User`s manual

OF - Offset Registers Display/Modify
3-167
3
Examples
Example 1: Display offset registers.
PPC1-Bug>OF <Return>
Z0 =00000000 00000000 Z1 = 00000000 00000000
Z2 =00000000 00000000 Z3 = 00000000 00000000
Z4 =00000000 00000000 Z5 = 00000000 00000000
Z6 =00000000 00000000 Z7*= 00000000 00000000
PPC1-Bug>
Example 2: Modify some offset registers.
PPC1-Bug>OF Z0 <Return>
Z0 =00000000 00000000? 20000 200FF <Return>
Z1 =00000000 00000000? 25000:200^ <Return>
Z0 =00020000 000200FF? . <Return>
PPC1-Bug>
Look at location $20000.
PPC1-Bug>M 20000;DI <Return>
00000+Z0 3C600004 ADDIS R3,R0,$4? . <Return>
PPC1-Bug>
PPC1-Bug>M Z0;DI <Return>
00000+Z0 3C600004 ADDIS R3,R0,$4? . <Return>
PPC1-Bug>
Example 3: Set Z0 as the automatic register.
PPC1-Bug>OF Z0;A <Return>
Z0*=00020000 000200FF? . <Return>
PPC1-Bug>
To look at location $20000
PPC1-Bug>M 0;DI <Return>
00000+Z0 3C600004 ADDIS R3,R0,$4? . <Return>
PPC1-Bug>
To look at location 0, override the automatic offset.
PPC1-Bug>M 0+Z7;DI <Return>
00000000 7FB143A6 MTSPR 273,R29? . <Return>
PPC1-Bug>