A2osX/_Docs/KERNEL.md

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GetArgC

Returns argument count in the process command line.

In:

• none.

Out:

• A = Command line Arg Count (Including /path/cmd)

GetArgA

In:

• A = argument index.

Out:

• CC : success
• Y,A = PStr To Arg[A]
• CS : Out Of Bound

FPutCAY

Print A (char) to File

In:

• A : char to print
• Y = hFILE

Out:

• CC = success

PutCA

Print A (char) to StdOut

In:

• A : char to print

Out:

• CC = success

FGetCA

Get char from File

In:

• A = hFILE

Out:

• CC = success
• A = char

GetC

Get char from StdIn

In:

• none.

Out:

• CC = success
• A = char

FPutS

Write String to FILE

In:

• PUSHW : CPtr
• PUSHB : hFILE

Out:

• CC = success

PutSYA

Write String to StdOut

In:

• Y,A : CPtr

Out:

• CC = success

FGetS

Read String From FILE

In:

• PUSHW : CPtr
• PUSHB : hFILE

Out:

• CC = success

GetSYA

Read String From StdIn

In:

• Y,A : CPtr

Out:

• CC = success

SScanF

Scan a PStr (in progress)

In:

• PUSHW PTR to target buffer
• PUSHW PSTR pattern (ex: "%d.%d.%d.%d")
• %d : byte
• PUSHW PSTR to scan (ex: "192.168.1.5")

Out:

PPrintFYA/CPrintFYA

Prints Pascal/C-Style String

In:

• Y,A = PTR to PStr/CStr
• %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
• \b : Print 'BS' (08)
• \e : Print 'ESC' ($1B,27)
• \f : Print 'FF' ($0C,12)
• \n : Print 'LF' ($0A,10)
• \r : Print 'CR' ($0D,13)
• \\ : Print \
• % : Print %
• Modifiers for len and padding :
• %d : '9' '12'
• %2d : ' 9' '12'
• %02d : '09' '12'
• %11s : 'ABCDEFGH '
• %011s : 'ABCDEFGH000'
• %2f : '3.14'

Out:

• CC : success
• CS : I/O error from COut

GetDevByIDA

IN:

• A = DevID

OUT:

• CC = OK, CS = ERROR
• Y,A = DEVSLOT
• note: X Unmodified

GetDevByNameYA

IN:

• Y,A = Ptr to device name (PStr)

OUT:

• CC = OK, CS = ERROR
• X = DEVID
• Y,A = DEVSLOT

GetDevStatusA

IN:

• A = DevID

OUT:

• CC = OK, CS = ERROR
• Y,A = Ptr to S.DEVINFO

MkNodYA

return a hFile for a given Device Name

IN:

• Y,A=DevName

OUT:

• CC = OK, CS = ERROR
• A = hFILE

MkNodA

return a hFile for a given Socket

IN:

• A=hSocket

OUT:

• CC = OK, CS = ERROR
• X = hFILE
• Y,A = pFILE

MKFIFO

return a S.FILE to a new FIFO

IN:

OUT:

• CC = OK, CS = ERROR
• A = hFILE

OpenDirYA

In:

• Y,A = PATH (PSTR)

Out:

• CC : success
• A = hDIR
• CS : error
• A = EC

ReadDirA

In:

• A = hDIR

Out:

• CC : success
• X = hDIRENT
• Y,A = PTR to S.DIRENT
• CS : error
• A = EC
• note : A = 0 means no more entry

CloseDirA

In:

• A = hDIR

Out:

• none, always succeed.

MKDirYA

In:

• Y,A = DIR name

Out:

• CC : success
• CS : error
• A = EC

ExpandPStrYA

In:

• Y,A = PTR to String to Expand (PSTR)

Out:

• X = hMem to Expanded String (PSTR)
• Y,A = PTR to Expanded String

PutEnvYA

In:

• Y,A = PTR to String NAME=VALUE (PSTR)

Out:

SetEnv

In:

• PUSHW = PTR To Value (PSTR)
• PUSHW = PTR To Name (PSTR)

Out:

GetEnvYA

In:

• Y,A = PTR to NAME (PSTR)

Out:

• CC : Y,A = PTR to VALUE (PSTR)
• CS : not found

UnsetEnvYA

In:

• Y,A = PTR To Name (PSTR)

Out:

FOpen

Open a file

In :

• PUSHW = AUXTYPE
• PUSHB = TYPE
• PUSHB = MODE
• SYS.FOpen.R : if R and exists -> ERROR
• SYS.FOpen.W : if W and exists -> CREATE
• SYS.FOpen.A : Append
• SYS.FOpen.T : Open/Append in Text mode
• SYS.FOpen.X : Create if not exists
• PUSHW = PATH (PSTR)

Out :

• CC : A = hFILE
• CS : A = EC

FCloseA

Close a file

In :

• A = hFILE

Out :

FReadA

Read ONE byte from file

In :

• A = hFILE

Out :

• A = Byte Read

FWriteAY

In:

• A = hFILE
• Y = char

Out:

• Y,A = Bytes Written

FRead

Read bytes from file

In :

• PUSHW = Dest Ptr
• PUSHW = Bytes To Read
• PUSHB = hFILE

Out :

• Y,A = Bytes Read

FWrite

In:

• PUSHW = Src Ptr
• PUSHW = Bytes To Write
• PUSHB = hFILE

Out:

• Y,A = Bytes Written

FFlushA

In:

• A = hFILE

FSeek

In:

• PUSHW = OffsetHi
• PUSHW = OffsetLo
• PUSHB = From
• PUSHB = hFILE

FTellA

In:

• A = hFILE

Out:

• Y,A,X = Offset

FEOFA

In:

• A = hFILE

Out:

• CC :
• A=0 EOF
• A =0 NOT EOF
• CS :

RemoveYA

Rename

Rename a file

In :

• PUSHW = New Name
• PUSHW = Old Name

Out :

Stat

Return information about a file

In :

• PUSHW = PTR to S.STAT buffer
• PUSHW = PTR to Filename (PSTR)

Out :

FileSearch

Search a file in the provided PATH list And return, if found, the full path to it.

In:

• PUSHW = Ptr to Search Path (PSTR) %LIB%;/SYS/SLIB
• PUSHW = Ptr to File Name (PSTR)

Out:

• CC : success
• Y,A = PSTR to FilePath (PSTR)
• X = hMem to FilePath
• CS : not found

GetFullPathYA

In :

• Y,A = Filename (PSTR)

Out :

• CC : success
• Y,A = FullPath (PSTR)
• X = hMem of FullPath
• CS : A = Error Code

LoadFile

In:

• PUSHW = AUXTYPE (Handled by....
• PUSHB = TYPE ...
• PUSHB = MODE ...
• PUSHW = PATH ...FOpen)

Out:

• Y,A = File Length
• X = hMem of Loaded File

SaveFile

In:

• PUSHW = SrcPtr
• PUSHW = SrcLen
• PUSHW = AUXTYPE (Handled by....
• PUSHB = TYPE ...
• PUSHB = MODE ...
• PUSHW = PATH ...FOpen)

ChTyp

In:

• PUSHB = TYPE
• PUSHW = PATH

ChMod

In:

• PUSHW = MODE
• PUSHW = PATH

ChOwn

In:

• PUSHW = UID
• PUSHW = PATH

ChGrp

In:

• PUSHW = GID
• PUSHW = PATH

GetMem

In:

• PUSHW = Size Requested
• PUSHB = Options
• S.MEM.F.INIT0 : init memory with 00
• S.MEM.F.ALIGN : page aligned

Out:

• CC : success
• YA = PTR to Mem

• X = hMem

• CS :
• A = EC

FreeMemA

In:

• A = hMem To Free

Out:

• none.
• (X,Y unmodified)

GetMemPtrA

In:

• A = hMem

Out:

• Y,A = PTR to MemBlock
• (X unmodified)

GetMemByIDA

In:

• A = hMem

Out:

• Y,A = ZPMemMgrSPtr = PTR to S.MEM
• X unmodified

GetMemStatYA

In:

• Y,A = 24 bytes buffer

Out:

• Buffer filled with memory stats

ExecProcessNewEnvYA

ExecProcessYA (Blocking Parent PID)

CreateProcessNewEnvYA

CreateProcessYA (Non Blocking)

In:

• Y,A = PTR To Cmd Line

Out:

• A = Child PSID

GetPSByIDA

In :

• A = PID

Out :

• Y,A = PTR to TSKSLOT

Sleep

Make current process suspend until next RUN

In :

• (none)

Out :

• (none)

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

PStrCpy

Copy string

In:

• PUSHW = Ptr to SRC (PSTR)
• PUSHW = Ptr to DST (PSTR)

Out:

• DST = SRC (PSTR)

PStrCat

Append SRC to DST

In:

• PUSHW = Ptr to SRC (PSTR)
• PUSHW = Ptr to DST (PSTR)

Out:

• DST = DST+SRC (PSTR)

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

PStrUprYA/PStrLwrYA

Convert string to UPPERCASE/lowercase

In:

• Y,A = PTR to String (PSTR)

Out:

• Uppercased/lowercased String in Buffer

PStrFTime

Convert S.TIME struct to PSTR

In:

• PUSHW = Dst PTR To PSTR 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.

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