mirror of
https://github.com/A2osX/A2osX.git
synced 2024-11-23 07:35:19 +00:00
426 lines
7.7 KiB
Plaintext
426 lines
7.7 KiB
Plaintext
NEW
|
||
PREFIX /A2OSX.BUILD
|
||
AUTO 4,1
|
||
*/--------------------------------------
|
||
* # strtof
|
||
* Convert String to 40 bits Float
|
||
* ## C
|
||
* `float strtof (const char* str, char** endptr);`
|
||
* ## ASM
|
||
* **In:**
|
||
* `>PUSHWI EndPtr`
|
||
* `>LDYA str`
|
||
* `>SYSCALL strtof`
|
||
* ## RETURN VALUE
|
||
* On stack (float)
|
||
*\--------------------------------------
|
||
K.strtof >STYA TXTPTR Ptr to source string
|
||
>PULLW ZPPtr1
|
||
|
||
jsr K.AToF.I
|
||
|
||
lda TXTPTR
|
||
sta (ZPPtr1)
|
||
ldy #1
|
||
lda TXTPTR+1
|
||
sta (ZPPtr1),y
|
||
rts
|
||
*/--------------------------------------
|
||
* # AToF
|
||
* Convert String to 40 bits Float
|
||
* ## C
|
||
* `float atof (const char* str);`
|
||
* ## ASM
|
||
* **In:**
|
||
* `>LDYA str`
|
||
* `>SYSCALL atof`
|
||
* ## RETURN VALUE
|
||
* On stack (float)
|
||
*\--------------------------------------
|
||
K.AToF >STYA TXTPTR Ptr to source string
|
||
|
||
K.AToF.I jsr CHARGOT
|
||
|
||
ldx #ROM.FIN
|
||
**** DUP code in MATH.Go ****
|
||
jsr GP.ROMCALL
|
||
|
||
lda pStack
|
||
sec
|
||
sbc #5
|
||
sta pStack
|
||
sta FORPNT Ptr to dst buffer
|
||
lda pStack+1
|
||
sta FORPNT+1
|
||
|
||
ldx #ROM.GETFAC
|
||
jsr GP.ROMCALL
|
||
|
||
clc
|
||
rts
|
||
*/--------------------------------------
|
||
* # StrToL/StrToUL
|
||
* Convert String to 32 bits (unsigned) int
|
||
* ## C
|
||
* `long strtol (const char* str, char** endptr, int base);`
|
||
* `unsigned long strtoul (const char* str, char** endptr, int base);`
|
||
* ## ASM
|
||
* **In:**
|
||
* `>PUSHB Base`
|
||
* `>PUSHWI EndPtr`
|
||
* `>LDYAI str`
|
||
* `>SYSCALL strtol`
|
||
* ## RETURN VALUE
|
||
* On stack (long)
|
||
*\--------------------------------------
|
||
K.StrToL sec Signed
|
||
.HS 90 BCC
|
||
K.StrToUL clc Unsigned
|
||
>STYA ZPPtr2
|
||
>PULLW ZPPtr1
|
||
>PULLA Base
|
||
|
||
jsr K.AToL.I
|
||
bcs K.StrToUL.rts
|
||
* clc
|
||
|
||
K.StrToUL.Exit adc ZPPtr2
|
||
sta (ZPPtr1)
|
||
lda #0
|
||
adc ZPPtr2+1
|
||
ldy #1
|
||
sta (ZPPtr1),y
|
||
|
||
K.StrToUL.rts rts
|
||
*/--------------------------------------
|
||
* # atol
|
||
* Convert String to 32 bits long
|
||
* ## C
|
||
* `long atol ( const char * str );`
|
||
* ## ASM
|
||
* **In:**
|
||
* `>LDYA str`
|
||
* `>SYSCALL atol`
|
||
* ## RETURN VALUE
|
||
* On stack (long)
|
||
*\--------------------------------------
|
||
*STDLIB.32 .BS 4 32 bits max
|
||
STDLIB.32 .EQ FAC 32 bits max
|
||
*--------------------------------------
|
||
K.AToL >STYA ZPPtr2 C-String in Ptr2, Dst buffer in Ptr1
|
||
|
||
lda #10 base 10
|
||
sec signed
|
||
|
||
K.AToL.I jsr STDLIB.GetDec
|
||
bcs .9
|
||
phy Save Count processed
|
||
|
||
ldy #3
|
||
|
||
.3 lda STDLIB.32,y
|
||
>PUSHA
|
||
dey
|
||
bpl .3
|
||
pla
|
||
|
||
* clc
|
||
|
||
.9 rts
|
||
*/--------------------------------------
|
||
* # atoi
|
||
* Convert String to 16 bits int
|
||
* ## C
|
||
* `int atoi ( const char * str );`
|
||
* ## ASM
|
||
* **In:**
|
||
* `>LDYAI str`
|
||
* `>SYSCALL atoi`
|
||
* ## RETURN VALUE
|
||
* Y,A = int
|
||
*\--------------------------------------
|
||
K.atoi >STYA ZPPtr2
|
||
lda #10 base 10
|
||
sec signed
|
||
|
||
jsr STDLIB.GetDec
|
||
bcs .9
|
||
|
||
>LDYA STDLIB.32
|
||
.9 rts
|
||
*--------------------------------------
|
||
* Convert Hex int at ZPPtr2 to STDLIB.32
|
||
*--------------------------------------
|
||
STDLIB.GetHex lda (ZPPtr2)
|
||
beq .9
|
||
|
||
jsr MEM.IsHexDigit
|
||
bcs .9
|
||
|
||
jsr STDLIB.32.Clear
|
||
|
||
sta STDLIB.32
|
||
|
||
ldy #$ff
|
||
|
||
.1 iny
|
||
lda (ZPPtr2),y
|
||
beq .8
|
||
jsr MEM.IsHexDigit
|
||
bcs .8
|
||
|
||
pha
|
||
|
||
ldx #4
|
||
|
||
.2 jsr STDLIB.32.T2
|
||
bcs .99 overflow!!!
|
||
dex
|
||
bne .2
|
||
|
||
pla
|
||
ora STDLIB.32
|
||
sta STDLIB.32
|
||
bra .1
|
||
|
||
.8 clc
|
||
rts
|
||
|
||
.99 pla
|
||
.9 sec
|
||
rts
|
||
*--------------------------------------
|
||
* Convert Decimal int at ZPPtr2 to STDLIB.32
|
||
*--------------------------------------
|
||
STDLIB.GetDec jsr STDLIB.32.Clear
|
||
|
||
ldy #$ff
|
||
|
||
.1 iny
|
||
lda (ZPPtr2),y
|
||
beq .8
|
||
|
||
jsr MEM.IsDigit
|
||
bcs .8
|
||
|
||
phy Save Y, pointing to next char
|
||
jsr STDLIB.32.T10
|
||
ply
|
||
|
||
bcs .9
|
||
|
||
lda (ZPPtr2),y
|
||
and #$0F
|
||
|
||
* clc
|
||
|
||
adc STDLIB.32
|
||
sta STDLIB.32
|
||
bcc .1
|
||
inc STDLIB.32+1
|
||
bne .1
|
||
inc STDLIB.32+2
|
||
bne .1
|
||
inc STDLIB.32+3
|
||
bne .1 overflow!!!
|
||
* sec
|
||
rts
|
||
|
||
.8 clc
|
||
.9 rts
|
||
*--------------------------------------
|
||
STDLIB.32.T10 ldx #3
|
||
|
||
.1 lda STDLIB.32,x save STDLIB.32 for 4+1
|
||
pha
|
||
dex
|
||
bpl .1
|
||
|
||
jsr STDLIB.32.T2 STDLIB.32 * 2 -> STDLIB.32
|
||
bcs STDLIB.32.9 overflow!!!
|
||
|
||
jsr STDLIB.32.T2 STDLIB.32 * 4 -> STDLIB.32
|
||
bcs STDLIB.32.9 overflow!!!
|
||
|
||
ldx #0
|
||
ldy #4
|
||
|
||
* clc
|
||
|
||
.2 pla STDLIB.32 * 4 + STDLIB.32 -> STDLIB.32
|
||
adc STDLIB.32,x
|
||
sta STDLIB.32,x
|
||
inx
|
||
dey
|
||
bne .2
|
||
|
||
bcs STDLIB.32.RTS overflow!!!
|
||
|
||
* STDLIB.32 * 2 -> STDLIB.32
|
||
|
||
STDLIB.32.T2 asl STDLIB.32
|
||
rol STDLIB.32+1
|
||
rol STDLIB.32+2
|
||
rol STDLIB.32+3
|
||
rts if CS, overflow!!!
|
||
|
||
STDLIB.32.9 pla discard saved STDLIB.32
|
||
pla
|
||
pla
|
||
pla
|
||
|
||
STDLIB.32.RTS rts
|
||
*--------------------------------------
|
||
STDLIB.32.Clear ldx #3
|
||
|
||
.1 stz STDLIB.32,x
|
||
dex
|
||
bpl .1
|
||
rts
|
||
*/--------------------------------------
|
||
* # RealPath
|
||
* Return the canonicalized absolute pathname
|
||
* ## C
|
||
* `unsigned short int realpath (const char* str);`
|
||
* ## ASM
|
||
* **In:**
|
||
* `>LDYA str`
|
||
* `>SYSCALL realpath`
|
||
* ## RETURN VALUE
|
||
* CC : success
|
||
* Y,A = Ptr to Full Path (C-String)
|
||
* X = hMem of Full Path
|
||
* CS : A = Error Code
|
||
*\--------------------------------------
|
||
K.realpath >STYA ZPPtr1
|
||
ldx #$ff
|
||
|
||
lda (ZPPtr1)
|
||
beq .1
|
||
|
||
cmp #'/' full path starting with '/'?
|
||
beq .3 yes, do not append to current prefix
|
||
|
||
.1 ldy #S.PS.hPREFIX
|
||
lda (pPs),y
|
||
jsr K.GetMemPtr
|
||
>STYA ZPPtr2
|
||
|
||
ldy #$ff
|
||
|
||
.2 iny
|
||
inx
|
||
lda (ZPPtr2),y
|
||
sta K.Buf256,x
|
||
bne .2
|
||
|
||
dex
|
||
|
||
.3 ldy #$ff
|
||
|
||
.4 iny
|
||
inx
|
||
lda (ZPPtr1),y
|
||
sta K.Buf256,x
|
||
bne .4
|
||
*--------------------------------------
|
||
* X=LEN, K.Buf256 = /dir1../file(/) /x0
|
||
|
||
dex
|
||
beq .89 we have '/'....nothing to do...
|
||
|
||
lda K.Buf256,x Skip any / at the end of string....
|
||
cmp #'/'
|
||
bne .5
|
||
|
||
dex
|
||
|
||
.5 ldy #0 dot counter=0
|
||
|
||
.6 lda K.Buf256,x
|
||
cmp #'/'
|
||
beq .8
|
||
|
||
cmp #'.'
|
||
bne .7
|
||
|
||
iny
|
||
.HS 2C BIT ABS, skip "LDY #0"
|
||
.7 ldy #0 not a dot....reset dot counter
|
||
|
||
txa
|
||
beq .89
|
||
dex
|
||
bra .6 always, should end with a '/'
|
||
|
||
.8 tya
|
||
beq .80 Y was 0....nothing to do...
|
||
dey "/." ?
|
||
bne .9 no..
|
||
|
||
jsr K.RealPath.RemoveAtX we found "/.", remove,useless....
|
||
|
||
bra .80
|
||
|
||
.9 dey "/.." ?
|
||
bne .90 "/..." ??!!...mmm...syntax error
|
||
|
||
txa we found "/.."
|
||
beq .90 at the beginning of string...cannot remove /dir/..
|
||
|
||
jsr K.RealPath.RemoveAtX remove "/.."
|
||
|
||
.10 dex
|
||
|
||
lda K.Buf256,x go to "/dir"
|
||
cmp #'/'
|
||
bne .10
|
||
|
||
jsr K.RealPath.RemoveAtX ...remove "/dir"
|
||
|
||
.80 txa
|
||
beq .89 Empty path!!! go put back "/" an exit
|
||
dex
|
||
bra .5
|
||
|
||
.89 >LDYAI K.Buf256
|
||
jmp K.NewStr
|
||
|
||
.90 lda #E.SYN
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
K.RealPath.RemoveAtX
|
||
txa X = "/something"
|
||
tay
|
||
|
||
.1 iny
|
||
lda K.Buf256,y
|
||
beq .2
|
||
cmp #'/'
|
||
bne .1
|
||
|
||
.2 phx
|
||
|
||
.3 lda K.Buf256,y
|
||
sta K.Buf256,x
|
||
beq .4
|
||
iny
|
||
inx
|
||
bne .3
|
||
|
||
.4 txa
|
||
bne .8
|
||
|
||
lda #'/' Make sure we have a least '/' in the buffer
|
||
sta K.Buf256
|
||
stz K.Buf256+1
|
||
|
||
.8 plx
|
||
rts
|
||
*--------------------------------------
|
||
MAN
|
||
SAVE /A2OSX.SRC/SYS/KERNEL.S.STDLIB
|
||
LOAD /A2OSX.SRC/SYS/KERNEL.S
|
||
ASM
|