Remove the /I "alternate format" from db_disasm(), which was internally
interpreted as "showregs", whcih would print the values of the registers
at each instruction. Unfortunately, this was fundamen

Remove the /I "alternate format" from db_disasm(), which was internally
interpreted as "showregs", whcih would print the values of the registers
at each instruction. Unfortunately, this was fundamentally broken because
the saved registers accessible to DDB are only valid for the faulting
insn that got us into DDB, and not arbitrary isns that can be examined
from within DDB.

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Allow alpha_print_instruction() to be called from outside DDB, and
allow the caller to supply a buffer to contain the pretty-printed
insn string, rather than db_printf() (which is used if there is no

Allow alpha_print_instruction() to be called from outside DDB, and
allow the caller to supply a buffer to contain the pretty-printed
insn string, rather than db_printf() (which is used if there is no
supplied buffer).

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kill sprintf

Do a minor cleanup of alpha (this will make applying pullups post branching
easier).
u_int{8,16,32,64}_t -> uint{*}_t
Change all old-style definitions to C89 prototypes.
Whitespace cleanup.
Constific

Do a minor cleanup of alpha (this will make applying pullups post branching
easier).
u_int{8,16,32,64}_t -> uint{*}_t
Change all old-style definitions to C89 prototypes.
Whitespace cleanup.
Constification in db_disasm.c

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TRUE -> true, FALSE -> false

Replace the Mach-derived boolean_t type with the C99 bool type. A
future commit will replace use of TRUE and FALSE with true and false.

merge ktrace-lwp.

fix constification fallout

%lz -> db_format_hex()

ANSI'ify.

Interface change: db_printsym() takes a third argument, pr, a function
pointer indicating how to print the symbol. This allows db_printsym()
to called in places where db_printf() is not an appropriat

Interface change: db_printsym() takes a third argument, pr, a function
pointer indicating how to print the symbol. This allows db_printsym()
to called in places where db_printf() is not an appropriate output
function.

While straightforward, apologies in advance if I've introduced any minor
syntax errors; I was unable to test compilation this on all the affected
platforms.

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Handle a few more SPECIAL intructions.

convert to DEC-style register names (but not yet done for
the internal PALcode instruction format structure).

Fix printf format warnings on Alpha.

Add support for disassembling the "integer miscellaneous" opcode subgroup.

Fix an oversight in the last commit.

- Rewrite the functions that provide opcode subfunction names to make it
easier to add instructions that the disassembler doesn't know about
(the opcode subfunction number is now printed).
- Add

- Rewrite the functions that provide opcode subfunction names to make it
easier to add instructions that the disassembler doesn't know about
(the opcode subfunction number is now printed).
- Add the "amask" and "implver" operate subfunctions.
- Add the "ldbu", "ldwu", "stb", and "stw" major opcodes (BWX instructions).

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Add support for DDB (in-kernel debugger) to NetBSD/alpha, based on
such code for Mach 3's Alpha port. Initially reworked for NetBSD/alpha
by Chris Demetriou, and then heavily hacked on by me. Works

Add support for DDB (in-kernel debugger) to NetBSD/alpha, based on
such code for Mach 3's Alpha port. Initially reworked for NetBSD/alpha
by Chris Demetriou, and then heavily hacked on by me. Works, but is still
a little rough around the edges. Known problems:

- Error recovery could be improved a bit.
- Back traces don't work.
- Single-stepping can be flaky, at times. (Alpha doesn't have hardware
support for single-stepping, and I'm not entirely convinced the
MI DDB software-emulated single-stepping logic is 100% correct.)
- Logic for when to drop into DDB needs some improvement.

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