Hardware and Software Development Tools for the HCS12 - The HCS12/9S12: An Introduction to Software and Hardware Interfacing - page 103

Example 3.5
▼ + move 1000 10ff 1100
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rd
The rd ( register display ) command is used to display the HCS12 CPU registers, including
the ppage register.

Example 3.6
▼ + rd
PP PC SP X Y D 5 A:B CCR 5 SXHI NZVC

38 1521 3C00 2014 0000 6E:14 1001 0100

xx: 1521 9C42 CPD $0042

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rm
The rm ( register modify ) command is used to examine and/or modify the contents of the
CPU12 registers interactively. As each register and its contents are displayed, D-Bug12 allows
the user to enter a new value for the register in hex. If modification of the displayed register
is not desired, entering a carriage return will cause the next CPU register and its contents
to be displayed on the next line. When the last of the CPU registers has been examined and/
or modified, the rm command displays the first register, giving the user an opportunity to
make additional modifications to the CPU register contents. Typing a period as the first non-
space character on the line will exit the interactive mode of the register modify command and
return to the D-Bug12 command prompt. The registers are displayed in the following order,
one register per line: PC, SP, X, Y, A, B, CCR. The PPAGE register (represented by PP) is not
displayed.

Example 3.7
▼ + rm
PC 5 0000 1500
SP 5 0A00
IX 5 0000 0100
IY 5 0000
A 5 00
B 5 00 ff
CCR 5 90 d1
PC 5 1500 .
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