IPCS special symbols for system control blocks
Table 1 summarizes the IPCS special symbols. The
following variables are used in the chart.
- a
- Represents 1 uppercase letter, A through Z
- n
- Represents 1 decimal digit
- x or d
- Represents 1 EBCDIC-hexadecimal digit, 1 decimal digit from 0 through 9, or 1 uppercase letter, A through F
SYMBOL | Minimum | Maximum | Symbol description |
---|---|---|---|
ASCBnnnnn | ASCB1 | ASCB99999 | Address space control block for address space nnnnn. |
ASTnnnn | AST0 | AST9999 | Address space second table corresponding to ENTRY(nnnn) in the address space first table. (An equivalent definition is that this is the address space second table for system address spaces from nnnn*16 through nnnn*16+15.) |
ASTEnnnnn | ASTE1 | ASTE9999 | Address space second table entry for address space nnnnn. |
ASXBnnnnn | ASXB1 | ASCB99999 | Address space extension block for address space nnnnn. |
IHSAnnnnn | IHSA1 | IHSA9999 | Interrupt handler save area for address space nnnnn. |
LCCAnn | LCCA0 | LCCA99 | Logical configuration communication area for processor nn. |
PCCAnn | PCCA0 | PCCA99 | Physical configuration communication area for processor nn. |
PGTnnnnnaaaaa | PGT1A | PGT99999ZZZZZ | Page table for segment aaaaa (base 26 number) in address space nnnnn. |
PSAnn | PSA0 | PSA99 | Prefixed storage area for processor nn. |
PSWnn | PSW0 | PSW99 | Program status word for processor nn. |
REGACCnn | REGACC0 | REGACC99 | Access registers for processor nn. |
REGCTLnn | REGCTL0 | REGCTL99 | Control registers for processor nn. |
REGFLTnn | REGFLT0 | REGFLT99 | Floating point registers for processor nn. |
REGFPCnn | REGFPC0 | REGFPC99 | The floating point control register for processor nn. |
REGGENnn | REGGEN0 | REGGEN99 | General purpose registers for processor nn. |
REGVECnnn | REGVEC0 | REGVEC999 | The vector registers for processor nnn. |
REG32CTLnn | REG32CTL0 | REG32CTL99 | The 32-bit control registers for processor nn. |
REG32GENnn | REG32GEN0 | REG32GEN99 | The 32-bit general purpose registers for processor nn. |
REG64CTLnn | REG64CTL0 | REG64CTL99 | The 64-bit control registers for processor nn. |
REG64GENnn | REG64GEN0 | REG64GEN99 | The 64-bit general purpose registers for processor nn. |
SGTnnnnn | SGT1 | SGT99999 | The segment table for address space nnnnn. |
TCBnnnnnaaaaa | TCB1A | TCB99999ZZZZZ | The task control block in position aaaaa (base 26 number) on the priority chain in address space nnnnn. |
UCBdddd | UCB0 | UCBFFFF | The unit control block for the device number dddd. |
Znnnnn | Z1 | Z99999 | A dump location that is added to the pointer stack as nnnnn, whenever executing the STACK primary command, the STACK subcommand, or the IPCS dialog. The suffix nnnnn designates a sequenced number. |