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0.9
A2osX/SYS/KERNEL.S.STR.txt
Rémy GIBERT 2630384de2 Kernel version 0.9 : Moving API from PSTR to CSTR
2017-08-22 08:37:03 +02:00

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PR#3
PREFIX /A2OSX.BUILD
LOMEM $A00
INC 1
AUTO 6
*/--------------------------------------
* # NewPStrYA
* Create a new copy of PSTR
* ## In:
* Y,A = PTR to buffer
* ## Out:
* CC : success
* Y,A = PTR to String
* X = hMem (PSTR)
* CS : error
* A = SYS error code
*\--------------------------------------
K.NewPStrYA >STYA ZPPtr2
lda (ZPPtr2)
inc
tay
lda #0 Y,A = len of new string
jsr K.GetMemYA
bcs .9
>STYA ZPPtr1
jsr K.PStrCpyPtr2Ptr1
>LDYA ZPPtr1
clc
.9 rts
*/--------------------------------------
* # PStrCpy
* Copy string
* ## In:
* PUSHW = Ptr to SRC (PSTR)
* PUSHW = Ptr to DST (PSTR)
* ## Out:
* DST = SRC (PSTR)
*\--------------------------------------
K.PStrCpy jsr PullPtr1Ptr2
K.PStrCpyPtr2Ptr1
lda (ZPPtr2)
sta (ZPPtr1)
tay
beq .2
.1 lda (ZPPtr2),y
sta (ZPPtr1),y
dey
bne .1
.2 clc
rts
*/--------------------------------------
* # PStrCat
* Append SRC to DST
* ## In:
* PUSHW = Ptr to SRC (PSTR)
* PUSHW = Ptr to DST (PSTR)
* ## Out:
* DST = DST+SRC (PSTR)
*\--------------------------------------
K.PStrCat jsr PullPtr1Ptr2
lda (ZPPtr2)
tax
lda (ZPPtr1)
tay
.1 cpy #255
beq .8
iny
inc ZPPtr2
bne .2
inc ZPPtr2+1
.2 lda (ZPPtr2)
sta (ZPPtr1),y
dex
bne .1
.8 tya
sta (ZPPtr1)
clc
rts
*/--------------------------------------
* # PStrMatch
* Compare a String against pattern
* ## In:
* PUSHW = PTR to Pattern (e.g. '*test?.txt')
* PUSHW = PTR to Src String
* ## Out:
* CC : match
* CS : no match
*\--------------------------------------
K.PStrMatch jsr PullPtr1Ptr2
lda (ZPPtr2) Keep Pattern Length in X
tax
beq .8 Match always if empty
ldy #0
.1 inc ZPPtr2 Make PTR1 advance to next char
bne .2
inc ZPPtr2+1
.2 lda (ZPPtr2) get pattern char
cmp #'*'
beq .5
.3 tya we must match ? or regular char
cmp (ZPPtr1) check if at end of string
beq .9 yes, no char left, exit with error
iny advance to next char to compare
lda (ZPPtr2) get back pattern char
cmp #'?'
beq .4 no need to compare, any char will match
cmp (ZPPtr1),y Regular Char, compare with string at Y
bne .9 no match, exit
.4 dex char matched, check if end of pattern
bne .1 continue if remaining char in pattern
tya end of pattern, but end of string ?
cmp (ZPPtr1) end of string ?
beq .8 yes, string matched entirely
bra .9 no, remaining char in string, no match
.5 dex we have '*', last char of pattern ?
beq .8 yes, match everything, including empty string
inc ZPPtr2 Make PTR1 advance to next char
bne .6
inc ZPPtr2+1
.6 lda (ZPPtr2) get next char of pattern
cmp #'*' another '*' ?
beq .5 yes, '**' = '*', go next char
cmp #'?' '*?' ??? we must match a least one char
beq .3
.7 tya we need at least one remaining char in string,
cmp (ZPPtr1) check if at end of string
beq .9 no chance to match ? or regular char
iny
lda (ZPPtr2) get again char in pattern
cmp (ZPPtr1),y compare with char in string
bne .7 not equal to next non wildcard in pattern
bra .4 go check remaining char in pattern...
.8 clc
rts
.9 sec
rts
*/--------------------------------------
* # PStrUprYA/PStrLwrYA
* Convert string to UPPERCASE/lowercase
* ## In:
* Y,A = PTR to String (PSTR)
* ## Out:
* Uppercased/lowercased String in Buffer
*\--------------------------------------
K.PStrUprYA ldx #0
.HS 2C bit abs
K.PStrLwrYA ldx #2
>STYA ZPPtr1
pha save Y,A to restore them at exit
phy
lda (ZPPtr1)
tay
.1 lda (ZPPtr1),y
cmp K.PStrUprLwr,x
bcc .2
cmp K.PStrUprLwr+1,x
bcs .2
eor #$20
sta (ZPPtr1),y
.2 dey
bne .1
ply
pla
clc
rts
*--------------------------------------
K.PStrUprLwr .AS "azAZ"
*/--------------------------------------
* # StrFTime
* Convert S.TIME struct to CSTR
* ## In:
* PUSHW = Dst PTR To CSTR Buf
* PUSHW = Src PTR To Format String
* %a : Abbreviated weekday name : Thu
* %A : Full weekday name : Thursday
* %b : Abbreviated month name : Aug
* %B : Full month name : August
* %d : Day of the month, zero-padded (01-31)
* %H : Hour in 24h format (00-23) 14
* %I : Hour in 12h format (01-12) 02
* %m : Month as a decimal number (01-12) 08
* %M : Minute (00-59) 55
* %p : AM or PM designation PM
* %S : Second (00-61) 02
* %w : Weekday as a decimal number with Sunday as 0 (0-6)
* %y : Year, last two digits (00-99)
* %Y : Year four digits 2001
* PUSHW = Src PTR To S.Time
* ## Out:
* none. always succeed.
*\--------------------------------------
K.StrFTime jsr PullPtr1Ptr2Ptr3
ldy #0
.1 lda (ZPPtr2),y
beq .8
iny
cmp #'%'
beq .2
jsr K.StrFTime.addChar
bra .1
.2 ldx #K.StrFTime.JMPL-K.StrFTime.Tbl-1
lda (ZPPtr2),y
beq .8
iny
.3 cmp K.StrFTime.Tbl,x
beq .4
dex
bpl .3
bra .1
.4 lda K.StrFTime.JMPL,x
sta .5+1
lda K.StrFTime.JMPH,x
sta .5+2
phy
.5 jsr $ffff
ply
bra .1
.8 lda #0 Terminate C string
sta (ZPPtr3)
rts
*--------------------------------------
K.StrFTime.TBL .AS "aAbBdHImMpSwyY"
K.StrFTime.JMPL .DA #K.StrFTime.A
.DA #K.StrFTime.AA
.DA #K.StrFTime.B
.DA #K.StrFTime.BB
.DA #K.StrFTime.D
.DA #K.StrFTime.HH
.DA #K.StrFTime.II
.DA #K.StrFTime.M
.DA #K.StrFTime.MM
.DA #K.StrFTime.P
.DA #K.StrFTime.SS
.DA #K.StrFTime.W
.DA #K.StrFTime.Y
.DA #K.StrFTime.YY
*--------------------------------------
K.StrFTime.JMPH .DA /K.StrFTime.A
.DA /K.StrFTime.AA
.DA /K.StrFTime.B
.DA /K.StrFTime.BB
.DA /K.StrFTime.D
.DA /K.StrFTime.HH
.DA /K.StrFTime.II
.DA /K.StrFTime.M
.DA /K.StrFTime.MM
.DA /K.StrFTime.P
.DA /K.StrFTime.SS
.DA /K.StrFTime.W
.DA /K.StrFTime.Y
.DA /K.StrFTime.YY
*--------------------------------------
K.StrFTime.A ldx #3 Short day of week, 3 chars...
.HS 2C Bit abs
K.StrFTime.AA ldx #15 full DoW
>LDYAI K.StrFTime.DAY
>STYA ZPPtr4
ldy #S.Time.WDAY
bra K.StrFTime.STR
K.StrFTime.B ldx #3 Short Month, 3 chars....
.HS 2C Bit abs
K.StrFTime.BB ldx #15 full Month....
>LDYAI K.StrFTime.MON
>STYA ZPPtr4
ldy #S.Time.MONTH
K.StrFTime.STR lda (ZPPtr1),y get required S.Time field value
tay
beq .9 Illegal value
.1 dey range 0..x
beq .2
lda (ZPPtr4)
sec
adc ZPPtr4
sta ZPPtr4
bcc .1
inc ZPPtr4+1
bra .1
.2 ldy #0
.3 iny
lda (ZPPtr4),y
phy
jsr K.StrFTime.addChar
pla
cmp (ZPPtr4)
beq .8
tay
dex
bne .3
.8 rts
.9 ldx #3
lda #'?'
.99 jsr K.StrFTime.addChar
dex
bne .99
rts
*--------------------------------------
K.StrFTime.D ldy #S.Time.DAY
bra K.StrFTime.addDecPtr1Y
K.StrFTime.HH ldy #S.Time.HOUR
bra K.StrFTime.addDecPtr1Y
K.StrFTime.II ldy #S.Time.HOUR
lda (ZPPtr1),y
cmp #12
bcc .1
sbc #12
.1 bra K.StrFTime.addDecA
K.StrFTime.M ldy #S.Time.MONTH
bra K.StrFTime.addDecPtr1Y
K.StrFTime.MM ldy #S.Time.MINUTE
bra K.StrFTime.addDecPtr1Y
K.StrFTime.P ldy #S.Time.HOUR
lda (ZPPtr1),y
cmp #12
bcc .1
lda #'p'
.HS 2C bit abs
.1 lda #'a'
jsr K.StrFTime.addChar
lda #'m'
bra K.StrFTime.addChar
K.StrFTime.SS ldy #S.Time.SECOND
bra K.StrFTime.addDecPtr1Y
K.StrFTime.W ldy #S.Time.WDAY
bra K.StrFTime.addDecPtr1Y
K.StrFTime.YY ldy #S.Time.CENTURY
jsr K.StrFTime.addDecPtr1Y
K.StrFTime.Y ldy #S.Time.YEAR
*--------------------------------------
K.StrFTime.addDecPtr1Y
lda (ZPPtr1),y
K.StrFTime.addDecA
sta K.StrFTime.BIN
stz K.StrFTime.DEC
sed
ldx #8
.1 asl K.StrFTime.BIN
lda K.StrFTime.DEC
adc K.StrFTime.DEC
sta K.StrFTime.DEC
dex
bne .1
cld
* lda K.StrFTime.DEC already in A
pha
lsr
lsr
lsr
lsr
ora #$30
jsr K.StrFTime.addChar
pla
and #$0f
ora #$30
*--------------------------------------
K.StrFTime.addChar
sta (ZPPtr3)
inc ZPPtr3
bne .8
inc ZPPtr3+1
.8 rts
*--------------------------------------
K.StrFTime.DAY >PSTR "Monday"
>PSTR "Tuesday"
>PSTR "Wednesday"
>PSTR "Thursday"
>PSTR "Friday"
>PSTR "Saturday"
>PSTR "Sunday"
*--------------------------------------
K.StrFTime.MON >PSTR "January"
>PSTR "February"
>PSTR "March"
>PSTR "April"
>PSTR "May"
>PSTR "June"
>PSTR "July"
>PSTR "August"
>PSTR "September"
>PSTR "October"
>PSTR "November"
>PSTR "December"
*--------------------------------------
K.StrFTime.BIN .BS 1
K.StrFTime.DEC .BS 1 always < 100
*/--------------------------------------
* # PStr2StrArrayYA
* Convert a PSTR (e.g. : command Line) to a Array of PSTRs (Args[])
* ## In:
* Y,A = PTR to String
* ## Out:
* CC : success
* Y,A = PTR to StrArray
* X = hMem
* CS : error
* A = SYS error code
*\--------------------------------------
K.PStr2StrArrayYA
>STYA ZPPtr1
lda (ZPPtr1) Get mem size STRLEN+1
inc
tay
lda #0
jsr K.GetMemYA
bcs .9
phx save hMem
phy save PTR.LO
pha save PTR.HI
>STYA ZPPtr2
lda (ZPPtr1)
tax count in src string
beq .8
ldy #0 reset index in dst token
.3 inc ZPPtr1 get...
bne .4
inc ZPPtr1+1
.4 lda (ZPPtr1) ...next char
cmp #' ' found a space ?
bne .6
tya in a token ?
beq .7 no, skip & go to next char
sta (ZPPtr2) yes, set this token len
sec
adc ZPPtr2 advance to next token
sta ZPPtr2
bcc .5
inc ZPPtr2+1
.5 ldy #0 reset index in dst token
bra .7
.6 iny add char to token
sta (ZPPtr2),y
.7 dex end of src string?
bne .3 no...next char...
tya yes, are we in a token ?
beq .8
sta (ZPPtr2) yes, set last token len
sec
adc ZPPtr2 advance to next token
sta ZPPtr2
bcc .8
inc ZPPtr2+1
.8 lda #0
sta (ZPPtr2) set Array Ending 0
pla get back PTR.HI
ply get back PTR.LO
plx get back hMem
clc
.9 rts
*--------------------------------------
MAN
SAVE /A2OSX.SRC/SYS/KERNEL.S.STR
LOAD /A2OSX.SRC/SYS/KERNEL.S
ASM
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