mirror/nasm
2
0
Fork 0
mirror of https://github.com/netwide-assembler/nasm.git synced 2025-01-18 16:25:05 +08:00
Code Issues Packages Projects Releases Wiki Activity

*** empty log message ***

Browse Source
This commit is contained in:
Debbie Wiles 2002-05-09 21:23:55 +00:00
parent 10eb0c3e47
commit 1c7da40456
2 changed files with 76 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

107
doc/nasmdoc.src
View File

@ -253,38 +253,38 @@ team of developers, accessible through the \c{nasm-devel} mailing list
If you want to report a bug, please read \k{bugs} first.
NASM has a \i{WWW page} at
\W{http://www.web-sites.co.uk/nasm}\c{http://www.web-sites.co.uk/nasm}.
\W{http://www.web-sites.co.uk/nasm}\c{http://www.web-sites.co.uk/nasm},
and another, with additional information, at
\W{http://nasm.2y.net/}\c{http://nasm.2y.net/}
The original authors are \i{e\-mail}able as
\W{mailto:jules@dsf.org.uk}\c{jules@dsf.org.uk} and
\W{mailto:anakin@pobox.com}\c{anakin@pobox.com}.
The latter is no longer involved in the development team.
\i{New releases} of NASM are uploaded to the official site
\W{http://www.web-sites.co.uk/nasm}\c{http://www.web-sites.co.uk/nasm},
\i{New releases} of NASM are uploaded to the official sites
\W{http://www.web-sites.co.uk/nasm}\c{http://www.web-sites.co.uk/nasm}
and to
\W{ftp://ftp.kernel.org/pub/software/devel/nasm/}\i\c{ftp.kernel.org}
and
\W{ftp://ibiblio.org/pub/Linux/devel/lang/assemblers/}\i\c{ibiblio.org}.
\# \W{ftp://ftp.simtel.net/pub/simtelnet/msdos/asmutl/}\i\c{ftp.simtel.net}
\# and
\# \W{ftp://ftp.coast.net/coast/msdos/asmutil/}\i\c{ftp.coast.net}.
Announcements are posted to
\W{news:comp.lang.asm.x86}\i\c{comp.lang.asm.x86},
\W{news:alt.lang.asm}\i\c{alt.lang.asm} and
\W{news:comp.os.linux.announce}\i\c{comp.os.linux.announce}
\# and
\# \W{news:comp.archives.msdos.announce}\i\c{comp.archives.msdos.announce}
\# (the last one is done automagically by uploading to
\# \W{ftp://ftp.simtel.net/pub/simtelnet/msdos/asmutl/}\c{ftp.simtel.net}).
If you want information about NASM beta releases, and the current
development status, please subscribe to the \i\c{nasm-devel} email lists
development status, please subscribe to the \i\c{nasm-devel} email list
by registering at
\W{http://groups.yahoo.com/group/nasm-devel}\c{http://groups.yahoo.com/group/nasm-devel}
and
\W{http://groups.yahoo.com/group/nasm-devel}\c{http://groups.yahoo.com/group/nasm-devel},
\W{http://www.pairlist.net/mailman/listinfo/nasm-devel}\c{http://www.pairlist.net/mailman/listinfo/nasm-devel}
and
\W{http://sourceforge.net/projects/nasm}\c{http://sourceforge.net/projects/nasm}.
The preferred list is the list at Sourceforge, which is also the home to
the latest nasm source code and releases. The other lists are open, but
may not continue to be supported in the long term.
\H{install} Installation
@ -784,9 +784,9 @@ character} for options. So setting the \c{NASMENV} variable to the
value \c{!-s!-ic:\\nasmlib} is equivalent to setting it to \c{-s
-ic:\\nasmlib}, but \c{!-dNAME="my name"} will work.
This variable was called \c{NASM} in earlier versions of NASM,
however, this caused problems with makefiles which used a \c{$(NASM)}
variable.
This environment variable was previously called \c{NASM}. This was
changed with version 0.98.31.
\H{qstart} \i{Quick Start} for \i{MASM} Users
@ -1676,14 +1676,52 @@ You can \i{pre-define} single-line macros using the `-d' option on
the NASM command line: see \k{opt-d}.
\S{concat%+} Concatenating Single Line Macro Tokens: \i\c{%+}
Individual tokens in single line macros can be concatenated, to produce
longer tokens for later processing. This can be useful if there are
several similar macros that perform simlar functions.
As an example, consider the following:
\c %define BDASTART 400h ; Start of BIOS data area
\c struc tBIOSDA ; its structure
\c .COM1addr RESW 1
\c .COM2addr RESW 1
\c ; ..and so on
\c endstruc
Now, if we need to access the elements of tBIOSDA in different places,
we can end up with:
\c mov ax,BDASTART + tBIOSDA.COM1addr
\c mov bx,BDASTART + tBIOSDA.COM2addr
This will become pretty ugly (and tedious) if used in many places, and
can be reduced in size significantly by using the following macro:
\c ; Macro to access BIOS variables by their names (from tBDA):
\c %define BDA(x) BDASTART + tBIOSDA. %+ x
Now the above code can be written as:
\c mov ax,BDA(COM1addr)
\c mov bx,BDA(COM2addr)
Using this feature, we can simplify references to a lot of macros (and,
in turn, reduce typing errors).
\S{undef} Undefining macros: \i\c{%undef}
Single-line macros can be removed with the \c{%undef} command. For
example, the following sequence:
\c %define foo bar
\c %undef foo
\c mov eax, foo
\c %undef foo
\c mov eax, foo
will expand to the instruction \c{mov eax, foo}, since after
\c{%undef} the macro \c{foo} is no longer defined.
@ -1776,8 +1814,8 @@ this.
\c %macro prologue 1
\c push ebp
\c mov ebp,esp
\c sub esp,%1
\c mov ebp,esp
\c sub esp,%1
\c %endmacro
This defines a C-like function prologue as a macro: so you would
@ -1788,8 +1826,8 @@ invoke the macro with a call such as
which would expand to the three lines of code
\c myfunc: push ebp
\c mov ebp,esp
\c sub esp,12
\c mov ebp,esp
\c sub esp,12
The number \c{1} after the macro name in the \c{%macro} line defines
the number of parameters the macro \c{prologue} expects to receive.
@ -5631,8 +5669,9 @@ We have never yet released a version of NASM with any \e{known}
bugs. That doesn't usually stop there being plenty we didn't know
about, though. Any that you find should be reported firstly via the
\i\c{bugtracker} at
\W{http://nasm.2y.net/bugtracker/}\c{http://nasm.2y.net/bugtracker/},
or if that fails then through one of the contacts in \k{contact}
\W{https://sourceforge.net/projects/nasm/}\c{https://sourceforge.net/projects/nasm/}
(click on "Bugs"), or if that fails then through one of the
contacts in \k{contact}.
Please read \k{qstart} first, and don't report the bug if it's
listed in there as a deliberate feature. (If you think the feature
@ -5909,7 +5948,7 @@ disassembler works, because as far as I know, it isn't an efficient
one anyway. You have been warned.
\A{iref} Intel x86 Instruction Reference
\A{iref} x86 Instruction Reference
This appendix provides a complete list of the machine instructions
which NASM will assemble, and a short description of the function of
@ -5918,7 +5957,7 @@ each one.
It is not intended to be exhaustive documentation on the fine
details of the instructions' function, such as which exceptions they
can trigger: for such documentation, you should go to Intel's Web
site, \W{http://www.intel.com/}\c{http://www.intel.com/}.
site, \W{http://developer.intel.com/design/Pentium4/manuals/}\c{http://developer.intel.com/design/Pentium4/manuals/}.
Instead, this appendix is intended primarily to provide
documentation on the way the instructions may be used within NASM.
@ -12065,13 +12104,13 @@ entry point in an operating system.
\b The \c{EIP} register is copied into the \c{ECX} register.
\b Bits [31–0] of the 64-bit SYSCALL/SYSRET Target Address Register
\b Bits [31-0] of the 64-bit SYSCALL/SYSRET Target Address Register
(\c{STAR}) are copied into the \c{EIP} register.
\b Bits [47–32] of the \c{STAR} register specify the selector that is
\b Bits [47-32] of the \c{STAR} register specify the selector that is
copied into the \c{CS} register.
\b Bits [47–32]+1000b of the \c{STAR} register specify the selector that
\b Bits [47-32]+1000b of the \c{STAR} register specify the selector that
is copied into the SS register.
The \c{CS} and \c{SS} registers should not be modified by the operating
@ -12126,7 +12165,7 @@ In particular, note that this instruction des not save the values of
\c{CS} or \c{(E)IP}. If you need to return to the calling code, you
need to write your code to cater for this.
For more information, see the Intel Architecture Software Developer’s
For more information, see the Intel Architecture Software Developer's
Manual, Volume 2.
@ -12184,14 +12223,14 @@ Manual, Volume 2.
after the corresponding \c{SYSCALL} instruction, is copied into the \c{EIP}
register.
\b Bits [63–48] of the \c{STAR} register specify the selector that is copied
\b Bits [63-48] of the \c{STAR} register specify the selector that is copied
into the \c{CS} register.
\b Bits [63–48]+1000b of the \c{STAR} register specify the selector that is
\b Bits [63-48]+1000b of the \c{STAR} register specify the selector that is
copied into the \c{SS} register.
\b Bits [1–0] of the \c{SS} register are set to 11b (RPL of 3) regardless of
the value of bits [49–48] of the \c{STAR} register.
\b Bits [1-0] of the \c{SS} register are set to 11b (RPL of 3) regardless of
the value of bits [49-48] of the \c{STAR} register.
The \c{CS} and \c{SS} registers should not be modified by the operating
system between the execution of the \c{SYSCALL} instruction and its

6
insns.dat
View File

@ -139,9 +139,9 @@ CALL imm|far \322\1\x9A\34\37 8086,ND
CALL imm16 \320\1\xE8\64 8086
CALL imm16|near \320\1\xE8\64 8086
CALL imm16|far \320\1\x9A\34\37 8086,ND
CALL imm32 \321\1\xE8\64 8086
CALL imm32|near \321\1\xE8\64 8086
CALL imm32|far \321\1\x9A\34\37 8086,ND
CALL imm32 \321\1\xE8\64 386
CALL imm32|near \321\1\xE8\64 386
CALL imm32|far \321\1\x9A\34\37 386,ND
CALL imm:imm \322\1\x9A\35\30 8086
CALL imm16:imm \320\1\x9A\31\30 8086
CALL imm:imm16 \320\1\x9A\31\30 8086