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Overview
1
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Table 6. Programmer’s Model
31 16 15
0
I
N
%i7 %r31 SAVED return-address
%i6 %r30 %fp—frame pointer
%i5 %r29
%i4 %r28
%i3 %r27
%i2 %r26
%i1 %r25
%i0 %r24
L
O
C
A
L
%L7 %r23
%L6 %r22
%L5 %r21
%L4 %r20
%L3 %r19
Base-pointer 3 for STP/LDP (or general-purpose local)
%L2 %r18
Base-pointer 2 for STP/LDP (or general-purpose local)
%L1 %r17
Base-pointer 1 for STP/LDP (or general-purpose local)
%L0 %r16
Base-pointer 0 for STP/LDP (or general-purpose local)
O
U
T
%o7 %r15 current return-address
%o6 %r14
%sp-Stack Pointer
%o5 %r13
%o4 %r12
%o3 %r11
%o2 %r10
%o1 %r9
%o0 %r8
G
L
O
B
A
L
%g7 %r7
%g6 %r6
%g5 %r5
%g4 %r4
%g3 %r3
%g2 %r2
%g1 %r1
%g0 %r0
109876543210
K REGISTER
32 31
16 15 109876543210
PC
%ctl9 CLR_IE Any write (WRCTL) operation to this register sets STATUS[15] (IE)=0. Result of any read-operation (RCTL)
is undefined.
%ctl8 SET_IE Any write (WRCTL) operation to this register sets STATUS[15] (IE)=1. Result of any read-operation (RCTL)
is undefined.
%ctl7 —— reserved —
%ctl6 —— reserved —
%ctl5 —— reserved —
%ctl4 —— reserved —
%ctl3 —— reserved —
%ctl2 WVALID HI_LIMIT LO_LIMIT
%ctl1 ISTATUS Saved Status
%ctl0 STATUS IE IPRI CWP N V Z C