* Complete redesign of the operating-system interface. I/O is more

uniform and is able to take advantage of things like sockets, pipes,
ptys, etc.  All I/O buffering is moved into the runtime system for
better performance with Scheme compiler code.  Strong knowledge of
POSIX.1 should make porting to VMS easy once VMS supports POSIX.1.

* Change operating system conditionalizations to standard form
suggested by POSIX.1.

* Add FSF macros to support ANSI declarations.

* Add dynamic-stack package and obstacks.

* Provide higher-level utilities for parsing command line options.

* Instead of `Back_To_Eval', there is now a procedure
`abort_to_interpreter' which knows about everything that needs to be
cleaned up.

* Change names of some macros:

	Pop				STACK_POP
	Push				STACK_PUSH
	Push_From			STACK_LOCATIVE_PUSH
	Pop_Into			STACK_LOCATIVE_POP (similar)
	Stack_Ref			STACK_REF
	Top_Of_Stack()			STACK_REF(0)
	Simulate_Popping		STACK_LOC
	Simulate_Pushing		STACK_LOC (similar)
	Stack_Distance			STACK_LOCATIVE_DIFFERENCE (similar)
	Pop_Primitive_Frame		POP_PRIMITIVE_FRAME
	Metering_Apply_Primitive	PRIMITIVE_APPLY
	Export_Regs_Before_Primitive	EXPORT_REGS_BEFORE_PRIMITIVE
	Import_Regs_After_Primitive	IMPORT_REGS_AFTER_PRIMITIVE

* Sun assembler can't handle a constant used in "cmpaux-mc68k.m4", so
provide an option to rewrite that instruction as two instructions.

* Some compilers won't cast a function to an integer, so kludge around
it by mis-declaring the external function as an integer, taking it the
integer's address, and casting THAT to an integer.

* Move critical section code and termination code to their own files.

diff --git a/v7/src/microcode/bchdmp.c b/v7/src/microcode/bchdmp.c
index 5e1090becd8a261469033e352fb3e22886bd1471..3839fede69152f6b3244681c7c951c7fc07176ab 100644 (file)
--- a/v7/src/microcode/bchdmp.c
+++ b/v7/src/microcode/bchdmp.c
@@ -1,6 +1,6 @@
 /* -*-C-*-
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/Attic/bchdmp.c,v 9.50 1990/06/20 17:38:05 cph Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/Attic/bchdmp.c,v 9.51 1990/06/20 21:13:26 cph Exp $
 
 Copyright (c) 1987, 1988, 1989, 1990 Massachusetts Institute of Technology
 
@@ -38,6 +38,7 @@ MIT in each case. */
 
 #include "scheme.h"
 #include "prims.h"
+#include "osio.h"
 #include "osfile.h"
 #include "trap.h"
 #include "lookup.h"            /* UNCOMPILED_VARIABLE */
@@ -736,7 +737,7 @@ DEFINE_PRIMITIVE ("DUMP-BAND", Prim_band_dump, 2, 2, 0)
   }
   else
   {
-    unsigned char * filename = (STRING_LOC ((ARG_REF (2)), 0));
+    CONST char * filename = ((CONST char *) (STRING_LOC ((ARG_REF (2)), 0)));
     dump_channel = (OS_open_dump_file (filename));
     if (dump_channel == NO_CHANNEL)
       error_bad_range_arg (2);

diff --git a/v7/src/microcode/bchmmg.c b/v7/src/microcode/bchmmg.c
index c6e8eaa7289aed230bf28dedc47a2d0a0310beb5..c5c70359dccdffc440889d18400511ee6138844d 100644 (file)
--- a/v7/src/microcode/bchmmg.c
+++ b/v7/src/microcode/bchmmg.c
@@ -1,6 +1,6 @@
 /* -*-C-*-
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/Attic/bchmmg.c,v 9.54 1990/06/20 17:38:18 cph Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/Attic/bchmmg.c,v 9.55 1990/06/20 21:13:44 cph Exp $
 
 Copyright (c) 1987, 1988, 1989, 1990 Massachusetts Institute of Technology
 
@@ -109,7 +109,7 @@ extern char *mktemp();
 
 int gc_file;
 static long current_disk_position;
-static char *gc_file_name;
+static CONST char * gc_file_name;
 static char gc_default_file_name[FILE_NAME_LENGTH] = GC_DEFAULT_FILE_NAME;
 
 void