Apple-2-SW/A2osX
1
0
Fork 0
mirror of https://github.com/A2osX/A2osX.git synced 2024-06-07 01:29:33 +00:00
Code Issues Projects Releases Wiki Activity
67878e93ce
A2osX/BIN/FORTH.S.KW.txt
Rémy GIBERT 67878e93ce Kernel 0.94
2020-11-19 16:34:02 +01:00

770 lines
12 KiB
Plaintext
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

NEW
AUTO 3,1
*--------------------------------------
KW.Lookup >LDYA L.KEYWORDS
>STYA ZPPtr1
>LDYA ZPCLBufPtr
>STYA ZPPtr2
ldx #0
.1 ldy #$ff
.2 jsr .7 get next valid char in src text
bcs .3
.20 jsr ToUpperCase
eor (ZPPtr1),y match table char ?
asl compare only 7 bits
bne .4 no match...get next table keyword
bcc .2 not last char in this keyword
jsr .7 next char in text...
bcc .4 valid....failed
.8 tya Keyword Len
clc
rts
.3 dey
lda (ZPPtr1),y was last char in this keyword ?
bmi .8
iny
.41 jsr IncPtr1 skip chars to next keyword
.4 lda (ZPPtr1)
bpl .41
jsr IncPtr1
.6 inx
lda (ZPPtr1) Array Ending 0, lookup failed
bne .1
.9 sec
rts
.7 iny
lda (ZPPtr2),y Get Src text char...
beq .9 end of text
jsr IsSpaceOrCR
bcc .9 end of valid chars
clc
rts
*--------------------------------------
KW.DUP lda pStack
sec
sbc #2
bcc .9
lda (pStack)
tax
ldy #1
lda (pStack),y
>PUSHA
txa
>PUSHA
clc
rts
.9 lda #E.STKOVERFLOW
sec
rts
*--------------------------------------
KW.DROP lda pStack
beq .9
inc pStack
beq .9
inc pStack
clc
rts
.9 lda #E.STACKERROR
sec
rts
*--------------------------------------
KW.SWAP ldy #3
lda (pStack),y
pha
dey #2
lda (pStack),y
pha
lda (pStack)
tax
pla
sta (pStack)
txa
sta (pStack),y #2
dey #1
lda (pStack),y
tax
pla
sta (pStack),y
iny
iny #3
txa
sta (pStack),y
clc
rts
*--------------------------------------
KW.OVER lda pStack
sec
sbc #2
bcc .9
ldy #3
lda (pStack),y
>PUSHA
lda (pStack),y
>PUSHA
clc
rts
.9 lda #E.STKOVERFLOW
sec
rts
*--------------------------------------
KW.ROT
*--------------------------------------
KW.mDUP
*--------------------------------------
KW.gR
*--------------------------------------
KW.Rg
*--------------------------------------
KW.R
clc
rts
*--------------------------------------
KW.Add jsr CheckStackPop4
bcs .9
clc
ldy #2
lda (pStack),y
adc (pStack)
sta (pStack),y
inc pStack
lda (pStack),y
adc (pStack)
sta (pStack),y
inc pStack
clc
.9 rts
*--------------------------------------
KW.DAdd >FPU ADD32
clc
rts
*--------------------------------------
KW.Sub jsr CheckStackPop4
bcs .9
sec
ldy #2
lda (pStack),y
sbc (pStack)
sta (pStack),y
inc pStack
lda (pStack),y
sbc (pStack)
sta (pStack),y
inc pStack
clc
.9 rts
*--------------------------------------
KW.Mul
*--------------------------------------
KW.Div
*--------------------------------------
KW.Mod
*--------------------------------------
KW.DivMod
*--------------------------------------
KW.MulDivMod
*--------------------------------------
KW.MulDiv
*--------------------------------------
KW.MAX jsr CheckStackPop4
bcs .9
lda (pStack) LO
ldy #2
cmp (pStack),y
dey #1
lda (pStack),y HI
iny
iny #3
sbc (pStack),y
bcc .1
jsr KW.SWAP
.1 jmp KW.DROP
.9 rts
*--------------------------------------
KW.MIN jsr CheckStackPop4
bcs .9
lda (pStack) LO
ldy #2
cmp (pStack),y
dey #1
lda (pStack),y HI
iny
iny #3
sbc (pStack),y
bcs .1
jsr KW.SWAP
.1 jmp KW.DROP
.9 rts
*--------------------------------------
KW.ABS
*--------------------------------------
KW.DABS
clc
rts
*--------------------------------------
KW.MINUS lda (pStack) LO
eor #$ff
sec
adc #0
sta (pStack)
ldy #1
lda (pStack),y HI
eor #$ff
adc #0
sta (pStack),y
clc
rts
*--------------------------------------
KW.DMINUS lda (pStack) LO
eor #$ff
sec
adc #0
sta (pStack)
ldy #1
lda (pStack),y HI
eor #$ff
adc #0
sta (pStack),y
iny
lda (pStack),y
eor #$ff
adc #0
sta (pStack),y
iny
lda (pStack),y
eor #$ff
adc #0
sta (pStack),y
clc
rts
*--------------------------------------
KW.AND jsr CheckStackPop4
bcs .9
ldy #2
lda (pStack),y
and (pStack)
sta (pStack),y
inc pStack
lda (pStack),y
and (pStack)
sta (pStack),y
inc pStack
clc
.9 rts
*--------------------------------------
KW.OR jsr CheckStackPop4
bcs .9
ldy #2
lda (pStack),y
ora (pStack)
sta (pStack),y
inc pStack
lda (pStack),y
ora (pStack)
sta (pStack),y
inc pStack
clc
.9 rts
*--------------------------------------
KW.XOR jsr CheckStackPop4
bcs .9
ldy #2
lda (pStack),y
eor (pStack)
sta (pStack),y
inc pStack
lda (pStack),y
eor (pStack)
sta (pStack),y
inc pStack
clc
.9 rts
*--------------------------------------
KW.LWR jsr CheckStackPop4
bcs .9
ldy #2
lda (pStack),y
cmp (pStack)
inc pStack
lda (pStack),y
sbc (pStack),y
inc pStack
inc pStack
rol
sta (pStack)
clc
.9 rts
*--------------------------------------
KW.GTR jsr CheckStackPop4
bcs .9
ldy #2
lda (pStack),y
cmp (pStack)
inc pStack
lda (pStack),y
sbc (pStack),y
inc pStack
inc pStack
rol
eor #$80
sta (pStack)
clc
.9 rts
*--------------------------------------
KW.EQ jsr CheckStackPop4
bcs .9
ldy #2
lda (pStack),y
sec
sbc (pStack)
tax
inc pStack
lda (pStack),y
sbc (pStack),y
inc pStack
inc pStack
bcc .1
txa
bne .1
sec
.HS 90 BCC
.1 clc
ror
sta (pStack)
clc
.9 rts
*--------------------------------------
KW.NEGATIVE >PULLA
>PULLA
bpl .9
sec
.HS 90 BCC
.9 clc
ror
sta (pStack)
clc
rts
*--------------------------------------
KW.ZERO >PULLA
tax
>PULLA
bne .9
txa
bne .9
sec
.HS 90 BCC
.9 clc
ror
sta (pStack)
clc
rts
*--------------------------------------
KW.. jsr KW.DUP
bcs .9
ldy #2
lda L.FMT.int16
sta (pStack),y
iny
lda L.FMT.int16+1
sta (pStack),y
>PUSHBI 2
>SYSCALL PrintF
* clc
.9 rts
*--------------------------------------
KW..R
*--------------------------------------
KW.D.
*--------------------------------------
KW.D.R
clc
rts
*--------------------------------------
KW.CR >PUSHW L.MSG.ECHOCRLF
>PUSHBI 0
>SYSCALL PrintF
rts
*--------------------------------------
KW.SPACE lda #C.SPACE
>SYSCALL PutChar
rts
*--------------------------------------
KW.SPACES >PULLA
beq .8
.1 dec
pha
lda #C.SPACE
>SYSCALL PutChar
pla
bne .1
.8 clc
rts
*--------------------------------------
KW.PRINT >LDYAI 256
>SYSCALL GetMem
bcs .9
>STYA ZPPtr1
phx
ldy #$ff
clc
.1 iny
lda (ZPCLBufPtr),y
beq .2
sta (ZPPtr1),y
eor #'"
bne .1
sec
.2 sta (ZPPtr1),y
tya
adc ZPCLBufPtr
sta ZPCLBufPtr
bcc .3
inc ZPCLBufPtr+1
.3 >LDYA ZPPtr1
>SYSCALL PutS
pla
>SYSCALL freemem
jmp NextChar
.9 rts
*--------------------------------------
KW.DUMP
*--------------------------------------
KW.TYPE
*--------------------------------------
KW.COUNT
*--------------------------------------
KW.TERMINAL
clc
rts
*--------------------------------------
KW.KEY >SYSCALL GetChar
bcs .9
>PUSHA
.9 rts
*--------------------------------------
KW.EMIT >PULLA
>SYSCALL PutChar
rts
*--------------------------------------
KW.EXPECT
*--------------------------------------
KW.WORD
*--------------------------------------
KW.NUMBER
*--------------------------------------
KW.STARTSTR
*--------------------------------------
KW.STRADD
*--------------------------------------
KW.STRDBL
*--------------------------------------
KW.SIGN
*--------------------------------------
KW.ENDSTR
*--------------------------------------
KW.HOLD
*--------------------------------------
KW.DECIMAL
*--------------------------------------
KW.HEX
*--------------------------------------
KW.OCTAL clc
rts
*--------------------------------------
KW.FETCHW lda (pStack)
sta ZPAddrPtr
ldy #1
lda (pStack),y
sta ZPAddrPtr+1
lda (ZPAddrPtr)
sta (pStack)
lda (ZPAddrPtr),y
sta (pStack),y
clc
rts
*--------------------------------------
KW.STOREW jsr CheckStackPop4
bcs .9
>PULLW ZPAddrPtr
>PULLA
sta (ZPAddrPtr)
>PULLA
ldy #1
sta (ZPAddrPtr),y
* clc
.9 rts
*--------------------------------------
KW.FETCHB >PULLW ZPAddrPtr
lda (ZPAddrPtr)
>PUSHA
clc
rts
*--------------------------------------
KW.STOREB >PULLW ZPAddrPtr
>PULLA
sta (ZPAddrPtr)
clc
KW.STOREB.RTS rts
*--------------------------------------
KW.FETCHPRINTW jsr KW.FETCHW
bcs KW.STOREB.RTS
jmp KW..
*--------------------------------------
KW.ADDTOW jsr KW.FETCHW
bcs KW.STOREB.RTS
jsr KW.Add
bcs KW.STOREB.RTS
jmp KW.STOREW
*--------------------------------------
KW.CMOVE
clc
rts
*--------------------------------------
KW.FILL >PULLA
bra KW.FILL2
KW.ERASE lda #0
bra KW.FILL2
KW.BLANKS lda #C.SPACE
KW.FILL2 tax
>PULLA
tay
>PULLW ZPAddrPtr
txa
.1 dey
sta (ZPAddrPtr),y
cpy #0
bne .1
clc
rts
*--------------------------------------
KW.HERE >PUSHW ZPUsrBufPtr
clc
rts
*--------------------------------------
KW.PAD >PUSHW ZPPadBuf
clc
rts
*--------------------------------------
KW.ALLOT
KW.nCOMPILE
KW.QUOTE
KW.FORGET
KW.DEFINITIONS
KW.VOCABULARY
KW.FORTH
KW.EDITOR
KW.ASSEMBLER
KW.VLIST
clc
rts
*--------------------------------------
KW.BCOLON
clc
rts
*--------------------------------------
KW.ECOLON
clc
rts
*--------------------------------------
KW.VARIABLE >PUSHB.G hSList
>PUSHW ZPCLBufPtr
>SYSCALL SListNewKey
bcs .9
>STYA ZPKeyID
txa
jsr NextKW
>LDYA L.PUSHADDR
>STYA ZPUsrCodePtr
>PUSHB.G hSList
>PUSHW ZPKeyID
>PUSHWI ZPUsrBufPtr
>PUSHWI 4 BufPtr+CodePtr
>SYSCALL SListAddData
bcs .9
>PULLA
sta (ZPUsrBufPtr)
>PULLA
ldy #1
sta (ZPUsrBufPtr),y
lda ZPUsrBufPtr
clc
adc #2
sta ZPUsrBufPtr
bcc .9
inc ZPUsrBufPtr+1
clc
.9 rts
*--------------------------------------
KW.CONSTANT
*--------------------------------------
KW.ACODE
*--------------------------------------
KW.FCODE
*--------------------------------------
KW.DO
*--------------------------------------
KW.LOOP
*--------------------------------------
PW.pLOOP
*--------------------------------------
KW.I
*--------------------------------------
KW.LEAVE
*--------------------------------------
KW.IF
*--------------------------------------
KW.ELSE
*--------------------------------------
KW.ENDIF
*--------------------------------------
KW.BEGIN
*--------------------------------------
KW.UNTIL
*--------------------------------------
KW.REPEAT
*--------------------------------------
KW.WHILE
clc
rts
*--------------------------------------
KW.COMMENT clc
rts
*--------------------------------------
MAN
SAVE usr/src/bin/forth.s.kw
LOAD usr/src/bin/forth.s
ASM
Reference in New Issue View Git Blame Copy Permalink