* 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/m/hp9k800.h b/v7/src/microcode/m/hp9k800.h
index 7124bbbd250c1714d2aa33119e8737e2960ba162..79159c7e09312cf398ebf4ec44347a8ad082c668 100644 (file)
--- a/v7/src/microcode/m/hp9k800.h
+++ b/v7/src/microcode/m/hp9k800.h
@@ -1,7 +1,7 @@
 /* -*-C-*-
    Machine file for HP9000 series 800
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/m/Attic/hp9k800.h,v 1.4 1990/01/22 22:26:07 jinx Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/m/Attic/hp9k800.h,v 1.5 1990/06/20 19:54:03 cph Rel $
 
 Copyright (c) 1989, 1990 Massachusetts Institute of Technology
 
@@ -40,5 +40,5 @@ MIT in each case. */
 #define STARBASE_DEVICE_DRIVERS -ldd98550
 #endif
 
-#define C_SWITCH_MACHINE -Dspectrum -DTYPE_CODE_LENGTH=6
+#define C_SWITCH_MACHINE -DTYPE_CODE_LENGTH=6
 #define M4_SWITCH_MACHINE -DTYPE_CODE_LENGTH=6

diff --git a/v7/src/microcode/m/sun3.h b/v7/src/microcode/m/sun3.h
index 5bec63785bb25a7ea2f62f5908ccdbea088afe41..182fb8469d174a4312ccc400c9999e5652877e37 100644 (file)
--- a/v7/src/microcode/m/sun3.h
+++ b/v7/src/microcode/m/sun3.h
@@ -1,7 +1,7 @@
 /* -*-C-*-
    Machine file for Sun 3
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/m/Attic/sun3.h,v 1.2 1990/05/08 10:20:11 cph Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/m/Attic/sun3.h,v 1.3 1990/06/20 19:54:08 cph Rel $
 
 Copyright (c) 1989, 1990 Massachusetts Institute of Technology
 
@@ -35,8 +35,15 @@ MIT in each case. */
 
 #define PROC_TYPE PROC_TYPE_68020
 
-/* Remove "-Dsun3" if you are running an older version of the operating
-   system.  If your machine doesn't have a 68881 coprocessor, remove
+#ifndef ALTERNATE_CC
+
+/* If your machine doesn't have a 68881 coprocessor, remove
    "-f68881" from this line and the LD_SWITCH_MACHINE line. */
-#define C_SWITCH_MACHINE -Dsun -Dunix -Dsun3 -f68881 -DTYPE_CODE_LENGTH=6
+#define C_SWITCH_MACHINE -Dsun3 -DTYPE_CODE_LENGTH=6 -f68881
 #define LD_SWITCH_MACHINE -f68881
+
+#else /* ALTERNATE_CC */
+
+#define C_SWITCH_MACHINE -Dsun3 -DTYPE_CODE_LENGTH=6
+
+#endif

diff --git a/v7/src/microcode/m/sun4.h b/v7/src/microcode/m/sun4.h
index 8b0693e95b1b428e068cb525dd2975201f46be51..5efc8a6e49f53f34e0b8d9308fe682ad14465c9a 100644 (file)
--- a/v7/src/microcode/m/sun4.h
+++ b/v7/src/microcode/m/sun4.h
@@ -1,7 +1,7 @@
 /* -*-C-*-
    Machine file for Sun 4
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/m/Attic/sun4.h,v 1.1 1990/02/07 21:33:20 jinx Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/m/Attic/sun4.h,v 1.2 1990/06/20 19:54:13 cph Rel $
 
 Copyright (c) 1990 Massachusetts Institute of Technology
 
@@ -35,5 +35,5 @@ MIT in each case. */
 
 #define PROC_TYPE PROC_TYPE_SPARC
 
-#define C_SWITCH_MACHINE -Dsun -Dunix -Dsun4
+#define C_SWITCH_MACHINE -Dsun4
 #define LD_SWITCH_MACHINE  

diff --git a/v7/src/microcode/s/bsd4-2.h b/v7/src/microcode/s/bsd4-2.h
index 2cefca67e2763d7821f6d03b6dc29e0fdf9e5ac1..57543ebca2bb2da5b2e86efb1f96fc4fb02e4170 100644 (file)
--- a/v7/src/microcode/s/bsd4-2.h
+++ b/v7/src/microcode/s/bsd4-2.h
@@ -1,7 +1,7 @@
 /* -*-C-*-
    System file for BSD4.2
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/s/Attic/bsd4-2.h,v 1.3 1989/08/02 01:03:59 cph Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/s/Attic/bsd4-2.h,v 1.4 1990/06/20 19:54:52 cph Exp $
 
 Copyright (c) 1989 Massachusetts Institute of Technology
 
@@ -36,11 +36,8 @@ MIT in each case. */
 /* This says we have curses terminal support for Edwin. */
 #define HAVE_CURSES
 
-#define C_SWITCH_SYSTEM -Dbsd
+#define C_SWITCH_SYSTEM -D_BSD4_2
 
 #define LIBS_SYSTEM -ltermcap
 
-#define SOURCES_SYSTEM unixprim.c
-#define OBJECTS_SYSTEM unixprim.o
-
 #define ALTERNATE_M4 s/ultrix.m4

diff --git a/v7/src/microcode/s/hpux.h b/v7/src/microcode/s/hpux.h
index daa96500bd7e4545c0219968f87176ed8f708127..b82e4b007820ea15b6c454a7c6c73385585e17f1 100644 (file)
--- a/v7/src/microcode/s/hpux.h
+++ b/v7/src/microcode/s/hpux.h
@@ -1,7 +1,7 @@
 /* -*-C-*-
    System file for HP-UX
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/s/Attic/hpux.h,v 1.5 1990/04/17 22:20:00 cph Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/s/Attic/hpux.h,v 1.6 1990/06/20 19:54:58 cph Exp $
 
 Copyright (c) 1989, 1990 Massachusetts Institute of Technology
 
@@ -42,9 +42,6 @@ MIT in each case. */
 /* No special libraries are needed for debugging. */
 #define LIB_DEBUG
 
-#define SOURCES_SYSTEM unixprim.c
-#define OBJECTS_SYSTEM unixprim.o
-
 #ifndef HAVE_CURSES
 #define LIBS_SYSTEM -lcurses
 #endif
@@ -53,9 +50,7 @@ MIT in each case. */
 #define INSTALL_PROGRAM cp
 #endif
 
-#ifdef ALTERNATE_CC
-/* If the alternate compiler defines __STDC__ this macro must also be
+/* If the compiler defines __STDC__ this macro must also be
    defined or the include files don't define many necessary symbols.
    In any case this definition does no harm. */
-#define C_SWITCH_SYSTEM -D_HPUX_SOURCE
-#endif
+#define C_SWITCH_SYSTEM -D_HPUX -D_HPUX_SOURCE

diff --git a/v7/src/microcode/s/ultrix.h b/v7/src/microcode/s/ultrix.h
index a623da0924487e8de52bd29e08607fad9a03e0a4..4c69c6a364f1f4ec9629faa912805741199c1db4 100644 (file)
--- a/v7/src/microcode/s/ultrix.h
+++ b/v7/src/microcode/s/ultrix.h
@@ -1,7 +1,7 @@
 /* -*-C-*-
    System file for Ultrix
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/s/Attic/ultrix.h,v 1.6 1990/04/12 21:08:14 jinx Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/s/Attic/ultrix.h,v 1.7 1990/06/20 19:55:03 cph Exp $
 
 Copyright (c) 1989, 1990 Massachusetts Institute of Technology
 
@@ -39,7 +39,7 @@ MIT in each case. */
 /* This says we have curses terminal support for Edwin. */
 #define HAVE_CURSES
 
-#define C_SWITCH_SYSTEM -Dbsd -DULTRIX
+#define C_SWITCH_SYSTEM -D_BSD4_2 -D_ULTRIX
 
 #define LIBS_SYSTEM -ltermcap
 

diff --git a/v7/src/microcode/s/umax.h b/v7/src/microcode/s/umax.h
index 1e5d5efe690441d0584d9da2d6fc359fd1dfe931..53e49164f4eb67e09339b21774eb5e416a95c678 100644 (file)
--- a/v7/src/microcode/s/umax.h
+++ b/v7/src/microcode/s/umax.h
@@ -1,7 +1,7 @@
 /* -*-C-*-
    System file for Encore UMAX42 and Mach
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/s/Attic/umax.h,v 1.1 1989/08/02 17:02:23 cph Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/s/Attic/umax.h,v 1.2 1990/06/20 19:55:07 cph Exp $
 
 Copyright (c) 1989 Massachusetts Institute of Technology
 
@@ -36,9 +36,6 @@ MIT in each case. */
 /* This says we have curses terminal support for Edwin. */
 #define HAVE_CURSES
 
-#define C_SWITCH_SYSTEM -Dbsd -Dumax
+#define C_SWITCH_SYSTEM -D_BSD4_2 -Dumax
 
 #define LIBS_SYSTEM -ltermcap
-
-#define SOURCES_SYSTEM unixprim.c
-#define OBJECTS_SYSTEM unixprim.o