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The .LISTOFF
and .LISTON directives
control the expansion of instructions for all macro invocations,
all predefined subspace declarations, and the .ENTER
and .LEAVE pseudo-operations.
.LISTOFF causes
the Assembler to cease listing expanded instructions until a .LISTON
directive is encountered. .LISTON
causes the Assembler to list expanded instructions until a .LISTOFF
directive is encountered. The default is .LISTON. Syntax | |
Example | |
The following is the definition of the macro DECR.
It is referred to in the assembly listing generated when .LISTON
was used with a procedure containing the macro invocation. DECR .MACRO LAB,VAL
SKF ADDIL L'VAL-$global$,%dp
LDW R'VAL-$global$(%r1),%r20
LAB ADDIBF,=,N -1,%r20,LAB
.ENDM
.CODE
.IMPORT $global$
.IMPORT mark
.IMPORT count
.PROC
call_DECR
.CALLINFO FRAME=0, SAVE_RP
.ENTER
DECR mark,count
.LEAVE
.PROCEND
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If .LISTOFF
had been used in the above example, the macro invocation DECR,
and the directives .CODE,
.DATA, .ENTER,
and .LEAVE, would
not have been expanded in the assembly listing. |
line offset hexcode label opcode operands (comment)
1 .LISTON
2 .CODE
.SPACE $TEXT$, SPNUM=0,SORT=0
.SUBSPA $CODE$, QUAD=0,ALIGN=8,ACCESS=0x2c
3 .PROC
4 call_DECR ;proc label
5 .CALLINFO FRAME=0,SAVE_RP
6 .ENTER
00000000 (6BC23FD9) STW 2,-0x14(0,0x1E)
00000004 (37DE0060) LDO 0x30(0x1E),0x1E
7 00000008 (2B600000) ADDIL L'count-$global$,%dp
8 0000000C (683A0000) STW %arg0,R'count-$global$(%r1)
9 DECR mark,count;
macro invocation
00000010 (2B600000) ADDIL L'VAL-$global$,%dp
00000014 (48340000) LDW R'VAL-$global$(%r1),%r20
LAB
00000018 (AE9F3FF5) ADDIBF,= -1,%r20,LAB
0000001C (08000240) NOP
10 .LEAVE
00000020 (4BC23F79) LDW -0x44(0,0x1E),2
00000024 (E840C000) BV 0(2)
00000028 (37C03FA1) LDO -0x30(0x1E),0
11 .PROCEND
12 .EXPORT call_DECR,ENTRY
13 DATA
.SPACE $PRIVATE$, SPNUM=1,SORT=16
.SUBSPA $DATA$, QUAD=1,ALIGN=8
ACCESS=0x1f
14 .IMPORT $global$
15 40000000 (00000000) count .WORD 0
16 .LISTOFF
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