config.gcc (mmix-*-*): New target.
* config.gcc (mmix-*-*): New target. * doc/invoke.texi: Document MMIX options. * doc/contrib.texi: Add note about MMIX port to my entry. * config/mmix/t-mmix: New file. * config/mmix/mmix.h: New file. * config/mmix/mmix-protos.h: New file. * config/mmix/mmix.c: New file. * config/mmix/mmix.md: New file. * config/mmix/crti.asm: New file. * config/mmix/crtn.asm: New file. From-SVN: r46746
This commit is contained in:
Hans-Peter Nilsson
Hans-Peter Nilsson
parent
d344dce955
commit
bcf684c7a5
@ -1,3 +1,16 @@
|
||||
2001-11-03 Hans-Peter Nilsson <hp@bitrange.com>
|
||||
|
||||
* config.gcc (mmix-*-*): New target.
|
||||
* doc/invoke.texi: Document MMIX options.
|
||||
* doc/contrib.texi: Add note about MMIX port to my entry.
|
||||
* config/mmix/t-mmix: New file.
|
||||
* config/mmix/mmix.h: New file.
|
||||
* config/mmix/mmix-protos.h: New file.
|
||||
* config/mmix/mmix.c: New file.
|
||||
* config/mmix/mmix.md: New file.
|
||||
* config/mmix/crti.asm: New file.
|
||||
* config/mmix/crtn.asm: New file.
|
||||
|
||||
2001-11-03 Kazu Hirata <kazu@hxi.com>
|
||||
|
||||
* config/sparc/linux-aout.h: Fix comment formatting.
|
||||
|
||||
@ -2554,6 +2554,8 @@ mips-*-*) # Default MIPS RISC-OS 4.0.
|
||||
use_collect2=yes
|
||||
fi
|
||||
;;
|
||||
mmix-knuth-mmixware)
|
||||
;;
|
||||
mn10200-*-*)
|
||||
float_format=i32
|
||||
tm_file="elfos.h svr4.h ${tm_file}"
|
||||
|
||||
111
gcc/config/mmix/crti.asm
Normal file
111
gcc/config/mmix/crti.asm
Normal file
@ -0,0 +1,111 @@
|
||||
/* Copyright (C) 2001 Free Software Foundation, Inc.
|
||||
Contributed by Hans-Peter Nilsson <hp@bitrange.com>
|
||||
|
||||
This file is free software; you can redistribute it and/or modify it
|
||||
under the terms of the GNU General Public License as published by the
|
||||
Free Software Foundation; either version 2, or (at your option) any
|
||||
later version.
|
||||
|
||||
In addition to the permissions in the GNU General Public License, the
|
||||
Free Software Foundation gives you unlimited permission to link the
|
||||
compiled version of this file into combinations with other programs,
|
||||
and to distribute those combinations without any restriction coming
|
||||
from the use of this file. (The General Public License restrictions
|
||||
do apply in other respects; for example, they cover modification of
|
||||
the file, and distribution when not linked into a combine
|
||||
executable.)
|
||||
|
||||
This file is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; see the file COPYING. If not, write to
|
||||
the Free Software Foundation, 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
% This is crt0 for mmix-knuth-mmixware, for setting up things for
|
||||
% compiler-generated assembler and for setting up things between where the
|
||||
% simulator calls and main, and shutting things down on the way back.
|
||||
|
||||
% This file and the GCC output are supposed to be *reasonably*
|
||||
% mmixal-compatible to enable people to re-use output with Knuth's mmixal.
|
||||
% However, forward references are used more freely: we are using the
|
||||
% binutils tools. Users of mmixal beware; you will sometimes have to
|
||||
% re-order things or use temporary variables.
|
||||
|
||||
% Users of mmixal will want to set up 8H and 9H to be .text and .data
|
||||
% respectively, so the compiler can switch between them pretending they're
|
||||
% segments.
|
||||
|
||||
% This little treasure is here so the 32 lowest address bits of user data
|
||||
% will not be zero. Because of truncation, that would cause test-case
|
||||
% gcc.c-torture/execute/980701-1.c to incorrectly fail.
|
||||
.data ! mmixal:= 8H LOC Data_Segment
|
||||
.p2align 3
|
||||
LOC @+(8-@)@7
|
||||
OCTA 2009
|
||||
|
||||
.text ! mmixal:= 9H LOC 8B; LOC #100
|
||||
.global Main
|
||||
|
||||
% The __Stack_start symbol is provided by the link script.
|
||||
stackpp OCTA __Stack_start
|
||||
|
||||
% "Main" is the magic symbol the simulator jumps to. We want to go
|
||||
% on to "main".
|
||||
% We need to set rG explicitly to avoid hard-to-debug situations.
|
||||
Main SETL $255,32
|
||||
PUT rG,$255
|
||||
|
||||
% Initialize the stack pointer. It is supposedly made a global
|
||||
% zero-initialized (allowed to change) register in crtn.asm; we use the
|
||||
% explicit number.
|
||||
GETA $255,stackpp
|
||||
LDOU $254,$255,0
|
||||
|
||||
% Make sure we get more than one mem, to simplify counting cycles.
|
||||
LDBU $255,$1,0
|
||||
LDBU $255,$1,1
|
||||
|
||||
PUSHJ $2,_init
|
||||
|
||||
#ifdef __MMIX_ABI_GNU__
|
||||
% Copy argc and argv from their initial position to argument registers
|
||||
% where necessary.
|
||||
SET $232,$0
|
||||
SET $233,$1
|
||||
#else
|
||||
% For the mmixware ABI, we need to move arguments. The return value will
|
||||
% appear in $0.
|
||||
SET $2,$1
|
||||
SET $1,$0
|
||||
#endif
|
||||
|
||||
PUSHJ $0,main
|
||||
JMP exit
|
||||
|
||||
% Provide first part of _init and _fini. Save the return address on the
|
||||
% register stack. We eventually ignore the return address of these
|
||||
% PUSHJ:s, so it doesn't matter that whether .init and .fini code calls
|
||||
% functions or where they store rJ. We shouldn't get there, so abort if
|
||||
% that happens
|
||||
|
||||
.section .init,"ax",@progbits
|
||||
.global _init
|
||||
_init:
|
||||
GET $0,:rJ
|
||||
PUSHJ $1,0F
|
||||
SETL $255,255
|
||||
TRAP 0,0,0
|
||||
0H IS @
|
||||
|
||||
.section .fini,"ax",@progbits
|
||||
.global _fini
|
||||
_fini:
|
||||
GET $0,:rJ
|
||||
PUSHJ $1,0F
|
||||
SETL $255,255
|
||||
TRAP 0,0,0
|
||||
0H IS @
|
||||
91
gcc/config/mmix/crtn.asm
Normal file
91
gcc/config/mmix/crtn.asm
Normal file
@ -0,0 +1,91 @@
|
||||
/* Copyright (C) 2001 Free Software Foundation, Inc.
|
||||
Contributed by Hans-Peter Nilsson <hp@bitrange.com>
|
||||
|
||||
This file is free software; you can redistribute it and/or modify it
|
||||
under the terms of the GNU General Public License as published by the
|
||||
Free Software Foundation; either version 2, or (at your option) any
|
||||
later version.
|
||||
|
||||
In addition to the permissions in the GNU General Public License, the
|
||||
Free Software Foundation gives you unlimited permission to link the
|
||||
compiled version of this file into combinations with other programs,
|
||||
and to distribute those combinations without any restriction coming
|
||||
from the use of this file. (The General Public License restrictions
|
||||
do apply in other respects; for example, they cover modification of
|
||||
the file, and distribution when not linked into a combine
|
||||
executable.)
|
||||
|
||||
This file is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; see the file COPYING. If not, write to
|
||||
the Free Software Foundation, 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
% This must be the last file on the link-line, allocating global registers
|
||||
% from the top.
|
||||
|
||||
% Register $254 is the stack-pointer.
|
||||
sp GREG
|
||||
|
||||
% Register $253 is frame-pointer. It's not supposed to be used in most
|
||||
% functions.
|
||||
fp GREG
|
||||
|
||||
% $252 is the static chain register; nested functions receive the
|
||||
% context of the surrounding function through a pointer passed in this
|
||||
% register.
|
||||
static_chain GREG
|
||||
struct_value_reg GREG
|
||||
|
||||
% These registers are used to pass state at an exceptional return (C++).
|
||||
eh_state_3 GREG
|
||||
eh_state_2 GREG
|
||||
eh_state_1 GREG
|
||||
eh_state_0 GREG
|
||||
|
||||
#ifdef __MMIX_ABI_GNU__
|
||||
|
||||
% Allocate global registers used by the GNU ABI.
|
||||
gnu_parm_reg_16 GREG
|
||||
gnu_parm_reg_15 GREG
|
||||
gnu_parm_reg_14 GREG
|
||||
gnu_parm_reg_13 GREG
|
||||
gnu_parm_reg_12 GREG
|
||||
gnu_parm_reg_11 GREG
|
||||
gnu_parm_reg_10 GREG
|
||||
gnu_parm_reg_9 GREG
|
||||
gnu_parm_reg_8 GREG
|
||||
gnu_parm_reg_7 GREG
|
||||
gnu_parm_reg_6 GREG
|
||||
gnu_parm_reg_5 GREG
|
||||
gnu_parm_reg_4 GREG
|
||||
gnu_parm_reg_3 GREG
|
||||
gnu_parm_reg_2 GREG
|
||||
gnu_parm_reg_1 GREG
|
||||
|
||||
#endif /* __MMIX_ABI_GNU__ */
|
||||
|
||||
% Provide last part of _init and _fini.
|
||||
|
||||
% The return address is stored in the topmost stored register in the
|
||||
% register-stack. We ignore the current value in rJ. It is probably
|
||||
% garbage because each fragment of _init and _fini may have their own idea
|
||||
% of the current stack frame, if they're cut out from a "real" function
|
||||
% like in gcc/crtstuff.c.
|
||||
|
||||
.section .init,"ax",@progbits
|
||||
GETA $255,0F
|
||||
PUT rJ,$255
|
||||
POP 0,0
|
||||
0H PUT rJ,$0
|
||||
POP 0,0
|
||||
|
||||
.section .fini,"ax",@progbits
|
||||
GETA $255,0F
|
||||
PUT rJ,$255
|
||||
0H PUT rJ,$0
|
||||
POP 0,0
|
||||
149
gcc/config/mmix/mmix-protos.h
Normal file
149
gcc/config/mmix/mmix-protos.h
Normal file
@ -0,0 +1,149 @@
|
||||
/* Prototypes for exported functions defined in mmix.c
|
||||
Copyright (C) 2000, 2001 Free Software Foundation, Inc.
|
||||
Contributed by Hans-Peter Nilsson (hp@bitrange.com)
|
||||
|
||||
This file is part of GNU CC.
|
||||
|
||||
GNU CC is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2, or (at your option)
|
||||
any later version.
|
||||
|
||||
GNU CC is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU CC; see the file COPYING. If not, write to
|
||||
the Free Software Foundation, 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
extern void mmix_override_options PARAMS ((void));
|
||||
extern void mmix_init_expanders PARAMS ((void));
|
||||
extern int mmix_eh_return_data_regno PARAMS ((int));
|
||||
extern int mmix_initial_elimination_offset PARAMS ((int, int));
|
||||
extern int mmix_starting_frame_offset PARAMS ((void));
|
||||
extern int mmix_function_arg_regno_p PARAMS ((int, int));
|
||||
extern void mmix_function_profiler PARAMS ((FILE *, int));
|
||||
extern void mmix_function_block_profiler PARAMS ((FILE *, int));
|
||||
extern void mmix_block_profiler PARAMS ((FILE *, int));
|
||||
extern void mmix_function_block_profiler_exit PARAMS ((FILE *));
|
||||
extern void mmix_trampoline_template PARAMS ((FILE *));
|
||||
extern int mmix_trampoline_size;
|
||||
extern int mmix_reversible_cc_mode PARAMS ((enum machine_mode));
|
||||
extern int mmix_register_move_cost
|
||||
PARAMS ((enum machine_mode, enum reg_class, enum reg_class));
|
||||
extern const char *mmix_text_section_asm_op PARAMS ((void));
|
||||
extern const char *mmix_data_section_asm_op PARAMS ((void));
|
||||
extern const char *mmix_strip_name_encoding PARAMS ((const char *));
|
||||
extern void mmix_asm_file_start PARAMS ((FILE *));
|
||||
extern void mmix_asm_file_end PARAMS ((FILE *));
|
||||
extern void mmix_asm_identify_gcc PARAMS ((FILE *));
|
||||
extern void mmix_asm_output_source_filename PARAMS ((FILE *, const char *));
|
||||
extern void mmix_output_quoted_string PARAMS ((FILE *, const char *, int));
|
||||
extern void mmix_asm_output_source_line PARAMS ((FILE *, int));
|
||||
extern void mmix_asm_output_ascii PARAMS ((FILE *, const char *, int));
|
||||
extern void mmix_asm_output_label PARAMS ((FILE *, const char *));
|
||||
extern void mmix_asm_globalize_label PARAMS ((FILE *, const char *));
|
||||
extern void mmix_asm_weaken_label PARAMS ((FILE *, const char *));
|
||||
extern void mmix_asm_output_labelref PARAMS ((FILE *, const char *));
|
||||
extern void mmix_asm_output_internal_label
|
||||
PARAMS ((FILE *, const char *, int));
|
||||
extern void mmix_asm_output_def PARAMS ((FILE *, const char *, const char *));
|
||||
extern void mmix_asm_output_define_label_difference_symbol
|
||||
PARAMS ((FILE *, const char *, const char *, const char *));
|
||||
extern int mmix_print_operand_punct_valid_p PARAMS ((int));
|
||||
extern void mmix_asm_output_reg_push PARAMS ((FILE *, int));
|
||||
extern void mmix_asm_output_reg_pop PARAMS ((FILE *, int));
|
||||
extern void mmix_asm_output_skip PARAMS ((FILE *, int));
|
||||
extern void mmix_asm_output_align PARAMS ((FILE *, int));
|
||||
extern int mmix_shiftable_wyde_value PARAMS ((unsigned HOST_WIDEST_INT));
|
||||
extern void mmix_output_register_setting
|
||||
PARAMS ((FILE *, int, HOST_WIDEST_INT, int));
|
||||
extern void mmix_conditional_register_usage PARAMS ((void));
|
||||
extern int mmix_dbx_register_number PARAMS ((int));
|
||||
|
||||
/* Things that need rtl.h, tree.h or real.h included, or in combination. */
|
||||
|
||||
/* Need tree.h */
|
||||
#ifdef TREE_CODE
|
||||
|
||||
extern void mmix_make_decl_one_only PARAMS ((tree));
|
||||
extern int mmix_function_arg_pass_by_reference
|
||||
PARAMS ((const CUMULATIVE_ARGS *, enum machine_mode, tree, int));
|
||||
extern rtx mmix_function_outgoing_value PARAMS ((tree, tree));
|
||||
extern int mmix_data_alignment PARAMS ((tree, int));
|
||||
extern int mmix_constant_alignment PARAMS ((tree, int));
|
||||
extern int mmix_local_alignment PARAMS ((tree, int));
|
||||
extern void mmix_setup_incoming_varargs
|
||||
PARAMS ((CUMULATIVE_ARGS *, enum machine_mode, tree, int *, int));
|
||||
extern void mmix_select_section PARAMS ((tree, int, int));
|
||||
extern void mmix_encode_section_info PARAMS ((tree));
|
||||
extern void mmix_unique_section PARAMS ((tree, int));
|
||||
extern void mmix_asm_output_pool_prologue
|
||||
PARAMS ((FILE *, const char *, tree, int));
|
||||
extern void mmix_asm_output_aligned_common
|
||||
PARAMS ((FILE *, const char *, int, int));
|
||||
extern void mmix_asm_output_aligned_local
|
||||
PARAMS ((FILE *, const char *, int, int));
|
||||
extern void mmix_asm_declare_register_global
|
||||
PARAMS ((FILE *, tree, int, const char *));
|
||||
extern void mmix_asm_output_mi_thunk PARAMS ((FILE *, tree, int, tree));
|
||||
|
||||
/* Need tree.h and rtl.h */
|
||||
# ifdef RTX_CODE
|
||||
extern rtx mmix_function_arg
|
||||
PARAMS ((const CUMULATIVE_ARGS *, enum machine_mode, tree, int, int));
|
||||
extern rtx mmix_expand_builtin_va_arg PARAMS ((tree, tree));
|
||||
# endif /* RTX_CODE */
|
||||
#endif /* TREE_CODE */
|
||||
|
||||
/* Need rtl.h */
|
||||
#ifdef RTX_CODE
|
||||
extern void mmix_asm_output_addr_diff_elt PARAMS ((FILE *, rtx, int, int));
|
||||
extern void mmix_asm_output_addr_vec_elt PARAMS ((FILE *, int));
|
||||
extern enum reg_class mmix_preferred_reload_class
|
||||
PARAMS ((rtx, enum reg_class));
|
||||
extern enum reg_class mmix_preferred_output_reload_class
|
||||
PARAMS ((rtx, enum reg_class));
|
||||
extern enum reg_class mmix_secondary_reload_class
|
||||
PARAMS ((enum reg_class, enum machine_mode, rtx, int));
|
||||
extern int mmix_const_ok_for_letter_p PARAMS ((HOST_WIDE_INT, int));
|
||||
extern int mmix_const_double_ok_for_letter_p PARAMS ((rtx, int));
|
||||
extern int mmix_extra_constraint PARAMS ((rtx, int));
|
||||
extern rtx mmix_dynamic_chain_address PARAMS ((rtx));
|
||||
extern rtx mmix_return_addr_rtx PARAMS ((int, rtx));
|
||||
extern rtx mmix_eh_return_stackadj_rtx PARAMS ((void));
|
||||
extern rtx mmix_eh_return_handler_rtx PARAMS ((void));
|
||||
extern void mmix_initialize_trampoline PARAMS ((rtx, rtx, rtx));
|
||||
extern int mmix_constant_address_p PARAMS ((rtx));
|
||||
extern int mmix_legitimate_address PARAMS ((enum machine_mode, rtx, int));
|
||||
extern int mmix_legitimate_constant_p PARAMS ((rtx));
|
||||
extern enum machine_mode mmix_select_cc_mode PARAMS ((RTX_CODE, rtx, rtx));
|
||||
extern void mmix_canonicalize_comparison PARAMS ((RTX_CODE *, rtx *, rtx *));
|
||||
extern int mmix_rtx_cost_recalculated
|
||||
PARAMS ((rtx, RTX_CODE, RTX_CODE, int *));
|
||||
extern int mmix_address_cost PARAMS ((rtx));
|
||||
extern void mmix_asm_output_double_int PARAMS ((FILE *, rtx, int));
|
||||
extern void mmix_print_operand PARAMS ((FILE *, rtx, int));
|
||||
extern void mmix_print_operand_address PARAMS ((FILE *, rtx));
|
||||
extern int mmix_valid_comparison PARAMS ((RTX_CODE, enum machine_mode, rtx));
|
||||
extern rtx mmix_gen_compare_reg PARAMS ((enum rtx_code, rtx, rtx));
|
||||
#endif /* RTX_CODE */
|
||||
|
||||
extern int mmix_asm_preferred_eh_data_format PARAMS ((int, int));
|
||||
extern void mmix_setup_frame_addresses PARAMS ((void));
|
||||
|
||||
/* Need real.h */
|
||||
#ifdef GCC_REAL_H
|
||||
extern void mmix_asm_output_double PARAMS ((FILE *, REAL_VALUE_TYPE *));
|
||||
extern void mmix_asm_output_float PARAMS ((FILE *, REAL_VALUE_TYPE *));
|
||||
#endif /* GCC_REAL_H */
|
||||
|
||||
/*
|
||||
* Local variables:
|
||||
* eval: (c-set-style "gnu")
|
||||
* indent-tabs-mode: t
|
||||
* End:
|
||||
*/
|
||||
3160
gcc/config/mmix/mmix.c
Normal file
3160
gcc/config/mmix/mmix.c
Normal file
File diff suppressed because it is too large
Load Diff
1292
gcc/config/mmix/mmix.h
Normal file
1292
gcc/config/mmix/mmix.h
Normal file
File diff suppressed because it is too large
Load Diff
1187
gcc/config/mmix/mmix.md
Normal file
1187
gcc/config/mmix/mmix.md
Normal file
File diff suppressed because it is too large
Load Diff
20
gcc/config/mmix/t-mmix
Normal file
20
gcc/config/mmix/t-mmix
Normal file
@ -0,0 +1,20 @@
|
||||
# See "Target Fragment" in GCC info. That same order is used here.
|
||||
LIBGCC1 =
|
||||
|
||||
# libgcc1-test doesn't work. There's critical stuff in crti and crtn and
|
||||
# we know the result of running libgcc1-test anyway.
|
||||
LIBGCC1_TEST =
|
||||
CROSS_LIBGCC1 =
|
||||
|
||||
TARGET_LIBGCC2_CFLAGS = -mlibfuncs -Dinhibit_libc -O2
|
||||
|
||||
EXTRA_MULTILIB_PARTS = crti.o crtn.o crtbegin.o crtend.o
|
||||
|
||||
MULTILIB_OPTIONS = mabi=gnu
|
||||
MULTILIB_DIRNAMES = gnuabi
|
||||
|
||||
$(T)crti.o: $(srcdir)/config/mmix/crti.asm $(GCC_PASSES)
|
||||
$(GCC_FOR_TARGET) -c -o crti.o -x assembler-with-cpp $(srcdir)/config/mmix/crti.asm
|
||||
|
||||
$(T)crtn.o: $(srcdir)/config/mmix/crtn.asm $(GCC_PASSES)
|
||||
$(GCC_FOR_TARGET) -c -o crtn.o -x assembler-with-cpp $(srcdir)/config/mmix/crtn.asm
|
||||
@ -384,8 +384,8 @@ NeXT, Inc.@: donated the front end that supports the Objective-C
|
||||
language.
|
||||
|
||||
@item
|
||||
Hans-Peter Nilsson for the CRIS port, improvements to the search engine
|
||||
setup, various documentation fixes and other small fixes.
|
||||
Hans-Peter Nilsson for the CRIS and MMIX ports, improvements to the search
|
||||
engine setup, various documentation fixes and other small fixes.
|
||||
|
||||
@item
|
||||
Geoff Noer for this work on getting cygwin native builds working.
|
||||
|
||||
@ -574,6 +574,12 @@ in the following sections.
|
||||
-mno-callgraph-data -mslow-bytes -mno-slow-bytes -mno-lsim @gol
|
||||
-mlittle-endian -mbig-endian -m210 -m340 -mstack-increment}
|
||||
|
||||
@emph{MMIX Options}
|
||||
@gccoptlist{
|
||||
-mlibfuncs -mno-libfuncs -mepsilon -mno-epsilon -mabi=gnu @gol
|
||||
-mabi=mmixware -mzero-extend -mknuthdiv -mtoplevel-symbols @gol
|
||||
-melf}
|
||||
|
||||
@emph{IA-64 Options}
|
||||
@gccoptlist{
|
||||
-mbig-endian -mlittle-endian -mgnu-as -mgnu-ld -mno-pic @gol
|
||||
@ -5116,6 +5122,7 @@ that macro, which enables you to change the defaults.
|
||||
* D30V Options::
|
||||
* S/390 and zSeries Options::
|
||||
* CRIS Options::
|
||||
* MMIX Options::
|
||||
@end menu
|
||||
|
||||
@node M680x0 Options
|
||||
@ -9633,6 +9640,52 @@ Like @option{-sim}, but pass linker options to locate initialized data at
|
||||
0x40000000 and zero-initialized data at 0x80000000.
|
||||
@end table
|
||||
|
||||
@node MMIX Options
|
||||
@subsection MMIX Options
|
||||
@cindex MMIX Options
|
||||
|
||||
These options are defined for the MMIX:
|
||||
|
||||
@table @code
|
||||
@item -mlibfuncs
|
||||
@itemx -mno-libfuncs
|
||||
Specify that intrinsic library functions are being compiled, passing all
|
||||
values in registers, no matter the size.
|
||||
|
||||
@item -mepsilon
|
||||
@itemx -mno-epsilon
|
||||
Generate floating-point comparison instructions that compare with respect
|
||||
to the @code{rE} epsilon register.
|
||||
|
||||
@item -mabi=mmixware
|
||||
@itemx -mabi=gnu
|
||||
Generate code that passes function parameters and return values that (in
|
||||
the called function) are seen as registers @code{$0} and up, as opposed to
|
||||
the GNU ABI which uses global registers @code{$231} and up.
|
||||
|
||||
@item -mzero-extend
|
||||
@item -mno-zero-extend
|
||||
When reading data from memory in sizes shorter than 64 bits, use (do not
|
||||
use) zero-extending load instructions by default, rather than
|
||||
sign-extending ones.
|
||||
|
||||
@item -mknuthdiv
|
||||
@itemx -mno-knuthdiv
|
||||
Make the result of a division yielding a remainder have the same sign as
|
||||
the divisor. With the default, @option{-mno-knuthdiv}, the sign of the
|
||||
result follows the sign of the dividend. Both methods are arithmetically
|
||||
valid, the latter being almost exclusively used.
|
||||
|
||||
@item -mtoplevel-symbols
|
||||
@itemx -mno-toplevel-symbols
|
||||
Prepend (do not prepend) a @code{:} to all global symbols, so the assembly
|
||||
code can be used with the @code{PREFIX} assembly directive.
|
||||
|
||||
@item -melf
|
||||
Generate an executable in the @samp{ELF} format, rather than the default
|
||||
@samp{mmo} format used by the @command{mmix} simulator.
|
||||
@end table
|
||||
|
||||
|
||||
@node Code Gen Options
|
||||
@section Options for Code Generation Conventions
|
||||
|
||||
Loading…
Reference in New Issue
Block a user