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System Standard Procedures and Definitions
The MASM PROC AXR$ also defines these mnemonic designators.
Table 2–1. MAXR$: Control Register and Partial Word Designator Mnemonics
Base Registers
Index
Registers
Arithmetic
Registers
R-Registers
Staging
Registers and
J-Registers
Partial-Word
Designators
Mne Val Mne Abs Mne Abs Mne Abs Mne Abs Mn-J J-Va
B0 0 X0 0 A0 14 R0 100 SR1 103 W (or
none)
B1 1 X1 1 A1 15 R1 101 SR2 104 H1 1
B2 2 X2 2 A2 16 R2 102 SR3 105 H2 2
B3 3 X3 3 A3 17 R3 103 J0 106 XH2 3
B4 4 X4 4 A4 20 R4 104 J1 107 XH1 4
B5 5 X5 5 A5 21 R5 105 J2 110 T3 5
B6 6 X6 6 A6 22 R6 106 J3 111 T2 6
B7 7 X7 7 A7 23 R7 107 T1 7
B8 10 X8 10 A8 24 R8 110 S1 15
B9 11 X9 11 A9 25 R9 111 S2 14
B10 12 X10 12 A10 26 R10 112 S3 13
B11 13 X11 13 A11 27 R11 113 S4 12
B12 14 A12 30 R12 114 S5 11
B13 15 A13 31 R13 115 S6 10
B14 16 A14 32 R14 116 Q1 7
B15 17 A15 33 R15 117 Q2 4
Legend
Mne Mnemonic
Val Value (octal)
Abs Absolute (octal)
Mn-J Mnemonic for J
J-Val J-Value (octal)
7833 1733–004 2–3
0