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2003-11-07 Christian Groessler <chris@groessler.org>

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* doc/c-z8k.texi: Document command-line options.  Fix byte
	register names.  Document '.z8001' and '.z8002' directives.
	Extend addressing modes documentation.
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Christian Groessler 2003-11-07 20:43:15 +00:00
parent 22c7ba1aba
commit e2a2ebaad5
2 changed files with 42 additions and 17 deletions
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@ -1,3 +1,9 @@
2003-11-07 Christian Groessler <chris@groessler.org>
* doc/c-z8k.texi: Document command-line options. Fix byte
register names. Document '.z8001' and '.z8002' directives.
Extend addressing modes documentation.
2003-11-07 Jonathan R. Grant <jg-binutils@jguk.org>
* input-file.c (input_file_open): Use "No such file" error

53
gas/doc/c-z8k.texi
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@ -24,7 +24,7 @@ register. @xref{Z8000 Directives,,Assembler Directives for the Z8000},
for a list of other Z8000 specific assembler directives.
@menu
* Z8000 Options:: No special command-line options for Z8000
* Z8000 Options:: Command-line options for the Z8000
* Z8000 Syntax:: Assembler syntax for the Z8000
* Z8000 Directives:: Special directives for the Z8000
* Z8000 Opcodes:: Opcodes
@ -35,8 +35,15 @@ for a list of other Z8000 specific assembler directives.
@cindex Z8000 options
@cindex options, Z8000
@code{@value{AS}} has no additional command-line options for the Zilog
Z8000 family.
@table @option
@cindex @code{-z8001} command line option, Z8000
@item -z8001
Generate segmented code by default.
@cindex @code{-z8002} command line option, Z8000
@item -z8002
Generate unsegmented code by default.
@end table
@node Z8000 Syntax
@section Syntax
@ -68,12 +75,12 @@ to different sized groups of registers by register number, with the
prefix @samp{r} for 16 bit registers, @samp{rr} for 32 bit registers and
@samp{rq} for 64 bit registers. You can also refer to the contents of
the first eight (of the sixteen 16 bit registers) by bytes. They are
named @samp{r@var{n}h} and @samp{r@var{n}l}.
named @samp{rl@var{n}} and @samp{rh@var{n}}.
@smallexample
@exdent @emph{byte registers}
r0l r0h r1h r1l r2h r2l r3h r3l
r4h r4l r5h r5l r6h r6l r7h r7l
rl0 rh0 rl1 rh1 rl2 rh2 rl3 rh3
rl4 rh4 rl5 rh5 rl6 rh6 rl7 rh7
@exdent @emph{word registers}
r0 r1 r2 r3 r4 r5 r6 r7 r8 r9 r10 r11 r12 r13 r14 r15
@ -93,11 +100,17 @@ rq0 rq4 rq8 rq12
@value{AS} understands the following addressing modes for the Z8000:
@table @code
@item r@var{n}
Register direct
@item rl@var{n}
@itemx rh@var{n}
@itemx r@var{n}
@itemx rr@var{n}
@itemx rq@var{n}
Register direct: 8bit, 16bit, 32bit, and 64bit registers.
@item @@r@var{n}
Indirect register
@itemx @@rr@var{n}
Indirect register: @@rr@var{n} in segmented mode, @@r@var{n} in unsegmented
mode.
@item @var{addr}
Direct: the 16 bit or 24 bit address (depending on whether the assembler
@ -108,14 +121,16 @@ Indexed: the 16 or 24 bit address is added to the 16 bit register to produce
the final address in memory of the operand.
@item r@var{n}(#@var{imm})
@itemx rr@var{n}(#@var{imm})
Base Address: the 16 or 24 bit register is added to the 16 bit sign
extended immediate displacement to produce the final address in memory
of the operand.
@item r@var{n}(r@var{m})
Base Index: the 16 or 24 bit register r@var{n} is added to the sign
extended 16 bit index register r@var{m} to produce the final address in
memory of the operand.
@itemx rr@var{n}(r@var{m})
Base Index: the 16 or 24 bit register r@var{n} or rr@var{n} is added to
the sign extended 16 bit index register r@var{m} to produce the final
address in memory of the operand.
@item #@var{xx}
Immediate data @var{xx}.
@ -126,18 +141,22 @@ Immediate data @var{xx}.
@cindex Z8000 directives
@cindex directives, Z8000
The Z8000 port of @value{AS} includes these additional assembler directives,
for compatibility with other Z8000 assemblers. As shown, these do not
begin with @samp{.} (unlike the ordinary @value{AS} directives).
The Z8000 port of @value{AS} includes additional assembler directives,
for compatibility with other Z8000 assemblers. These do not begin with
@samp{.} (unlike the ordinary @value{AS} directives).
@table @code
@kindex segm
@item segm
Generates code for the segmented Z8001.
@kindex .z8001
@itemx .z8001
Generate code for the segmented Z8001.
@kindex unsegm
@item unsegm
Generates code for the unsegmented Z8002.
@kindex .z8002
@itemx .z8002
Generate code for the unsegmented Z8002.
@kindex name
@item name