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The MVS TIME macro has an additional operand MIC,address that causes the
time of day to be returned in the eight-byte area specified by the address. The
time of day is in microseconds, with bit 51 equivalent to one microsecond.
Register 0 contains 0, and register 1 contains the date.
System Operand Register Content
VSE STANDARD H HM MS S
MVS DEC HH MM SS th
VSE BINARY seconds
MVS BIN hundredths of a second
VSE TU 1/306 of a second units
MVS TU 26 micro second units
H = hours M = minutes S = seconds
t = 0.1 seconds h = 0.01 seconds
Figure 30. VSE and MVS Time Degrees of Precision
The MVS TIME macro returns the date and time into a work area when
LINKAGE=SYSTEM is specified. The date (Julian or Gregorian) and the time are
returned in packed decimal digits.
Example:
TIME DEC,OUTAREA,DATETYPE=YYYYMMDD,LINKAGE=SYSTEM
. . . .
OUTAREA DS 0XL16
HHMMSSHH DS X′12305919′ TIME OF DAY
DS XL4 filler
YYYYMMDD DS X′19980323′ DATE
DS XL4 filler
PDUMP Macro
The VSE PDUMP macro provides a hexadecimal dump of the general registers
and of the main/virtual storage area contained between the two address
parameters. The output is automatically written on the device assigned to
SYSLST with 121-byte records.
The MVS SNAP macro provides you with the same dump facility. However, you
must supply the data set (via the DD statement) on which the output is written
and a DCB for the data set must be opened before the SNAP macro is used.
Chapter 13. Assembler 279