A2osX/SYS/KERNEL.S.STDLIB.txt

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2017-12-22 21:24:30 +00:00
NEW
2019-05-25 19:24:07 +00:00
AUTO 3,1
*/--------------------------------------
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* # StrToF
* Convert String to 40 bits Float
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* ## C
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* `float strtof (const char* str, char** endptr );`
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* ## ASM
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* **In:**
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* `>PUSHW str`
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* `>PUSHWI EndPtr`
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* `>SYSCALL StrToF`
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* ## RETURN VALUE
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* On stack (float)
*\--------------------------------------
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K.StrToF >PULLW ZPPtr1
>PULLYA
2019-07-10 15:39:02 +00:00
jsr K.AToF
2019-02-07 16:52:25 +00:00
lda TXTPTR
2018-06-15 15:15:48 +00:00
sta (ZPPtr1)
ldy #1
lda TXTPTR+1
2018-06-15 15:15:48 +00:00
sta (ZPPtr1),y
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rts
*/--------------------------------------
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* # AToF
* Convert String to 40 bits Float
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* ## C
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* `float atof ( const char* str );`
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* ## ASM
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* **In:**
* `>LDYA str`
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* `>SYSCALL atof`
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* ## RETURN VALUE
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* On stack (float)
*\--------------------------------------
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K.AToF >STYA TXTPTR Ptr to source string
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lda pStack
sec
sbc #5
sta pStack
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jsr CHARGOT
2019-07-10 15:39:02 +00:00
ldx #FPU.FIN
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jmp GP.RomCallGetFacOnStack
*/--------------------------------------
2018-06-18 06:22:50 +00:00
* # StrToL/StrToUL
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* Convert String to 32 bits (unsigned) int
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* ## C
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* `long strtol (const char* str, char** endptr, int base);`
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* `unsigned long strtoul (const char* str, char** endptr, int base);`
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* ## ASM
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* **In:**
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* `>PUSHW str`
* `>PUSHW EndPtr`
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* `>PUSHB Base`
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* `>SYSCALL StrToL`
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* ## RETURN VALUE
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* On stack (long)
*\--------------------------------------
K.StrToL sec Signed
.HS 90 BCC
K.StrToUL clc Unsigned
2020-02-14 16:32:52 +00:00
>PULLA Base
2020-02-14 16:32:52 +00:00
>PULLW ZPPtr1 EndPtr
>PULLW ZPPtr2 str
jsr K.AToL.I
bcs K.StrToUL.rts
* clc
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adc ZPPtr2
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sta (ZPPtr1)
lda #0
adc ZPPtr2+1
ldy #1
2018-06-15 15:15:48 +00:00
sta (ZPPtr1),y
2019-10-10 06:04:11 +00:00
K.StrToUL.rts rts
*/--------------------------------------
2018-06-18 15:48:00 +00:00
* # atol
* Convert String to 32 bits long
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* ## C
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* `long atol ( const char * str );`
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* ## ASM
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* **In:**
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* `>LDYA str`
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* `>SYSCALL atol`
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* ## RETURN VALUE
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* On stack (long)
*\--------------------------------------
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K.AToL >STYA ZPPtr2 C-String in Ptr2, Dst buffer in Ptr1
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* lda #10 base 10
sec signed
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K.AToL.I jsr MATH32.Dec2ACC32
bcs .9
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ldx #3
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.3 lda ACC32,x
2018-06-15 15:15:48 +00:00
>PUSHA
2019-07-15 06:41:12 +00:00
dex
bpl .3
2019-07-15 06:41:12 +00:00
tya Y = A = Count processed
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* clc
.9
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rts
*/--------------------------------------
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* # atoi
* Convert String to 16 bits int
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* ## C
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* `int atoi ( const char * str );`
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* ## ASM
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* **In:**
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* `>LDYAI str`
* `>SYSCALL atoi`
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* ## RETURN VALUE
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* Y,A = int
*\--------------------------------------
2018-06-18 15:48:00 +00:00
K.atoi >STYA ZPPtr2
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* lda #10 base 10
sec signed
2020-03-16 06:50:15 +00:00
jsr MATH32.Dec2ACC32
bcs .9
2019-07-03 15:25:07 +00:00
>LDYA ACC32
2020-02-14 07:21:56 +00:00
.9 rts
*/--------------------------------------
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* # RealPath
* Return the canonicalized absolute pathname
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* ## C / CSH
* `char *realpath(const char *path, char *resolvedpath);`
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* ## ASM
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* **In:**
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* `>PUSHW path`
* `>PUSHW resolvedpath`
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* `>SYSCALL realpath`
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* ## RETURN VALUE
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* CC : success
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* Y,A = Ptr to Full Path (C-String Buffer, MLI.MAXPATH+1)
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* X = hMem of Full Path
* CS : A = Error Code
*\--------------------------------------
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K.realpath.DST .BS 2
K.realpath.RET4 >RET 4
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2020-02-14 07:21:56 +00:00
K.realpath ldy #3
lda (pStack),y
>PUSHA
lda (pStack),y
>PUSHA
>PUSHWI 0
jsr K.expand
bcs K.realpath.RET4
2019-10-10 06:04:11 +00:00
2019-01-21 06:52:04 +00:00
>STYA ZPPtr1
stx .99+1 save expanded buffer hMem
2019-10-13 08:35:31 +00:00
2020-02-14 07:21:56 +00:00
>PULLW K.realpath.DST resolvedpath
inc pStack discard path
inc pStack
ldx #$ff
lda (ZPPtr1)
2019-10-10 06:04:11 +00:00
cmp #'/' full path starting with '/'?
beq .3 yes, do not append to current prefix
2019-10-10 06:04:11 +00:00
2019-07-22 16:28:44 +00:00
.1 ldy #S.PS.hCWD
2020-02-28 07:21:46 +00:00
lda (pPS),y
2018-06-21 15:12:10 +00:00
jsr K.GetMemPtr
2020-02-14 07:21:56 +00:00
>STYA .20+1
2019-10-10 06:04:11 +00:00
ldy #$ff
2019-10-10 06:04:11 +00:00
.2 iny
inx
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.20 lda $ffff,y
sta K.Buf256,x
bne .2
2019-10-10 06:04:11 +00:00
2017-09-29 06:36:27 +00:00
dex
2019-10-10 06:04:11 +00:00
.3 ldy #$ff
.4 iny
inx
lda (ZPPtr1),y
sta K.Buf256,x
bne .4
2019-10-10 06:04:11 +00:00
dex
2019-01-21 06:52:04 +00:00
beq .81 we have '/'....nothing to do...
2018-11-27 16:22:15 +00:00
*--------------------------------------
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* X=LEN, K.Buf256 = /dir1/./../file(/)\0
2018-11-27 16:22:15 +00:00
*--------------------------------------
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ldx #0 will skip leading /
2018-11-27 16:22:15 +00:00
2019-10-13 08:35:31 +00:00
.5 ldy #0 reset dot counter=0
2019-10-10 06:04:11 +00:00
2019-10-13 08:35:31 +00:00
.6 inx
lda K.Buf256,x
beq .8
2018-11-27 16:22:15 +00:00
2019-10-13 08:35:31 +00:00
.7 cmp #'/'
beq .8
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cmp #'.'
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bne .5
2019-10-10 06:04:11 +00:00
2017-09-29 06:36:27 +00:00
iny
2019-10-13 08:35:31 +00:00
bra .6
2019-10-10 06:04:11 +00:00
2017-09-29 06:36:27 +00:00
.8 tya
beq .80 Y was 0....nothing to do...
2019-10-10 06:04:11 +00:00
2019-10-13 08:35:31 +00:00
dey one dot ?
2017-09-29 06:36:27 +00:00
bne .9 no..
2019-10-10 06:04:11 +00:00
2018-11-27 16:22:15 +00:00
dex
dex
2019-10-13 08:35:31 +00:00
jsr K.RealPath.RemoveAtX we found "/.", remove,useless....
bra .80
2019-10-10 06:04:11 +00:00
2019-10-13 08:35:31 +00:00
.9 dey "/.." ?
bne .99 "/..." ??!!...syntax error
2018-11-27 16:22:15 +00:00
dex
dex
dex
2019-10-13 08:35:31 +00:00
txa we found "/.."
2019-01-21 06:52:04 +00:00
beq .99 at the beginning of string...cannot remove /dir/..
2017-09-29 06:36:27 +00:00
jsr K.RealPath.RemoveAtX remove "/.."
.10 dex
lda K.Buf256,x go to "/dir"
2017-09-29 06:36:27 +00:00
cmp #'/'
bne .10
2019-10-10 06:04:11 +00:00
2017-09-29 06:36:27 +00:00
jsr K.RealPath.RemoveAtX ...remove "/dir"
2019-10-13 08:35:31 +00:00
.80 lda K.Buf256,x was / or \0 ?
2018-11-27 16:22:15 +00:00
bne .5
2018-11-27 14:03:26 +00:00
*--------------------------------------
2019-01-21 06:52:04 +00:00
.81 jsr .99
2020-02-14 07:21:56 +00:00
.82 ldy K.realpath.DST
lda K.realpath.DST+1
bne .85
2019-10-10 06:04:11 +00:00
2019-11-25 07:05:07 +00:00
>LDYAI MLI.MAXPATH+1
jsr K.getmem
bcs .90
2020-02-14 07:21:56 +00:00
.85 >STYA ZPPtr1
2019-11-25 07:05:07 +00:00
ldy #$ff
.83 iny
lda K.Buf256,y
sta (ZPPtr1),y
bne .83
2020-02-14 07:21:56 +00:00
2019-11-25 07:05:07 +00:00
>LDYA ZPPtr1
2019-10-10 06:04:11 +00:00
2020-02-14 07:21:56 +00:00
clc
rts
2019-10-10 06:04:11 +00:00
2019-01-21 06:52:04 +00:00
.99 lda #$ff SELF MODIFIED
jsr K.FreeMem
lda #E.BADPATH
sec
2019-11-25 07:05:07 +00:00
.90 rts
*--------------------------------------
2017-09-29 06:36:27 +00:00
K.RealPath.RemoveAtX
txa X = "/something"
tay
.1 iny
lda K.Buf256,y
2019-01-23 16:26:48 +00:00
beq .2 found /something\0
2019-10-13 08:35:31 +00:00
2017-09-29 06:36:27 +00:00
cmp #'/'
2019-01-23 16:26:48 +00:00
bne .1 found /something/
2019-10-13 08:35:31 +00:00
2019-01-23 16:26:48 +00:00
.2 phx save X for exit
2019-10-13 08:35:31 +00:00
2019-01-23 16:26:48 +00:00
.3 iny K.Buf256,y=/ or 0
2017-09-29 06:36:27 +00:00
inx
2019-01-23 16:26:48 +00:00
lda K.Buf256-1,y
sta K.Buf256-1,x
2017-09-29 06:36:27 +00:00
bne .3
2019-10-13 08:35:31 +00:00
2019-01-23 16:26:48 +00:00
txa
bne .8
2019-10-13 08:35:31 +00:00
lda #'/' Make sure we have a least '/' in the buffer
sta K.Buf256
stz K.Buf256+1
2019-01-23 16:26:48 +00:00
.8 plx restore X
2017-09-29 06:36:27 +00:00
rts
2020-02-14 07:21:56 +00:00
*/--------------------------------------
* # Expand
* ## C
* `char *expand(const char *str, char *expanded);`
* ## ASM
* `>PUSHW str`
* `>PUSHW expanded`
* `>SYSCALL expand`
* ## RETURN VALUE
* Y,A = PTR to Expanded String
* X = hMem to Expanded String (C-String)
*\--------------------------------------
K.Expand ldy #2
lda (pStack),y
pha
iny
lda (pStack),y
ply
jsr K.strdup
bcc .1
2020-03-13 07:15:58 +00:00
jmp .9
2020-02-14 07:21:56 +00:00
.1 phx Save temp string...
>STYA TXTPTR
2020-03-13 16:10:36 +00:00
stz ENV.BufPtr init Expanded String len=0
2020-02-14 07:21:56 +00:00
stz ENV.bExp No var found yet
stz ENV.bNoExp Reset no expand flag
.10 lda (TXTPTR) End of CSTR?
beq .80
jsr SHARED.TXTPTR.Next
.11 cmp #'''
bne .21
lda ENV.bNoExp
eor #$ff
sta ENV.bNoExp toggle flag
bra .10
.21 bit ENV.bNoExp
bpl .23
.22 jsr ENV.AddAToBuf
bra .10
.23 cmp #'$' no, found one ?
bne .22 no, store...
lda (TXTPTR)
bne .24
lda #'$' End of string, output $
bra .22
.24
* sec
ror ENV.bExp Toggle Expanded flag
stz ENV.VarEndChar
cmp #'{' "${VAR]"?
bne .31
dec ENV.VarEndChar "}" expected
jsr SHARED.TXTPTR.Next skip "{"
bra .40
.31 jsr ENV.SysVar 0-9 *#?@$!
bcs .40
.35 jsr SHARED.TXTPTR.Next skip $x
bra .10
.40 jsr ENV.ExpandStrVar
bcc .70
2020-03-13 16:10:36 +00:00
.50 ldy ENV.BufPtr
2020-02-14 07:21:56 +00:00
lda /K.Buf256
>STYA FORPNT
ldx #SYS.GetEnv
2020-03-13 16:10:36 +00:00
jsr K.GetEnv.I
2020-02-14 07:21:56 +00:00
bcs .70
2020-03-13 16:10:36 +00:00
ldx ENV.BufPtr
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.51 lda K.Buf256,x
beq .52
inx
bra .51
2020-03-13 16:10:36 +00:00
.52 stx ENV.BufPtr
2020-02-14 07:21:56 +00:00
.70 lda (TXTPTR)
beq .72
jsr SHARED.IsIDValid
bcs .72
jsr SHARED.TXTPTR.Next
bra .70
.72 lda ENV.VarEndChar
bne .35 skip "}" and loop
bra .10
2020-03-13 16:10:36 +00:00
.80 ldx ENV.BufPtr
2020-02-14 07:21:56 +00:00
stz K.Buf256,x
pla discard temp string
jsr K.FreeMem
>LDYAI K.Buf256 dup in case of '' processing
jsr K.strdup
bcs .9
bit ENV.bExp Did we expand something ?
bpl .9
jmp .1
.9 >RET 4
*--------------------------------------
ENV.SysVar jsr ZP.IsDigit $0 ... $9 ?
bcs .1
and #$0f
jsr K.ArgV
bcs .8 Arg# is undefined, do not append anything
jsr ENV.AddYAToBuf
.8 clc
rts
.1 ldx #ENV.SysVars.Cnt-1
.2 cmp ENV.SysVars,x
beq .3
dex
bpl .2
sec
rts
.3 txa
beq ENV.SysVarsAllArgs
ldy ENV.SysVars.PS-1,x
lda (pPS),y
*--------------------------------------
2020-03-16 06:50:15 +00:00
ENV.SysVarsNum jsr MATH32.A2STR10NP
2020-03-12 16:44:11 +00:00
2020-02-14 07:21:56 +00:00
ldy #0
2020-03-12 16:44:11 +00:00
2020-02-14 07:21:56 +00:00
.1 lda A2osX.NumStrBuf,y
beq ENV.SysVarsNum.8
2020-03-12 16:44:11 +00:00
2020-02-14 07:21:56 +00:00
iny
jsr ENV.AddAToBuf
bra .1
2020-03-12 16:44:11 +00:00
2020-02-14 07:21:56 +00:00
ENV.SysVarsNum.8
clc
rts
*--------------------------------------
ENV.SysVarsAllArgs
lda #1
jsr K.ArgV
bcs ENV.SysVarsNum.8
>STYA ZPPtr3
.1 lda (ZPPtr3)
beq ENV.SysVarsNum.8
.2 jsr ENV.AddP3ToBuf
jsr ENV.NextEnvP3
lda (ZPPtr3)
beq ENV.SysVarsNum.8
lda #C.SPACE
jsr ENV.AddAToBuf
bra .2
*--------------------------------------
ENV.SysVars .AS "*#?@$!"
ENV.SysVars.Cnt .EQ *-ENV.SysVars
ENV.SysVars.PS .DA #S.PS.ARGC,#S.PS.RC,#S.PS.PPID,#S.PS.PID,#S.PS.CPID
*--------------------------------------
ENV.ExpandStrVar
>LDYAI ENV.StrVars
>STYA ZPPtr3
ldx #0
.1 lda (ZPPtr3)
beq .9
ldy #$ff
.2 iny
lda (TXTPTR),y
beq .3
jsr SHARED.IsIDValid
bcs .3
cmp (ZPPtr3),y
beq .2
bra .4
.3 lda (ZPPtr3),y
bne .4
jmp (ENV.StrVarsJmp,x)
.4 inx
inx
jsr ENV.NextEnvP3
bra .1
.9 sec
rts
*--------------------------------------
2020-03-12 16:44:11 +00:00
ENV.StrVars .AZ "PWD"
2020-02-14 07:21:56 +00:00
.DA #0
*--------------------------------------
2020-03-12 16:44:11 +00:00
ENV.StrVarsJmp .DA ENV.StrVarsPWD
2020-02-14 07:21:56 +00:00
*--------------------------------------
ENV.StrVarsPWD ldy #S.PS.hCWD
lda (pPS),y
jsr K.GetMemPtr
*--------------------------------------
ENV.AddYAToBuf >STYA ZPPtr3
*--------------------------------------
2020-03-13 16:10:36 +00:00
ENV.AddP3ToBuf ldx ENV.BufPtr
2020-02-14 07:21:56 +00:00
ldy #$ff
2020-03-12 16:44:11 +00:00
2020-02-14 07:21:56 +00:00
dex
2020-03-12 16:44:11 +00:00
2020-02-14 07:21:56 +00:00
.1 iny
inx
lda (ZPPtr3),y
sta K.Buf256,x
bne .1
2020-03-12 16:44:11 +00:00
2020-03-13 16:10:36 +00:00
stx ENV.BufPtr
2020-02-14 07:21:56 +00:00
rts
*--------------------------------------
2020-03-13 16:10:36 +00:00
ENV.AddAToBuf ldx ENV.BufPtr
2020-02-14 07:21:56 +00:00
sta K.Buf256,x
2020-03-13 16:10:36 +00:00
inc ENV.BufPtr
2020-02-14 07:21:56 +00:00
rts
*--------------------------------------
ENV.NextEnvP3 jsr ENV.GetP3LenY
2020-03-12 16:44:11 +00:00
tya
2020-02-14 07:21:56 +00:00
sec
adc ZPPtr3
sta ZPPtr3
bcc .8
inc ZPPtr3+1
.8 rts
*--------------------------------------
ENV.GetP3LenY ldy #$ff
.1 iny
lda (ZPPtr3),y
bne .1
rts
2017-09-29 06:36:27 +00:00
*--------------------------------------
MAN
2020-12-15 13:23:22 +00:00
SAVE usr/src/sys/kernel.s.stdlib
LOAD usr/src/sys/kernel.s
ASM