@cindex machine directives, AMD 29K
@cindex AMD 29K machine directives
@table @code
-@item .block @var{size} , @var{fill}
@cindex @code{block} directive, AMD 29K
+@item .block @var{size} , @var{fill}
This directive emits @var{size} bytes, each of value @var{fill}. Both
@var{size} and @var{fill} are absolute expressions. If the comma
and @var{fill} are omitted, @var{fill} is assumed to be zero.
@end table
@table @code
-@item .cputype
@cindex @code{cputype} directive, AMD 29K
+@item .cputype
This directive is ignored; it is accepted for compatibility with other
AMD 29K assemblers.
-@item .file
@cindex @code{file} directive, AMD 29K
+@item .file
This directive is ignored; it is accepted for compatibility with other
AMD 29K assemblers.
used for the directive called @code{.app-file} in the AMD 29K support.
@end quotation
-@item .line
@cindex @code{line} directive, AMD 29K
+@item .line
This directive is ignored; it is accepted for compatibility with other
AMD 29K assemblers.
@ignore
@c since we're ignoring .lsym...
-@item .reg @var{symbol}, @var{expression}
@cindex @code{reg} directive, AMD 29K
+@item .reg @var{symbol}, @var{expression}
@code{.reg} has the same effect as @code{.lsym}; @pxref{Lsym,,@code{.lsym}}.
@end ignore
-@item .sect
@cindex @code{sect} directive, AMD 29K
+@item .sect
This directive is ignored; it is accepted for compatibility with other
AMD 29K assemblers.
-@item .use @var{section name}
@cindex @code{use} directive, AMD 29K
+@item .use @var{section name}
Establishes the section and subsection for the following code;
@var{section name} may be one of @code{.text}, @code{.data},
@code{.data1}, or @code{.lit}. With one of the first three @var{section
--- /dev/null
+@c Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+@c This is part of the GAS manual.
+@c For copying conditions, see the file as.texinfo.
+@ifset GENERIC
+@page
+@node i960-Dependent
+@chapter Intel 80960 Dependent Features
+@end ifset
+@ifclear GENERIC
+@node Machine Dependencies
+@chapter Intel 80960 Dependent Features
+@end ifclear
+
+@cindex i960 support
+@menu
+* Options-i960:: i960 Command-line Options
+* Floating Point-i960:: Floating Point
+* Directives-i960:: i960 Machine Directives
+* Opcodes for i960:: i960 Opcodes
+@end menu
+
+@c FIXME! Add Syntax sec with discussion of bitfields here, at least so
+@c long as they're not turned on for other machines than 960.
+
+@node Options-i960
+
+@section i960 Command-line Options
+
+@cindex i960 options
+@cindex options, i960
+@table @code
+
+@cindex i960 architecture options
+@cindex architecture options, i960
+@cindex @code{-A} options, i960
+@item -ACA | -ACA_A | -ACB | -ACC | -AKA | -AKB | -AKC | -AMC
+Select the 80960 architecture. Instructions or features not supported
+by the selected architecture cause fatal errors.
+
+@samp{-ACA} is equivalent to @samp{-ACA_A}; @samp{-AKC} is equivalent to
+@samp{-AMC}. Synonyms are provided for compatibility with other tools.
+
+If you do not specify any of these options, @code{@value{AS}} generates code
+for any instruction or feature that is supported by @emph{some} version of the
+960 (even if this means mixing architectures!). In principle,
+@code{@value{AS}} attempts to deduce the minimal sufficient processor type if
+none is specified; depending on the object code format, the processor type may
+be recorded in the object file. If it is critical that the @code{@value{AS}}
+output match a specific architecture, specify that architecture explicitly.
+
+@cindex @code{-b} option, i960
+@cindex branch recording, i960
+@cindex i960 branch recording
+@item -b
+Add code to collect information about conditional branches taken, for
+later optimization using branch prediction bits. (The conditional branch
+instructions have branch prediction bits in the CA, CB, and CC
+architectures.) If @var{BR} represents a conditional branch instruction,
+the following represents the code generated by the assembler when
+@samp{-b} is specified:
+
+@smallexample
+ call @var{increment routine}
+ .word 0 # pre-counter
+Label: @var{BR}
+ call @var{increment routine}
+ .word 0 # post-counter
+@end smallexample
+
+The counter following a branch records the number of times that branch
+was @emph{not} taken; the differenc between the two counters is the
+number of times the branch @emph{was} taken.
+
+@cindex @code{gbr960}, i960 postprocessor
+@cindex branch statistics table, i960
+A table of every such @code{Label} is also generated, so that the
+external postprocessor @code{gbr960} (supplied by Intel) can locate all
+the counters. This table is always labelled @samp{__BRANCH_TABLE__};
+this is a local symbol to permit collecting statistics for many separate
+object files. The table is word aligned, and begins with a two-word
+header. The first word, initialized to 0, is used in maintaining linked
+lists of branch tables. The second word is a count of the number of
+entries in the table, which follow immediately: each is a word, pointing
+to one of the labels illustrated above.
+
+@c TEXI2ROFF-KILL
+@ifinfo
+@c END TEXI2ROFF-KILL
+@example
+ +------------+------------+------------+ ... +------------+
+ | | | | | |
+ | *NEXT | COUNT: N | *BRLAB 1 | | *BRLAB N |
+ | | | | | |
+ +------------+------------+------------+ ... +------------+
+
+ __BRANCH_TABLE__ layout
+@end example
+@c TEXI2ROFF-KILL
+@end ifinfo
+@need 2000
+@tex
+\vskip 1pc
+\line{\leftskip=0pt\hskip\tableindent
+\boxit{2cm}{\tt *NEXT}\boxit{2cm}{\tt COUNT: \it N}\boxit{2cm}{\tt
+*BRLAB 1}\ibox{1cm}{\quad\dots}\boxit{2cm}{\tt *BRLAB \it N}\hfil}
+\centerline{\it {\tt \_\_BRANCH\_TABLE\_\_} layout}
+@end tex
+@c END TEXI2ROFF-KILL
+
+The first word of the header is used to locate multiple branch tables,
+since each object file may contain one. Normally the links are
+maintained with a call to an initialization routine, placed at the
+beginning of each function in the file. The @sc{gnu} C compiler
+generates these calls automatically when you give it a @samp{-b} option.
+For further details, see the documentation of @samp{gbr960}.
+
+@cindex @code{-no-relax} option, i960
+@item -no-relax
+Normally, Compare-and-Branch instructions with targets that require
+displacements greater than 13 bits (or that have external targets) are
+replaced with the corresponding compare (or @samp{chkbit}) and branch
+instructions. You can use the @samp{-no-relax} option to specify that
+@code{@value{AS}} should generate errors instead, if the target displacement
+is larger than 13 bits.
+
+This option does not affect the Compare-and-Jump instructions; the code
+emitted for them is @emph{always} adjusted when necessary (depending on
+displacement size), regardless of whether you use @samp{-no-relax}.
+@end table
+
+@node Floating Point-i960
+@section Floating Point
+
+@cindex floating point, i960 (@sc{ieee})
+@cindex i960 floating point (@sc{ieee})
+@code{@value{AS}} generates @sc{ieee} floating-point numbers for the directives
+@samp{.float}, @samp{.double}, @samp{.extended}, and @samp{.single}.
+
+@node Directives-i960
+@section i960 Machine Directives
+
+@cindex machine directives, i960
+@cindex i960 machine directives
+
+@table @code
+@cindex @code{bss} directive, i960
+@item .bss @var{symbol}, @var{length}, @var{align}
+Reserve @var{length} bytes in the bss section for a local @var{symbol},
+aligned to the power of two specified by @var{align}. @var{length} and
+@var{align} must be positive absolute expressions. This directive
+differs from @samp{.lcomm} only in that it permits you to specify
+an alignment. @xref{Lcomm,,@code{.lcomm}}.
+@end table
+
+@table @code
+@cindex @code{extended} directive, i96
+@item .extended @var{flonums}
+@code{.extended} expects zero or more flonums, separated by commas; for
+each flonum, @samp{.extended} emits an @sc{ieee} extended-format (80-bit)
+floating-point number.
+
+@cindex @code{leafproc} directive, i960
+@item .leafproc @var{call-lab}, @var{bal-lab}
+You can use the @samp{.leafproc} directive in conjunction with the
+optimized @code{callj} instruction to enable faster calls of leaf
+procedures. If a procedure is known to call no other procedures, you
+may define an entry point that skips procedure prolog code (and that does
+not depend on system-supplied saved context), and declare it as the
+@var{bal-lab} using @samp{.leafproc}. If the procedure also has an
+entry point that goes through the normal prolog, you can specify that
+entry point as @var{call-lab}.
+
+A @samp{.leafproc} declaration is meant for use in conjunction with the
+optimized call instruction @samp{callj}; the directive records the data
+needed later to choose between converting the @samp{callj} into a
+@code{bal} or a @code{call}.
+
+@var{call-lab} is optional; if only one argument is present, or if the
+two arguments are identical, the single argument is assumed to be the
+@code{bal} entry point.
+
+@cindex @code{sysproc} directive, i960
+@item .sysproc @var{name}, @var{index}
+The @samp{.sysproc} directive defines a name for a system procedure.
+After you define it using @samp{.sysproc}, you can use @var{name} to
+refer to the system procedure identified by @var{index} when calling
+procedures with the optimized call instruction @samp{callj}.
+
+Both arguments are required; @var{index} must be between 0 and 31
+(inclusive).
+@end table
+
+@node Opcodes for i960
+@section i960 Opcodes
+
+@cindex opcodes, i960
+@cindex i960 opcodes
+All Intel 960 machine instructions are supported;
+@pxref{Options-i960,,i960 Command-line Options} for a discussion of
+selecting the instruction subset for a particular 960
+architecture.@refill
+
+Some opcodes are processed beyond simply emitting a single corresponding
+instruction: @samp{callj}, and Compare-and-Branch or Compare-and-Jump
+instructions with target displacements larger than 13 bits.
+
+@menu
+* callj-i960:: @code{callj}
+* Compare-and-branch-i960:: Compare-and-Branch
+@end menu
+
+@node callj-i960
+@subsection @code{callj}
+
+@cindex @code{callj}, i960 pseudo-opcode
+@cindex i960 @code{callj} pseudo-opcode
+You can write @code{callj} to have the assembler or the linker determine
+the most appropriate form of subroutine call: @samp{call},
+@samp{bal}, or @samp{calls}. If the assembly source contains
+enough information---a @samp{.leafproc} or @samp{.sysproc} directive
+defining the operand---then @code{@value{AS}} translates the
+@code{callj}; if not, it simply emits the @code{callj}, leaving it
+for the linker to resolve.
+
+@node Compare-and-branch-i960
+@subsection Compare-and-Branch
+
+@cindex i960 compare/branch instructions
+@cindex compare/branch instructions, i960
+The 960 architectures provide combined Compare-and-Branch instructions
+that permit you to store the branch target in the lower 13 bits of the
+instruction word itself. However, if you specify a branch target far
+enough away that its address won't fit in 13 bits, the assembler can
+either issue an error, or convert your Compare-and-Branch instruction
+into separate instructions to do the compare and the branch.
+
+@cindex compare and jump expansions, i960
+@cindex i960 compare and jump expansions
+Whether @code{@value{AS}} gives an error or expands the instruction depends
+on two choices you can make: whether you use the @samp{-no-relax} option,
+and whether you use a ``Compare and Branch'' instruction or a ``Compare
+and Jump'' instruction. The ``Jump'' instructions are @emph{always}
+expanded if necessary; the ``Branch'' instructions are expanded when
+necessary @emph{unless} you specify @code{-no-relax}---in which case
+@code{@value{AS}} gives an error instead.
+
+These are the Compare-and-Branch instructions, their ``Jump'' variants,
+and the instruction pairs they may expand into:
+
+@c TEXI2ROFF-KILL
+@ifinfo
+@c END TEXI2ROFF-KILL
+@example
+ Compare and
+ Branch Jump Expanded to
+ ------ ------ ------------
+ bbc chkbit; bno
+ bbs chkbit; bo
+ cmpibe cmpije cmpi; be
+ cmpibg cmpijg cmpi; bg
+ cmpibge cmpijge cmpi; bge
+ cmpibl cmpijl cmpi; bl
+ cmpible cmpijle cmpi; ble
+ cmpibno cmpijno cmpi; bno
+ cmpibne cmpijne cmpi; bne
+ cmpibo cmpijo cmpi; bo
+ cmpobe cmpoje cmpo; be
+ cmpobg cmpojg cmpo; bg
+ cmpobge cmpojge cmpo; bge
+ cmpobl cmpojl cmpo; bl
+ cmpoble cmpojle cmpo; ble
+ cmpobne cmpojne cmpo; bne
+@end example
+@c TEXI2ROFF-KILL
+@end ifinfo
+@tex
+\hskip\tableindent
+\halign{\hfil {\tt #}\quad&\hfil {\tt #}\qquad&{\tt #}\hfil\cr
+\omit{\hfil\it Compare and\hfil}\span\omit&\cr
+{\it Branch}&{\it Jump}&{\it Expanded to}\cr
+ bbc& & chkbit; bno\cr
+ bbs& & chkbit; bo\cr
+ cmpibe& cmpije& cmpi; be\cr
+ cmpibg& cmpijg& cmpi; bg\cr
+ cmpibge& cmpijge& cmpi; bge\cr
+ cmpibl& cmpijl& cmpi; bl\cr
+ cmpible& cmpijle& cmpi; ble\cr
+ cmpibno& cmpijno& cmpi; bno\cr
+ cmpibne& cmpijne& cmpi; bne\cr
+ cmpibo& cmpijo& cmpi; bo\cr
+ cmpobe& cmpoje& cmpo; be\cr
+ cmpobg& cmpojg& cmpo; bg\cr
+ cmpobge& cmpojge& cmpo; bge\cr
+ cmpobl& cmpojl& cmpo; bl\cr
+ cmpoble& cmpojle& cmpo; ble\cr
+ cmpobne& cmpojne& cmpo; bne\cr}
+@end tex
+@c END TEXI2ROFF-KILL
--- /dev/null
+@c Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+@c This is part of the GAS manual.
+@c For copying conditions, see the file as.texinfo.
+@ifset GENERIC
+@page
+@node Sparc-Dependent
+@chapter SPARC Dependent Features
+@end ifset
+@ifclear GENERIC
+@node Machine Dependencies
+@chapter SPARC Dependent Features
+@end ifclear
+
+@cindex SPARC support
+@menu
+* Sparc-Opts:: Options
+* Sparc-Float:: Floating Point
+* Sparc-Directives:: Sparc Machine Directives
+@end menu
+
+@node Sparc-Opts
+@section Options
+
+@cindex options for SPARC
+@cindex SPARC options
+@cindex architectures, SPARC
+@cindex SPARC architectures
+The SPARC chip family includes several successive levels (or other
+variants) of chip, using the same core instruction set, but including
+a few additional instructions at each level.
+
+By default, @code{@value{AS}} assumes the core instruction set (SPARC
+v6), but ``bumps'' the architecture level as needed: it switches to
+successively higher architectures as it encounters instructions that
+only exist in the higher levels.
+
+@table @code
+@kindex -Av6
+@kindex Av7
+@kindex -Av8
+@kindex -Av9
+@kindex -Asparclite
+@item -Av6 | -Av7 | -Av8 | -Av9 | -Asparclite
+Use one of the @samp{-A} options to select one of the SPARC
+architectures explicitly. If you select an architecture explicitly,
+@code{@value{AS}} reports a fatal error if it encounters an instruction
+or feature requiring a higher level.
+
+@item -bump
+Permit the assembler to ``bump'' the architecture level as required, but
+warn whenever it is necessary to switch to another level.
+@end table
+
+@ignore
+@c FIXME: (sparc) Fill in "syntax" section!
+@c subsection syntax
+I don't know anything about Sparc syntax. Someone who does
+will have to write this section.
+@end ignore
+
+@node Sparc-Float
+@section Floating Point
+
+@cindex floating point, SPARC (@sc{ieee})
+@cindex SPARC floating point (@sc{ieee})
+The Sparc uses @sc{ieee} floating-point numbers.
+
+@node Sparc-Directives
+@section Sparc Machine Directives
+
+@cindex SPARC machine directives
+@cindex machine directives, SPARC
+The Sparc version of @code{@value{AS}} supports the following additional
+machine directives:
+
+@table @code
+@cindex @code{align} directive, SPARC
+@item .align
+This must be followed by the desired alignment in bytes.
+
+@cindex @code{common} directive, SPARC
+@item .common
+This must be followed by a symbol name, a positive number, and
+@code{"bss"}. This behaves somewhat like @code{.comm}, but the
+syntax is different.
+
+@cindex @code{half} directive, SPARC
+@item .half
+This is functionally identical to @code{.short}.
+
+@cindex @code{proc} directive, SPARC
+@item .proc
+This directive is ignored. Any text following it on the same
+line is also ignored.
+
+@cindex @code{reserve} directive, SPARC
+@item .reserve
+This must be followed by a symbol name, a positive number, and
+@code{"bss"}. This behaves somewhat like @code{.lcomm}, but the
+syntax is different.
+
+@cindex @code{seg} directive, SPARC
+@item .seg
+This must be followed by @code{"text"}, @code{"data"}, or
+@code{"data1"}. It behaves like @code{.text}, @code{.data}, or
+@code{.data 1}.
+
+@cindex @code{skip} directive, SPARC
+@item .skip
+This is functionally identical to the @code{.space} directive.
+
+@cindex @code{word} directive, SPARC
+@item .word
+On the Sparc, the @code{.word} directive produces 32 bit values,
+instead of the 16 bit values it produces on many other machines.
+
+@cindex @code{xword} directive, SPARC
+@item .xword
+On the Sparc V9 processor, the @code{.xword} directive produces
+64 bit values.
+@end table
+
--- /dev/null
+@c Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+@c This is part of the GAS manual.
+@c For copying conditions, see the file as.texinfo.
+@ifset GENERIC
+@node Vax-Dependent
+@chapter VAX Dependent Features
+@cindex VAX support
+
+@end ifset
+@ifclear GENERIC
+@node Machine Dependencies
+@chapter VAX Dependent Features
+@cindex VAX support
+
+@end ifclear
+
+@menu
+* Vax-Opts:: VAX Command-Line Options
+* VAX-float:: VAX Floating Point
+* VAX-directives:: Vax Machine Directives
+* VAX-opcodes:: VAX Opcodes
+* VAX-branch:: VAX Branch Improvement
+* VAX-operands:: VAX Operands
+* VAX-no:: Not Supported on VAX
+@end menu
+
+
+@node Vax-Opts
+@section VAX Command-Line Options
+
+@cindex command-line options ignored, VAX
+@cindex VAX command-line options ignored
+The Vax version of @code{@value{AS}} accepts any of the following options,
+gives a warning message that the option was ignored and proceeds.
+These options are for compatibility with scripts designed for other
+people's assemblers.
+
+@table @code
+@cindex @code{-D}, ignored on VAX
+@cindex @code{-S}, ignored on VAX
+@cindex @code{-T}, ignored on VAX
+@item @code{-D} (Debug)
+@itemx @code{-S} (Symbol Table)
+@itemx @code{-T} (Token Trace)
+These are obsolete options used to debug old assemblers.
+
+@cindex @code{-d}, VAX option
+@item @code{-d} (Displacement size for JUMPs)
+This option expects a number following the @samp{-d}. Like options
+that expect filenames, the number may immediately follow the
+@samp{-d} (old standard) or constitute the whole of the command line
+argument that follows @samp{-d} (@sc{gnu} standard).
+
+@cindex @code{-V}, redundant on VAX
+@item @code{-V} (Virtualize Interpass Temporary File)
+Some other assemblers use a temporary file. This option
+commanded them to keep the information in active memory rather
+than in a disk file. @code{@value{AS}} always does this, so this
+option is redundant.
+
+@cindex @code{-J}, ignored on VAX
+@item @code{-J} (JUMPify Longer Branches)
+Many 32-bit computers permit a variety of branch instructions
+to do the same job. Some of these instructions are short (and
+fast) but have a limited range; others are long (and slow) but
+can branch anywhere in virtual memory. Often there are 3
+flavors of branch: short, medium and long. Some other
+assemblers would emit short and medium branches, unless told by
+this option to emit short and long branches.
+
+@cindex @code{-t}, ignored on VAX
+@item @code{-t} (Temporary File Directory)
+Some other assemblers may use a temporary file, and this option
+takes a filename being the directory to site the temporary
+file. Since @code{@value{AS}} does not use a temporary disk file, this
+option makes no difference. @samp{-t} needs exactly one
+filename.
+@end table
+
+@cindex VMS (VAX) options
+@cindex options for VAX/VMS
+@cindex VAX/VMS options
+@cindex @code{-h} option, VAX/VMS
+@cindex @code{-+} option, VAX/VMS
+@cindex Vax-11 C compatibility
+@cindex symbols with lowercase, VAX/VMS
+@c FIXME! look into "I think" below, correct if needed, delete.
+The Vax version of the assembler accepts two options when
+compiled for VMS. They are @samp{-h}, and @samp{-+}. The
+@samp{-h} option prevents @code{@value{AS}} from modifying the
+symbol-table entries for symbols that contain lowercase
+characters (I think). The @samp{-+} option causes @code{@value{AS}} to
+print warning messages if the FILENAME part of the object file,
+or any symbol name is larger than 31 characters. The @samp{-+}
+option also inserts some code following the @samp{_main}
+symbol so that the object file is compatible with Vax-11
+"C".
+
+@node VAX-float
+@section VAX Floating Point
+
+@cindex VAX floating point
+@cindex floating point, VAX
+Conversion of flonums to floating point is correct, and
+compatible with previous assemblers. Rounding is
+towards zero if the remainder is exactly half the least significant bit.
+
+@code{D}, @code{F}, @code{G} and @code{H} floating point formats
+are understood.
+
+Immediate floating literals (@emph{e.g.} @samp{S`$6.9})
+are rendered correctly. Again, rounding is towards zero in the
+boundary case.
+
+@cindex @code{float} directive, VAX
+@cindex @code{double} directive, VAX
+The @code{.float} directive produces @code{f} format numbers.
+The @code{.double} directive produces @code{d} format numbers.
+
+@node VAX-directives
+@section Vax Machine Directives
+
+@cindex machine directives, VAX
+@cindex VAX machine directives
+The Vax version of the assembler supports four directives for
+generating Vax floating point constants. They are described in the
+table below.
+
+@cindex wide floating point directives, VAX
+@table @code
+@cindex @code{dfloat} directive, VAX
+@item .dfloat
+This expects zero or more flonums, separated by commas, and
+assembles Vax @code{d} format 64-bit floating point constants.
+
+@cindex @code{ffloat} directive, VAX
+@item .ffloat
+This expects zero or more flonums, separated by commas, and
+assembles Vax @code{f} format 32-bit floating point constants.
+
+@cindex @code{gfloat} directive, VAX
+@item .gfloat
+This expects zero or more flonums, separated by commas, and
+assembles Vax @code{g} format 64-bit floating point constants.
+
+@cindex @code{hfloat} directive, VAX
+@item .hfloat
+This expects zero or more flonums, separated by commas, and
+assembles Vax @code{h} format 128-bit floating point constants.
+
+@end table
+
+@node VAX-opcodes
+@section VAX Opcodes
+
+@cindex VAX opcode mnemonics
+@cindex opcode mnemonics, VAX
+@cindex mnemonics for opcodes, VAX
+All DEC mnemonics are supported. Beware that @code{case@dots{}}
+instructions have exactly 3 operands. The dispatch table that
+follows the @code{case@dots{}} instruction should be made with
+@code{.word} statements. This is compatible with all unix
+assemblers we know of.
+
+@node VAX-branch
+@section VAX Branch Improvement
+
+@cindex VAX branch improvement
+@cindex branch improvement, VAX
+@cindex pseudo-ops for branch, VAX
+Certain pseudo opcodes are permitted. They are for branch
+instructions. They expand to the shortest branch instruction that
+reaches the target. Generally these mnemonics are made by
+substituting @samp{j} for @samp{b} at the start of a DEC mnemonic.
+This feature is included both for compatibility and to help
+compilers. If you do not need this feature, avoid these
+opcodes. Here are the mnemonics, and the code they can expand into.
+
+@table @code
+@item jbsb
+@samp{Jsb} is already an instruction mnemonic, so we chose @samp{jbsb}.
+@table @asis
+@item (byte displacement)
+@kbd{bsbb @dots{}}
+@item (word displacement)
+@kbd{bsbw @dots{}}
+@item (long displacement)
+@kbd{jsb @dots{}}
+@end table
+@item jbr
+@itemx jr
+Unconditional branch.
+@table @asis
+@item (byte displacement)
+@kbd{brb @dots{}}
+@item (word displacement)
+@kbd{brw @dots{}}
+@item (long displacement)
+@kbd{jmp @dots{}}
+@end table
+@item j@var{COND}
+@var{COND} may be any one of the conditional branches
+@code{neq}, @code{nequ}, @code{eql}, @code{eqlu}, @code{gtr},
+@code{geq}, @code{lss}, @code{gtru}, @code{lequ}, @code{vc}, @code{vs},
+@code{gequ}, @code{cc}, @code{lssu}, @code{cs}.
+@var{COND} may also be one of the bit tests
+@code{bs}, @code{bc}, @code{bss}, @code{bcs}, @code{bsc}, @code{bcc},
+@code{bssi}, @code{bcci}, @code{lbs}, @code{lbc}.
+@var{NOTCOND} is the opposite condition to @var{COND}.
+@table @asis
+@item (byte displacement)
+@kbd{b@var{COND} @dots{}}
+@item (word displacement)
+@kbd{b@var{NOTCOND} foo ; brw @dots{} ; foo:}
+@item (long displacement)
+@kbd{b@var{NOTCOND} foo ; jmp @dots{} ; foo:}
+@end table
+@item jacb@var{X}
+@var{X} may be one of @code{b d f g h l w}.
+@table @asis
+@item (word displacement)
+@kbd{@var{OPCODE} @dots{}}
+@item (long displacement)
+@example
+@var{OPCODE} @dots{}, foo ;
+brb bar ;
+foo: jmp @dots{} ;
+bar:
+@end example
+@end table
+@item jaob@var{YYY}
+@var{YYY} may be one of @code{lss leq}.
+@item jsob@var{ZZZ}
+@var{ZZZ} may be one of @code{geq gtr}.
+@table @asis
+@item (byte displacement)
+@kbd{@var{OPCODE} @dots{}}
+@item (word displacement)
+@example
+@var{OPCODE} @dots{}, foo ;
+brb bar ;
+foo: brw @var{destination} ;
+bar:
+@end example
+@item (long displacement)
+@example
+@var{OPCODE} @dots{}, foo ;
+brb bar ;
+foo: jmp @var{destination} ;
+bar:
+@end example
+@end table
+@item aobleq
+@itemx aoblss
+@itemx sobgeq
+@itemx sobgtr
+@table @asis
+@item (byte displacement)
+@kbd{@var{OPCODE} @dots{}}
+@item (word displacement)
+@example
+@var{OPCODE} @dots{}, foo ;
+brb bar ;
+foo: brw @var{destination} ;
+bar:
+@end example
+@item (long displacement)
+@example
+@var{OPCODE} @dots{}, foo ;
+brb bar ;
+foo: jmp @var{destination} ;
+bar:
+@end example
+@end table
+@end table
+
+@node VAX-operands
+@section VAX Operands
+
+@cindex VAX operand notation
+@cindex operand notation, VAX
+@cindex immediate character, VAX
+@cindex VAX immediate character
+The immediate character is @samp{$} for Unix compatibility, not
+@samp{#} as DEC writes it.
+
+@cindex indirect character, VAX
+@cindex VAX indirect character
+The indirect character is @samp{*} for Unix compatibility, not
+@samp{@@} as DEC writes it.
+
+@cindex displacement sizing character, VAX
+@cindex VAX displacement sizing character
+The displacement sizing character is @samp{`} (an accent grave) for
+Unix compatibility, not @samp{^} as DEC writes it. The letter
+preceding @samp{`} may have either case. @samp{G} is not
+understood, but all other letters (@code{b i l s w}) are understood.
+
+@cindex register names, VAX
+@cindex VAX register names
+Register names understood are @code{r0 r1 r2 @dots{} r15 ap fp sp
+pc}. Upper and lower case letters are equivalent.
+
+For instance
+@smallexample
+tstb *w`$4(r5)
+@end smallexample
+
+Any expression is permitted in an operand. Operands are comma
+separated.
+
+@c There is some bug to do with recognizing expressions
+@c in operands, but I forget what it is. It is
+@c a syntax clash because () is used as an address mode
+@c and to encapsulate sub-expressions.
+
+@node VAX-no
+@section Not Supported on VAX
+
+@cindex VAX bitfields not supported
+@cindex bitfields, not supported on VAX
+Vax bit fields can not be assembled with @code{@value{AS}}. Someone
+can add the required code if they really need it.
@end tex
@vskip 0pt plus 1filll
-Copyright @copyright{} 1994 Free Software Foundation, Inc.
+Copyright @copyright{} 1994, 1995 Free Software Foundation, Inc.
Permission is granted to make and distribute verbatim copies of
this manual provided the copyright notice and this permission notice
@end titlepage
@ifinfo
-Copyright @copyright{} 1994 Free Software Foundation, Inc.
+Copyright @copyright{} 1994, 1995 Free Software Foundation, Inc.
Permission is granted to make and distribute verbatim copies of
this manual provided the copyright notice and this permission notice
projects / deliverable / binutils-gdb.git / commitdiff
