espressif/binutils-gdb
1
0
Fork 0
mirror of https://github.com/espressif/binutils-gdb.git synced 2025-06-20 09:58:19 +08:00
Code Issues Packages Projects Releases Wiki Activity

New files.

Browse Source
This commit is contained in:
Steve Chamberlain
1995-01-16 00:53:05 +00:00
parent 506f4ede9c
commit 321a78a5a0
7 changed files with 1948 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

253
sim/w65/Makefile.in Executable file
View File

@ -0,0 +1,253 @@
# Makefile for GNU binary-file utilities
# Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
# This file is part of GNU binutils.
# This program 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 of the License, or
# (at your option) any later version.
#
# This program 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; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
srcdir = .
prefix = /usr/local
program_transform_name =
exec_prefix = $(prefix)
bindir = $(exec_prefix)/bin
libdir = $(exec_prefix)/lib
tooldir = $(exec_prefix)/$(target_alias)
datadir = $(prefix)/lib
mandir = $(prefix)/man
man1dir = $(mandir)/man1
man2dir = $(mandir)/man2
man3dir = $(mandir)/man3
man4dir = $(mandir)/man4
man5dir = $(mandir)/man5
man6dir = $(mandir)/man6
man7dir = $(mandir)/man7
man8dir = $(mandir)/man8
man9dir = $(mandir)/man9
infodir = $(prefix)/info
includedir = $(prefix)/include
docdir = $(datadir)/doc
SHELL = /bin/sh
INSTALL = `cd $(srcdir)/..;pwd`/install.sh -c
INSTALL_PROGRAM = $(INSTALL)
INSTALL_DATA = $(INSTALL)
INSTALL_XFORM = $(INSTALL) -t='$(program_transform_name)'
INSTALL_XFORM1 = $(INSTALL_XFORM) -b=.1
AR = ar
AR_FLAGS = qv
CFLAGS = -g
MAKEINFO = makeinfo
TEXI2DVI = texi2dvi
RANLIB = ranlib
BISONFLAGS = -d
TEXI2ROFF=texi2roff
MAKEOVERRIDES=
CC_FOR_BUILD = $(CC)
NM_FOR_TARGET = nm
NM = $(NM_FOR_TARGET)
SYMLINK = ln -s
# Comment these out if using lex.
# Distribution version
# Distribution name
# Where to find texinfo.tex to format docn with TeX
TEXIDIR = $(srcdir)/../texinfo
#CC=gcc -Wall
CC=cc
# These should all be the same program too.
RUN_PROG=run
SIM_LIB=libsim.a
ADDL_LIBS=
PROGS = $(RUN_PROG)
LIBS= $(SIM_LIB)
DISTSTUFF = $(PROGS) $(LIBS)
BASEDIR = $(srcdir)/../..
BFDDIR = $(BASEDIR)/bfd
INCDIR = $(BASEDIR)/include
GDBDIR = $(BASEDIR)/gdb
INCLUDES = -I. -I$(srcdir) -I../../bfd -I$(BFDDIR) -I$(INCDIR) -I$(GDBDIR)
#### host and target dependant Makefile fragments come in here.
###
ALL_CFLAGS = $(INCLUDES) $(HDEFINES) $(TDEFINES) $(CFLAGS)
.c.o:
$(CC) -c $(ALL_CFLAGS) $<
#
## Random definitions
# Hopefully all these may be flushed once we get configuration down pat.
# alloca only needed for systems which don't have it and when cc != gcc.
# ALLOCA = alloca.o
# nm tries to malloc enough space for the string table. The old GNU malloc
# rounds this up to a power of two (e.g. 5M becomes 8M), and so it might
# fail unnecessarily. I've also seen some Unix malloc's fail, even when
# there is enough memory. So use the new GNU malloc.
# MALLOC = gmalloc.o
# Use this if the system malloc is good enough.
MALLOC =
# Use the GNU getopt unless you have problems with it.
# The IRIS version could probably benefit from being assembled with
# libmalloc rather than the ordinary malloc.
LIBIBERTY = ../../libiberty/libiberty.a
BFD = ../../bfd/libbfd.a
OPCODES = ../../opcodes/libopcodes.a
RUNTEST = runtest
RUNTESTFLAGS =
FLAGS_TO_PASS = \
"CC=$(CC)" \
"CFLAGS=$(CFLAGS)" \
"RUNTEST=$(RUNTEST)" \
"RUNTESTFLAGS=$(RUNTESTFLAGS)"
#
## The rules
all: $(LIBS) $(PROGS)
$(RUN_PROG): $(LIBS) run.o $(BFD)
$(CC) $(CFLAGS) $(LDFLAGS) -o $(RUN_PROG) run.o $(SIM_LIB) $(BFD) $(LIBIBERTY)
$(SIM_LIB): case.o interp.o
rm -f $(SIM_LIB)
$(AR) $(AR_FLAGS) $(SIM_LIB) case.o interp.o
$(RANLIB) $(SIM_LIB)
case.c: gencode
./gencode -c >case.c ; \
if [ -x /usr/latest/bin/indent ] ; then \
/usr/latest/bin/indent case.c ; \
fi
optable:gencode
./gencode >optable
./gencode -a >$(srcdir)/../../opcodes/w65-opc.h
gencode:gencode.c
$(CC) -o gencode $<
case.o:case.c
run.o:run.c
interp.o:interp.c
######################################################################
mostlyclean:
-rm -f *.o *~ \#* core binutils.?? binutils.??? case.c
clean: mostlyclean
-rm -f $(PROGS) *.o *.a
distclean:
-rm -f Makefile config.status sysdep.h *.o *~ \#* core y.* \
binutils.?? binutils.??s binutils.aux binutils.log binutils.toc gencode run
-rm -f $(PROGS) underscore.c
realclean: clean distclean
-rm -f $(DISTSTUFF) TAGS
etags tags: TAGS
TAGS: force
etags $(INCDIR)/*.h $(srcdir)/*.[hc]
install: all
for i in $(PROGS) ; do \
$(INSTALL_XFORM) $$i $(bindir)/`echo $$i | sed -e 's/.new//'` ; \
done
install-info:
clean-info:
-rm -rf *.info*
# Making a dist:
# cvs rtag binutils-x-yy ld+utils
# cvs co -r binutils-x-yy ld+utils
# Sanitize
# cd {HERE}; make dist [-f Makefile.in]
dist: $(DIST_NAME).tar.z
diststuff: $(DISTSTUFF)
$(DIST_NAME).tar.z:
cd ../..; rm -f $(DIST_NAME); ln -s devo $(DIST_NAME)
make diststuff -f Makefile.in
cd ../ld; make diststuff -f Makefile.in
cd ../gprof; make diststuff -f Makefile.in
cd ../texinfo; mv texinfo.tex ..; rm -rf *; mv ../texinfo.tex .
# Take out texinfo from configurable dirs
mv ../configure.in tmp; \
sed -e '/^host_tools=/s/texinfo //' <tmp >../configure.in; rm tmp
cd ..; chmod og=u `find . -print`
cd ../..; tar chf - $(DIST_NAME) | gzip >$(DIST_NAME).tar.z
rm -rf ../../$(DIST_NAME)
# Dummy target to force execution of dependent targets.
#
force:
# Target to uncomment host-specific lines in this makefile. Such lines must
# have the following string beginning in column 1: #__<hostname>__#
# Original Makefile is backed up as 'Makefile.old'.
#
# Invoke with: make make HOST=xxx
#
make:
-@if test $(HOST)x = x ; then \
echo 'Specify "make make HOST=???"'; \
exit 1; \
fi ; \
grep -s "^#The next line was generated by 'make make'" Makefile; \
if test $$? = 0 ; then \
echo "Makefile has already been processed with 'make make'";\
exit 1; \
fi ; \
mv -f Makefile Makefile.old; \
echo "#The next line was generated by 'make make'" >Makefile ; \
echo "HOST=$(HOST)" >>Makefile ; \
echo >>Makefile ; \
sed "s/^#__$(HOST)__#//" < Makefile.old >>Makefile
Makefile: $(srcdir)/Makefile.in $(host_makefile_frag) $(target_makefile_frag)
$(SHELL) ./config.status
### Local Variables: ***
### mode:fundamental ***
### page-delimiter: "^# " ***
### End: ***
### end of file

33
sim/w65/configure.in Executable file
View File

@ -0,0 +1,33 @@
# This file is a shell script that supplies the information necessary
# to tailor a template configure script into the configure script
# appropriate for this directory. For more information, check any
# existing configure script.
srctrigger=gencode.c
srcname="w65sim"
# per-host:
. ${srcdir}/../../bfd/configure.host
# Set up to make a link between the host's include file and "sysdep.h".
files="../../bfd/hosts/${my_host}.h"
links="sysdep.h"
if [ ! -f ${srcdir}/${files} ] ; then
if [ -n "${my_host}" ] ; then
echo '***' No file ${srcdir}/${files} 1>&2
fi
echo '***' ${srcname} does not support host ${host} 1>&2
exit 1
fi
host_makefile_frag=
if [ -f ${srcdir}/../../bfd/config/${my_host}.mh ] ; then
host_makefile_frag=../../bfd/config/${my_host}.mh
fi
# per-target:

991
sim/w65/gencode.c Normal file
View File

@ -0,0 +1,991 @@
/* Program to write out opcode tables for the W65816 and friends
Copyright (C) 1995 Free Software Foundation, Inc.
Written by Steve Chamberlain sac@cygnus.com
GDB 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.
GDB 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 GDB; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <stdio.h>
struct opinfo
{
int code;
char *opcode;
char *mode;
int clocks;
int cpu;
struct ainfo *ai;
struct oinfo *oi;
};
#define W16_ONLY 1
#define C02_ONLY 2
struct ainfo
{
char *name;
char *enumname;
char *disasmstring;
char *sizer;
char *reloc0;
char *howlval;
/* If addr val could be reg addr - used for disasssmbly of
args into reg names - you want lda <0x10 to turn into lda <r0
but you don't want lda #0x10 to do the same. */
char regflag;
};
#define GET_M 1
#define SPECIAL_CASE 2
#define COP_GET 3
#define G2_GET 4
#define BRANCH 5
#define GET_X 6
#define STANDARD_PC_GET 7
#define PUSH_16 8
#define PUSH_8 9
#define PUSH_X 10
#define PUSH_M 11
#define POP_16 12
#define POP_8 13
#define POP_X 14
#define POP_M 15
#define STORE_M 16
#define STORE_X 17
struct oinfo
{
char *name;
int howsrc;
char *howto;
};
struct oinfo olist[] =
{
{"adc", GET_M, "{ int old_acc = GET_A; int old_src =src; src = old_src + old_acc + GET_CBIT; SET_NBIT_M(src); SET_VBIT_M(old_src, old_acc, src); SET_CBIT_M(src); SET_ZBIT_M(src); SET_A(src);}"},
{"and", GET_M, "src = GET_A & src; SET_NBIT_M(src); SET_ZBIT_M(src);SET_A(src);"},
{"asl", G2_GET, " src <<=1; SET_CBIT_M(src); SET_ZBIT_M(src);SET_NBIT_M(src);"},
{"bcc", BRANCH, "GET_CBIT==0"},
{"bcs", BRANCH, "GET_CBIT==1"},
{"beq", BRANCH, "GET_ZBIT==1"},
{"bit", GET_M, "SET_NBIT_M(src); SET_VBIT((src >> (GET_MBIT ? 6:14 ) &1)); SET_ZBIT_M (GET_A & src);"},
{"bmi", BRANCH, "GET_NBIT==1"},
{"bne", BRANCH, "GET_ZBIT==0"},
{"bpl", BRANCH, "GET_NBIT==0"},
{"bra", BRANCH, "1"},
{"brk", SPECIAL_CASE,
"\
{\
if (GET_E == 1) \
{ PUSH16(GET_PC + 1); PUSH8 (GET_P | BFLAG); SET_P (GET_P | IFLAG); SET_ONLY_PC(fetch16 (0xfffe));}\
else \
{ PUSH8 (GET_PBR_LOW); PUSH16 (GET_PC); PUSH8(GET_P); SET_P(GET_P |IFLAG); SET_PBRPC(fetch16 (0xffe6));};\
}"},
{"brl", BRANCH, "1"},
{"bvc", BRANCH, "GET_VBIT==0"},
{"bvs", BRANCH, "GET_VBIT==1"},
{"clc", SPECIAL_CASE, "SET_CBIT(0);"},
{"cld", SPECIAL_CASE, "SET_DBIT(0);"},
{"cli", SPECIAL_CASE, "SET_IBIT(0);"},
{"clv", SPECIAL_CASE, "SET_VBIT(0);"},
{"cmp", GET_M, "src = GET_A - src; SET_ZBIT_M(src); SET_CBIT_M(~src); SET_NBIT_M(src);"},
{"cop", COP_GET,
"\
{\
if (GET_E == 1) \
{ PUSH16(GET_PC + 1); PUSH8 (GET_P | BFLAG); SET_P ((GET_P | IFLAG) & ~DFLAG); SET_ONLY_PC(fetch16 (0xfff4));}\
else \
{ PUSH8 (GET_PBR_LOW); PUSH16 (GET_PC); PUSH8(GET_P); SET_P((GET_P |IFLAG) & ~DFLAG); SET_PBRPC(fetch16 (0xffe4));};\
}"},
{"cpx", GET_X, "src = GET_X - src; SET_NBIT_X(src); SET_ZBIT_X(src); SET_CBIT_X(~src);"},
{"cpy", GET_X, "src = GET_Y - src; SET_NBIT_X(src); SET_ZBIT_X(src); SET_CBIT_X(~src);"},
{"dec", G2_GET, "src --; SET_NBIT_M(src); SET_ZBIT_M(src); "},
{"dex", SPECIAL_CASE, "SET_X(GET_X -1); SET_NBIT_X(GET_X); SET_ZBIT_X(GET_X);"},
{"dey", SPECIAL_CASE, "SET_Y(GET_Y -1); SET_NBIT_X(GET_Y); SET_ZBIT_X(GET_Y);"},
{"eor", GET_M, "src = GET_A ^ src; SET_NBIT_M(src); SET_ZBIT_M(src);SET_A(src); "},
{"inc", G2_GET, "src ++; SET_NBIT_M(src); SET_ZBIT_M(src); "},
{"inx", SPECIAL_CASE, "SET_X(GET_X +1); SET_NBIT_X(GET_X); SET_ZBIT_X(GET_X);"},
{"iny", SPECIAL_CASE, "SET_Y(GET_Y +1); SET_NBIT_X(GET_Y); SET_ZBIT_X(GET_Y);"},
{"jmp", STANDARD_PC_GET, "SET_ONLY_PC(lval);"},
{"jsr", STANDARD_PC_GET, "if (l) { PUSH8(GET_PBR_LOW);} PUSH16(GET_PC); SET_ONLY_PC(lval);\n"},
{"lda", GET_M, "SET_A(src); SET_NBIT_M(GET_A); SET_ZBIT_M(GET_A);"},
{"ldx", GET_X, "SET_X(src);SET_NBIT_X(GET_X); SET_ZBIT_X(GET_X);"},
{"ldy", GET_X, "SET_Y(src);SET_NBIT_X(GET_Y); SET_ZBIT_X(GET_Y);"},
{"lsr", G2_GET,
"SET_CBIT(src & 1); \
SET_NBIT(0); \
src = src >> 1; \
SET_ZBIT_M(src);"},
{"mvn", SPECIAL_CASE,
"{ int dst_bank; int src_bank; dst_bank = fetch8 ( GET_PC)<<16; INC_PC(1); src_bank = fetch8 (GET_PC)<<16; INC_PC(1);\
do { store8 ( dst_bank + GET_X, fetch8 (src_bank + GET_Y)); SET_X(GET_X+1); SET_Y(GET_Y+1); SET_A((GET_A-1) & 0xffff); } while (GET_A != 0xffff);}"},
{"mvp", SPECIAL_CASE,
"{ int dst_bank; int src_bank; dst_bank = fetch8 ( GET_PBRPC)<<16; INC_PC(1); src_bank = fetch8 (GET_PBRPC)<<16; INC_PC(1);\
do { store8 ( dst_bank + GET_X, fetch8 (src_bank + GET_Y)); SET_X(GET_X-1); SET_Y(GET_Y-1); SET_A((GET_A-1) & 0xffff); } while (GET_A != 0xffff);}"},
{"nop", SPECIAL_CASE, ""},
{"ora", GET_M, "SET_A(GET_A | src); SET_NBIT_M(GET_A); SET_ZBIT_M(GET_A);"},
{"pea", PUSH_16, "src = fetch16(GET_PBRPC); INC_PC(2);"},
{"pei", PUSH_16, "src = fetch16(fetch8(GET_PBRPC) + GET_D); INC_PC(1);"},
{"per", PUSH_16, "src = fetch16(GET_PBRPC) + GET_PC+2; INC_PC(2);"},
{"pha", PUSH_M, "src = GET_A;"},
{"phb", PUSH_8, "src = GET_DBR_LOW;"},
{"phd", PUSH_16, "src = GET_DPR;"},
{"phk", PUSH_8, "src = GET_PBR_LOW;"},
{"php", PUSH_8, "src = GET_P;"},
{"phx", PUSH_X, "src = GET_X;"},
{"phy", PUSH_X, "src = GET_Y;"},
{"pla", POP_M, "SET_A( src); SET_NBIT_M(GET_A);SET_ZBIT_M(GET_A);"},
{"plb", POP_8, "SET_DBR_LOW(src);SET_NBIT_8(src); SET_ZBIT_8(src);"},
{"pld", POP_16, "SET_DPR(src);SET_NBIT_16(src); SET_ZBIT_16(src);"},
{"plp", POP_8, "SET_P(src); RETHINK;"},
{"plx", POP_X, "SET_X(src);SET_NBIT_X(src);SET_ZBIT_X(src);"},
{"ply", POP_X, "SET_Y(src);SET_NBIT_X(src);SET_ZBIT_X(src);"},
{"rep", COP_GET, "SET_P(GET_P & ~src); RETHINK;"},
{"rol", G2_GET, "src = (src << 1) | GET_CBIT; SET_CBIT((src >> (GET_MBIT ? 7 : 15)) &1); SET_ZBIT_M(src);"},
{"ror", G2_GET, "{ int t = src; src = (src>>1) | (GET_CBIT<<((GET_MBIT ? 8:16)-1));SET_NBIT_M(src);SET_ZBIT_M(src); SET_CBIT(t&1);}"},
{"rti", SPECIAL_CASE, "{ int t; POP16(t); SET_ONLY_PC(t); if (GET_E==0) { POP8(t); SET_PBR(t);} POP8(t);SET_P(t);}"},
{"rtl", SPECIAL_CASE, "{ int t; POP24(t); SET_PBRPC(t);}"},
{"rts", SPECIAL_CASE, "{ int t; POP16(t); SET_ONLY_PC(t);}"},
{"sbc", GET_M,
"{ int old_acc = GET_A & AMASK; int old_src = src & AMASK; src = old_acc - old_src - !GET_CBIT; SET_A(src);\
SET_CBIT(!(src>>(GET_MBIT?8:16) &1)); SET_VBIT_M(old_src,old_acc, src); SET_ZBIT_M(src); SET_NBIT_M(src);}"},
{"sec", SPECIAL_CASE, "SET_CBIT(1);"},
{"sed", SPECIAL_CASE, "SET_DBIT(1);"},
{"sei", SPECIAL_CASE, "SET_IBIT(1);"},
{"sep", COP_GET, "SET_P(GET_P | src);RETHINK;"},
{"sta", STORE_M, "src = GET_A;"},
{"stp", SPECIAL_CASE, "abort();"},
{"stx", STORE_X, "src = GET_X;"},
{"sty", STORE_X, "src = GET_Y;"},
{"stz", STORE_M, "src = 0;"},
{"tax", SPECIAL_CASE, "SET_X(GET_A); SET_NBIT_X(GET_A);SET_ZBIT_X(GET_A);"},
{"tay", SPECIAL_CASE, "SET_Y(GET_A); SET_NBIT_X(GET_A);SET_ZBIT_X(GET_A);"},
{"tcd", SPECIAL_CASE, "SET_DPR(GET_A); SET_NBIT_X(GET_A); SET_ZBIT_X(GET_A);"},
{"tcs", SPECIAL_CASE, "SET_S(GET_A);"},
{"tdc", SPECIAL_CASE, "SET_A(GET_DPR); SET_NBIT_M(GET_A); SET_ZBIT_M(GET_A);"},
{"trb", G2_GET, "SET_ZBIT_M(src & GET_A); src = src & ~GET_A; "},
{"tsb", G2_GET, "SET_ZBIT_M(src & GET_A); src = src | GET_A;"},
{"tsc", SPECIAL_CASE, "SET_A(GET_S); SET_NBIT_16(GET_A); SET_ZBIT_16(GET_A);"},
{"tsx", SPECIAL_CASE, "SET_X(GET_S); SET_NBIT_X(GET_X); SET_ZBIT_X(GET_X);"},
{"txa", SPECIAL_CASE, "SET_A(GET_X); SET_NBIT_M(GET_A); SET_ZBIT_M(GET_A);"},
{"txs", SPECIAL_CASE, "SET_S(GET_X);"},
{"txy", SPECIAL_CASE, "SET_Y(GET_X); SET_NBIT_X(GET_Y); SET_ZBIT_X(GET_Y);"},
{"tya", SPECIAL_CASE, "SET_A(GET_Y); SET_NBIT_M(GET_A); SET_ZBIT_M(GET_A);"},
{"tyx", SPECIAL_CASE, "SET_X(GET_Y); SET_NBIT_X(GET_X); SET_ZBIT_X(GET_X);"},
{"wai", SPECIAL_CASE, "wai();INC_PC(-1);"},
{"wdm", SPECIAL_CASE, "SET_A(wdm(GET_A, GET_X));"},
{"xba", SPECIAL_CASE,
"if (GET_XBIT==0) { SET_A(((GET_A >> 8) & 0xff) | ((GET_A & 0xff)<<8));} else { int t = GET_A; SET_A(GET_B); SET_B(t);}; SET_NBIT_8(GET_A); SET_ZBIT_8(GET_A);"},
{"xce", SPECIAL_CASE, "{ int t = GET_E; SET_E(GET_CBIT); SET_CBIT(GET_E);if (GET_E) { SET_MBIT(1); SET_XBIT(1);}}; goto top;"},
0};
struct ainfo alist[] =
{
{"#a", "IMMTOA", "#$0", "M==0 ? 2:1", "M==0 ? %sR_W65_ABS16 : %sR_W65_ABS8", "lval = GET_PBRPC; INC_PC(GET_MBIT ? 1:2); ", 0},
{"#c", "IMMCOP", "#$0", "1", "%sR_W65_ABS8", "lval = GET_PBRPC; INC_PC(1); ", 0},
{"#i", "IMMTOI", "#$0", "X==0 ? 2:1", "X==0 ? %sR_W65_ABS16 : %sR_W65_ABS8", "lval = GET_PBRPC; INC_PC(GET_XBIT ? 1:2);", 0},
{"A", "ACC", "a", "0", 0, "*FAIL**", 0},
{"r", "PC_REL", "$0", "1", "%sR_W65_PCR8", "lval = GET_PBR_HIGH + (0xffff &(fetch8sext(GET_PBRPC) + GET_PC + 1)); INC_PC(1);", 0},
{"rl", "PC_REL_LONG", "$0", "2", "%sR_W65_PCR16", "lval = GET_PBR_HIGH + (0xffff & (fetch16 (GET_PBRPC) + GET_PC + 2)); INC_PC(2);", 0},
{"i", "IMPLIED", "", "0", "", 0},
{"s", "STACK", "", "0", "", 0},
{"d", "DIR", "<$0", "1", "%sR_W65_ABS8", "lval = fetch8(GET_PBRPC) + GET_D; INC_PC(1);", 1},
{"d,x", "DIR_IDX_X", "<$0,x", "1", "%sR_W65_ABS8", "lval = fetch8(GET_PBRPC) + GET_X+ GET_D; INC_PC(1);", 1},
{"d,y", "DIR_IDX_Y", "<$0,y", "1", "%sR_W65_ABS8", "lval = fetch8(GET_PBRPC) + GET_Y + GET_D; INC_PC(1);", 1},
{"(d)", "DIR_IND", "(<$0)", "1", "%sR_W65_ABS8", "lval = GET_DBR_HIGH + (0xffff & fetch16(fetch8(GET_PBRPC) + GET_D));INC_PC(1);",1},
{"(d,x)", "DIR_IDX_IND_X", "(<$0,x)", "1", "%sR_W65_ABS8", "lval = GET_DBR_HIGH + (0xffff & (fetch8 (GET_PBRPC) + GET_D + GET_X)) ; INC_PC(1);",1},
{"(d),y", "DIR_IND_IDX_Y", "(<$0),y", "1", "%sR_W65_ABS8", "lval = fetch16(fetch8(GET_PBRPC) + GET_D) + GET_Y + GET_DBR_HIGH;INC_PC(1);",1},
{"[d]", "DIR_IND_LONG", "[$0]", "1", "%sR_W65_ABS8", "lval = fetch24(GET_D + fetch8(GET_PBRPC));INC_PC(1);",1},
{"[d],y", "DIR_IND_IDX_Y_LONG", "[$0],y", "1", "%sR_W65_ABS8", "lval = fetch24(fetch8(GET_PBRPC) + GET_D) + GET_Y;INC_PC(1);",1},
{"a", "ABS", "!$0", "2", "%sR_W65_ABS16", "lval = fetch16(GET_PBRPC) + GET_DBR_HIGH; INC_PC(2) ; ",1},
{"a,x", "ABS_IDX_X", "!$0,x", "2", "%sR_W65_ABS16", "lval = fetch16(GET_PBRPC) + GET_DBR_HIGH + GET_X; INC_PC(2); ",1},
{"a,y", "ABS_IDX_Y", "!$0,y", "2", "%sR_W65_ABS16", "lval = fetch16(GET_PBRPC) + GET_DBR_HIGH + GET_Y; INC_PC(2); ", 1},
{"al", "ABS_LONG", ">$0", "3", "%sR_W65_ABS24", "lval = fetch24(GET_PBRPC); INC_PC(3);\nl=1;\n", 1},
{"[a]", "ABS_IND_LONG", "[>$0]", "2", "%sR_W65_ABS16", "lval = fetch24(fetch16(GET_PBRPC)); INC_PC(2);", 1},
{"al,x", "ABS_LONG_IDX_X", ">$0,x", "3", "%sR_W65_ABS24", "lval = fetch24(GET_PBRPC) + GET_X; INC_PC(3);", 1},
{"d,s", "STACK_REL", "$0,s", "1", "%sR_W65_ABS8", "lval = fetch8(GET_PBRPC) + GET_S; INC_PC(1);", 0},
{"(d,s),y", "STACK_REL_INDX_IDX", "($0,s),y", "1", "%sR_W65_ABS8", "lval = fetch16(fetch8(GET_PBRPC) + GET_S) + GET_DBR_HIGH + GET_Y;INC_PC(1);",0},
{"(a)", "ABS_IND", "($0)", "2", "%sR_W65_ABS16", "lval = fetch16(GET_PBRPC) + GET_DBR_HIGH; INC_PC(2);", 1},
{"(a,x)", "ABS_IND_IDX", "($0,x)", "2", "%sR_W65_ABS16",
"lval = fetch16((0xffff & (fetch16(GET_PBRPC) + GET_X )) + GET_PBR_HIGH) + GET_PBR_HIGH;INC_PC(2);",1},
{"xyz", "BLOCK_MOVE", "", "2", "", 0},
0};
struct opinfo optable[257] =
{
{0x00, "brk", "s"},
{0x01, "ora", "(d,x)"},
{0x02, "cop", "#c"},
{0x03, "ora", "d,s"},
{0x04, "tsb", "d"},
{0x05, "ora", "d"},
{0x06, "asl", "d"},
{0x07, "ora", "[d]"},
{0x08, "php", "s"},
{0x09, "ora", "#a"},
{0x0a, "asl", "A"},
{0x0b, "phd", "s"},
{0x0c, "tsb", "a"},
{0x0d, "ora", "a"},
{0x0e, "asl", "a"},
{0x0f, "ora", "al"},
{0x10, "bpl", "r"},
{0x11, "ora", "(d),y"},
{0x12, "ora", "(d)"},
{0x13, "ora", "(d,s),y"},
{0x14, "trb", "d"},
{0x15, "ora", "d,x"},
{0x16, "asl", "d,x"},
{0x17, "ora", "[d],y"},
{0x18, "clc", "i"},
{0x19, "ora", "a,y"},
{0x1a, "inc", "A"},
{0x1b, "tcs", "i"},
{0x1c, "trb", "a"},
{0x1d, "ora", "a,x"},
{0x1e, "asl", "a,x"},
{0x1f, "ora", "al,x"},
{0x20, "jsr", "a"},
{0x21, "and", "(d,x)"},
{0x22, "jsr", "al"},
{0x23, "and", "d,s"},
{0x24, "bit", "(d)"},
{0x25, "and", "d"},
{0x26, "rol", "d"},
{0x27, "and", "[d]"},
{0x28, "plp", "s"},
{0x29, "and", "#a"},
{0x2a, "rol", "A"},
{0x2b, "pld", "s"},
{0x2c, "bit", "a"},
{0x2d, "and", "a"},
{0x2e, "rol", "a"},
{0x2f, "and", "al"},
{0x30, "bmi", "r"},
{0x31, "and", "(d),y"},
{0x32, "and", "(d)"},
{0x33, "and", "(d,s),y"},
{0x34, "bit", "(d,x)"},
{0x35, "and", "d,x"},
{0x36, "rol", "d,x"},
{0x37, "and", "[d],y"},
{0x38, "sec", "i"},
{0x39, "and", "a,y"},
{0x3a, "dec", "A"},
{0x3b, "tsc", "i"},
{0x3c, "bit", "a,x"},
{0x3d, "and", "a,x"},
{0x3e, "rol", "a,x"},
{0x3f, "and", "al,x"},
{0x40, "rti", "s"},
{0x41, "eor", "(d,x)"},
{0x42, "wdm", "i"},
{0x43, "eor", "d,s"},
{0x44, "mvp", "xyz"},
{0x45, "eor", "d"},
{0x46, "lsr", "d"},
{0x47, "eor", "[d]"},
{0x48, "pha", "s"},
{0x49, "eor", "#a"},
{0x4a, "lsr", "A"},
{0x4b, "phk", "s"},
{0x4c, "jmp", "a"},
{0x4d, "eor", "a"},
{0x4e, "lsr", "a"},
{0x4f, "eor", "al"},
{0x50, "bvc", "r"},
{0x51, "eor", "(d),y"},
{0x52, "eor", "(d)"},
{0x53, "eor", "(d,s),y"},
{0x54, "mvn", "xyz"},
{0x55, "eor", "d,x"},
{0x56, "lsr", "d,x"},
{0x57, "eor", "[d],y"},
{0x58, "cli", "i"},
{0x59, "eor", "a,y"},
{0x5a, "phy", "s"},
{0x5b, "tcd", "i"},
{0x5c, "jmp", "al"},
{0x5d, "eor", "a,x"},
{0x5e, "lsr", "a,x"},
{0x5f, "eor", "al,x"},
{0x60, "rts", "s"},
{0x61, "adc", "(d,x)"},
{0x62, "per", "rl"},
{0x63, "adc", "d,s"},
{0x64, "stz", "d"},
{0x65, "adc", "d"},
{0x66, "ror", "d"},
{0x67, "adc", "[d]"},
{0x68, "pla", "s"},
{0x69, "adc", "#a"},
{0x6a, "ror", "A"},
{0x6b, "rtl", "s"},
{0x6c, "jmp", "(a)"},
{0x6d, "adc", "a"},
{0x6e, "ror", "a"},
{0x6f, "adc", "al"},
{0x70, "bvs", "r"},
{0x71, "adc", "(d),y"},
{0x72, "adc", "(d)"},
{0x73, "adc", "(d,s),y"},
{0x74, "stz", "d,x"},
{0x75, "adc", "d,x"},
{0x76, "ror", "d,x"},
{0x77, "adc", "[d],y"},
{0x78, "sei", "i"},
{0x79, "adc", "a,y"},
{0x7a, "ply", "s"},
{0x7b, "tdc", "i"},
{0x7c, "jmp", "(a,x)"},
{0x7d, "adc", "a,x"},
{0x7e, "ror", "a,x"},
{0x7f, "adc", "al,x"},
{0x80, "bra", "r"},
{0x81, "sta", "(d,x)"},
{0x82, "brl", "rl"},
{0x83, "sta", "d,s"},
{0x84, "sty", "d"},
{0x85, "sta", "d"},
{0x86, "stx", "d"},
{0x87, "sta", "[d]"},
{0x88, "dey", "i"},
{0x89, "bit", "#a"},
{0x8a, "txa", "i"},
{0x8b, "phb", "s"},
{0x8c, "sty", "a"},
{0x8d, "sta", "a"},
{0x8e, "stx", "a"},
{0x8f, "sta", "al"},
{0x90, "bcc", "r"},
{0x91, "sta", "(d),y"},
{0x92, "sta", "(d)"},
{0x93, "sta", "(d,s),y"},
{0x94, "sty", "d,x"},
{0x95, "sta", "d,x"},
{0x96, "stx", "d,x"},
{0x97, "sta", "[d],y"},
{0x98, "tya", "i"},
{0x99, "sta", "a,y"},
{0x9a, "txs", "i"},
{0x9b, "txy", "i"},
{0x9c, "stz", "a"},
{0x9d, "sta", "a,x"},
{0x9e, "stz", "a,x"},
{0x9f, "sta", "al,x"},
{0xa0, "ldy", "#i"},
{0xa1, "lda", "(d,x)"},
{0xa2, "ldx", "#i"},
{0xa3, "lda", "d,s"},
{0xa4, "ldy", "d"},
{0xa5, "lda", "d"},
{0xa6, "ldx", "d"},
{0xa7, "lda", "[d]"},
{0xa8, "tay", "i"},
{0xa9, "lda", "#a"},
{0xaa, "tax", "i"},
{0xab, "plb", "s"},
{0xac, "ldy", "a"},
{0xad, "lda", "a"},
{0xae, "ldx", "a"},
{0xaf, "lda", "al"},
{0xb0, "bcs", "r"},
{0xb1, "lda", "(d),y"},
{0xb2, "lda", "(d)"},
{0xb3, "lda", "(d,s),y"},
{0xb4, "ldy", "d,x"},
{0xb5, "lda", "d,x"},
{0xb6, "ldx", "d,y"},
{0xb7, "lda", "[d],y"},
{0xb8, "clv", "i"},
{0xb9, "lda", "a,y"},
{0xba, "tsx", "i"},
{0xbb, "tyx", "i"},
{0xbc, "ldy", "a,x"},
{0xbd, "lda", "a,x"},
{0xbe, "ldx", "a,y"},
{0xbf, "lda", "al,x"},
{0xc0, "cpy", "#i"},
{0xc1, "cmp", "(d,x)"},
{0xc2, "rep", "#c"},
{0xc3, "cmp", "d,s"},
{0xc4, "cpy", "d"},
{0xc5, "cmp", "d"},
{0xc6, "dec", "d"},
{0xc7, "cmp", "[d]"},
{0xc8, "iny", "i"},
{0xc9, "cmp", "#a"},
{0xca, "dex", "i"},
{0xcb, "wai", "i"},
{0xcc, "cpy", "a"},
{0xcd, "cmp", "a"},
{0xce, "dec", "a"},
{0xcf, "cmp", "al"},
{0xd0, "bne", "r"},
{0xd1, "cmp", "(d),y"},
{0xd2, "cmp", "(d)"},
{0xd3, "cmp", "(d,s),y"},
{0xd4, "pei", "d"},
{0xd5, "cmp", "d,x"},
{0xd6, "dec", "d,x"},
{0xd7, "cmp", "[d],y"},
{0xd8, "cld", "i"},
{0xd9, "cmp", "a,y"},
{0xda, "phx", "s"},
{0xdb, "stp", "i"},
{0xdc, "jmp", "[a]"},
{0xdd, "cmp", "a,x"},
{0xde, "dec", "a,x"},
{0xdf, "cmp", "al,x"},
{0xe0, "cpx", "#i"},
{0xe1, "sbc", "(d,x)"},
{0xe2, "sep", "#c"},
{0xe3, "sbc", "d,s"},
{0xe4, "cpx", "d"},
{0xe5, "sbc", "d"},
{0xe6, "inc", "d"},
{0xe7, "sbc", "[d]"},
{0xe8, "inx", "i"},
{0xe9, "sbc", "#a"},
{0xea, "nop", "i"},
{0xeb, "xba", "i"},
{0xec, "cpx", "a"},
{0xed, "sbc", "a"},
{0xee, "inc", "a"},
{0xef, "sbc", "al"},
{0xf0, "beq", "r"},
{0xf1, "sbc", "(d),y"},
{0xf2, "sbc", "(d)"},
{0xf3, "sbc", "(d,s),y"},
{0xf4, "pea", "a"},
{0xf5, "sbc", "d,x"},
{0xf6, "inc", "d,x"},
{0xf7, "sbc", "[d],y"},
{0xf8, "sed", "i"},
{0xf9, "sbc", "a,y"},
{0xfa, "plx", "s"},
{0xfb, "xce", "i"},
{0xfc, "jsr", "(a,x)"},
{0xfd, "sbc", "a,x"},
{0xfe, "inc", "a,x"},
{0xff, "sbc", "al,x"},
0};
int pfunc(a,b)
struct opinfo *a;
struct opinfo *b;
{
return strcmp(a->mode, b->mode);
}
static void
dump_table ()
{
int x;
int y;
printf (" |");
for (x = 0; x < 16; x++)
{
printf (" %x |", x);
}
printf ("\n");
printf (" |");
for (x = 0; x < 16; x++)
{
printf ("-------|");
}
printf ("\n");
for (y = 0; y < 16; y++)
{
printf ("%x |", y);
for (x = 0; x < 16; x++)
{
struct opinfo *p = &optable[y * 16 + x];
if (p->opcode)
{
printf ("%-7s", p->opcode);
}
else
{
printf ("*******");
}
printf ("|");
}
printf ("\n");
printf (" |");
for (x = 0; x < 16; x++)
{
struct opinfo *p = &optable[y * 16 + x];
if (p->mode)
{
printf ("%-7s", p->mode);
}
else
{
printf ("*******");
}
printf ("|");
}
printf ("\n");
printf (" |");
for (x = 0; x < 16; x++)
{
printf ("-------|");
}
printf ("\n");
}
}
dt ()
{
#if 0
int i;
for (i = 0; i < 256; i++)
{
struct opinfo *p = &optable[i];
printf ("/* %02x */ ", i);
if (p->opcode)
printf ("{\"%s\",\"%s\",%d,%d},", p->opcode->name, p->addr->name);
printf ("\n");
}
#endif
}
static
void
init_table ()
{
int i;
for (i = 0; i < 256; i++)
{
struct opinfo *p = optable + i;
struct ainfo *a;
struct oinfo *o;
for (a = alist; a->name; a++)
{
if (strcmp (a->name, p->mode) == 0)
{
p->ai = a;
goto done;
}
}
printf ("bad %x\n", i);
done:;
for (o = olist; o->name; o++)
{
if (strcmp (o->name, p->opcode) == 0)
{
p->oi = o;
goto doneo;
}
}
printf ("bad %x\n", i);
doneo:;
}
}
/* Dump the opcodes sorted by name */
static
void
assembler_table (as)
{
int i;
struct oinfo *o;
struct ainfo *a;
int n = 0;
/* Step through the sorted list of opnames */
printf (" /* WDC 65816 Assembler opcode table */\n");
printf (" /* (generated by the program sim/w65/gencode -a) */\n");
for (a = alist; a->name; a++)
{
printf ("#define ADDR_%-20s%d\t /* %-7s */\n", a->enumname, ++n, a->name);
}
printf ("struct opinfo {\n\tint val;\n\tint code;\n\tchar *name;\n\tint amode;\n};\n");
printf ("struct opinfo optable[257]={\n");
if (as)
{
i = 1;
for (o = olist; o->name; o++)
{
printf ("#define O_%s %d\n", o->name, i++);
}
qsort (optable, 256, sizeof (struct opinfo), pfunc);
printf ("#ifdef DEFINE_TABLE\n");
for (o = olist; o->name; o++)
{
for (i = 0; i < 256; i++)
{
struct opinfo *p = optable + i;
if (p->oi == o)
{
/* This opcode is of the right name */
printf ("\t{0x%02X,\tO_%s,\t\"%s\",\tADDR_%s},\n", p->code, p->oi->name, p->oi->name, p->ai->enumname);
}
}
}
}
else
{
for (i = 0; i < 256; i++)
{
struct opinfo *p = optable + i;
printf ("\t{0x%02X,\t\"%s\",\tADDR_%s},\n", i, p->oi->name, p->ai->enumname);
}
}
printf ("0};\n");
printf ("#endif\n");
/* Generate the operand disassembly case list */
printf ("#define DISASM()\\\n");
{
struct ainfo *a;
for (a = alist; a->name; a++)
{
printf (" case ADDR_%s:\\\n\t", a->enumname);
if (strcmp (a->enumname, "BLOCK_MOVE") == 0)
{
printf ("args[0] = (asR_W65_ABS16 >>8) &0xff;\\\n");
printf ("\targs[1] = ( asR_W65_ABS16 & 0xff);\\\n");
printf ("\tprint_operand (0,\"\t$0,$1\",args);\\\n");
}
else if (a->reloc0 == 0)
{
printf ("print_operand (0, \"\t%s\", 0);\\\n", a->disasmstring );
}
else if (strlen (a->reloc0))
{
printf ("args[0] = ");
printf (a->reloc0, "as","as");
printf (";\\\n");
printf ("\tprint_operand (%d, \"\t%s\", args);\\\n",
a->regflag,
a->disasmstring);
}
printf ("\tsize += %s;\\\n\tbreak;\\\n", a->sizer);
}
}
printf ("\n");
/* Generate the operand size and type case list */
printf ("#define GETINFO(size,type,pcrel)\\\n");
{
struct ainfo *a;
for (a = alist; a->name; a++)
{
printf ("\tcase ADDR_%s: ", a->enumname);
printf ("size = %s;type=", a->sizer);
if (a->reloc0 && strlen (a->reloc0))
{
printf (a->reloc0, "", "");
}
else
printf ("-1");
printf (";pcrel=%d;", a->name[0] == 'P');
printf ("break;\\\n");
}
}
printf ("\n");
}
/* Write out examples of each opcode */
static
void
test_table ()
{
struct opinfo *o;
for (o = optable; o->opcode; o++)
{
printf ("\t%s\t", o->opcode);
printf (o->ai->disasmstring, 0x6543210, 0x6543210);
printf ("\n");
}
}
static void
op_table ()
{
struct opinfo *o;
int i = 0;
/* Write four optables, M=0,1 X=0,1 */
for (o = optable; o->opcode; o++)
{
printf ("{0x%02x, \"%s\", \"%s\"\t},\n",
i++,
o->opcode,
o->mode);
}
}
int worked_out_lval;
static void
genfetch (amode, size)
struct ainfo *amode;
int size;
{
if (amode->howlval)
{
if (strcmp (amode->name, "A") == 0)
{
/* Can't get the lval for the accumulator */
printf ("src = GET_A;\n");
}
else
{
printf ("%s\n", amode->howlval);
worked_out_lval = 1;
if (size == 0)
{
printf ("src = fetch16 (lval);\n");
}
else
{
printf ("src = fetch8 (lval);\n");
}
}
}
}
static void
genstore (amode, size)
struct ainfo *amode;
int size;
{
if (amode->howlval)
{
if (strcmp (amode->name, "A") == 0)
{
/* Can't get the lval for the accumulator */
printf ("SET_A (src);\n");
}
else
{
if (!worked_out_lval)
printf ("%s\n", amode->howlval);
if (size == 0)
{
printf ("store16(lval, src);\n");
}
else
{
printf ("store8(lval, src);\n");
}
}
}
}
/* Generate the code to simulate the instructions */
static void
code_table ()
{
struct opinfo *o;
int x, m;
printf("#include \"interp.h\"\n");
for (x = 0; x < 2; x++) {
for (m = 0; m < 2; m++) {
printf("ifunc_X%d_M%d() {\n",x,m);
printf("#undef GET_MBIT\n");
printf("#undef GET_XBIT\n");
printf("#define GET_XBIT %d\n", x);
printf("#define GET_MBIT %d\n", m);
printf("STARTFUNC();\n");
printf("do { register opcode = fetch8(GET_PBRPC); insts++; INC_PC(1);\n");
printf ("switch (opcode) {\n");
for (o = optable; o->opcode; o++)
{
printf (" /* %s %s */\n", o->opcode, o->ai->name);
printf ("case 0x%02x:\n", o->code);
printf ("{\n");
printf ("int l ;\n");
printf ("register int src;\n");
printf ("register int lval;\n");
worked_out_lval = 0;
switch (o->oi->howsrc)
{
case POP_M:
if (m == 0)
printf ("POP16 (src);");
else
printf ("POP8(src);");
break;
case POP_X:
if (x == 0)
printf ("POP16 (src);");
else
printf ("POP8 (src);");
break;
case POP_8:
printf ("POP8 (src);");
break;
case POP_16:
printf ("POP16 (src);");
break;
case STANDARD_PC_GET:
printf ("%s\n", o->ai->howlval);
break;
case GET_M:
genfetch (o->ai, m);
break;
case G2_GET:
genfetch (o->ai, m);
break;
case GET_X:
genfetch (o->ai, x);
break;
case BRANCH:
printf ("%s", o->ai->howlval);
break;
case COP_GET:
genfetch(o->ai,1);
break;
case STORE_X:
case STORE_M:
;
}
switch (o->oi->howsrc)
{
case BRANCH:
printf ("if (%s) { SET_ONLY_PC(lval);} ", o->oi->howto);
break;
case SPECIAL_CASE:
case GET_M:
case GET_X:
case STORE_X:
case STANDARD_PC_GET:
case G2_GET:
case PUSH_16:
case PUSH_8:
case PUSH_M:
case PUSH_X:
case POP_16:
case POP_8:
case POP_M:
case POP_X:
case COP_GET:
case STORE_M:
printf ("%s", o->oi->howto);
break;
}
switch (o->oi->howsrc)
{
case STORE_M:
genstore (o->ai, m);
break;
case STORE_X:
genstore (o->ai, x);
break;
case PUSH_M:
if (m == 0)
printf ("PUSH16 (src);");
else
printf ("PUSH8(src);");
break;
case PUSH_X:
if (x == 0)
printf ("PUSH16 (src);");
else
printf ("PUSH8 (src);");
break;
case PUSH_8:
printf ("PUSH8 (src);");
break;
case PUSH_16:
printf ("PUSH16 (src);");
break;
case G2_GET:
genstore (o->ai, x, m);
break;
}
printf ("}\n");
printf ("break;\n");
}
printf ("}\n}\n");
printf("while (!saved_state.exception);\n");
printf("#undef GET_MBIT\n");
printf("#undef GET_XBIT\n");
printf("#define GET_MBIT (the_mbit)\n");
printf("#define GET_XBIT (the_xbit)\n");
printf("ENDFUNC();\n");
printf("}");
}
}
}
int
main (ac, av)
char **av;
{
init_table ();
if (ac > 1)
{
if (av[1][1] == 'a')
{
assembler_table (1);
}
if (av[1][1] == 't')
{
test_table ();
}
if (av[1][1] == 'o')
{
op_table ();
}
if (av[1][1] == 'c')
{
code_table ();
}
}
else
dump_table ();
dt ();
return 0;
}

365
sim/w65/interp.c Normal file
View File

@ -0,0 +1,365 @@
/* Simulator for the WDC 65816 architecture.
Written by Steve Chamberlain of Cygnus Support.
sac@cygnus.com
This file is part of W65 sim
THIS SOFTWARE IS NOT COPYRIGHTED
Cygnus offers the following for use in the public domain. Cygnus
makes no warranty with regard to the software or it's performance
and the user accepts the software "AS IS" with all faults.
CYGNUS DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WITH REGARD TO
THIS SOFTWARE INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#include <signal.h>
#include "sysdep.h"
#include <sys/times.h>
#include <sys/param.h>
#include "bfd.h"
#include "remote-sim.h"
#include "../../newlib/libc/sys/w65/sys/syscall.h"
#include "interp.h"
saved_state_type saved_state;
int
get_now ()
{
return time ((long *) 0);
}
void
control_c (sig, code, scp, addr)
int sig;
int code;
char *scp;
char *addr;
{
saved_state.exception = SIGINT;
}
wai ()
{
saved_state.exception = SIGTRAP;
}
wdm (acc, x)
int acc;
int x;
{
int cycles;
/* The x points to where the registers live, acc has code */
#define R(arg) (x + arg * 2)
unsigned R0 = R(0);
unsigned R4 = R(4);
unsigned R5 = R(5);
unsigned R6 = R(6);
unsigned R7 = R(7);
unsigned R8 = R(8);
unsigned char *memory = saved_state.memory;
int a1 = fetch16 (R (4));
switch (a1)
{
case SYS_write:
{
int file = fetch16 (R5);
unsigned char *buf = fetch24 (R6) + memory;
int len = fetch16 (R8);
int res = write (file, buf, len);
store16 (R0, res);
break;
}
case 0:
printf ("%c", acc);
fflush (stdout);
break;
case 1:
saved_state.exception = SIGTRAP;
break;
default:
saved_state.exception = SIGILL;
break;
}
}
void
sim_resume (step, insignal)
int step;
int insignal;
{
void (*prev) ();
register unsigned char *memory;
if (step)
{
saved_state.exception = SIGTRAP;
}
else
{
saved_state.exception = 0;
}
prev = signal (SIGINT, control_c);
do
{
int x = (saved_state.p >> 4) & 1;
int m = (saved_state.p >> 5) & 1;
if (x == 0 && m == 0)
{
ifunc_X0_M0 ();
}
else if (x == 0 && m == 1)
{
ifunc_X0_M1 ();
}
else if (x == 1 && m == 0)
{
ifunc_X1_M0 ();
}
else if (x == 1 && m == 1)
{
ifunc_X1_M1 ();
}
}
while (saved_state.exception == 0);
signal (SIGINT, prev);
}
init_pointers ()
{
if (!saved_state.memory)
{
saved_state.memory = calloc (64 * 1024, NUMSEGS);
}
}
int
sim_write (addr, buffer, size)
SIM_ADDR addr;
unsigned char *buffer;
int size;
{
int i;
init_pointers ();
for (i = 0; i < size; i++)
{
saved_state.memory[(addr + i) & MMASK] = buffer[i];
}
return size;
}
int
sim_read (addr, buffer, size)
SIM_ADDR addr;
unsigned char *buffer;
int size;
{
int i;
init_pointers ();
for (i = 0; i < size; i++)
{
buffer[i] = saved_state.memory[(addr + i) & MMASK];
}
return size;
}
struct
{
unsigned int *ptr;
int size;
}
rinfo[] =
{
&saved_state.r[0], 2,
&saved_state.r[1], 2,
&saved_state.r[2], 2,
&saved_state.r[3], 2,
&saved_state.r[4], 2,
&saved_state.r[5], 2,
&saved_state.r[6], 2,
&saved_state.r[7], 2,
&saved_state.r[8], 2,
&saved_state.r[9], 2,
&saved_state.r[10], 2,
&saved_state.r[11], 2,
&saved_state.r[12], 2,
&saved_state.r[13], 2,
&saved_state.r[14], 2,
&saved_state.r[15], 4,
&saved_state.pc, 4,
&saved_state.a, 4,
&saved_state.x, 4,
&saved_state.y, 4,
&saved_state.dbr, 4,
&saved_state.d, 4,
&saved_state.s, 4,
&saved_state.p, 4,
&saved_state.ticks, 4,
&saved_state.cycles, 4,
&saved_state.insts, 4,
0
};
void
sim_store_register (rn, value)
int rn;
unsigned char *value;
{
unsigned int val;
int i;
val = 0;
for (i = 0; i < rinfo[rn].size; i++)
{
val |= (*value++) << (i * 8);
}
*(rinfo[rn].ptr) = val;
}
void
sim_fetch_register (rn, buf)
int rn;
unsigned char *buf;
{
unsigned int val = *(rinfo[rn].ptr);
int i;
for (i = 0; i < rinfo[rn].size; i++)
{
*buf++ = val;
val = val >> 8;
}
}
sim_reg_size (n)
{
return rinfo[n].size;
}
int
sim_trace ()
{
return 0;
}
void
sim_stop_reason (reason, sigrc)
enum sim_stop *reason;
int *sigrc;
{
*reason = sim_stopped;
*sigrc = saved_state.exception;
}
int
sim_set_pc (x)
SIM_ADDR x;
{
saved_state.pc = x;
return 0;
}
void
sim_info (verbose)
int verbose;
{
double timetaken = (double) saved_state.ticks;
double virttime = saved_state.cycles / 2.0e6;
printf ("\n\n# instructions executed %10d\n", saved_state.insts);
printf ("# cycles %10d\n", saved_state.cycles);
printf ("# real time taken %10.4f\n", timetaken);
printf ("# virtual time taken %10.4f\n", virttime);
if (timetaken != 0)
{
printf ("# cycles/second %10d\n", (int) (saved_state.cycles / timetaken));
printf ("# simulation ratio %10.4f\n", virttime / timetaken);
}
}
void
sim_kill ()
{
}
void
sim_open (name)
char *name;
{
}
#undef fetch8
fetch8func (x)
{
if (x & ~MMASK)
{
saved_state.exception = SIGBUS;
return 0;
}
return saved_state.memory[x];
}
fetch8 (x)
{
return fetch8func(x);
}
void
sim_close (quitting)
int quitting;
{
/* nothing to do */
}
int
sim_load (prog, from_tty)
char *prog;
int from_tty;
{
/* Return nonzero so gdb will handle it. */
return 1;
}
void
sim_create_inferior (start_address, argv, env)
SIM_ADDR start_address;
char **argv;
char **env;
{
/* ??? We assume this is a 4 byte quantity. */
int pc;
pc = start_address;
sim_store_register (16, (unsigned char *) &pc);
}

194
sim/w65/interp.h Normal file
View File

@ -0,0 +1,194 @@
#define fetch8(x) fetch8func((cycles++,(x)))
#define NFAKES 16
typedef struct
{
unsigned a;
unsigned x;
unsigned y;
unsigned pc; /* Keep pbr in there too */
unsigned dbr;
unsigned d;
unsigned s;
unsigned p;
unsigned e;
unsigned char *memory;
unsigned int exception;
unsigned int ticks;
unsigned int cycles;
unsigned int insts;
unsigned int r[NFAKES];
}
saved_state_type;
#define GET_P \
((GET_NBIT << 7) \
| (GET_VBIT << 6) \
| (GET_MBIT << 5) \
| (GET_XBIT << 4) \
| (GET_DBIT << 3) \
| (GET_IBIT << 2) \
| (GET_ZBIT << 1) \
| (GET_CBIT << 0))
#define SET_P(_bits) \
{ int bits = _bits; \
SET_NBIT((bits>>7)&1); \
SET_VBIT((bits>>6)&1); \
SET_MBIT((bits>>5)&1); \
SET_XBIT((bits>>4)&1); \
SET_DBIT((bits>>3)&1); \
SET_IBIT((bits>>2)&1); \
SET_ZBIT((bits>>1)&1); \
SET_CBIT((bits>>0)&1); }
#define BFLAG (1<<4)
#define DFLAG (1<<3)
#define GET_A (the_a)
#define GET_E (the_e)
#define GET_B (the_b)
#define GET_CBIT (the_cbit)
#define GET_D (the_d)
#define GET_DBIT (the_dbit)
#define GET_DBR_HIGH (the_dbr)
#define GET_DBR_LOW (the_dbr >> 16)
#define GET_DPR (the_dpr)
#define GET_IBIT (the_ibit)
#define GET_MBIT (the_mbit)
#define SET_XBIT(x) { the_xbit = x; }
#define GET_NBIT (the_nbit)
#define GET_PBRPC (the_pc)
#define GET_PBR_HIGH (the_pc & 0xff0000)
#define GET_PBR_LOW (the_pc >> 16)
#define GET_PC (the_pc & 0xffff)
#define GET_S (the_s)
#define GET_VBIT (the_vbit)
#define GET_X (the_x)
#define GET_XBIT (the_xbit)
#define GET_Y (the_y)
#define GET_ZBIT (the_zbit)
#define IFLAG (1<<2)
#define INC_PC(x) {the_pc += x;}
#define POP16(x) { int _xx; POP8(x); POP8(_xx); x+= _xx<<8;}
#define POP24(x) { int _xx; POP8(x); POP8(_xx); x += _xx << 8; POP8(_xx); x += _xx << 16; }
#define POP8(x) { SET_S(GET_S +1); x = fetch8(GET_S);}
#define PUSH16(x) { int _xx = x;PUSH8(_xx >> 8); PUSH8(_xx);}
#define PUSH8(x) { store8(GET_S, x); SET_S(GET_S-1);}
#define SET_A(x) { the_a = x & AMASK; }
#define SET_B(x) { the_b = x;}
#define SET_CBIT(x) { the_cbit = x;}
#define SET_CBIT_M(x) { the_cbit = (x & (GET_MBIT ? 0x100: 0x10000)) != 0;}
#define SET_CBIT_X(x) { the_cbit = (x & (GET_XBIT ? 0x100: 0x10000)) != 0;}
#define SET_D(x) {the_d = x;}
#define SET_DBIT(x) { the_dbit= x;}
#define SET_DBR_LOW(x) {the_dbr = (x<<16);}
#define SET_DPR(x) { the_dpr = x;}
#define SET_E(x) { the_e = x;}
#define SET_IBIT(x) { the_ibit = x;}
#define SET_MBIT(x) { the_mbit = x; }
#define SET_NBIT(x) { the_nbit = x;}
#define SET_NBIT_16(x) { the_nbit= ( ((x) & (0x8000)) != 0);}
#define SET_NBIT_8(x) { the_nbit= ( ((x) & (0x80)) != 0);}
#define SET_NBIT_M(x) { if (GET_MBIT) { SET_NBIT_8(x); } else { SET_NBIT_16(x);}}
#define SET_NBIT_X(x) { if (GET_XBIT) { SET_NBIT_8(x); } else { SET_NBIT_16(x);}}
#define SET_PBR(x) { the_pc = (the_pc & 0xffff) + ((x)<<16);}
#define SET_PBRPC(x) { the_pc = x;}
#define SET_ONLY_PC(x) { the_pc = (the_pc & 0xff0000) + ((x ) & 0xffff);}
#define SET_S(x) {the_s = x; }
#define SET_VBIT_16(x) {the_vbit = ((((int)x) < -0x8000) || (((int)x) > 0x7fff));}
#define SET_VBIT_8(x) {the_vbit = ((((int)x) < -0x80) || (((int)x) > 0x7f));}
/*#define SET_VBIT_M(x) { if(GET_MBIT) {SET_VBIT_8(x);}else {SET_VBIT_16(x);}}*/
#define SET_ZBIT_16(x) { the_zbit = ((x & 0xffff) == 0);}
#define SET_ZBIT_8(x) { the_zbit = ((x & 0xff) == 0);}
#define SET_ZBIT_M(x) { if(GET_MBIT) {SET_ZBIT_8(x);}else {SET_ZBIT_16(x);}}
#define SET_ZBIT_X(x) { if(GET_XBIT) {SET_ZBIT_8(x);}else {SET_ZBIT_16(x);}}
#define SET_VBIT(x) { the_vbit = x; }
#define SET_ZBIT(x) { the_zbit = x; }
#define SET_X(x) { the_x = (x) & (GET_XBIT ? 0xff : 0xffff);}
#define SET_Y(x) { the_y = (x) & (GET_XBIT ? 0xff : 0xffff);}
#define AMASK ( GET_MBIT ? 0xff : 0xffff)
#define SMASK ( GET_MBIT ? 0x80 : 0x8000)
#define SET_VBIT_M(s1,acc,d) ( the_vbit = ((s1 ^ acc) & (acc ^ d) & SMASK )!=0)
/*#define fetch8(x) (memory[x&MMASK])*/
#define fetch16(x) (fetch8(x) + (fetch8((x)+1)<<8))
#define fetch24(x) (fetch8(x) + (fetch8((x)+1)<<8) + (fetch8((x)+2)<<16))
#define fetch8sext(x) ((char)fetch8(x))
#define fetch16sext(x) ((short)fetch16(x))
#define store8(x,y) {memory[x&MMASK]=y;}
#define store16(x,y) { store8(x,y); store8(x+1,y>>8);}
#define SEXTM(x) (GET_MBIT ? ((char)x): ((short)x))
#define STARTFUNC() \
register unsigned char *memory;\
int the_s; \
int the_b; \
int the_x; \
int the_d; \
int the_y; \
int the_dbr; \
int the_pc; \
int the_nbit; \
int the_vbit; \
int the_z; \
int the_mbit; \
int the_ibit; \
int the_xbit; \
int the_zbit; \
int the_cbit; \
int the_dbit; \
int the_dpr; \
int the_e; \
int the_a; \
int tick_start = get_now ();\
int cycles = 0; \
int insts = 0; \
\
SET_E (saved_state.e); \
SET_P (saved_state.p); \
SET_A (saved_state.a); \
SET_X (saved_state.x); \
SET_Y (saved_state.y); \
SET_ONLY_PC (saved_state.pc); \
SET_PBR (saved_state.pc >> 16); \
SET_DBR_LOW (saved_state.dbr); \
SET_D (saved_state.d); \
SET_S (saved_state.s); \
memory = saved_state.memory ; \
{ int k; for (k = 0; k < NFAKES; k++) \
store16(0x10 + k * 2, saved_state.r[k]); }\
\
top: \
#define ENDFUNC() \
rethink: \
saved_state.ticks += get_now () - tick_start;\
saved_state.cycles += cycles; \
saved_state.insts += insts; \
{ int k; for (k = 0; k < NFAKES; k++) \
saved_state.r[k] = fetch16(0x10 + k * 2); }\
\
saved_state.e = GET_E; \
saved_state.p = GET_P; \
saved_state.a = GET_A; \
saved_state.x = GET_X; \
saved_state.y = GET_Y; \
saved_state.pc = GET_PBRPC; \
saved_state.dbr = GET_DBR_LOW; \
saved_state.d = GET_D; \
saved_state.s = GET_S; \
\
return 0; \
extern saved_state_type saved_state;
#define MMASK 0xfffff
#define NUMSEGS 16
#define RETHINK goto rethink;

109
sim/w65/run.c Normal file
View File

@ -0,0 +1,109 @@
/* run front end support for W65
Copyright (C) 1995 Free Software Foundation, Inc.
This file is part of W65 SIM
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Steve Chamberlain
sac@cygnus.com */
#include <stdio.h>
#include "bfd.h"
#include "sysdep.h"
extern printf();
int
main (ac, av)
int ac;
char **av;
{
bfd *abfd;
bfd_vma start_address;
asection *s;
int i;
int verbose = 0;
int trace = 0;
char *name = "";
for (i = 1; i < ac; i++)
{
if (strcmp (av[i], "-v") == 0)
{
verbose = 1;
}
else if (strcmp (av[i], "-t") == 0)
{
trace = 1;
}
else
{
name = av[i];
}
}
if (verbose)
{
printf ("run %s\n", name);
}
abfd = bfd_openr (name, "coff-w65");
if (abfd)
{
if (bfd_check_format (abfd, bfd_object))
{
for (s = abfd->sections; s; s = s->next)
{
unsigned char *buffer = malloc (bfd_section_size (abfd, s));
bfd_get_section_contents (abfd,
s,
buffer,
0,
bfd_section_size (abfd, s));
sim_write (s->vma, buffer, bfd_section_size (abfd, s));
free (buffer);
}
start_address = bfd_get_start_address (abfd);
sim_set_pc (start_address);
if (trace)
{
int done = 0;
while (!done)
{
done = sim_trace ();
}
}
else
{
sim_resume (0, 0);
}
if (verbose)
sim_info (printf, 0);
/* Find out what was in r0 and return that */
{
unsigned char b[4];
sim_fetch_register(0, b);
return b[3];
}
}
}
return 1;
}

3
sim/w65/w65.mt Executable file
View File

@ -0,0 +1,3 @@
ALL=all-w65
CLEAN=clean-w65
DO_INSTALL=install-w65