Q34473: MASM 5.10 MACRO.DOC: Miscellaneous

Article: Q34473
Product(s): See article
Version(s): 5.10   | 5.10
Operating System(s): MS-DOS | OS/2
Keyword(s): ENDUSER | | mspl13_masm
Last Modified: 12-JAN-1989

The following information was taken from the MASM 5.10 MACRO.DOC file.

MISCELLANEOUS

@GetDate (2Ah) and @SetDate (2Bh)

Gets or sets the system date

Syntax:         @GetDate
                @SetDate month, day, year

Arguments:      year        = 16-bit year (1980-2099)
                month       = 8-bit month (1-12)
                day         = 8-bit day (1-31)
Return:         For @GetDate:
                        AL  = Day of week (0 = Sunday, 1 = Monday, etc.)
                        CX  = Year (1980-2099)
                        DL  = Month (1-12)
                        DH  = Day (1-31)
                For @SetDate:
                        AL  = If date was valid 0, else -1
Registers used: AX, CX, and DX

@GetTime (2Ch) and @SetTime (2Dh)

Gets or sets the system time

Syntax:         @GetTime
                @SetTime hour,minute,second,hundredth

Arguments:      hour        = 8-bit hour (0-23)
                minute      = 8-bit hour (0-59)
                second      = 8-bit hour (0-59)
                hundredth   = 8-bit hour (0-99)
Return:         For @GetTime:
                        CL  = Hour (0-23)
                        CH  = Minute (0-59)
                        DL  = Second (0-59)
                        DH  = Hundredth (0-99)
                For @SetTime:
                        AL  = If time was valid 0, else -1
Registers used: AX, CX, and DX

@GetVer (30h)

Gets the DOS version

Syntax:         @GetVer

Argument:       None
Return:         AL          = Major version (0 for versions prior to
                              2.0)
                AH          = Minor version
                BH          = OEM serial number
                BL:CX       = 24-bit user number
Register used:  AX, BX, and CX

@GetInt (35h) and @SetInt (25h)

Gets or sets the vector for a specified interrupt routine

Syntax:         @GetInt #interrupt
                @SetInt #interrupt, &vector [,segment]

Arguments:      interrupt   = 8-bit interrupt number
                vector      = Offset of interrupt routine
                segment     = Segment of routine - if none given, DS
                              assumed for data; segment ignored for
                              code labels
Return:         @GetInt     = None
                @SetInt     = ES:BX points to interrupt routine
Registers used: AX for both; ES and BX for @GetInt; DS and
DS for @SetInt

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