cics_trianing class_02.ppsx

7/27/2019 CICS_Trianing Class_02.ppsx

http://slidepdf.com/reader/full/cicstrianing-class02ppsx 1/27

IBM MAINFRAMES

CICS Training Class-02



Macros used in BMS Mapset

PRINT NOGEN

Coded once at the beginning of the mapset; tells the

assembler not to print the statements generated as a result ofexpanding the BMS macros.

END

Must be the last statement in the input stream; tells the

assembler that there are no more source statements.



DFHMSD Macro

DFHMSD : To define the mapset and supplies values that

apply to the entire mapset.

NM! "#$MS" T%&!'()S%S&*M + "S!CT + M&,-

N/'(C0B0 + SM + &1 ,-M0"!'(1N + 02T + 1N02T,-

T!*M'terminal3type-

CT*'4option- option...5-

ST0*/!'2T0-

M&TTS'4C00*-$11/$T5-

"STTS'4C00*-$11/$T5-

T10&#6'(%!S + N0,

"#$MS" T%&!'#1N



MAPSET Parameter Eplanation

NAME : 2sed to refer the mapset in an application program.

TYPE : Specifies 7hether a physical map 4M&5- Symbolic

map 4"S!CT5- or both 4)S%S&*M5 7ill be generated.T%&!'#1N mar8s the end of a mapset.

LANG Specifies the programming language: C0B0- SM -

&91.

MODE Specifies 7hether the mapset is used for input 41N5-

output 402T5- or both 41N02T5.




CTRL Specifies a list of control options in effect for each

map in the mapset. Common options are:

#*!!B #ree the 8eyboard after each output operation.

*M Sound the audio alarm .

#*S!T : To reset all the map filed values.

STORAGE 1f ST0*/!'2T0 is coded- the symbolic

maps for the maps in the mapset 7ill occupy separate storage

locations. 0ther7ise- theyll occupy the same storage location.




TIOAPFX : %!S generates a <=3byte #1!* item at the

beginning of the symbolic map that the system uses to

maintain control information. %!S should al7ays be specified

for C0B0 maps 4N0 is the default5.

MAPATTS / DSATTS Specifies 7hich extended attributes

should be supported by the symbolic map. C00* and

$11/$T are the most common and are usually coded

together.

TERM Specifies the type of terminal that 7ill be supported by

the physical map generated by this mapset. Common values

are: or >=?@ Support for any terminal.



DFHMDI Macro

DFHMDI Coded once for each map 7ithin the mapset; supplies

values that apply to a single map.

NM! "#$M"1 S1A!'4lines- columns5-

1N!'line3number- C02MN'column3number-

CT*'4option- option...5



MAP Parameter Eplanation

NAME : The one3 to seven3character name of the map. !ach

map 7ithin a mapset must have a uniue name.

SIZE : Specifies the siDe of the map in lines and columns.

2sually coded S1A!'4=E-F@5 LINE Specifies the line number on the screen 7here the map

starts. 2sually coded 1N!'<.

COLUMN Specifies the column number on the screen 7here

the map starts. 2sually coded C02MN'<.

CTRL Specifies a list of control options in effect for the map.

Common options are: #*!!B . *M ) #*S!T



DFHMDF Macro

DFHMDF Coded once for each field 4or attribute byte5 7ithin themap; specifies the position- length- and attributes of a screen field.

NM! "#$M"# &0S'41N!-C02MN5!N/T$'#1!" !N/T$

TT*B'4&*0T-N2M-1C-#S!T-B*T5

C00*'C00*-

$11/$T'$1/$1/$T-

1N1T1'GliteralH-

&1C1N'G&1CT2*!IST*1N/H-

&1C02T'G&1C2T*!IST*1N/H



Map Field Parameter Eplanation

NAME The <3 to =J3character name for the field. 1f omitted- the

field is not included in the symbolic map.

POS Specifies the line and column position of the attribute byte.

LENGTH Specifies the length of the field- not including theattribute byte.

COLOR Specifies the fields color. %ou may specify "!#2T

for the terminals default color- or you may specify B2!- *!"-

&1N- /*!!N- T2*K201S!- %!0L- or N!2T*. 1fomitted- "!#2T is assumed.

HILIGHT Specifies the fields extended highlighting. alid

highlighting options are B1N- *!!*S!- 2N"!*1N!- and

0##. 1f omitted- the default is 0##.




INITIAL Specifies the starting value of the field. 1f omitted- the

default is hexadecimal Deros 4o73alue5.

PICIN Specifies a C0B0 picture string that defines the formatof the data on input- li8e PICIN'JJJJJ.

PICOUT Specifies a C0B0 picture string that defines the

format of the data on output- li8e &1C02T'AAA-AAJ.JJ.




ATTRB : Specifies one or more attribute byte settings for the

field. 1f omitted- the default is N0*M- S1&. 1f one or more

options are specified- the default becomes N0*M- 2N&*0T.

B*T The field is displayed 7ith high intensity.

N0*M The field is displayed 7ith regular intensity.

"* The field is not displayed on the screen.

&*0T The field is protected; data may not be 8eyed into it.

S1& The field is protected- and the cursor 7illautomatically s8ip over it.

2N&*0T The field is unprotected; data may be 8eyed into it.




NUM Turns on the numeric loc8 feature so only numeric

characters can be entered; the field is right ustified and Dero

filled. 1f omitted- the field is assumed to be alphanumeric and is

left ustified and space filled.

IC Specifies that the cursor should be located at the start of the

field.

FSET Specifies that the M"T bit in the attribute byte should be

turned on before the map is sent to the terminal.



An Attri!ute B"te

!ach field on a screen is preceded by an attribute byte that

controls the appearance and operation of the field.

The attributes byte determine a fields characteristics.

The protection attribute determines 7hether or not the user can

8ey data into the field. 4&*0T-2N&*0T-S1&5

The shift attribute determines 7hether the 8eyboard is in

alphanumeric shift 4N2M5

The intensity attribute controls ho7 the data in the field is

displayed. 4N0*M-B*T ) "*5.



T#e contents o$ an attri!ute !"te

Bit positios F!ctios Bit s"tti#s

@I< "epends on the contents of bits =3?

=I> &rotectionand

Shift

@@ ' 2nprotected alphanumeric@< ' 2nprotected numeric

<@ ' &rotected<< ' &rotected s8ip

EIO 1ntensity @@ ' Normal@< ' Normal

<@ ' Bright<< ' "ar8 4No3display5

P Must be @

? M"T @ ' #ield has not been modified

< ' #ield has been modified



M%T Modi$ied %ata Tag

Modified "ata Tag is the last bit of an attribute byte that says

7hether a field has been modified or not. Terminal sends a

field data only if the M"T is on. 0ther7ise- the field value is

not transmitted.

M"Ts can be turned on by

Specifying #S!T as part of the attribute of the BMS map

Moving a standard attribute- 7hich contains #S!T to the

Symbolic maps attribute. !ntering data into a field 7ill turns its M"T 0n.



S$ipp"r % Stopp"r T"c&i'!"

BMS does not automatically generate attribute byte to mar8 theend of an unprotected field. The user have to do it himself usings8ipper 9 stopper field.

So after every unprotected field an unlabeled s$ipp"r/stopp"r

field must be defined 7ith attribute parameter as S1&9 &*0T S8ipper filed : 1tHs a < byte filed 7ith S1& 4a!tos$ip5

attribute used to s8ip the cursor to the next unprotected filed.

"#$M"# &0S'4n-Cn5-TT*B'S1&-!N/T$'<

Stopper filed : 1tHs a < byte filed 7ith &*0T 4prot"ct5 attributeused to stop the cursor in order to prevent filed overflo7.

"#$M"# &0S'4n-Cn5-TT*B'&*0T-!N/T$'<



MAPSET PR&'RAM



T#an( )ou

cics_trianing class_02.ppsx

Documents