From 06137fcb39050b754f71835da1f4ac24d3e08c41 Mon Sep 17 00:00:00 2001
From: Steve Chamberlain <sac@cygnus>
Date: Mon, 4 Jan 1993 20:55:22 +0000
Subject: [PATCH] 	* p{1,3}.c (sim_resume): when running on dos, any
 character typed to 	the keyboard will cause a simulated exception.

---
 sim/h8300/ChangeLog   |  5 +++++
 sim/h8300/Makefile.in | 19 +++--------------
 sim/h8300/p1.c        | 57 ++++++++++++++++++++++++++-------------------------
 sim/h8300/p3.c        |  9 ++++----
 4 files changed, 41 insertions(+), 49 deletions(-)

diff --git a/sim/h8300/ChangeLog b/sim/h8300/ChangeLog
index c028b42..f0cfbe6 100644
--- a/sim/h8300/ChangeLog
+++ b/sim/h8300/ChangeLog
@@ -1,3 +1,8 @@
+Mon Jan  4 12:32:35 1993  Steve Chamberlain  (sac@wahini.cygnus.com)
+
+	* p1.c (sim_resume): when running on dos, any character typed to
+	the keyboard will cause a simulated exception.
+
 Sun Jan  3 14:15:07 1993  Steve Chamberlain  (sac@thepub.cygnus.com)
 
 	* p1.c, p3.c, run.c, writecode.c: all used h8/300 opcodes in and
diff --git a/sim/h8300/Makefile.in b/sim/h8300/Makefile.in
index 1a87e92..4a5f7af 100644
--- a/sim/h8300/Makefile.in
+++ b/sim/h8300/Makefile.in
@@ -57,8 +57,9 @@ INCDIR = $(srcdir)/../include
 CSEARCH = -I. -I$(srcdir) -I$(INCDIR) -I$(srcdir)/../bfd
 DEP = mkdep
 
+#### host, target, and site specific Makefile frags come in here.
 
-TARGETLIB = libsim.a
+all:	run 
 
 run:	code.o run.o
 	$(CC) -o run code.o run.o ../bfd/libbfd.a ../libiberty/libiberty.a
@@ -72,7 +73,7 @@ p2.c:writecode
 
 
 writecode:writecode.c
-	$(CC_FOR_BUILD) -o writecode -g $(CSEARCH) -c $(srcdir)/writecode.c 
+	$(CC_FOR_BUILD) -o writecode -g $(CSEARCH)  $(srcdir)/writecode.c 
 
 
 
@@ -98,13 +99,6 @@ FLAGS_TO_PASS = \
 	$(CC) -c $(CFLAGS) $(HDEFINES) $(TDEFINES) $(CSEARCH) $(CSWITCHES) $<
 
 
-# C source files that correspond to .o's.
-CFILES = z8k-dis.c
-
-STAGESTUFF = $(TARGETLIB) $(OFILES)
-
-all: $(TARGETLIB) 
-
 
 .NOEXPORT:
 
@@ -117,13 +111,6 @@ install-info:
 # HDEPFILES comes from the host config; TDEPFILES from the target config.
 
 
-$(TARGETLIB): $(OFILES)
-	 rm -f $(TARGETLIB)
-	 $(AR) $(AR_FLAGS) $(TARGETLIB) $(OFILES)
-	 $(RANLIB) $(TARGETLIB)
-
-# Circumvent Sun Make bug with VPATH.
-sparc-opc.o: sparc-opc.c
 
 tags etags: TAGS
 
diff --git a/sim/h8300/p1.c b/sim/h8300/p1.c
index 1193e9b..9c9d16c 100644
--- a/sim/h8300/p1.c
+++ b/sim/h8300/p1.c
@@ -58,32 +58,6 @@ int exception;
 
 static unsigned char *mem;
 
-void
-control_c (sig, code, scp, addr)
-     int sig;
-     int code;
-     char *scp;
-     char *addr;
-{
-  exception = SIGINT;
-}
-
-void
-sim_store_register (reg, val)
-int reg;
-int val;
-{
-  saved_state.reg[reg] = val;
-}
-
-void
-sim_fetch_register (reg, buf)
-int reg;
-char *buf;
-{
-  buf[0] = saved_state.reg[reg] >> 8;
-  buf[1] = saved_state.reg[reg];
-}
 
 static union
 {
@@ -108,7 +82,6 @@ meminit ()
 
       mem = calloc (1024, 64);
       littleendian.i = 1;
-
       /* initialze the array of pointers to byte registers */
       for (tmp = 0; tmp < 8; tmp++)
 	{
@@ -143,6 +116,35 @@ meminit ()
     }
 }
 
+
+void
+control_c (sig, code, scp, addr)
+     int sig;
+     int code;
+     char *scp;
+     char *addr;
+{
+  exception = SIGINT;
+}
+
+void
+sim_store_register (reg, val)
+int reg;
+int val;
+{
+  saved_state.reg[reg] = val;
+}
+
+void
+sim_fetch_register (reg, buf)
+int reg;
+char *buf;
+{
+  meminit();
+  buf[0] = saved_state.reg[reg] >> 8;
+  buf[1] = saved_state.reg[reg];
+}
+
 void
 sim_write (to, from, len)
      int to;
@@ -221,7 +223,6 @@ int sig;
     }
   do
     {
-      dst = 0xfeedface;
       b0 = pc[0];
       b1 = pc[1];
 
diff --git a/sim/h8300/p3.c b/sim/h8300/p3.c
index 7d4d481..0eb5543 100644
--- a/sim/h8300/p3.c
+++ b/sim/h8300/p3.c
@@ -1,24 +1,20 @@
  movflags8:
-if (dst == 0xfeedface) abort();
  n = dst & 0x80;
  z = !(dst & 0xff);
  v = 0;
 goto next;
  movflags16:
-if (dst == 0xfeedface) abort();
  n = dst & 0x8000;
  z = !(dst & 0xffff);
  v = 0;
 goto next;
  aluflags8:
-if (dst == 0xfeedface) abort();
  n = dst & 0x80;
  z = !(dst & 0xff);
  v = ((srca & 0x80) == (srcb & 0x80)) && ((srca & 0x80) != (dst & 0x80));
  c = dst & 0x100;
  goto next;
  aluflags16:
-if (dst == 0xfeedface) abort();
  n = dst & 0x8000;
  z = !(dst & 0xffff);
  v = ((srca & 0x8000) == (srcb & 0x8000)) && ((srca & 0x8000) != (dst & 0x8000));
@@ -31,12 +27,15 @@ break;
  shiftflags:
  v = 0;
  incflags:
-if (dst == 0xfeedface) abort();
  z = !(dst & 0xff);
  n =  dst & 0x80; 
 goto next;
  next: ;
 pc = npc;
+#ifdef __GO32__
+if (kbhit())
+      exception = SIGINT;
+#endif
 } while (!exception);
 
 saved_state.cycles = cycles;
-- 
2.7.4