Motorola MVME166IG/D2 - Manual (Page 86)

Using the 166Bug Debugger
4-16 MVME166 Single Board Computer Installation Guide
4
166Bug> RD
PC =00010000 SR =2708=TR:OFF_S._7_.N... VBR =00000000
USP =0000DFFC MSP =0000EFFC ISP* =0000FFFC SFC =0=F0
DFC =0=F0 CACR =0=........
D0 =00000001 D1 =00000001 D2 =00000000 D3 =00000000
D4 =00000000 D5 =00000002 D6 =00000000 D7 =00000000
A0 =00000000 A1 =00000000 A2 =00000000 A3 =00000000
A4 =00000000 A5 =00000000 A6 =00000000 A7 =0000FFFC
00010000 203900F0 0000 MOVE.L ($F00000).L,D0
166Bug> T
Exception: Access Fault (Local Off Board)
PC =FF839154 SR =2704
Format/Vector =7008
SSW =0145 Fault Address =00F00000 Effective Address =0000D4E8
PC =00010000 SR =2708=TR:OFF_S._7_.N... VBR =00000000
USP =0000DFFC MSP =0000EFFC ISP* =0000FFFC SFC =0=F0
DFC =0=F0 CACR =0=........
D0 =00000001 D1 =00000001 D2 =00000000 D3 =00000000
D4 =00000000 D5 =00000002 D6 =00000000 D7 =00000000
A0 =00000000 A1 =00000000 A2 =00000000 A3 =00000000
A4 =00000000 A5 =00000000 A6 =00000000 A7 =0000FFC0
00010000 203900F0 0000 MOVE.L ($F00000).L,D0
166Bug>
Notice that the target stack pointer is different. The target stack pointer now
points to the last value of the exception stack frame that was stacked. The
exception stack frame may now be examined using the MD command.
166Bug> MD (A7):&30
0000FFC0 2708 0001 0000 7008 0000 FFFC 0105 0005 ’.....p.........
0000FFD0 0005 0005 00F0 0000 0000 0A64 0000 FFF4 ...........d....
0000FFE0 00F0 0000 FFFF FFFF 00F0 0000 FFFF FFFF ................
0000FFF0 2708 0001 A708 0001 0000 0000 ’...........
166Bug>