A2osX/.Docs/KERNEL.md
2020-12-23 15:54:57 +01:00

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*** Auto generated by docgen.cmd ***
## Copyright
Copyright 2015 - 2020, Remy Gibert and the A2osX contributors.
# Shift
## ASM
A = argument index.
## RETURN VALUE
CC : success
Y,A = PTR To Arg[A]
CS : Out Of Bound
# ArgV
## ASM
A = argument index.
## RETURN VALUE
CC : success
Y,A = PTR To Arg[A]
CS : Out Of Bound
# Arg2ArgV
Expand String and convert to StrV List
## C
short int arg2argv(char* args, char* argv[])
## ASM
`>PUSHW args`
`>PUSHW argv`
`>SYSCALL Arg2ArgV`
## RETURN VALUE
A = Arg count
# ArgVDup
## ASM
Y,A = Src StrV
## RETURN VALUE
X = hMem of new StrV
A = Str Count
# LoadDrv
## ASM
**In:**
Y,A = PTR to "NAME.DRV [PARAM]" C-String
## RETURN VALUE
none
# InsDrv
## C
`void * insdrv (void * src, void * crvcsstart, void * drvcssize, void * drvend);`
## ASM
**In:**
`>PUSHW DRV.END`
`>PUSHW DRV.CS.SIZE`
`>PUSHW DRV.CS.START`
`>LDYA L.SRC`
`>SYSCALL insdrv`
## RETURN VALUE
Y,A = Ptr to installed driver
# GetDevByName
Y,A = Ptr to device name (C-String)
## RETURN VALUE
CC = OK, CS = ERROR
Y,A = FD
X = hDev
# GetDevStatus
## C
`int getdevstatus(short int DevID, S.DIB *dstat);`
## ASM
`>PUSHB DevID`
`>PUSHW S.DIB`
`>SYSCALL GetDevStatus`
## RETURN VALUE
# MKDev
Create a hDEV
## C
`hDEV mkdev (S.FD *fd, const char *devname)`
## ASM
`>PUSHW fd`
`>PUSHW devname`
`>SYSCALL mkdev`
## RETURN VALUE
A = hDEV
# IOCTL
## C
`int ioctl(short int DevID, short int request, void *param);`
## ASM
`>PUSHB hDEV`
`>PUSHB request`
`>PUSHW param`
`>SYSCALL IOCTL`
## RETURN VALUE
Y,A = ...
# OpenDir
## C
`int hDIR opendir (const char * dirpath);`
## ASM
`>LDYA dirpath`
`>SYSCALL opendir`
## RETURN VALUE
CC : success
A = hDIR
CS : error
A = EC
# ReadDir
## C
`int readdir (int hDIR, S.DIRENT * dirent);`
## ASM
`>PUSHW dirent`
`lda hDIR`
`>SYSCALL readdir`
## RETURN VALUE
CC : success
X = hDIRENT
Y,A = PTR to S.DIRENT
CS : error
A = EC
note : A = 0 means no more entry
# CloseDir
## C
`void closedir(hDIR);`
## ASM
`lda hDIR`
`>SYSCALL closedir`
## RETURN VALUE
none, always succeed.
# SetEnv
Change or add an environment variable
## C / CSH
`int setenv(const char *name, const char *value);`
## ASM
`>PUSHW name`
`>PUSHW value`
`>SYSCALL setenv`
## RETURN VALUE
# GetEnv
searches the environment list to find the environment variable name,
and returns a pointer to the corresponding value string.
## C / CSH
`char *getenv(const char *name, char *value);`
## ASM
`>PUSHW name`
`>PUSHW value`
`>SYSCALL getenv`
## RETURN VALUE
CC : Y,A = PTR to VALUE (C-String)
CS : not found
# PutEnv
Change or add an environment variable, string is 'NAME=VALUE'
## C / CSH
`int putenv(char *string);`
## ASM
**In:**
`>PUSHW string`
`>SYSCALL putenv`
## RETURN VALUE
# UnsetEnv
Remove an environment variable
## C / CSH
`int unsetenv(const char *name);`
## ASM
`>PUSHW name`
`>SYSCALL unsetenv`
## RETURN VALUE
# Add32,Sub32,Mul32,IMul32,Div32,IDiv32,Mod32,IMod32,Cmp32,ICmp32
Return X+Y, X-Y, X*Y, X/Y, X mod Y....
## ASM
**In:**
`>PUSHL X (long)`
`>PUSHL Y (long)`
`>FPU add32`
`...`
## RETURN VALUE
On stack (long)
# FAdd,FSub,FMult,FDiv,FPwr
Return X+Y, X-Y, X*Y, X/Y, X^Y
## ASM
**In:**
`>PUSHF X (float)`
`>PUSHF Y (float)`
`>FPU fadd`
`>FPU fsub`
`>FPU fmult`
`>FPU fdiv`
`>FPU fpwr`
## RETURN VALUE
On stack (float)
# Log,Sqr,Exp,Cos,Sin,Tan,ATan
Return Log(x), Sqr(x), E^X, Cos(x), Sin(X), Tan(x), ATan(x)
## C
`float log ( float x);`
`float sqr ( float x);`
`float exp ( float x);`
`float cos ( float x);`
`float sin ( float x);`
`float tan ( float x);`
`float atan ( float x);`
## ASM
**In:**
`>PUSHF x (Float)`
`>FPU log`
## RETURN VALUE
On stack (Float)
# float
Return 'floated' long
## C
`float f = (float)l;
## ASM
**In:**
`>PUSHL l` (long)
`>FPU float`
## RETURN VALUE
On stack (float)
# lrintf
Return float rounded into a long
## C
`long int lrintf (float x);`
## ASM
**In:**
`>PUSHF x`
`>FPU lrintf`
## RETURN VALUE
On stack (long)
## MD5
Return MD5 Hash for input String
# C
`void md5 (const char* str, char* digest);`
# ASM
`>PUSHW str`
`>PUSHW digest`
`>SYSCALL md5`
## RETURN VALUE
CC
## MD5Init
Initialize a MD5 computation
# C
`hMD5 md5init ();`
# ASM
`>SYSCALL MD5Init`
## RETURN VALUE
A = hMem To S.MD5
## MD5Update
Add Data to MD5 computation
# C
`void md5update (short int md5, char* data, int len);`
# ASM
`>PUSHB md5`
`>PUSHW data`
`>PUSHW len`
`>SYSCALL MD5Update`
## RETURN VALUE
## MD5Finalize
# C
`void md5finalize (short int md5, char* digest);`
# ASM
`>PUSHB md5`
`>PUSHW digest`
`>SYSCALL MD5Finalize`
## RETURN VALUE
# Realloc
## C
`void *realloc(short int hMem, int size);`
## ASM
`>PUSHB hMem`
`>PUSHW size`
`>SYSCALL realloc`
## RETURN VALUE
YA = ptr
X = hMem
# GetMem
Y,A = Size Requested
## RETURN VALUE
CC : success
YA = PTR to Mem (Uninitialised)
* X = hMem
CS :
A = EC
# FreeMem
A = hMem To Free
## RETURN VALUE
none.
(X unmodified)
# GetMemPtr
A = hMem
## RETURN VALUE
Y,A = PTR to MemBlock
(X unmodified)
# NewStkObj
Y,A = Size Requested
## RETURN VALUE
CC : success
YA = PTR to Mem (Uninitialised)
* X = hMem
CS :
A = EC
# LoadStkObj
Load a file in AUX memory (Stock Objects)
PUSHW = PATH (Handled by....
PUSHB = MODE ...
PUSHB = TYPE ...
PUSHW = AUXTYPE ...FOpen)
## RETURN VALUE
Y,A = File Length
X = hMem of Loaded Object in AUX mem
# GetStkObjPtr
## ASM
`lda hStkObj`
`>SYSCALL GetStkObjPtr`
## RETURN VALUE
# FreeStkObj
A = hMem To Free (AUX Memory)
## RETURN VALUE
none.
(X,Y unmodified)
# GetStkObj
## C
`int *ptr getstkobj (shoirt int hStkObj);`
## ASM
`lda hStkObj`
`>SYSCALL GetStkObj`
## RETURN VALUE
CC : success
X = hMem
Y,A = ptr
CS : error
A = EC
# ExecL
## C / CSH
`int execl(const char *cmdline, short int flags);`
## ASM
`>PUSHW cmdline`
`>PUSHB flags`
`>SYSCALL execl`
## RETURN VALUE
A = Child PSID
# ExecV
## C / CSH
`int execv(const char* argv[], short int flags);`
## ASM
`>PUSHW argv`
`>PUSHB flags`
`>SYSCALL execv`
## RETURN VALUE
A = Child PSID
# Fork
## C
`short int fork();`
## ASM
`>SYSCALL fork`
## RETURN VALUE
A = Child PSID
# Kill
## C
`int kill(short int pid, short int sig);`
## ASM
`>PUSHB sig`
`lda pid`
`>SYSCALL kill`
## RETURN VALUE
A = Child PSID
# LoadTxtFile
Load TXT a file in memory (with ending 0)
## C
`int loadtxtfile ( const char * filename );`
## ASM
**In:**
`>LDYA filename`
`>SYSCALL loadtxtfile`
## RETURN VALUE
Y,A = File Length (without ending 0)
X = hMem of Loaded File
# LoadFile
Load a file in memory
## C
`int loadfile ( const char * filename, short int flags, short int ftype, int auxtype );`
## ASM
**In:**
`>PUSHW filename`
`>PUSHB flags`
`>PUSHB ftype`
`>PUSHW auxtype`
`>SYSCALL loadfile`
## RETURN VALUE
Y,A = File Length
X = hMem of Loaded File
# FileSearch
Search a file in the provided PATH list
And return, if found, the full path to it.
## C
`int filesearch( char *filename, char *searchpath, char *fullpath, stat *filestat);`
## ASM
**In:**
`>PUSHW filename`
`>PUSHW fullpath`
`>PUSHW searchpath`
`>PUSHW filestat`
`>SYSCALL filesearch`
## RETURN VALUE
CC : success
DstBuf = FilePath
DstStat = S.STAT
CS : not found
# GetMemStat
**In:**
Y,A = Ptr to 24 bytes buffer
## RETURN VALUE
Buffer filled with memory stats
# GetPWUID
## C
`int getpwuid(short int uid, S.PW *passwd);`
## ASM
`PUSHB uid`
`>PUSHW passwd`
`>SYSCALL getpwuid`
## RETURN VALUE
# GetGRGID
## C
`int getgrgid(short int gid, S.GRP *group);`
## ASM
`>PUSHB gid`
`>PUSHW group`
`>SYSCALL getpwname`
## RETURN VALUE
# CloseSession
## C
`int closesession(short int hSID);`
## ASM
`>PUSHB hSID`
`>SYSCALL CloseSession`
## RETURN VALUE
# OpenSession
## C
`short int hSID opensession(const char *name, const char *passwd);`
## ASM
`>PUSHW name`
`>PUSHW passwd`
`>SYSCALL OpenSession`
## RETURN VALUE
# GetPWName
## C
`int getpwname(const char* name, S.PW *passwd);`
## ASM
`>PUSHW name`
`>PUSHW passwd`
`>SYSCALL getpwname`
## RETURN VALUE
# GetGRName
## C
`int getgrgid(const char* name, S.GRP *group);`
## ASM
`>PUSHW name`
`>PUSHW group`
`>SYSCALL getpwname`
## RETURN VALUE
# PutPW
## C
`int putpw(S.PW* passwd);`
## ASM
`>PUSHW passwd`
`>SYSCALL putpw`
## RETURN VALUE
# PutGR
## C
`int putgr(S.GRP *group);`
## ASM
`>PUSHW group`
`>SYSCALL putgr`
## RETURN VALUE
# SListGetData
## ASM
`>PUSHB hSList`
`>PUSHW KeyID`
`>PUSHW DataPtr` (0 if KERNEL should allocate a buffer)
`>PUSHW DataLen` (Data bytes to return, 0 if String mode)
`>PUSHW DataOfs` (Start offset in Data)
`>SYSCALL SListGetData`
## RETURN VALUE
Y,A = Byte Count
X = hMem (if DataPtr = 0)
# SListAddData
## ASM
`>PUSHB hSList`
`>PUSHW KeyID`
`>PUSHW DataPtr`
`>PUSHW DataLen`
`>SYSCALL SListAddData`
## RETURN VALUE
# SListSetData
## ASM
`>PUSHB hSList`
`>PUSHW KeyID`
`>PUSHW DataPtr`
`>PUSHW DataLen`
`>SYSCALL SListSetData`
## RETURN VALUE
# SListGetByID
## ASM
`>PUSHB hSList`
`>PUSHW KeyID`
`>PUSHW KeyPtr`
`>SYSCALL SListGetByID`
## RETURN VALUE
Y,A = Next KeyID
# SListNewKey
## ASM
`>PUSHB hSList`
`>PUSHW KeyPtr`
`>SYSCALL SListNewKey`
## RETURN VALUE
Y,A = KeyID
X = KeyLen
# SListLookup
## ASM
`>PUSHB hSList`
`>PUSHW KeyPtr`
`>SYSCALL SListLookup`
## RETURN VALUE
Y,A = KeyID
X = Key Length
# SListFree
## ASM
`>PUSHB hSList`
`>SYSCALL SListFree`
## RETURN VALUE
# SListNew
## ASM
`>SYSCALL SListNew`
## RETURN VALUE
A=hSList
# ChTyp
Change The type of a ProDOS File
## C
`int chtyp(const char *filepath, short int filetype);`
## ASM
`>PUSHW filepath`
`>PUSHB filetype`
`>SYSCALL chtyp`
## RETURN VALUE
# SetAttr
Change Attributes of a ProDOS File
## C
`int setattr(const char *filepath, short int attributes);`
## ASM
`>PUSHW filepath`
`>PUSHB attributes`
`>SYSCALL setattr`
## RETURN VALUE
# Stat
Return information about a file
## C
`int stat(const char *pathname, struct stat *statbuf);`
## ASM
`>PUSHW pathname`
`>PUSHW statbuf`
`>SYSCALL stat`
## RETURN VALUE
# MKDir
create a directory
## C
`int mkdir(const char *pathname, int mode);`
## ASM
`>PUSHW pathname`
`>PUSHW mode`
`>SYSCALL mkdir`
## RETURN VALUE
CC : success
CS : error
A = EC
# MKFIFO
return a pathname to a new FIFO
## C
`hFILE mkfifo(const char *pathname, int mode);`
## ASM
`>PUSHW pathname`
`>PUSHW mode`
`>SYSCALL mkfifo`
## RETURN VALUE
CC = OK, CS = ERROR
A = hFILE
# MkNod
Create a special or ordinary file.
(CDEV, BDEV, DSOCKS, SSOCK, PIPE)
## C
`hFILE mknod(const char *pathname, int mode, hFD fd);`
## ASM
`>PUSHW pathname`
`>PUSHW mode`
`>PUSHB fd`
`>SYSCALL mknod`
## RETURN VALUE
CC = OK, CS = ERROR
A = hFILE
# pipe
## C
`hFD pipe(int size);`
## ASM
`>LDYA size`
`>SYSCALL pipe`
## RETURN VALUE
CC = OK, CS = ERROR
A = hFD
# putchar (BLOCKING)
Print A (char) to StdOut
## C
`int putchar ( short int character );`
## ASM
**In:**
`lda character`
`>SYSCALL putchar`
## RETURN VALUE
CC = success
# fputc (BLOCKING)
Print A (char) to hFILE
## C
`int fputc ( hFILE stream , short int character );`
## ASM
**In:**
`>PUSHB character`
`lda stream`
`>SYSCALL fputc`
## RETURN VALUE
CC = success
# puts (BLOCKING)
Write Str to StdOut, appends '\r\n'
## C
`int puts ( const char * str );`
**In:**
## ASM
`>LDYAI str`
`>SYSCALL PutS`
## RETURN VALUE
CC = success
# fputs (BLOCKING)
Write Str to hFILE
## C
`int fputs (hFILE stream, const char * str );`
## ASM
**In:**
`>PUSHB stream`
`>PUSHW str`
`>SYSCALL fputs`
## RETURN VALUE
CC = success
# fgets (BLOCKING)
read bytes from stream into the array
pointed to by s, until n-1 bytes are read, or a <newline> is read and
transferred to s, or an end-of-file condition is encountered. The
string is then terminated with a null byte.
## C
`char *fgets(hFILE stream, char * s, int n);`
## ASM
**In:**
`>PUSHB hFILE`
`>PUSHW s`
`>PUSHW n`
`>SYSCALL fgets`
## RETURN VALUE
Y,A: s
CC = success
# getchar (BLOCKING)
Get char from StdIn
## C
`short int getchar ( );`
## ASM
**In:**
`>SYSCALL getchar`
## RETURN VALUE
CC = success
A = char
# getc (BLOCKING)
Get char from Node
## C
`short int getc ( short int stream );`
## ASM
**In:**
`lda stream`
`>SYSCALL getc`
## RETURN VALUE
CC = success
A = char
# ungetc
push byte back into input stream
## C
`short int ungetc(short int c, short int stream);`
## ASM
`>PUSHB c`
`>PUSHB stream`
`>SYSCALL ungetc`
## RETURN VALUE
CC = success
A = char
# FOpen
Open a file
## C
`short int fopen ( const char *filename, short int flags, short int ftype, int auxtype );`
**In:**
## ASM
`>PUSHW filename`
`>PUSHB flags`
+ O.RDONLY : if R and exists -> ERROR
+ O.WRONLY : if W and exists -> CREATE
+ O.TRUNC : Reset Size To 0
+ O.APPEND : Append
+ O.TEXT : Open/Append in Text mode
+ O.CREATE : Create if not exists
`>PUSHB ftype`
`>PUSHW auxtype`
TODO: replace flags/ftype/auxtype with mode="w+,t=TYP,x=AUXTYPE"
+ r = O_RDONLY
+ r+ = O_RDWR
+ w = O_WRONLY | O_CREAT | O_TRUNC
+ w+ = O_RDWR | O_CREAT | O_TRUNC
+ a = O_WRONLY | O_CREAT | O_APPEND
+ a+ = O_RDWR | O_CREAT | O_APPEND
+ ,t=123 or t=$ff or t=TXT
+ ,x=12345 or x=$ffff
## RETURN VALUE
CC : A = hFILE
CS : A = EC
# FClose
Close a file
## C
`int fclose ( short int stream );`
## ASM
**In:**
`lda stream`
`>SYSCALL FClose`
## RETURN VALUE
# FRead (BLOCKING)
Read bytes from file
## C
`int fread (short int stream, void * ptr, int count );`
## ASM
**In:**
`>PUSHWI count`
`>PUSHW ptr`
`lda stream`
`>SYSCALL fread`
## RETURN VALUE
Y,A = Bytes Read
# FWrite (BLOCKING)
Write bytes to file
## C
`int fwrite ( short int stream, const void * ptr, int count );`
## ASM
**In:**
`>PUSHWI count`
`>PUSHW ptr`
`lda stream`
`>SYSCALL fwrite`
## RETURN VALUE
Y,A = Bytes Written
# FFlush
## C
`int fflush( short int stream );`
## ASM
**In:**
`lda stream`
`>SYSCALL fflush`
# FSeek
Set the file-position indicator for hFILE
## C
`int fseek( short int stream, long offset, short int whence );`
## ASM
**In:**
`>PUSHBI whence`
`>PUSHL offset`
`lda stream`
`>SYSCALL fseek`
# FEOF
Test the end-of-file indicator for hFILE
## C
`int feof( short int stream );`
## ASM
**In:**
`lda stream`
`>SYSCALL feof`
## RETURN VALUE
CC :
A = $ff EOF
A = 0 NOT EOF
CS :
# FTell
Return the current value of the file-position indicator
## C
`long ftell( short int stream );`
## ASM
**In:**
`lda stream`
`>SYSCALL ftell`
## RETURN VALUE
On stack (long)
# Remove
Remove a file or directory
## C
`int remove ( const char *pathname );`
## ASM
**In:**
`>LDYA pathname`
`>SYSCALL remove`
## RETURN VALUE
# Rename
Rename a file
## C
`int rename ( const char * oldpath, const char * newpath );`
## ASM
**In:**
`>PUSHW oldpath`
`>PUSHW newpath`
`>SYSCALL rename`
## RETURN VALUE
# PrintF (BLOCKING)
# FPrintF (BLOCKING)
# SPrintF
Prints C-Style String
## C
`int printf ( const char *format, ... );`
`int fprintf ( short int stream, const char *format, ... );`
`int sprintf ( char *str, const char *format, ... );`
## ASM
**In:**
PrintF : (example is for printing Y,A as integer : format="%I", 2 bytes)
`>PUSHW format`
`>PUSHW i`
`...`
`>PUSHBI 2` #bytecount
`>SYSCALL PrintF`
FPrintF :
`>PUSHB hFILE`
`>PUSHW format`
`>PUSHW i`
`...`
`>PUSHBI 2` #bytecount
`>SYSCALL fprintf`
SPrintF :
`>PUSHW str`
`>PUSHW format`
`>PUSHW i`
`...`
`>PUSHBI 2` #bytecount
`>SYSCALL sprintf`
## RETURN VALUE
CC : success, Y,A = bytes sent
CS : error, A = code from Output
Specifiers :
+ %b : pull 1 byte to Print BIN
+ %d : pull 1 byte unsigned DEC 0..255
+ %D : pull 2 bytes unsigned DEC 0..65535
+ %u : pull 4 bytes long unsigned DEC 0..4294967295
+ %e : pull 5 Bytes float (-)1.23456789e+12
+ %f : pull 5 Bytes float (-)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 4 bytes signed DEC -2147483648..2147483647
+ %s : pull 2 bytes ptr to C-Style String
+ %S : pull 2 bytes ptr to P-Style String
+ \b : Print 'BS' (08)
+ \e : Print 'ESC' ($1B,27)
+ \f : Print 'FF' ($0C,12)
+ \n : Print 'LF' ($0A,10)
+ \r : Print 'CR' ($0D,13)
+ \t : Print 'TAB' ($09,09)
+ \v : Print 'VT' ($0B,11)
+ \xHH : Print byte with hexadecimal value HH (1 to 2 digits)
+ \\\\ : Print \
+ \\% : Print %
Modifiers for len and padding :
+ %d : '9' '12'
+ %2d : ' 9' '12'
+ %02d : '09' '12'
+ %11s : 'ABCDEFGH '
+ %011s : 'ABCDEFGH000'
+ %2f : '3.14'
# ScanF (BLOCKING)
# FScanF (BLOCKING)
# SScanF
Read formatted data from string
## C
`int scanf( const char *format, ... );`
`int fscanf( short int stream, const char *format, ... );`
`int sscanf ( const char *s, const char *format, ... );`
## ASM
**In:**
ScanF :
`>PUSHW format`
`>PUSHW ptr`
`...`
`>PUSHB bytecount`
`>SYSCALL scanf`
FScanF :
`>PUSHB stream`
`>PUSHW format`
`>PUSHW ptr`
`...`
`>PUSHB bytecount`
`>SYSCALL fscanf`
SScanF :
`>PUSHW s`
`>PUSHW format`
`>PUSHW ptr`
`...`
`>PUSHB bytecount`
`>SYSCALL sscanf`
Specifiers :
+ %i : short int
+ %d : byte
+ %I : int
+ %D : word
+ %L : long int
+ %U : dword
+ %h : HEX byte
+ %H : HEX word
+ %s : string
TODO : %10s
## RETURN VALUE
A = Number of arguments filled.
# StrToF
Convert String to 40 bits Float
## C
`float strtof (const char* str, char** endptr );`
## ASM
**In:**
`>PUSHW str`
`>PUSHWI EndPtr`
`>SYSCALL StrToF`
## RETURN VALUE
On stack (float)
# AToF
Convert String to 40 bits Float
## C
`float atof ( const char* str );`
## ASM
**In:**
`>LDYA str`
`>SYSCALL atof`
## RETURN VALUE
On stack (float)
# 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:**
`>PUSHW str`
`>PUSHW EndPtr`
`>PUSHB Base`
`>SYSCALL StrToL`
## RETURN VALUE
On stack (long)
# atol
Convert String to 32 bits long
## C
`long atol ( const char * str );`
## ASM
**In:**
`>LDYA str`
`>SYSCALL atol`
## RETURN VALUE
On stack (long)
# atoi
Convert String to 16 bits int
## C
`int atoi ( const char * str );`
## ASM
**In:**
`>LDYAI str`
`>SYSCALL atoi`
## RETURN VALUE
Y,A = int
# RealPath
Return the canonicalized absolute pathname
## C / CSH
`char *realpath(const char *path, char *resolvedpath);`
## ASM
**In:**
`>PUSHW path`
`>PUSHW resolvedpath`
`>SYSCALL realpath`
## RETURN VALUE
CC : success
Y,A = Ptr to Full Path (C-String Buffer, MLI.MAXPATH+1)
X = hMem of Full Path
CS : A = Error Code
# 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)
# StrLen
Returns Length of C-String
## C
`int strlen ( char * str);`
## ASM
`>LDYAI str`
`>SYSCALL strlen`
## RETURN VALUE
Y,A = String length
# StrCat
Concatenate strings
## C
`char * strcat ( char * destination, const char * source );`
## ASM
**In:**
`>PUSHWI source`
`>LDYAI destination`
`>SYSCALL strcat`
## RETURN VALUE
Y,A = destination
# StrCpy
Copy string
## C
`char * strcpy ( char * destination, const char * source );`
## ASM
**In:**
`>PUSHWI source`
`>LDYAI destination`
`>SYSCALL strcpy`
## RETURN VALUE
Y,A = destination
# StrDup
Create a new copy of this C-String
## C
`char * strdup ( char * str);`
## ASM
Y,A = Ptr to source C-String
CC : success
Y,A = PTR to String
X = hMem (C-String)
CS : error
A = SYS error code
# StrUpr/StrLwr
Convert string to UPPERCASE/lowercase
## C
`int strupr ( char * str);`
`int strlwr ( char * str);`
## ASM
**In:**
`>LDYAI str`
`>SYSCALL strupr`
`>SYSCALL strlwr`
## RETURN VALUE
Uppercased/lowercased String in Buffer
Y,A = str
# StrCmp
Compare 2 strings
## C
`int strcmp(const char *s1, const char *s2);`
## ASM
**In:**
`>PUSHWI s2`
`>LDYAI s1`
`>SYSCALL strcmp`
## RETURN VALUE
CC : match
CS : no match
CC, Y,A=0
CS, Y,A > 0 or < 0
# StrCaseCmp
Compare 2 strings, ignoring case
## C
`int strcasecmp(const char *s1, const char *s2);`
## ASM
**In:**
`>PUSHWI s2`
`>LDYAI s1`
`>SYSCALL strcasecmp`
## RETURN VALUE
CC : match
CS : no match
CC, Y,A=0
CS, Y,A > 0 or < 0
# StrVGet
## ASM
`>PUSHB hSTRV`
`>PUSHB index`
`>PUSHW ptr`
`>SYSCALL StrVGet`
## RETURN VALUE
CC: Y,A = Ptr
CS: Y,A = NULL
# StrVShift
## ASM
`>PUSHB hSTRV`
`>PUSHB index`
`>SYSCALL StrVShift`
## RETURN VALUE
# StrVAdd
## ASM
`>PUSHB hSTRV`
`>PUSHW str`
`>SYSCALL StrVAdd`
## RETURN VALUE
CC : str added to hSTRV
CS : hSTRV full
# Time
Get System Time in Buffer
## C
`int time (S.TIME* timer);`
## ASM
`>PUSHW timer`
`>SYSCALL time`
## RETURN VALUE
S.TIME filled with System date/time
# StrFTime
## C
Convert S.TIME struct to CSTR
`void strftime (char* str, const char* format, const struct S.TIME* timeptr );`
## ASM
`>PUSHW str`
`>PUSHW format`
+ %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 timeptr`
`>SYSCALL strftime`
## RETURN VALUE
none. always succeed.
# PTime2Time
Convert ProDOS Time To S.TIME
## C
`int PTime2Time (long* ptime, S.TIME* timer);`
## ASM
`>PUSHW ptime`
`>PUSHW timer`
`>SYSCALL PTime2Time`
## RETURN VALUE
# CTime2Time
Convert CTime Time To S.TIME
## C
`int CTime2Time (long* ctime, S.TIME* timer);`
## ASM
`>PUSHW ctime`
`>PUSHW timer`
`>SYSCALL CTime2Time`
## RETURN VALUE
# open
## C
`hFD open(const char *pathname, short int flags);`
## ASM
**In:**
`>PUSHB flags`
`>LDYA pathname`
`>SYSCALL open`
## RETURN VALUE
A = hFD
REG File created on ProDOS : T=TXT,X=$0000
# close
## C
`int close(hFD fd);`
## ASM
**In:**
`lda fd`
`>SYSCALL close`
# read
## C
`int read(hFD fd, void *buf, int count);`
## ASM
**In:**
`>PUSHWI count`
`>PUSHW buf`
`lda fd`
`>SYSCALL read`
## RETURN VALUE
CC: Y,A = bytes read
CS: A = EC
# write
## C
`int write(hFD fd, const void *buf, int count);`
## ASM
**In:**
`>PUSHWI count`
`>PUSHW buf`
`lda fd`
`>SYSCALL write`
## RETURN VALUE
CC: Y,A = bytes written
CS: A = EC
# ChOwn
## C
`short int chown(const char *pathname, short int owner, short int group);`
## ASM
**In:**
`>PUSHW pathname`
`>PUSHB owner`
`>PUSHB group`
`>SYSCALL chown`
## RETURN VALUE
## License
A2osX is licensed under the GNU General Public License.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
The full A2osX license can be found **[Here](../LICENSE)**.
*** End of Auto generated file ***