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A2osX/SYS/KERNEL.S.CIO.txt

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PR#3
PREFIX /A2OSX.SRC
NEW
INC 1
AUTO 6
.LIST OFF
*--------------------------------------
* PULLW PString to scan (ex: "192.168.1.5")
* PULLW PString pattern (ex: "%d.%d.%d.%d")
* PULLW PTR to target buffer
*--------------------------------------
K.SScanF jsr PullPtr1Ptr2Ptr3
ldy #0 Y = PTR in pattern
lda (ZPQuickPtr1)
beq .9
tax X = COUNT to scan
inc ZPQuickPtr1
bne .1
inc ZPQuickPtr1+1
.1 txa End Of String?
beq .8
tya
cmp (ZPQuickPtr2) End of pattern?
beq .8
iny
lda (ZPQuickPtr2),y
cmp #'%' Escape?
beq .2
cmp (ZPQuickPtr1) Same char?
bne .9
jsr K.SScanF.IncPtr1
bne .1
clc
rts
.2 tya
cmp (ZPQuickPtr2) unexpected End of pattern after "%" ?
beq .9
iny
lda (ZPQuickPtr2),y
cmp #'d' BYTE ?
bne .3
stz ASCBUF
.20 lda (ZPQuickPtr1)
jsr K.SScanF.IsDigit
bcs .21
phx
inc ASCBUF
ldx ASCBUF
sta ASCBUF,x
plx
jsr K.SScanF.IncPtr1
bne .20 end of string ?
.21 jsr DEC2HEX
lda HEXBUF
sta (ZPQuickPtr3)
inc ZPQuickPtr3
bne .1
inc ZPQuickPtr3+1
bra .1
.3 cmp #'D' WORD ?
bne .4
bra .1
.4 cmp #'s' STRING ?
bne .9
bra .1
.8 clc
rts
.9 sec
rts
*--------------------------------------
K.SScanF.IncPtr1 dex
beq .1
inc ZPQuickPtr1
bne .1
inc ZPQuickPtr1+1 never Zero
.1 rts
*--------------------------------------
K.SScanF.IsDigit cmp #'0'
bcc .1
cmp #'9'+1
bcs .1
rts
.1 sec
rts
*--------------------------------------
* K.PrintFYA :
* Prints C-Style String
* Y,A = PTR to Sting,Last Byte negative
*--------------------------------------
* %a pull 2 bytes to Print Access right String drwxrwxrwx
* %b pull 1 byte to Print BIN
* %B pull 2 bytes to Print BIN
* %d pull 1 byte unsigned DEC 0..255
* %D pull 2 bytes unsigned DEC 0..65535
* %u pull 2 bytes PTR to 4 bytes long unsigned DEC 0..4294967295
* %e pull 2 bytes PTR to 6 Bytes Real +1.23456789e+12
* %f pull 2 bytes PTR to 6 Bytes Real 3.1415
* %h pull 1 byte to Print HEX
* %H pull 2 bytes to Print HEX
* %i pull 1 byte to Print signed DEC -128..127
* %I pull 2 bytes to Print signed DEC -32768..32767
* %L pull 2 bytes PTR to 4 bytes signed DEC -2147483648..2147483647
* %n pull 1 byte to Print low Nibble HEX
* %N pull 1 byte to Print high Nibble HEX
* %s pull 2 bytes ptr to C-Style String
* %S pull 2 bytes ptr to P-Style String
* \e Print 'ESC' ($1B,27)
* \n Print CR=13
* \\ Print \
* \% Print %
* len/padding :
* %d '9' '12'
* %2d ' 9' '12'
* %02d '09' '12'
* %11s 'ABCDEFGH '
* %011s 'ABCDEFGH000'
* %2f '3.14'
*--------------------------------------
K.PrintFYA >STYA ZPQuickPtr1
ldy #0
.1 lda (ZPQuickPtr1),y
beq .99
cmp #'%'
bne .10
stz PADLEN
lda #' '
sta PADCHAR
.2 ldx #PrintFTBL1.END-PrintFTBL1-1
iny
lda (ZPQuickPtr1),y
beq .99
.3 cmp PrintFTBL1,x do we have a %x command?
beq .8 yes, jmp to it!
dex
bpl .3 no valid letter...
cmp #'0' ...a 0...mmm... padding char?
bne .4
ldx PADLEN PADLEN is not nul, so this 0 is second digit
bne .5
lda #'0'
sta PADCHAR no, this is the first 0, so make it PADCHAR
bra .2
.4 bcc .99 less than '0'....error
cmp #'9'+1
bcs .99 more than '9' ....error
.5 and #$0F we have a digit
pha save it...
lda PADLEN starts PADLEN * 10
asl
asl A=times 4
adc PADLEN CC by ASL, A=times 5
asl times 10
sta PADLEN
pla get back digit
adc PADLEN
sta PADLEN
bra .2 go get next char...
.8 phy
txa
asl
tax
jsr PrintFESC
ply
iny
bne .1
rts
.10 cmp #'\'
bne .20
ldx #PrintFTBL2.END-PrintFTBL2-1
iny
lda (ZPQuickPtr1),y
beq .99
.12 cmp PrintFTBL2,x
beq .13
dex
bpl .12
bra .80
.13 lda PrintFTBL2.OUT,x
.20 jsr K.COutA
.80 iny
bne .1
.99 rts
*--------------------------------------
PrintFESC jmp (PrintFJMP,x)
*--------------------------------------
PrintFTBL1 .AS "abBdDuefhHiILnNsS"
PrintFTBL1.END
PrintFTBL2 .AS "en\%"
PrintFTBL2.END
PrintFTBL2.OUT .HS 1B.0D \e\n
.DA #'\' \\
.DA #'%' \%
PrintFJMP .DA PrintF.A
.DA PrintF.B,PrintF.BB
.DA PrintF.D,PrintF.DD,PrintF.U
.DA PrintF.E,PrintF.F
.DA PrintF.H,PrintF.HH
.DA PrintF.I,PrintF.II,PrintF.L
.DA PrintF.N,PrintF.NN
.DA PrintF.S,PrintF.SS
*--------------------------------------
PrintF.A >PULLW HEXBUF
lda HEXBUF+1
lsr
lsr
lsr
lsr
tax
lda TYPES,x
jsr K.COutA
ldx #0
.1 lda #'-'
lsr HEXBUF
bcc .2
lda ACCESS,x
.2 jsr K.COutA
inx
cpx #8
bne .1
.3 lda #'-'
lsr HEXBUF+1
bcc .4
lda ACCESS,x
.4 jsr K.COutA
rts
*--------------------------------------
PrintF.BB >PULLA
pha
jsr PrintF.B
pla
bra PrintF.B.1
*--------------------------------------
PrintF.B >PULLA
PrintF.B.1 ldx #8
.1 asl
pha
lda #'0'
adc #0 add Carry
jsr K.COutA
pla
dex
bne .1
rts
*--------------------------------------
PrintF.D >PULLB HEXBUF
stz HEXBUF+1
bra PrintF.DD.1
PrintF.DD >PULLW HEXBUF
PrintF.DD.1 stz HEXBUF+2
stz HEXBUF+3
bra PrintF.U.1
PrintF.U >PULLW ZPQuickPtr2
ldy #3
.1 lda (ZPQuickPtr2),y
sta HEXBUF,y
dey
bpl .1
PrintF.U.1 stz SIGN
jsr HEX2DEC
jmp PrintDEC
*--------------------------------------
PrintF.E >PULLW ZPQuickPtr2
rts
*--------------------------------------
PrintF.F >PULLW ZPQuickPtr2
rts
*--------------------------------------
PrintF.HH >PULLA
pha
jsr PrintF.H
pla
bra PrintF.H.1
*--------------------------------------
PrintF.H >PULLA
PrintF.H.1 pha
jsr PrintF.NN.1
pla
jmp PrintF.N.1
*--------------------------------------
PrintF.I >PULLB HEXBUF
eor #$ff if positive, it becomes neg so branch if....minus!
clc
bmi .1
sec
inc 2s complement...
sta HEXBUF
.1 stz HEXBUF+1
bra PrintF.II.1
PrintF.II >PULLW HEXBUF A=HI
eor #$ff
clc
bmi PrintF.II.1
sec
tax
lda HEXBUF
eor #$ff
inc 2s complement...
sta HEXBUF
bne .1
inx
.1 sta HEXBUF
stx HEXBUF+1
PrintF.II.1 stz HEXBUF+2
stz HEXBUF+3
bra PrintF.L.1
PrintF.L >PULLW ZPQuickPtr2
ldy #3
.1 lda (ZPQuickPtr2),y
sta HEXBUF,y
dey
bpl .1
PrintF.L.1 ror SIGN
jsr HEX2DEC
jmp PrintDEC
*--------------------------------------
PrintF.N >PULLA
PrintF.N.1 and #$0F
bra PrintF.NN.2
PrintF.NN >PULLA
PrintF.NN.1 lsr
lsr
lsr
lsr
PrintF.NN.2 ora #$30
cmp #$3A
bcc .1
adc #6
.1 jmp K.COutA
*--------------------------------------
* CStr
*--------------------------------------
PrintF.S >PULLW ZPQuickPtr2
ldy #0
.1 lda (ZPQuickPtr2),y
beq .2
jsr K.COutA
iny
lda PADLEN
beq .1
cpy PADLEN
bne .1
rts
.2 lda PADLEN
beq .8
.3 lda PADCHAR
jsr K.COutA
iny
cpy PADLEN
bne .3
.8 rts
*--------------------------------------
* PStr
*--------------------------------------
PrintF.SS >PULLW ZPQuickPtr2
ldy #0
lda (ZPQuickPtr2),y
tax
beq .8
.1 iny
lda (ZPQuickPtr2),y
jsr K.COutA
lda PADLEN
beq .2
cpy PADLEN
beq .8
.2 dex
bne .1
lda PADLEN
beq .8
.3 lda PADCHAR
jsr K.COutA
iny
cpy PADLEN
bne .3
.8 rts
*--------------------------------------
K.COutA phx
phy
cmp #13
bne .1
ldx #DEVMGR.COUT
jsr pDevJmp
bcs .2
lda #10
.1 ldx #DEVMGR.COUT
jsr pDevJmp
.2 ply
plx
rts
*--------------------------------------
* Convert HEXBUF to ASCBUF decimal padded with 0
*--------------------------------------
HEX2DEC ldx #4
.1 stz BCDBUF,x Clear all 5 bytes
dex
bpl .1
sed switch to BCD mode
ldx #32 let's roll 32 bits
.2 asl HEXBUF
rol HEXBUF+1
rol HEXBUF+2
rol HEXBUF+3
ldy #4
.3 lda BCDBUF,y
adc BCDBUF,y
sta BCDBUF,y
dey
bpl .3
dex
bne .2
cld
ldy #4
ldx #9
.4 lda BCDBUF,y
pha
and #$0F
ora #$30
sta ASCBUF,x
dex
pla
lsr
lsr
lsr
lsr
ora #$30
sta ASCBUF,x
dey
dex
bpl .4
rts
*--------------------------------------
PRINTDEC lda PADLEN any Len format ?
beq .1 no
lda #10
sec yes, Print only digits starting at pos 10-padlen
sbc PADLEN
.1 tax x=0 if no padlen, or x=10-padlen
.2 lda ASCBUF,x
cmp #'0' a zero?
beq .3
inc PADLEN found a non zero, Print all digits, even if 0, next time
ldy #'0'
sty PADCHAR
bra .4
.3 cpx #9 last digit ?
beq .4 Print always
ldy PADLEN no pad to fill, do not Print 0
beq .9
lda PADCHAR fill with PADCHAR
.4 bit SIGN a sign to print before digits ?
bpl .5
pha yes, save whatever we have to print....
lda #'-'
jsr K.COutA
stz SIGN reset flag for next char...
pla
.5 jsr K.COutA
.9 inx
cpx #10
bne .2
rts
*--------------------------------------
* Convert ASCBUF decimal to HEXBUF
*--------------------------------------
DEC2HEX stz HEXBUF
stz HEXBUF+1
stz HEXBUF+2
stz HEXBUF+3
ldx #0
.1 lda HEXBUF+3 save HEXBUF for 4+1
pha
lda HEXBUF+2
pha
lda HEXBUF+1
pha
lda HEXBUF
pha
asl HEXBUF HEXBUF * 2 -> HEXBUF
rol HEXBUF+1
rol HEXBUF+2
rol HEXBUF+3
* bcs .9 overflow!!!
asl HEXBUF HEXBUF * 4 -> HEXBUF
rol HEXBUF+1
rol HEXBUF+2
rol HEXBUF+3
* bcs .9 overflow!!!
pla HEXBUF * 4 + HEXBUF -> HEXBUF
adc HEXBUF
sta HEXBUF
pla
adc HEXBUF+1
sta HEXBUF+1
pla
adc HEXBUF+2
sta HEXBUF+2
pla
adc HEXBUF+3
sta HEXBUF+3
* bcs .99 overflow!!!
asl HEXBUF HEXBUF * 10 -> HEXBUF
rol HEXBUF+1
rol HEXBUF+2
rol HEXBUF+3
* bcs .99 overflow!!!
inx
lda ASCBUF,x
and #$0F
adc HEXBUF
sta HEXBUF
bcc .2
inc HEXBUF+1
bne .2
inc HEXBUF+2
bne .2
inc HEXBUF+3
.2 cpx ASCBUF
bne .1
rts
*.9 pla discard saved HEXBUF
* pla
* pla
* pla
*.99 rts
*--------------------------------------
TYPES .AS "-pcbdls"
ACCESS .AS "rwxrwxrwx"
HEXBUF .BS 4 32 bits max
BCDBUF .BS 5 5, enough to handle 10 digits (32bits)
ASCBUF .BS 12 LEN + sign + 10 digits ($FFFFFFFF=4.294.967.295)
SIGN .BS 1
PADLEN .BS 1
PADCHAR .BS 1
*--------------------------------------
MAN
SAVE SYS/KERNEL.S.CIO
LOAD SYS/KERNEL.S
ASM
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