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This is a clone of the DOS DEBUG command.
The following are not implemented:
Decent documentation
Loading of .HEX files.
This debugger extends the DOS version in the following ways:
o You can do `r cx 1234' instead of having to put the `1234' on a
separate line.
o The assembler and disassembler support all publicly documented
instructions for Intel chips through the Pentium Pro (P6), except for
the MMX instructions. The assembler and disassembler inform you if
any instruction is inappropriate for the current processor.
o The current processor (for the purposes of assembler and disassembler
warnings, above) can be declared to be something else via the following
commands:
m0 Declare current processor to be an 8088
m1 Declare 80186
m2 Declare 286
m3 Declare 386
m4 Declare 486
m5 Declare Pentium
m6 Declare Pentium Pro
mc Declare the existence of a math coprocessor
mnc Declare the absence of a math coprocessor
mc2 Declare that the math coprocessor is a 287 (only valid
if the current processor is a 386)
m? Print currently declared processor type
o When doing `debug < file', debug will not hang if it reaches an end of
file before encountering a `q' command.
o This debugger saves and restores the program's Control-C and critical
error interrupts, providing for better isolation between the debugger
and the program being debugged.
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