česky:
, English: 
SYSTEM
Systémové funkce
Pozn.: Soubory StdOut a StdIn (standardní vstup a výstup) jsou pouze připravené, ale zatím nejsou v systému použity. Vstup a výstup programů nelze přesměrovávat.
SysGetInt - get current interrupt handler address
INPUT:
CL = interrupt number (0..255)
OUTPUT:
AX = current interrupt handler address
CY = segment has not default value, need use SysGetInt32
NOTES: It temporaly disables interrupts.
SysSetInt - set new interrupt handler address
INPUT:
AX = new interrupt handler address
CL = interrupt number (0..255)
NOTES: It temporaly disables interrupts.
SysGetInt32 - get current interrupt handler address 32-bit
INPUT:
CL = interrupt number (0..255)
OUTPUT:
DX:AX = current interrupt handler address
NOTES: It temporaly disables interrupts.
SysSetInt32 - set new interrupt handler address 32-bit
INPUT:
DX:AX = new interrupt handler address
CL = interrupt number (0..255)
NOTES: It temporaly disables interrupts.
TokenUp - uppercase token
INPUT:
SI = token (1 byte length + N bytes text)
Tokenize - tokenize text
INPUT:
CX = length of text (should be max. 128)
SI = buffer with text
DI = destinaton buffer for tokens (min. size CX + 1)
OUTPUT:
AX = number of tokens
NOTES: Text is packed into tokens: 1 byte length + N bytes text. Quotation and apostrophe marks are removed.
InputText - input text from user (till Enter)
INPUT:
AX = old length of text
CX = max. length of text
DI = destination buffer
OUTPUT:
AX = new length of text in buffer
GetStdOut - get StdOut file (standard output)
OUTPUT:
BX = pointer to FILE structure with StdOut file
GetStdIn - get StdIn file (standard input)
OUTPUT:
BX = pointer to FILE structure with StdIn file
StdOutTextStr - output TEXT to StdOut file (currently unsupported)
INPUT:
BX = pointer to TEXT structure
ExecCmd - execute command
INPUT:
CX = length of text (max. 128 chars)
SI = buffer with text
OUTPUT:
CY = error, command not found
Command - execute command shell interpreter
INPUT:
BX = TEXT with command to execute (NULL = prompt user)
NOTES: Destroys all registers, does not return and initializes memory.
KernelCheck - check system integrity
NOTES:
Halts on kernel CRC error.
GetCommandLine - get command line
OUTPUT:
CX = length of command line
DX = number of tokens
SI = command line
DI = token line
SysVer - get system version
OUTPUT:
AL = version major number
AH = version minor number
BX = version CTEXT
DX = system ID (SYSVER_ID)
SI = kernel info table KERNINFO
Exit - return to system from application
KINFO_InitCode: (word) init code start
KINFO_InitConst: (word) init constant data start
KINFO_Code: (word) code start
KINFO_Const: (word) constant data start
KINFO_Data: (word) data start
KINFO_End: (word) kernel end
SYSVER_MAJ: (=1) version MAJOR
SYSVER_MIN: (=0) version MINOR
SYSVER_TXT: (="1.0") version in text format
SYSVER_ID: (=384Ch) Litos 8 magic
COMMAND_MAX EQU 127 ; max. length of command line
