31
30
29
28 27
16
+-----+-----+------+--------------------------------+
| BD
|
0
|
CE
|
0
|
+-----+-----+------+--------------------------------+
1
1
2
12
15
8 7
6 5
2 1
0
+-------------------------+------+------------+-----+
|
IP
|
0
|
ExcCode
|
0
|
+-------------------------+------+------------+-----+
8
2
4
2
BD indicates whether the last exception occurred during
execution in a branch delay slot (0 = normal, 1 = delay slot).
CE indicates the coprocessor unit number reference when a
coprocessor unusable exception occurs.
IP indicates whether an interrupt is pending.
ExcCode is the exception code field. The exception code
field is coded as shown in Table E-3.
0 is unused (ignored on write, zero when read).
E–4
CPU and System Registers
Содержание DECstation 5000/100 Series
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Страница 55: ...LJ 02972 TI0 MLO 010159 Figure 2 10 System Boot ROM Switches Service Operations 2 19...
Страница 139: ...WS33O125 CPU module CPU module connector Front view Back view Figure 5 6 33 MHz CPU module Base System FRUs 5 11...
Страница 140: ...LJ 02971 TI0 MLO 010159 Figure 5 7 50 MHz R4000 based CPU module 5 12 Base System FRUs...
Страница 151: ...WS33M076 Figure 5 14 Removing a memory module Base System FRUs 5 23...
Страница 153: ...WS33M075 Figure 5 15 Installing a memory module Base System FRUs 5 25...
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