFB 82H ; ;S
DM ';S'
DEFW RPSTO-6
SEMIS: DEFW $+2 ;(IP)<--(R1)
LD HL,(RPP)
LD C,(HL)
INC HL
LD B,(HL) ;(BC)<--(R1)
INC HL
LD (RPP),HL ;(RP)<--(RP)+2
JNEXT
;
DEFB 85H ;LEAVE
DM 'LEAVE'
DEFW SEMIS-5
LEAVE: DEFW $+2 ;LIMIT<--INDEX
LD HL,(RPP)
LD E,(HL)
INC HL
LD D,(HL) ;(DE)<--(R1)=INDEX
INC HL
LD (HL),E
INC HL
LD (HL),D ;(R2)<--(DE)=LIMIT
JNEXT
;
DEFB 82H ;>R
DM '>R'
DEFW LEAVE-8
TOR: DEFW $+2
POP DE
LD HL,(RPP)
DEC HL
LD (HL),D
DEC HL
LD (HL),E ;/ (R1)<--(DE)
LD (RPP),HL ; (RP)<--(RP)-2
JNEXT
;
DEFB 82H ;R>
DM 'R>'
DEFW TOR-5
FROMR: DEFW $+2
LD HL,(RPP)
LD E,(HL)
INC HL
LD D,(HL)
INC HL
LD (RPP),HL
PUSH DE ;(S1)<--(R1)
JNEXT
;
DEFB 81H ;R
DM 'R'
DEFW FROMR-5
RR: DEFW IDO+2
;
DEFB 82H ;0=
DM '0='
DEFW RR-4
ZEQU: DEFW $+2
POP HL
LD A,L
OR H
LD HL,0
JR NZ,ZEQU1
INC L ;(HL)<--TRUE
ZEQU1: JHPUSH
;
DEFB 82H ;0<
DM '0<'
DEFW ZEQU-5
ZLESS: DEFW $+2
POP AF ;/ (A)<--(S1)H
RLA ;/ (CARRY)<--BIT 7
LD HL,0 ; (HL)<--FALSE
JR NC,ZLES1
INC L ; (HL)<--TRUE
ZLES1: JHPUSH
;
DEFB 81H ;+
DM '+'
DEFW ZLESS-5
PLUS: DEFW $+2
POP DE
POP HL
ADD HL,DE
JHPUSH
;
DEFB 82H ;D+ ( d1L d1H d2L d2h -- d3L d3H)
DM 'D+'
DEFW PLUS-4
DPLUS: DEFW $+2
EXX ;/ SAVE IP
POP BC ; (BC)<--d2H
POP HL ; (HL)<--d2L
POP AF ;d (AF)<--d1H
POP DE ; (DE)<--d1L
PUSH AF ;/ (S1)<--d1H
ADD HL,DE ; (HL)<--d2L+d1L=d3L
EX DE,HL ; (DE)<--d3L
POP HL ; (HL)<--d1H
ADC HL,BC ;/ (HL)<--d1H+d2H+CARRY=d3H
PUSH DE ; (S2)<--d3L
PUSH HL ;/ (S1)<--d3H
EXX ;/ RESTORE IP
JNEXT
;
DEFB 85H ;MINUS
DM 'MINUS'
DEFW DPLUS-5
MINUS: DEFW $+2
POP DE ;/
XOR A ;/ RESET CARRY, (A)<--0
LD H,A ;/
LD L,A ;/ LD HL,0
SBC HL,DE ;/ (HL)<--(DE)2's COMPL.
JHPUSH
;
DEFB 86H ;DMINUS
DM 'DMINUS'
DEFW MINUS-8
DMINU: DEFW $+2
POP HL ;(HL)<--d1H
POP DE ;(DE)<--d1L
SUB A ;(A)<--0
SUB E
LD E,A ;(E)<--NEG(E)
LD A,00H
SBC A,D
LD D,A ;(D)<--NEG(D)
LD A,00H
SBC A,L
LD L,A ;(L)<--NEG(L)
LD A,00H
SBC A,H
LD H,A ;(H)<--NEG(H)
JP DPUSH ;(S2)<--d2L, (S1)<--d2H
;
DEFB 84H ;OVER
DM 'OVER'
DEFW DMINU-9
OVER: DEFW $+2
POP DE
POP HL
PUSH HL
JP DPUSH
;
DEFB 84H ;DROP
DM 'DROP'
DEFW OVER-7
DROP: DEFW $+2
POP HL
JNEXT
;
DEFB 84H ;SWAP
DM 'SWAP'
DEFW DROP-7
SWAP: DEFW $+2
POP HL
EX (SP),HL
JHPUSH
;
DEFB 83H ;DUP
DM 'DUP'
DEFW SWAP-7
DUP: DEFW $+2
POP HL
PUSH HL
JHPUSH
;
DEFB 84H ;2DUP
DM '2DUP'
DEFW DUP-6
TDUP: DEFW $+2
POP HL
POP DE
PUSH DE
PUSH HL
JP DPUSH
;
DEFB 82H ;+!
DM '+!'
DEFW TDUP-7
PSTOR: DEFW $+2
POP HL ;(HL)<--VAR ADDR
POP DE ;(DE)<--NUMBER
LD A,(HL)
ADD A,E
LD (HL),A
INC HL
LD A,(HL)
ADC A,D
LD (HL),A ;((HL))<--((HL))+NUMBER
JNEXT
;
DEFB 86H ;TOGGLE
DM 'TOGGLE'
DEFW PSTOR-5
TOGGL: DEFW $+2
POP DE ;(E)<--BIT PATTERN
POP HL ;(HL)<--ADDR
LD A,(HL)
XOR E
LD (HL),A
JNEXT
;
DEFB 81H ;@
DM '@'
DEFW TOGGL-9
AT: DEFW $+2
POP HL
LD E,(HL)
INC HL
LD D,(HL)
PUSH DE
JNEXT
;
DEFB 82H ;C@
DM 'C@'
DEFW AT-4
CAT: DEFW $+2
POP HL
LD L,(HL)
LD H,0
JHPUSH
;
DEFB 82H ;2@
DM '2@'
DEFW CAT-5
TAT: DEFW $+2
EXX ;/ SAVE IP
POP HL ; (HL)<--ADDR
LD C,(HL)
INC HL
LD B,(HL) ;/ (BC)<--dH
INC HL
LD E,(HL)
INC HL
LD D,(HL) ; (DE)<--dL
PUSH DE ; (S2)<--dL
PUSH BC ;/ (S1)<--dH
EXX ;/ RESTORE IP
JNEXT
;
DEFB 81H ;!
DM '!'
DEFW TAT-5
STORE: DEFW $+2
POP HL
POP DE
LD (HL),E
INC HL
LD (HL),D
JNEXT
;
DEFB 82H ;C!
DM 'C!'
DEFW STORE-4
CSTOR: DEFW $+2
POP HL
POP DE
LD (HL),E
JNEXT
;
DEFB 82H ;2!
DM '2!'
DEFW CSTOR-5
TSTOR: DEFW $+2
POP HL
POP DE
LD (HL),E
INC HL
LD (HL),D
INC HL
POP DE
LD (HL),E
INC HL
LD (HL),D
JNEXT
;
DEFB 0C1H ; :
DM ':'
DEFW TSTOR-5
COLON: DEFW DOCOL
DEFW QEXEC
DEFW SCSP
DEFW CURR
DEFW AT
DEFW CONT
DEFW STORE
DEFW CREAT
DEFW RBRAC
DEFW PSCOD
DOCOL: LD HL,(RPP)
DEC HL
LD (HL),B
DEC HL
LD (HL),C
LD (RPP),HL
INC DE
LD C,E
LD B,D
JNEXT
;
DEFB 0C1H ; ;
DM ';'
DEFW COLON-4
SEMI: DEFW DOCOL
DEFW QCSP
DEFW COMP
DEFW SEMIS
DEFW SMUDG
DEFW LBRAC
DEFW SEMIS
;
DEFB 84H ;NOOP
DM 'NOOP'
DEFW SEMI-4
NOOP: DEFW DOCOL
DEFW SEMIS
;
DEFB 88H ;CONSTANT
DM 'CONSTANT'
DEFW NOOP-7
CON: DEFW DOCOL
DEFW CREAT
DEFW SMUDG
DEFW COMMA
DEFW PSCOD
DOCON: INC DE
EX DE,HL
LD E,(HL)
INC HL
LD D,(HL)
PUSH DE
JNEXT
;
DEFB 88H ;VARIABLE
DM 'VARIABLE'
DEFW CON-0BH
VAR: DEFW DOCOL
DEFW CON
DEFW PSCOD
DOVAR: INC DE
PUSH DE
JNEXT
;
DEFB 84H ;USER
DM 'USER'
DEFW VAR-0BH
USER: DEFW DOCOL
DEFW CON
DEFW PSCOD
DOUSE: INC DE
EX DE,HL
LD E,(HL)
LD D,00H
LD HL,(UP)
ADD HL,DE
JHPUSH
;
DEFB 81H ;0
DM '0'
DEFW USER-7
ZERO: DEFW $+2 ;/
LD HL,0 ;/
JHPUSH ;/
;
DEFB 81H ;1
DM '1'
DEFW ZERO-4
ONE: DEFW $+2 ;/
LD HL,1 ;/
JHPUSH ;/
;
DEFB 81H ;2
DM '2'
DEFW ONE-4
TWO: DEFW $+2 ;/
LD HL,2 ;/
JHPUSH ;/
;
DEFB 81H ;3
DM '3'
DEFW TWO-4
THREE: DEFW $+2 ;/
LD HL,3 ;/
JHPUSH ;/
;
DEFB 82H ;BL
DM 'BL'
DEFW THREE-4
BL: DEFW DOCON
DEFW 20H
;
DEFB 83H ;C/L
DM 'C/L'
DEFW BL-5
CSLL: DEFW DOCON
DEFW 64
;
DEFB 85H ;FIRST
DM 'FIRST'
DEFW CSLL-6
FIRST: DEFW DOCON
DEFW 0 ;/ set by CLD
;
DEFB 85H ;LIMIT
DM 'LIMIT'
DEFW FIRST-8
LIMIT: DEFW DOCON
DEFW 0 ;/ set by CLD
;
DEFB 85H ;B/BUF
DM 'B/BUF'
DEFW LIMIT-8
BBUF: DEFW DOCON
DEFW KBBUF
;
DEFB 85H ;B/SCR
DM 'B/SCR'
DEFW BBUF-8
BSCR: DEFW DOCON
DEFW 400H/KBBUF
;
DEFB 87H ;+ORIGIN
DM '+ORIGIN'
DEFW BSCR-8
PORIG: DEFW DOCOL
DEFW LIT
DEFW ORIG
DEFW PLUS
DEFW SEMIS
;
; USER VARIABLES
;
DEFB 82H ;S0
DM 'S0'
DEFW PORIG-0AH
SZERO: DEFW DOUSE
DEFW 6
;
DEFB 82H ;R0
DM 'R0'
DEFW SZERO-5
RZERO: DEFW DOUSE
DEFW 8
;
DEFB 83H ;TIB
DM 'TIB'
DEFW RZERO-5
TIB: DEFW DOUSE
DEFB 0AH
;
DEFB 85H ;WIDTH
DM 'WIDTH'
DEFW TIB-6
WIDTH: DEFW DOUSE
DEFB 0CH
;
DEFB 87H ;WARNING
DM 'WARNING'
DEFW WIDTH-8
WARN: DEFW DOUSE
DEFB 0EH
;
DEFB 85H ;FENCE
DM 'FENCE'
DEFW WARN-0AH
FENCE: DEFW DOUSE
DEFB 10H
;
DEFB 82H ;DP
DM 'DP'
DEFW FENCE-8
DP: DEFW DOUSE
DEFB 12H
;
DEFB 88H ;VOC-LINK
DM 'VOC-LINK'
DEFW DP-5
VOCL: DEFW DOUSE
DEFW 14H
;
DEFB 83H ;BLK
DM 'BLK'
DEFW VOCL-0BH
BLK: DEFW DOUSE
DEFB 16H
;
DEFB 82H ;IN
DM 'IN'
DEFW BLK-6
INN: DEFW DOUSE
DEFB 18H
;
DEFB 83H ;OUT
DM 'OUT'
DEFW INN-5
OUTT: DEFW DOUSE
DEFB 1AH
;
DEFB 83H ;SCR
DM 'SCR'
DEFW OUTT-6
SCR: DEFW DOUSE
DEFB 1CH
;
DEFB 86H ;OFFSET
DM 'OFFSET'
DEFW SCR-6
OFSET: DEFW DOUSE
DEFB 1EH
;
DEFB 87H ;CONTEXT
DM 'CONTEXT'
DEFW OFSET-9
CONT: DEFW DOUSE
DEFB 20H
;
DEFB 87H ;CURRENT
DM 'CURRENT'
DEFW CONT-0AH
CURR: DEFW DOUSE
DEFB 22H
;
DEFB 85H ;STATE
DM 'STATE'
DEFW CURR-0AH
STATE: DEFW DOUSE
DEFB 24H
;
DEFB 84H ;BASE
DM 'BASE'
DEFW STATE-8
BASE: DEFW DOUSE
DEFB 26H
;
DEFB 83H ;DPL
DM 'DPL'
DEFW BASE-7
DPL: DEFW DOUSE
DEFB 28H
;
DEFB 83H ;FLD
DM 'FLD'
DEFW DPL-6
FLD: DEFW DOUSE
DEFB 2AH
;
DEFB 83H ;CSP
DM 'CSP'
DEFW FLD-6
CSPP: DEFW DOUSE
DEFB 2CH
;
DEFB 82H ;R#
DM 'R#'
DEFW CSPP-6
RNUM: DEFW DOUSE
DEFB 2EH
;
DEFB 83H ;HLD
DM 'HLD'
DEFW RNUM-5
HLD: DEFW DOUSE
DEFW 30H
;
; END OF USER VARIABLES
;
DEFB 82H ;1+
DM '1+'
DEFW HLD-6
ONEP: DEFW $+2 ;/
POP HL ;/
INC HL ;/
JHPUSH ;/
;
DEFB 82H ;2+
DM '2+'
DEFW ONEP-5
TWOP: DEFW $+2 ;/
POP HL ;/
INC HL ;/
INC HL ;/
JHPUSH ;/
;
DEFB 82H ;/ 1-
DM '1-' ;/
DEFW TWOP-5 ;/
ONEMIN: DEFW $+2 ;/
POP HL ;/
DEC HL ;/
JHPUSH ;/
;
DEFB 82H ;/ 2-
DM '2-' ;/
DEFW ONEMIN-5 ;/
TWOMIN: DEFW $+2 ;/
POP HL ;/
DEC HL ;/
DEC HL ;/
JHPUSH ;/
;
DEFB 82H ;/ 2*
DM '2*' ;/
DEFW TWOMIN-5 ;/
TWOSTA: DEFW $+2 ;/
POP HL ;/
ADD HL,HL ;/ ASL HL
JHPUSH ;/
;
DEFB 82H ;/ 2/
DM '2/' ;/
DEFW TWOSTA-5 ;/
TWOSLA: DEFW $+2 ;/
POP HL ;/
BIT 7,H ;/
JR Z,TWOSL1 ;/
INC HL ;/
TWOSL1: SRA H ;/
RR L ;/ ASR HL
JHPUSH ;/
;
DEFB 84H ;HERE
DM 'HERE'
DEFW TWOSLA-5
HERE: DEFW DOCOL
DEFW DP
DEFW AT
DEFW SEMIS
;
DEFB 85H ;ALLOT
DM 'ALLOT'
DEFW HERE-7
ALLOT: DEFW DOCOL
DEFW DP
DEFW PSTOR
DEFW SEMIS
;
DEFB 81H ; ,
DM ','
DEFW ALLOT-8
COMMA: DEFW DOCOL
DEFW HERE
DEFW STORE
DEFW TWO
DEFW ALLOT
DEFW SEMIS
;
DEFB 82H ;C,
DM 'C,'
DEFW COMMA-4
CCOMM: DEFW DOCOL
DEFW HERE
DEFW CSTOR
DEFW ONE
DEFW ALLOT
DEFW SEMIS
;
DEFB 81H ;-
DM '-'
DEFW CCOMM-5
SUBB: DEFW $+2
POP DE
POP HL
OR A ;/ RESET CARRY
SBC HL,DE ;/
JHPUSH
;
DEFB 81H ;=
DM '='
DEFW SUBB-4
EQUAL: DEFW $+2 ;/
POP DE ;/
POP HL ;/
XOR A ;/ RESET CARRY
SBC HL,DE ;/
LD H,A ;/
LD L,A ;/ LD HL,0000H
JR NZ,EXEQU ;/ FALSE
INC L ;/ TRUE
EXEQU: JHPUSH ;/
;
DEFB 81H ; <
DM '<'
DEFW EQUAL-4
LESS: DEFW $+2
POP DE
POP HL ; (HL) (DE) <
LD A,D
XOR H ; ONE OF THEM NEGATIVE?
JP M,LES1 ; YES, DETERMINE WHICH
OR A ;/ CLR CARRY
SBC HL,DE ;/
LES1: BIT 7,H ;/ (H) NEGATIVE?
LD HL,0
JR Z,EXLESS ;/ NO, FALSE
INC L ;/ TRUE
EXLESS: JHPUSH
;
DEFB 82H ;U<
DM 'U<'
DEFW LESS-4
ULESS: DEFW $+2 ;/
POP DE
POP HL ;/ (HL) (DE) U<
XOR A ;/
SBC HL,DE ;/
LD H,A ;/
LD L,A ;/ LD HL,0000H
JR NC,EXULES ;/ FALSE
INC L ;/ TRUE
EXULES: JHPUSH
;
DEFB 81H ;>
DM '>'
DEFW ULESS-5
GREAT: DEFW $+2
POP HL ;/
POP DE ;/ (HL) (DE) > = (DE) (HL) <
LD A,D
XOR H ; ONE OF THEM NEGATIVE?
JP M,GREAT1 ; YES, DETERMINE WHICH
OR A ;/ CLR CARRY
SBC HL,DE ;/
GREAT1: BIT 7,H ;/ (H) NEGATIVE?
LD HL,0 ; (HL)<--FALSE
JR Z,GREAT2 ;/ NO, FALSE
INC L ;/ (HL)<--TRUE
GREAT2: JHPUSH
;
DEFB 83H ;ROT
DM 'ROT'
DEFW GREAT-4
ROT: DEFW $+2
POP DE
POP HL
EX (SP),HL
JP DPUSH
;
DEFB 85H ;SPACE
DM 'SPACE'
DEFW ROT-6
SPACE: DEFW DOCOL
DEFW BL
DEFW EMIT
DEFW SEMIS
;
DEFB 84H ;-DUP
DM '-DUP'
DEFW SPACE-8
DDUP: DEFW $+2 ;/
POP HL ;/
LD A,H ;/
OR L ;/ (HL)=0?
JR Z,EXDDUP ;/ YES, DON'T DUP
PUSH HL ;/
EXDDUP: JHPUSH
;
DEFB 88H ;TRAVERSE
DM 'TRAVERSE'
DEFW DDUP-7
TRAV: DEFW DOCOL
DEFW SWAP
TRAV1: DEFW OVER ;BEGIN
DEFW PLUS
DEFW LIT
DEFW 7FH
DEFW OVER
DEFW CAT
DEFW LESS
DEFW ZBRAN ;UNTIL
DEFW TRAV1-$
DEFW SWAP
DEFW DROP
DEFW SEMIS
;
DEFB 86H ;LATEST
DM 'LATEST'
DEFW TRAV-0BH
LATES: DEFW DOCOL
DEFW CURR
DEFW AT
DEFW AT
DEFW SEMIS
;
DEFB 83H ;LFA
DM 'LFA'
DEFW LATES-9
LFA: DEFW $+2 ;/
POP HL ;/ (HL)<--PFA
DEC HL ;/
DEC HL ;/
DEC HL ;/
DEC HL ;/ (HL)<--(HL)-4 = LFA
JHPUSH ;/
;
DEFB 83H ;CFA
DM 'CFA'
DEFW LFA-6
CFA: DEFW DOCOL
DEFW TWOMIN ;/
DEFW SEMIS
;
DEFB 83H ;NFA
DM 'NFA'
DEFW CFA-6
NFA: DEFW DOCOL
DEFW LIT
DEFW 5
DEFW SUBB
DEFW LIT
DEFW -1
DEFW TRAV
DEFW SEMIS
;
DEFB 83H ;PFA
DM 'PFA'
DEFW NFA-6
PFA: DEFW DOCOL
DEFW ONE
DEFW TRAV
DEFW LIT
DEFW 5
DEFW PLUS
DEFW SEMIS
;
DEFB 84H ;!CSP
DM '!CSP'
DEFW PFA-6
SCSP: DEFW DOCOL
DEFW SPAT
DEFW CSPP
DEFW STORE
DEFW SEMIS
;
DEFB 86H ;?ERROR
DM '?ERROR'
DEFW SCSP-7
QERR: DEFW DOCOL
DEFW SWAP
DEFW ZBRAN ;IF
DEFW QERR1-$
DEFW ERROR
DEFW BRAN ;ELSE
DEFW QERR2-$
QERR1: DEFW DROP ;ENDIF
QERR2: DEFW SEMIS
;
DEFB 85H ;?COMP
DM '?COMP'
DEFW QERR-9
QCOMP: DEFW DOCOL
DEFW STATE
DEFW AT
DEFW ZEQU
DEFW LIT
DEFW 11H
DEFW QERR
DEFW SEMIS
;
DEFB 85H ;?EXEC
DM '?EXEC'
DEFW QCOMP-8
QEXEC: DEFW DOCOL
DEFW STATE
DEFW AT
DEFW LIT
DEFW 12H
DEFW QERR
DEFW SEMIS
;
DEFB 86H ;?PAIRS
DM '?PAIRS'
DEFW QEXEC-8
QPAIR: DEFW DOCOL
DEFW SUBB
DEFW LIT
DEFW 13H
DEFW QERR
DEFW SEMIS
;
DEFB 84H ;?CSP
DM '?CSP'
DEFW QPAIR-9
QCSP: DEFW DOCOL
DEFW SPAT
DEFW CSPP
DEFW AT
DEFW SUBB
DEFW LIT
DEFW 14H
DEFW QERR
DEFW SEMIS
;
DEFB 88H ;?LOADING
DM '?LOADING'
DEFW QCSP-7
QLOAD: DEFW DOCOL
DEFW BLK
DEFW AT
DEFW ZEQU
DEFW LIT
DEFW 16H
DEFW QERR
DEFW SEMIS
;
DEFB 87H ;COMPILE
DM 'COMPILE'
DEFW QLOAD-0BH
COMP: DEFW DOCOL
DEFW QCOMP
DEFW FROMR
DEFW DUP
DEFW TWOP
DEFW TOR
DEFW AT
DEFW COMMA
DEFW SEMIS
;
DEFB 0C1H ;[
DM '['
DEFW COMP-0AH
LBRAC: DEFW DOCOL
DEFW ZERO
DEFW STATE
DEFW STORE
DEFW SEMIS
;
DEFB 81H ;]
DM ']'
DEFW LBRAC-4
RBRAC: DEFW DOCOL
DEFW LIT,0C0H
DEFW STATE,STORE
DEFW SEMIS
;
DEFB 86H ;SMUDGE
DM 'SMUDGE'
DEFW RBRAC-4
SMUDG: DEFW DOCOL
DEFW LATES
DEFW LIT
DEFW 20H
DEFW TOGGL
DEFW SEMIS
;
DEFB 83H ;HEX
DM 'HEX'
DEFW SMUDG-9
HEX: DEFW DOCOL
DEFW LIT
DEFW 10H
DEFW BASE
DEFW STORE
DEFW SEMIS
;
DEFB 87H ;DECIMAL
DM 'DECIMAL'
DEFW HEX-6
DEC: DEFW DOCOL
DEFW LIT
DEFW 0AH
DEFW BASE
DEFW STORE
DEFW SEMIS
;
DEFB 87H ;(;CODE)
DM '(;CODE)'
DEFW DEC-0AH
PSCOD: DEFW DOCOL
DEFW FROMR
DEFW LATES
DEFW PFA
DEFW CFA
DEFW STORE
DEFW SEMIS
;
DEFB 0C5H ; ;CODE
DM ';CODE'
DEFW PSCOD-0AH
SEMIC: DEFW DOCOL
DEFW QCSP
DEFW COMP
DEFW PSCOD
DEFW LBRAC
SEMI1: DEFW NOOP ;ASSEMBLER
DEFW SEMIS
;
DEFB 87H ;<BUILDS
DM '<BUILDS'
DEFW SEMIC-8
BUILD: DEFW DOCOL
DEFW ZERO
DEFW CON
DEFW SEMIS
;
DEFB 85H ;DOES>
DM 'DOES>'
DEFW BUILD-0AH
DOES: DEFW DOCOL
DEFW FROMR
DEFW LATES
DEFW PFA
DEFW STORE
DEFW PSCOD
DODOE: LD HL,(RPP)
DEC HL
LD (HL),B
DEC HL
LD (HL),C
LD (RPP),HL
INC DE
EX DE,HL
LD C,(HL)
INC HL
LD B,(HL)
INC HL
JHPUSH
;
DEFB 85H ;COUNT
DM 'COUNT'
DEFW DOES-8
COUNT: DEFW DOCOL
DEFW DUP
DEFW ONEP
DEFW SWAP
DEFW CAT
DEFW SEMIS
;
DEFB 84H ;TYPE
DM 'TYPE'
DEFW COUNT-8
TYPE: DEFW DOCOL
DEFW DDUP
DEFW ZBRAN ;IF
DEFW TYPE1-$
DEFW OVER
DEFW PLUS
DEFW SWAP
DEFW XDO ;DO
TYPE2: DEFW IDO
DEFW CAT
DEFW EMIT
DEFW XLOOP ;LOOP
DEFW TYPE2-$
DEFW BRAN ;ELSE
DEFW TYPE3-$
TYPE1: DEFW DROP ;ENDIF
TYPE3: DEFW SEMIS
;
DEFB 89H ;-TRAILING
DM '-TRAILING'
DEFW TYPE-7
DTRAI: DEFW DOCOL
DEFW DUP
DEFW ZERO
DEFW XDO ;DO
DTRA1: DEFW TDUP ;/
DEFW PLUS
DEFW ONEMIN ;/
DEFW CAT
DEFW BL
DEFW SUBB
DEFW ZBRAN ;IF
DEFW DTRA2-$
DEFW LEAVE
DEFW BRAN ;ELSE
DEFW DTRA3-$
DTRA2: DEFW ONEMIN ;/
DTRA3: DEFW XLOOP ;LOOP
DEFW DTRA1-$
DEFW SEMIS
;
DEFB 84H ;(.")
DM '(.")'
DEFW DTRAI-0CH
PDOTQ: DEFW DOCOL
DEFW RR
DEFW COUNT
DEFW DUP
DEFW ONEP
DEFW FROMR
DEFW PLUS
DEFW TOR
DEFW TYPE
DEFW SEMIS
;
DEFB 0C2H ;."
DM '."'
DEFW PDOTQ-7
DOTQ: DEFW DOCOL
DEFW LIT
DEFW 22H
DEFW STATE
DEFW AT
DEFW ZBRAN ;IF
DEFW DOTQ1-$
DEFW COMP
DEFW PDOTQ
DEFW WORD
DEFW HERE
DEFW CAT
DEFW ONEP
DEFW ALLOT
DEFW BRAN ;ELSE
DEFW DOTQ2-$
DOTQ1: DEFW WORD
DEFW HERE
DEFW COUNT
DEFW TYPE ;ENDIF
DOTQ2: DEFW SEMIS
;
DEFB 86H ;EXPECT
DM 'EXPECT'
DEFW DOTQ-5
EXPEC: DEFW DOCOL
DEFW OVER
DEFW PLUS
DEFW OVER
DEFW XDO ;DO
EXPE1: DEFW KEY
DEFW DUP
DEFW LIT
DEFW 0EH
DEFW PORIG
DEFW AT
DEFW EQUAL
DEFW ZBRAN ;IF
DEFW EXPE2-$
DEFW DROP
DEFW DUP
DEFW IDO
DEFW EQUAL
DEFW DUP
DEFW FROMR
DEFW TWOMIN ;/
DEFW PLUS
DEFW TOR
DEFW ZBRAN ;IF
DEFW EXPE6-$
DEFW LIT
DEFW BELL
DEFW BRAN ;ELSE
DEFW EXPE7-$
EXPE6: DEFW LIT
DEFW BSOUT ;ENDIF
EXPE7: DEFW BRAN ;ELSE
DEFW EXPE3-$
EXPE2: DEFW DUP
DEFW LIT
DEFW ACR ;/
DEFW EQUAL
DEFW ZBRAN ;IF
DEFW EXPE4-$
DEFW LEAVE
DEFW DROP
DEFW BL
DEFW ZERO
DEFW BRAN ;ELSE
DEFW EXPE5-$
EXPE4: DEFW DUP ;ENDIF
EXPE5: DEFW IDO
DEFW CSTOR
DEFW ZERO
DEFW IDO
DEFW ONEP
DEFW STORE ;ENDIF
EXPE3: DEFW EMIT
DEFW XLOOP ;LOOP
DEFW EXPE1-$
DEFW DROP
DEFW SEMIS
;
DEFB 85H ;QUERY
DM 'QUERY'
DEFW EXPEC-9
QUERY: DEFW DOCOL
DEFW TIB
DEFW AT
DEFW LIT
DEFW 50H
DEFW EXPEC
DEFW ZERO
DEFW INN
DEFW STORE
DEFW SEMIS
;
DEFB 0C1H ;NULL
DEFB 80H
DEFW QUERY-8
NULL: DEFW DOCOL
DEFW BLK
DEFW AT
DEFW ZBRAN ;IF
DEFW NULL1-$
DEFW ONE
DEFW BLK
DEFW PSTOR
DEFW ZERO
DEFW INN
DEFW STORE
DEFW BLK
DEFW AT
DEFW BSCR
DEFW ONEMIN ;/
DEFW ANDD
DEFW ZEQU
DEFW ZBRAN ;IF
DEFW NULL2-$
DEFW QEXEC
DEFW FROMR
DEFW DROP ;ENDIF
NULL2: DEFW BRAN ;ELSE
DEFW NULL3-$
NULL1: DEFW FROMR
DEFW DROP ;ENDIF
NULL3: DEFW SEMIS
;
DEFB 84H ;FILL
DM 'FILL'
DEFW NULL-4
FILL: DEFW $+2
EXX ;/ SAVE IP
POP DE ;/ (E)<--BYTE
POP BC ; (BC)<--QUANTITY
POP HL ;/ (HL)<--ADDR
FILL1: LD A,B
OR C ; QTY=0?
JR Z,FILL2 ; YES
LD (HL),E ;/ ((HL))<--BYTE
INC HL ; INC POINTER
DEC BC ; DEC COUNTER
JP FILL1 ;/
FILL2: EXX ;/ RESTORE IP
JNEXT
;
DEFB 85H ;ERASE
DM 'ERASE'
DEFW FILL-7
ERASEE: DEFW DOCOL
DEFW ZERO
DEFW FILL
DEFW SEMIS
;
DEFB 86H ;BLANKS
DM 'BLANKS'
DEFW ERASEE-8
BLANK: DEFW DOCOL
DEFW BL
DEFW FILL
DEFW SEMIS
;
DEFB 84H ;HOLD
DM 'HOLD'
DEFW BLANK-9
HOLD: DEFW DOCOL
DEFW LIT
DEFW -1
DEFW HLD
DEFW PSTOR
DEFW HLD
DEFW AT
DEFW CSTOR
DEFW SEMIS
;
DEFB 83H ;PAD
DM 'PAD'
DEFW HOLD-7
PAD: DEFW DOCOL
DEFW HERE
DEFW LIT
DEFW 44H
DEFW PLUS
DEFW SEMIS
;
DEFB 84H ;WORD
DM 'WORD'
DEFW PAD-6
WORD: DEFW DOCOL
DEFW BLK
DEFW AT
DEFW ZBRAN ;IF
DEFW WORD1-$
DEFW BLK
DEFW AT
DEFW BLOCK
DEFW BRAN ;ELSE
DEFW WORD2-$
WORD1: DEFW TIB
DEFW AT ;ENDIF
WORD2: DEFW INN
DEFW AT
DEFW PLUS
DEFW SWAP
DEFW ENCL
DEFW HERE
DEFW LIT
DEFW 22H
DEFW BLANK
DEFW INN
DEFW PSTOR
DEFW OVER
DEFW SUBB
DEFW TOR
DEFW RR
DEFW HERE
DEFW CSTOR
DEFW PLUS
DEFW HERE
DEFW ONEP
DEFW FROMR
DEFW CMOVE
DEFW SEMIS
;
DEFB 88H ;(NUMBER)
DM '(NUMBER)'
DEFW WORD-7
PNUMB: DEFW DOCOL
PNUM1: DEFW ONEP ;BEGIN
DEFW DUP
DEFW TOR
DEFW CAT
DEFW BASE
DEFW AT
DEFW DIGIT
DEFW ZBRAN ;WHILE
DEFW PNUM2-$
DEFW SWAP
DEFW BASE
DEFW AT
DEFW USTAR
DEFW DROP
DEFW ROT
DEFW BASE
DEFW AT
DEFW USTAR
DEFW DPLUS
DEFW DPL
DEFW AT
DEFW ONEP
DEFW ZBRAN ;IF
DEFW PNUM3-$
DEFW ONE
DEFW DPL
DEFW PSTOR ;ENDIF
PNUM3: DEFW FROMR
DEFW BRAN ;REPEAT
DEFW PNUM1-$
PNUM2: DEFW FROMR
DEFW SEMIS
;
DEFB 86H ;NUMBER
DM 'NUMBER'
DEFW PNUMB-0BH
NUMB: DEFW DOCOL
DEFW ZERO
DEFW ZERO
DEFW ROT
DEFW DUP
DEFW ONEP
DEFW CAT
DEFW LIT
DEFW 2DH
DEFW EQUAL
DEFW DUP
DEFW TOR
DEFW PLUS
DEFW LIT
DEFW -1
NUMB1: DEFW DPL ;BEGIN
DEFW STORE
DEFW PNUMB
DEFW DUP
DEFW CAT
DEFW BL
DEFW SUBB
DEFW ZBRAN ;WHILE
DEFW NUMB2-$
DEFW DUP
DEFW CAT
DEFW LIT
DEFW 2EH
DEFW SUBB
DEFW ZERO
DEFW QERR
DEFW ZERO
DEFW BRAN ;REPEAT
DEFW NUMB1-$
NUMB2: DEFW DROP
DEFW FROMR
DEFW ZBRAN ;IF
DEFW NUMB3-$
DEFW DMINU ;ENDIF
NUMB3: DEFW SEMIS
;
DEFB 85H ;-FIND (0-3) SUCCESS
DM '-FIND' ; (0-1) FAILURE
DEFW NUMB-9
DFIND: DEFW DOCOL
DEFW BL
DEFW WORD
DEFW HERE
DEFW CONT
DEFW AT
DEFW AT
DEFW PFIND
DEFW DUP
DEFW ZEQU
DEFW ZBRAN ;IF
DEFW DFIN1-$
DEFW DROP
DEFW HERE
DEFW LATES
DEFW PFIND ;ENDIF
DFIN1: DEFW SEMIS
;
DEFB 87H ;(ABORT)
DM '(ABORT)'
DEFW DFIND-8
PABOR: DEFW DOCOL
DEFW ABORT
DEFW SEMIS
;
DEFB 85H ;ERROR
DM 'ERROR'
DEFW PABOR-0AH
ERROR: DEFW DOCOL
DEFW WARN
DEFW AT
DEFW ZLESS
DEFW ZBRAN ;IF
DEFW ERRO1-$
DEFW PABOR ;ENDIF
ERRO1: DEFW HERE
DEFW COUNT
DEFW TYPE
DEFW PDOTQ
DEFB 2
DB '? '
DEFW MESS
DEFW SPSTO
; CHANGE FROM fig MODEL
; DEFW INN,AT,BLK,AT
DEFW BLK,AT
DEFW DDUP
DEFW ZBRAN,ERRO2-$ ;IF
DEFW INN,AT
DEFW SWAP ;ENDIF
ERRO2: DEFW QUIT
;
DEFB 83H ;ID.
DM 'ID.'
DEFW ERROR-8
IDDOT: DEFW DOCOL
DEFW PAD
DEFW LIT
DEFW 20H
DEFW BLANK ;/
DEFW DUP
DEFW PFA
DEFW LFA
DEFW OVER
DEFW SUBB
DEFW DUP ;/ change frm MODEL
DEFW TOR ;/ to suppress BIT 7
DEFW PAD
DEFW SWAP
DEFW CMOVE
DEFW PAD
DEFW FROMR ;/ for terminals
DEFW PAD ;/ with an 8 bit
DEFW PLUS ;/ ASCCI character set.
DEFW ONEMIN ;/
DEFW DUP ;/
DEFW AT ;/
DEFW LIT ;/
DEFW 7FH ;/
DEFW ANDD ;/
DEFW SWAP ;/
DEFW STORE ;/
DEFW COUNT
DEFW LIT
DEFW 1FH ; WIDTH
DEFW ANDD
DEFW TYPE
DEFW SPACE
DEFW SEMIS
;
DEFB 86H ;CREATE
DM 'CREATE'
DEFW IDDOT-6
CREAT: DEFW DOCOL
DEFW DFIND
DEFW ZBRAN ;IF
DEFW CREA1-$
DEFW DROP
DEFW NFA
DEFW IDDOT
DEFW LIT
DEFW 4
DEFW MESS
DEFW SPACE ;ENDIF
CREA1: DEFW HERE
DEFW DUP
DEFW CAT
DEFW WIDTH
DEFW AT
DEFW MIN
DEFW ONEP
DEFW ALLOT
DEFW DUP
DEFW LIT
DEFW 0A0H
DEFW TOGGL
DEFW HERE
DEFW ONEMIN
DEFW LIT
DEFW 80H
DEFW TOGGL
DEFW LATES
DEFW COMMA
DEFW CURR
DEFW AT
DEFW STORE
DEFW HERE
DEFW TWOP
DEFW COMMA
DEFW SEMIS
;
DEFB 0C9H ;[COMPILE]
DM '[COMPILE]'
DEFW CREAT-9
BCOMP: DEFW DOCOL
DEFW DFIND
DEFW ZEQU
DEFW ZERO
DEFW QERR
DEFW DROP
DEFW CFA
DEFW COMMA
DEFW SEMIS
;
DEFB 0C7H ;LITERAL
DM 'LITERAL'
DEFW BCOMP-0CH
LITER: DEFW DOCOL
DEFW STATE
DEFW AT
DEFW ZBRAN ;IF
DEFW LITE1-$
DEFW COMP
DEFW LIT
DEFW COMMA ;ENDIF
LITE1: DEFW SEMIS
;
DEFB 0C8H ;DLITERAL
DM 'DLITERAL'
DEFW LITER-0AH
DLITE: DEFW DOCOL
DEFW STATE
DEFW AT
DEFW ZBRAN ;IF
DEFW DLIT1-$
DEFW SWAP
DEFW LITER
DEFW LITER ;ENDIF
DLIT1: DEFW SEMIS
;
DEFB 86H ;?STACK
DM '?STACK'
DEFW DLITE-0BH
QSTAC: DEFW DOCOL
DEFW SPAT
DEFW SZERO
DEFW AT
DEFW SWAP
DEFW ULESS
DEFW ONE
DEFW QERR
DEFW SPAT
DEFW HERE
DEFW LIT
DEFW 80H
DEFW PLUS
DEFW ULESS
DEFW LIT
DEFW 7
DEFW QERR
DEFW SEMIS
;
DEFB 89H ;INTERPRET
DM 'INTERPRET'
DEFW QSTAC-9
INTER: DEFW DOCOL
INTE1: DEFW DFIND ;BEGIN
DEFW ZBRAN ;IF
DEFW INTE2-$
DEFW STATE
DEFW AT
DEFW LESS
DEFW ZBRAN ;IF
DEFW INTE3-$
DEFW CFA
DEFW COMMA
DEFW BRAN ;ELSE
DEFW INTE4-$
INTE3: DEFW CFA
DEFW EXEC ;ENDIF
INTE4: DEFW QSTAC
DEFW BRAN ;ELSE
DEFW INTE5-$
INTE2: DEFW HERE
DEFW NUMB
DEFW DPL
DEFW AT
DEFW ONEP
DEFW ZBRAN ;IF
DEFW INTE6-$
DEFW DLITE
DEFW BRAN ;ELSE
DEFW INTE7-$
INTE6: DEFW DROP
DEFW LITER ;ENDIF
INTE7: DEFW QSTAC ;ENDIF
INTE5: DEFW BRAN ;AGAIN
DEFW INTE1-$
;
DEFB 89H ;IMMEDIATE
DM 'IMMEDIATE'
DEFW INTER-0CH
IMMED: DEFW DOCOL
DEFW LATES
DEFW LIT
DEFW 40H
DEFW TOGGL
DEFW SEMIS
;
DEFB 8AH ;VOCABULARY
DM 'VOCABULARY'
DEFW IMMED-0CH
VOCAB: DEFW DOCOL
DEFW BUILD
DEFW LIT
DEFW 0A081H
DEFW COMMA
DEFW CURR
DEFW AT
DEFW CFA
DEFW COMMA
DEFW HERE
DEFW VOCL
DEFW AT
DEFW COMMA
DEFW VOCL
DEFW STORE
DEFW DOES
DOVOC: DEFW TWOP
DEFW CONT
DEFW STORE
DEFW SEMIS
;
DEFB 0C5H ;FORTH
DM 'FORTH'
DEFW VOCAB-0DH
FORTH: DEFW DODOE
DEFW DOVOC
DEFW 0A081H
DEFW TASK-7 ;COLD START VALUE ONLY.
; CHANGED EACH TIME A DEF IS APPENDED
; TO THE FORTH VOCABULARY
DEFW 0 ;END OF VOCABULARY LIST
;
DEFB 8BH ;DEFINITIONS
DM 'DEFINITIONS'
DEFW FORTH-8
DEFIN: DEFW DOCOL
DEFW CONT
DEFW AT
DEFW CURR
DEFW STORE
DEFW SEMIS
;
DEFB 0C1H ;(
DM '('
DEFW DEFIN-0EH
PAREN: DEFW DOCOL
DEFW LIT
DEFW 29H
DEFW WORD
DEFW SEMIS
;
DEFB 84H ;QUIT
DM 'QUIT'
DEFW PAREN-4
QUIT: DEFW DOCOL
DEFW ZERO
DEFW BLK
DEFW STORE
DEFW LBRAC
QUIT1: DEFW RPSTO ;BEGIN
DEFW CR
DEFW QUERY
DEFW INTER
DEFW STATE
DEFW AT
DEFW ZEQU
DEFW ZBRAN ;IF
DEFW QUIT2-$
DEFW PDOTQ
DEFB 2
DB 'ok' ;ENDIF
QUIT2: DEFW BRAN ;AGAIN
DEFW QUIT1-$
;
DEFB 85H ;ABORT
DM 'ABORT'
DEFW QUIT-7
ABORT: DEFW DOCOL
DEFW SPSTO
DEFW DEC
DEFW QSTAC
DEFW CR
DEFW DOTCPU
DEFW PDOTQ
DEFB 0EH ;count of CHRs to follow
DB 'fig-FORTH '
DEFB FIGREL+30H,ADOT,FIGREV+30H,USRVER
DEFW FORTH
DEFW DEFIN
DEFW QUIT
;
WRM: LD BC,WRM1
JNEXT
WRM1: DEFW WARM
;
DEFB 84H ;WARM
DM 'WARM'
DEFW ABORT-8
WARM: DEFW DOCOL
DEFW MTBUF
DEFW ABORT
;
CLD: LD HL,(BDOSS+1) ;/
LD L,0 ;/ (HL)<--FBASE
LD (LIMIT+2),HL ;/ set LIMIT
LD DE,BUFSIZ ;/ (DE)<--total disc buffer size
OR A ;/ clr carry
SBC HL,DE ;/ (HL)<--addr. of 1st disc buffer
LD (FIRST+2),HL ;/ set FIRST
LD (USE+2),HL ;/ set USE
LD (PREV+2),HL ;/ set PREV
LD (BUF1),HL ;/
LD DE,US ;/ (DE)<--user variable space
SBC HL,DE ;/ (HL)<--INITR0
LD (UPINIT),HL ;/
LD (R0INIT),HL ;/
LD (UP),HL ;/
LD (RPP),HL ;/
LD DE,RTS ;/ (DE)<--return stack & terminal buffer space
SBC HL,DE ;/ (HL)<--INITS0
LD (S0INIT),HL ;/
LD (TIBINI),HL ;/
LD SP,HL ;/
LD BC,CLD1
LD IX,NEXT ; POINTER TO NEXT
LD IY,HPUSH ; POINTER TO HPUSH
JNEXT
;
CLD1: DEFW COLD
;
DEFB 84H ;COLD
DM 'COLD'
DEFW WARM-7
COLD: DEFW DOCOL
DEFW MTBUF
DEFW ONE,RECADR ;AvdH
DEFW STORE
DEFW LIT,BUF1
DEFW AT ;/
DEFW USE,STORE
DEFW LIT,BUF1
DEFW AT ;/
DEFW PREV,STORE
DEFW DRZER
DEFW ZERO ;/
DEFW LIT,EPRINT
DEFW CSTOR ;/
;
DEFW LIT
DEFW ORIG+12H
DEFW LIT
DEFW UP
DEFW AT
DEFW LIT
DEFW 6
DEFW PLUS
DEFW LIT
DEFW 10H
DEFW CMOVE
DEFW LIT
DEFW ORIG+0CH
DEFW AT
DEFW LIT
DEFW FORTH+6
DEFW STORE
DEFW FCB ;/A
DEFW LIT,OPNFIL ;/A open mass storage
DEFW BDOS ;/A
DEFW LIT,0FFH ;/A
DEFW EQUAL ;/A file present?
DEFW ZBRAN,CLD2-$ ;/A
DEFW ZERO ;/A
DEFW WARN,STORE ;/A
DEFW CR,PDOTQ ;/A
DEFB 7 ;/A
DB 'No file' ;/A
CLD2: DEFW ABORT
;
DEFB 84H ;S->D
DM 'S->D'
DEFW COLD-7
STOD: DEFW $+2
POP DE
LD HL,0
BIT 7,D ;/ # NEGATIVE?
JR Z,STOD1 ; NO
DEC HL ; YES, EXTEND SIGN
STOD1: JP DPUSH ; ( n1--d1L d1H)
;
DEFB 82H ;+-
DM '+-'
DEFW STOD-7
PM: DEFW DOCOL
DEFW ZLESS
DEFW ZBRAN ;IF
DEFW PM1-$
DEFW MINUS ;ENDIF
PM1: DEFW SEMIS
;
DEFB 83H ;D+-
DM 'D+-'
DEFW PM-5
DPM: DEFW DOCOL
DEFW ZLESS
DEFW ZBRAN ;IF
DEFW DPM1-$
DEFW DMINU ;ENDIF
DPM1: DEFW SEMIS
;
DEFB 83H ;ABS
DM 'ABS'
DEFW DPM-6
ABS: DEFW DOCOL
DEFW DUP
DEFW PM
DEFW SEMIS
;
DEFB 84H ;DABS
DM 'DABS'
DEFW ABS-6
DABS: DEFW DOCOL
DEFW DUP
DEFW DPM
DEFW SEMIS
;
DEFB 83H ;MIN
DM 'MIN'
DEFW DABS-7
MIN: DEFW DOCOL,TDUP
DEFW GREAT
DEFW ZBRAN ;IF
DEFW MIN1-$
DEFW SWAP ;ENDIF
MIN1: DEFW DROP
DEFW SEMIS
;
DEFB 83H ;MAX
DM 'MAX'
DEFW MIN-6
MAX: DEFW DOCOL
DEFW TDUP
DEFW LESS
DEFW ZBRAN ;IF
DEFW MAX1-$
DEFW SWAP ;ENDIF
MAX1: DEFW DROP
DEFW SEMIS
;
DEFB 82H ;M*
DM 'M*'
DEFW MAX-6
MSTAR: DEFW DOCOL,TDUP
DEFW XORR
DEFW TOR
DEFW ABS
DEFW SWAP
DEFW ABS
DEFW USTAR
DEFW FROMR
DEFW DPM
DEFW SEMIS
;
DEFB 82H ;M/
DM 'M/'
DEFW MSTAR-5
MSLAS: DEFW DOCOL
DEFW OVER
DEFW TOR
DEFW TOR
DEFW DABS
DEFW RR
DEFW ABS
DEFW USLAS
DEFW FROMR
DEFW RR
DEFW XORR
DEFW PM
DEFW SWAP
DEFW FROMR
DEFW PM
DEFW SWAP
DEFW SEMIS
;
DEFB 81H ; *
DM '*'
DEFW MSLAS-5
STAR: DEFW $+2
EXX ;/ SAVE IP
POP HL
POP DE
LD A,L ;/
LD C,H ;/
LD B,10H ;/
LD HL,0 ;/
STAR1: SRL C ;/
RRA ;/ SRL CA (MPCATOR)
JR NC,STAR2 ;/ LSB (CA)=0?
ADD HL,DE ;/ NO, ADD MPCANT TO HL
STAR2: SLA E ;/
RL D ;/ SLA DE (MPCANT 2 *)
DJNZ STAR1 ;/ DO ALL 16 BITS
PUSH HL ;/ (S1)<--PRODUCT
EXX ;/ RESTORE IP
JNEXT
;
DEFB 84H ; /MOD
DM '/MOD'
DEFW STAR-4
SLMOD: DEFW $+2
POP DE ;/ DIVISOR
POP HL ;/ DIVIDEND
PUSH BC ;/ SAVE IP
XOR A ;/ RESET NEGATE FLAG
EX AF,AF' ;/ ALT SET
LD A,D ;/
OR E ;/ DIV BY 0?
JR NZ,SLMOD1 ;/
LD HL,-1 ;/ YES
LD D,H ;/
LD E,L ;/ QUOT & REM <-- -1
JR SLMOD7 ;/ EXIT
SLMOD1: BIT 7,D ;/ DIVISOR NEGATIVE?
JR Z,SLMOD2 ;/
LD A,E ;/ YES
CPL ;/
LD E,A ;/
LD A,D ;/
CPL ;/
LD D,A ;/
INC DE ;/ (DE)<--(DE)'s 2's COMPLEMENT
EX AF,AF' ;/ STD SET
SCF ;/ SET NEGATE FLAG
EX AF,AF' ;/ ALT SET
SLMOD2: BIT 7,H ;/ DIVIDEND NEGATIVE?
JR Z,SLMOD3 ;/
LD A,L ;/ YES
CPL ;/
LD L,A ;/
LD A,H ;/
CPL ;/
LD H,A ;/
INC HL ;/ (HL)<--(HL)'s 2's COMPLEMENT
EX AF,AF' ;/ STD SET
CCF ;/ NEGATE FLAG
INC A ;/ DIVIDEND SIGN FLAG
EX AF,AF' ;/ ALT SET
SLMOD3: LD A,L ;/
LD C,H ;/ (CA)<--DIVIDEND
LD HL,0 ;/ PRIME REMAINDER
LD B,10H ;/ LOOP COUNTER
SLMOD4: RLA ;/
RL C ;/ RL CA
ADC HL,HL ;/ (HL)<--(HL) 2 * CARRY +
SBC HL,DE ;/ UNDERFLOW?
JR NC,SLMOD5 ;/ NO
ADD HL,DE ;/ YES, RESTORE REMAINDER
SLMOD5: CCF ;/
DJNZ SLMOD4 ;/ DO ALL 16 BITS
RLA ;/
RL C ;/ RL CA
LD E,A ;/
LD D,C ;/ (DE)<--QUOTIENT
EX AF,AF' ;/ STD SET
JR Z,SLMOD6 ;/ DIVIDEND POSITIVE
LD A,L ;/
CPL ;/
LD L,A ;/
LD A,H ;/
CPL ;/
LD H,A ;/
INC HL ;/ REM GETS DIVIDEND'S SIGN
SLMOD6: JR NC,SLMOD7 ;/ QUOTIENT POSITIVE
LD A,E ;/
CPL ;/
LD E,A ;/
LD A,D ;/
CPL ;/
LD D,A ;/
INC DE ;/ NEGATIVE QUOTIENT
SLMOD7: POP BC ;/ RESTORE IP
EX DE,HL ;/ (S2)<--REMAINDER
JP DPUSH ;/ (S1)<--QUOTIENT
;
DEFB 81H ; /
DM '/'
DEFW SLMOD-7
SLASH: DEFW $+2
POP DE ;/ DIVISOR
POP HL ;/ DIVIDEND
PUSH BC ;/ SAVE IP
XOR A ;/ RESET NEG. FLAG
EX AF,AF' ;/ ALT SET
LD A,D ;/
OR E ;/ DIV BY 0?
JR NZ,SLASH1 ;/
LD HL,-1 ;/ YES, SET QUOTIENT TO -1
JR SLASH6 ;/ EXIT
SLASH1: BIT 7,D ;/ DIVISOR NEGATIVE?
JR Z,SLASH2 ;/
LD A,E ;/ YES
CPL ;/
LD E,A ;/
LD A,D ;/
CPL ;/
LD D,A ;/
INC DE ;/ (DE)<--(DE)'s 2's COMPLEMENT
EX AF,AF' ;/ STD SET
SCF ;/ SET NEG. FLAG
EX AF,AF' ;/ ALT SET
SLASH2: BIT 7,H ;/ DIVIDEND NEGATIVE?
JR Z,SLASH3 ;/
LD A,L ;/ YES
CPL ;/
LD L,A ;/
LD A,H ;/
CPL ;/
LD H,A ;/
INC HL ;/ (HL)<--(HL)'s 2's COMPLEMENT
EX AF,AF' ;/ STD SET
CCF ;/ NEG. FLAG
EX AF,AF' ;/ ALT SET
SLASH3: LD A,L ;/
LD C,H ;/ (CA)<--DIVIDEND
LD HL,0 ;/
LD B,10H ;/ LOOP COUNTER
SLASH4: RLA ;/
RL C ;/ RL CA
ADC HL,HL ;/ (HL)<--(HL) 2 * CARRY +
SBC HL,DE ;/ UNDERFLOW?
JR NC,SLASH5 ;/ NO
ADD HL,DE ;/ YES, RESTORE REMAINDER
SLASH5: CCF ;/
DJNZ SLASH4 ;/ DO ALL 16 BITS
RLA ;/
RL C ;/ RL CA
LD L,A ;/
LD H,C ;/ (HL)<--QUOTIENT
EX AF,AF' ;/ STD SET
JR NC,SLASH6 ;/ POSITIVE QUOTIENT
LD A,L ;/
CPL ;/
LD L,A ;/
LD A,H ;/
CPL ;/
LD H,A ;/
INC HL ;/ NEGATIVE QUOTIENT
SLASH6: POP BC ;/ RESTORE IP
JHPUSH
;
DEFB 83H ; MOD
DM 'MOD'
DEFW SLASH-4
MODD: DEFW DOCOL
DEFW SLMOD
DEFW DROP
DEFW SEMIS
;
DEFB 85H ; */MOD
DM '*/MOD'
DEFW MODD-6
SSMOD: DEFW DOCOL
DEFW TOR
DEFW MSTAR
DEFW FROMR
DEFW MSLAS
DEFW SEMIS
;
DEFB 82H ; */
DM '*/'
DEFW SSMOD-8
SSLA: DEFW DOCOL
DEFW SSMOD
DEFW SWAP
DEFW DROP
DEFW SEMIS
;
DEFB 85H ; M/MOD
DM 'M/MOD'
DEFW SSLA-5
MSMOD: DEFW DOCOL
DEFW TOR
DEFW ZERO
DEFW RR
DEFW USLAS
DEFW FROMR
DEFW SWAP
DEFW TOR
DEFW USLAS
DEFW FROMR
DEFW SEMIS
;
; Block moved down 2 pages
;
DEFB 86H ; (LINE)
DM '(LINE)'
DEFW MSMOD-8
PLINE: DEFW DOCOL
DEFW TOR
DEFW LIT
DEFW 40H
DEFW BBUF
DEFW SSMOD
DEFW FROMR
DEFW BSCR
DEFW STAR
DEFW PLUS
DEFW BLOCK
DEFW PLUS
DEFW LIT
DEFW 40H
DEFW SEMIS
;
DEFB 85H ; .LINE
DM '.LINE'
DEFW PLINE-9
DLINE: DEFW DOCOL
DEFW PLINE
DEFW DTRAI
DEFW TYPE
DEFW SEMIS
;
DEFB 87H ;MESSAGE
DM 'MESSAGE'
DEFW DLINE-8
MESS: DEFW DOCOL
DEFW WARN
DEFW AT
DEFW ZBRAN ;IF
DEFW MESS1-$
DEFW DDUP
DEFW ZBRAN ;IF
DEFW MESS2-$
DEFW LIT
DEFW 4 ;1st MESSAGE SCREEN
DEFW OFSET
DEFW AT
DEFW BSCR
DEFW SLASH
DEFW SUBB
DEFW DLINE
DEFW SPACE ;ENDIF
MESS2: DEFW BRAN ;ELSE
DEFW MESS3-$
MESS1: DEFW PDOTQ
DEFB 6
DB 'MSG # '
DEFW DOT ;ENDIF
MESS3: DEFW SEMIS
;
DEFB 82H ;P@
DM 'P@'
DEFW MESS-0AH
PTAT: DEFW $+2
EXX ;d SAVE REGISTERS
POP BC ;d (BC)<--PORT#
IN L,(C) ;d (L)<--DATA BYTE
LD H,0
PUSH HL
EXX ;d RESTORE REGISTERS
JNEXT
;
DEFB 82H ;P!
DM 'P!'
DEFW PTAT-5
PTSTO: DEFW $+2
EXX ;d SAVE REGISTERS
POP BC ;d (C)<--PORT#
POP HL ;d (L)<--DATA BYTE
OUT (C),L
EXX ;d RESTORE REGISTERS
JNEXT
;
FORM
*INCLUDE DISCIO.FTH
FORM
*INCLUDE CONPRTIO.FTH
FORM
;
DEFB 0C1H ; ' (tick)
DEFB 0A7H
DEFW ARROW-6
TICK: DEFW DOCOL
DEFW DFIND
DEFW ZEQU
DEFW ZERO
DEFW QERR
DEFW DROP
DEFW LITER
DEFW SEMIS
;
DEFB 86H ;FORGET
DM 'FORGET'
DEFW TICK-4
FORG: DEFW DOCOL
DEFW CURR
DEFW AT
DEFW CONT
DEFW AT
DEFW SUBB
DEFW LIT
DEFW 18H
DEFW QERR
DEFW TICK
DEFW DUP
DEFW FENCE
DEFW AT
DEFW uless ;/ FORGET >8000h nw o.k.
DEFW LIT
DEFW 15H
DEFW QERR
DEFW DUP
DEFW NFA
DEFW DP
DEFW STORE
DEFW LFA
DEFW AT
DEFW CONT
DEFW AT
DEFW STORE
DEFW SEMIS
;
DEFB 84H ;BACK
DM 'BACK'
DEFW FORG-9
BACK: DEFW DOCOL
DEFW HERE
DEFW SUBB
DEFW COMMA
DEFW SEMIS
;
DEFB 0C5H ;BEGIN
DM 'BEGIN'
DEFW BACK-7
BEGIN: DEFW DOCOL
DEFW QCOMP
DEFW HERE
DEFW ONE
DEFW SEMIS
;
DEFB 0C5H ;ENDIF
DM 'ENDIF'
DEFW BEGIN-8
ENDIFF: DEFW DOCOL
DEFW QCOMP
DEFW TWO
DEFW QPAIR
DEFW HERE
DEFW OVER
DEFW SUBB
DEFW SWAP
DEFW STORE
DEFW SEMIS
;
DEFB 0C4H ;THEN
DM 'THEN'
DEFW ENDIFF-8
THEN: DEFW DOCOL
DEFW ENDIFF
DEFW SEMIS
;
DEFB 0C2H ;DO
DM 'DO'
DEFW THEN-7
DO: DEFW DOCOL
DEFW COMP
DEFW XDO
DEFW HERE
DEFW THREE
DEFW SEMIS
;
DEFB 0C4H ;LOOP
DM 'LOOP'
DEFW DO-5
LOOP: DEFW DOCOL
DEFW THREE
DEFW QPAIR
DEFW COMP
DEFW XLOOP
DEFW BACK
DEFW SEMIS
;
DEFB 0C5H ;+LOOP
DM '+LOOP'
DEFW LOOP-7
PLOOP: DEFW DOCOL
DEFW THREE
DEFW QPAIR
DEFW COMP
DEFW XPLOO
DEFW BACK
DEFW SEMIS
;
DEFB 0C5H ;UNTIL
DM 'UNTIL'
DEFW PLOOP-8
UNTIL: DEFW DOCOL
DEFW ONE
DEFW QPAIR
DEFW COMP
DEFW ZBRAN
DEFW BACK
DEFW SEMIS
;
DEFB 0C3H ;END
DM 'END'
DEFW UNTIL-8
ENDD: DEFW DOCOL
DEFW UNTIL
DEFW SEMIS
;
DEFB 0C5H ;AGAIN
DM 'AGAIN'
DEFW ENDD-6
AGAIN: DEFW DOCOL
DEFW ONE
DEFW QPAIR
DEFW COMP
DEFW BRAN
DEFW BACK
DEFW SEMIS
;
DEFB 0C6H ;REPEAT
DM 'REPEAT'
DEFW AGAIN-8
REPEA: DEFW DOCOL
DEFW TOR
DEFW TOR
DEFW AGAIN
DEFW FROMR
DEFW FROMR
DEFW TWOMIN ;/
DEFW ENDIFF
DEFW SEMIS
;
DEFB 0C2H ;IF
DM 'IF'
DEFW REPEA-9
IFF: DEFW DOCOL
DEFW COMP
DEFW ZBRAN
DEFW HERE
DEFW ZERO
DEFW COMMA
DEFW TWO
DEFW SEMIS
;
DEFB 0C4H ;ELSE
DM 'ELSE'
DEFW IFF-5
ELSEE: DEFW DOCOL
DEFW TWO
DEFW QPAIR
DEFW COMP
DEFW BRAN
DEFW HERE
DEFW ZERO
DEFW COMMA
DEFW SWAP
DEFW TWO
DEFW ENDIFF
DEFW TWO
DEFW SEMIS
;
DEFB 0C5H ;WHILE
DM 'WHILE'
DEFW ELSEE-7
WHILE: DEFW DOCOL
DEFW IFF
DEFW TWOP
DEFW SEMIS
;
DEFB 86H ;SPACES
DM 'SPACES'
DEFW WHILE-8
SPACS: DEFW DOCOL
DEFW ZERO
DEFW MAX
DEFW DDUP
DEFW ZBRAN ;IF
DEFW SPAX1-$
DEFW ZERO
DEFW XDO ;DO
SPAX2: DEFW SPACE
DEFW XLOOP ;LOOP ENDIF
DEFW SPAX2-$
SPAX1: DEFW SEMIS
;
DEFB 82H ;<#
DM '<#'
DEFW SPACS-9
BDIGS: DEFW DOCOL
DEFW PAD
DEFW HLD
DEFW STORE
DEFW SEMIS
;
DEFB 82H ;#>
DM '#>'
DEFW BDIGS-5
EDIGS: DEFW DOCOL
DEFW DROP
DEFW DROP
DEFW HLD
DEFW AT
DEFW PAD
DEFW OVER
DEFW SUBB
DEFW SEMIS
;
DEFB 84H ;SIGN
DM 'SIGN'
DEFW EDIGS-5
SIGN: DEFW DOCOL
DEFW ROT
DEFW ZLESS
DEFW ZBRAN ;IF
DEFW SIGN1-$
DEFW LIT
DEFW 2DH
DEFW HOLD ;ENDIF
SIGN1: DEFW SEMIS
;
DEFB 81H ;#
DM '#'
DEFW SIGN-7
DIG: DEFW DOCOL
DEFW BASE
DEFW AT
DEFW MSMOD
DEFW ROT
DEFW LIT
DEFW 9
DEFW OVER
DEFW LESS
DEFW ZBRAN ;IF
DEFW DIG1-$
DEFW LIT
DEFW 7
DEFW PLUS ;ENDIF
DIG1: DEFW LIT
DEFW 30H
DEFW PLUS
DEFW HOLD
DEFW SEMIS
;
DEFB 82H ;#S
DM '#S'
DEFW DIG-4
DIGS: DEFW DOCOL
DIGS1: DEFW DIG ;BEGIN
DEFW TDUP ;/
DEFW ORR
DEFW ZEQU
DEFW ZBRAN ;UNTIL
DEFW DIGS1-$
DEFW SEMIS
;
DEFB 83H ;D.R
DM 'D.R'
DEFW DIGS-5
DDOTR: DEFW DOCOL
DEFW TOR
DEFW SWAP
DEFW OVER
DEFW DABS
DEFW BDIGS
DEFW DIGS
DEFW SIGN
DEFW EDIGS
DEFW FROMR
DEFW OVER
DEFW SUBB
DEFW SPACS
DEFW TYPE
DEFW SEMIS
;
DEFB 82H ;.R
DM '.R'
DEFW DDOTR-6
DOTR: DEFW DOCOL
DEFW TOR
DEFW STOD
DEFW FROMR
DEFW DDOTR
DEFW SEMIS
;
DEFB 82H ;D.
DM 'D.'
DEFW DOTR-5
DDOT: DEFW DOCOL
DEFW ZERO
DEFW DDOTR
DEFW SPACE
DEFW SEMIS
;
DEFB 81H ; .
DM '.'
DEFW DDOT-5
DOT: DEFW DOCOL
DEFW STOD
DEFW DDOT
DEFW SEMIS
;
DEFB 81H ;?
DM '?'
DEFW DOT-4
QUES: DEFW DOCOL
DEFW AT
DEFW DOT
DEFW SEMIS
;
DEFB 82H ;U.
DM 'U.'
DEFW QUES-4
UDOT: DEFW DOCOL
DEFW ZERO
DEFW DDOT
DEFW SEMIS
;
DEFB 85H ;VLIST
DM 'VLIST'
DEFW UDOT-5
VLIST: DEFW DOCOL
DEFW LIT
DEFW 80H
DEFW OUTT
DEFW STORE
DEFW CONT
DEFW AT
DEFW AT
VLIS1: DEFW OUTT ;BEGIN
DEFW AT
DEFW CSLL
DEFW GREAT
DEFW ZBRAN ;IF
DEFW VLIS2-$
DEFW CR
DEFW ZERO
DEFW OUTT
DEFW STORE ;ENDIF
VLIS2: DEFW DUP
DEFW IDDOT
DEFW SPACE
DEFW SPACE
DEFW PFA
DEFW LFA
DEFW AT
DEFW DUP
DEFW ZEQU
DEFW QTERM
DEFW ORR
DEFW ZBRAN ;UNTIL
DEFW VLIS1-$
DEFW DROP
DEFW SEMIS
;
DEFB 83H ;BYE
DM 'BYE'
DEFW VLIST-8
BYE: DEFW DOCOL ;/A
DEFW FLUSH ;/A
DEFW FCB,LIT ;/E
DEFW 10H,BDOS ;/E close file
DEFW DROP ;/E discard directory code
DEFW ZERO,ZERO ;/A
DEFW BDOS ;/A return to CP/M
DEFW SEMIS ;/A won't get this far, just for pretty
;
DEFB 84H ;LIST
DM 'LIST'
DEFW BYE-6
LIST: DEFW DOCOL,DEC
DEFW CR,DUP
DEFW SCR,STORE
DEFW PDOTQ
DEFB 6
DB 'SCR # '
DEFW DOT
DEFW LIT,10H
DEFW ZERO,XDO
LIST1: DEFW CR,IDO
DEFW THREE ;/ WAS LIT,3
DEFW DOTR,SPACE
DEFW IDO,SCR
DEFW AT,DLINE
DEFW QTERM
DEFW ZBRAN,LIST2-$ ;IF
DEFW LEAVE
LIST2: DEFW XLOOP,LIST1-$ ;ENDIF
DEFW CR,SEMIS
;
DEFB 85H ;INDEX
DM 'INDEX'
DEFW LIST-7
INDEX: DEFW DOCOL
DEFW LIT,FF
DEFW EMIT,CR
DEFW ONEP,SWAP
DEFW XDO
INDE1: DEFW CR,IDO
DEFW THREE ;/ WAS LIT,3
DEFW DOTR,SPACE
DEFW ZERO,IDO
DEFW DLINE,QTERM
DEFW ZBRAN,INDE2-$ ;IF
DEFW LEAVE ;ENDIF
INDE2: DEFW XLOOP,INDE1-$
DEFW SEMIS
;
DEFB 85H ;TRIAD
DM 'TRIAD'
DEFW INDEX-8
TRIAD: DEFW DOCOL
DEFW LIT,FF
DEFW EMIT
DEFW THREE ;/ WAS LIT,3
DEFW SLASH
DEFW THREE ;/ WAS LIT,3
DEFW STAR
DEFW THREE ;/ WAS LIT,3
DEFW OVER,PLUS
DEFW SWAP,XDO
TRIA1: DEFW CR,IDO
DEFW LIST
DEFW QTERM
DEFW ZBRAN,TRIA2-$ ;IF
DEFW LEAVE
TRIA2: DEFW XLOOP,TRIA1-$ ;ENDIF
DEFW CR
DEFW LIT,15
DEFW MESS,CR
DEFW SEMIS
;
DEFB 84H ;.CPU
DM '.CPU'
DEFW TRIAD-8
DOTCPU: DEFW DOCOL
DEFW BASE,AT
DEFW LIT,36
DEFW BASE,STORE
DEFW LIT,22H
DEFW PORIG,TAT
DEFW DDOT
DEFW BASE,STORE
DEFW SEMIS
;
DEFB 84H ;TASK
DM 'TASK'
DEFW DOTCPU-7
TASK: DEFW DOCOL
DEFW SEMIS
;
INITDP: DEFW 0
;
END
| file: /Techref/language/forth/z80fig-Forth1_1g_files/Z80FORTH.ASM, 53KB, , updated: 1997/12/31 08:21, local time: 2024/11/17 22:46,
3.138.138.66:LOG IN
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