More than one MHELP option, including the limit for &SYSNDX, can be specified at the same time by combining the option codes in one MHELP operand. For example, call and branch traces can be invoked by:
MHELP B'11' MHELP 2+1 MHELP 3
Substitution by variable symbols may also be used.
*------------------------*-----------------------------------*-----------------------------------* | MHELP Instruction | MHELP Operand | MHELP Effect | *------------------------+----------*------------------------* | | | Decimal | Hexadecimal | | | | *------*---------*-------* | | | | | &SYSNDX | MHELP | | *------------------------+----------+------+---------+-------+-----------------------------------* | MHELP 4869 | 4869 | 0000 | 13 | 05 | Macro call trace and AIF dump; | | | | | | | &SYSNDX limited to 4869 | *------------------------+----------+------+---------+-------+-----------------------------------* | MHELP 65536 | 65536 | 0001 | 00 | 00 | No effect | *------------------------+----------+------+---------+-------+-----------------------------------* | MHELP 16777232 | 16777232 | 0010 | 00 | 10 | Macro entry dump | *------------------------+----------+------+---------+-------+-----------------------------------* | MHELP 28678 | 28678 | 0000 | 70 | 06 | Macro branch trace and AIF dump; | | | | | | | &SYSNDX limited to 28678 | *------------------------+----------+------+---------+-------+-----------------------------------* | MHELP 256+1 | 257 | 0000 | 01 | 01 | Macro call trace; | | | | | | | &SYSNDX limited to 257 | *------------------------+----------+------+---------+-------+-----------------------------------* | MHELP B'11' | 3 | 0000 | 00 | 03 | Macro call trace, and | | | | | | | macro branch trace | *------------------------*----------*------*---------*-------*-----------------------------------*
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