3.2.2 Arithmetic/Logical/Shift Instructions ...................................... 19
3.2.3 Control Transfer ....................................................................... 19
3.2.4 State Register Access ............................................................... 20
3.2.5 Floating-Point Operate ............................................................. 20
3.2.6 Conditional Move .................................................................... 20
3.2.7 Register Window Management ................................................ 20
3.3 Traps ....................................................................................................... 21
4 Data Formats ..................................................................................................... 23
4.1 Signed Integer Byte ................................................................................. 23
4.2 Signed Integer Halfword ......................................................................... 24
4.3 Signed Integer Word ............................................................................... 24
4.4 Signed Integer Double ............................................................................ 24
4.5 Signed Extended Integer ......................................................................... 24
4.6 Unsigned Integer Byte ............................................................................ 24
4.7 Unsigned Integer Halfword ..................................................................... 24
4.8 Unsigned Integer Word ........................................................................... 25
4.9 Unsigned Integer Double ........................................................................ 25
4.10 Unsigned Extended Integer ..................................................................... 25
4.11 Tagged Word .......................................................................................... 25
4.12 Floating-Point Single Precision .............................................................. 25
4.13 Floating-Point Double Precision ............................................................. 26
4.14 Floating-Point Quad Precision ................................................................ 26
5 Registers ............................................................................................................. 29
5.1 Nonprivileged Registers .......................................................................... 30
5.1.1 General Purpose r Registers ..................................................... 30
5.1.2 Special r Registers ................................................................... 34
5.1.3 IU Control/Status Registers ..................................................... 35
5.1.4 Floating-Point Registers .......................................................... 36
5.1.5 Condition Codes Register (CCR) ............................................ 40
5.1.6 Floating-Point Registers State (FPRS) Register ...................... 42
5.1.7 Floating-Point State Register (FSR) ........................................ 43
5.1.8 Address Space Identifier Register (ASI) ................................. 50
5.1.9 TICK Register (TICK) ............................................................. 50
5.2 Privileged Registers ................................................................................ 51
5.2.1 Processor State Register (PSTATE) ........................................ 51
5.2.2 Trap Level Register (TL) ......................................................... 54
5.2.3 Processor Interrupt Level (PIL) ............................................... 54
5.2.4 Trap Program Counter (TPC) .................................................. 55
5.2.5 Trap Next Program Counter (TNPC) ....................................... 55
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