* Make-common.in (SIM_ENVIRONMENT): New variable.

[deliverable/binutils-gdb.git] / sim / common / ChangeLog

diff --git a/sim/common/ChangeLog b/sim/common/ChangeLog
index de941d46ba1f2d10a9de3cfa23cb3b04bd1d7620..90ce9da3098a19761d07fbd8dcf9523f277512dc 100644 (file)
--- a/sim/common/ChangeLog
+++ b/sim/common/ChangeLog
@@ -1,3 +1,41 @@
+Wed Dec  3 17:56:02 1997  Doug Evans  <devans@canuck.cygnus.com>
+
+       * Make-common.in (SIM_ENVIRONMENT): New variable.
+       (CONFIG_CFLAGS): Add it.
+       * aclocal.m4 (SIM_AC_OPTION_ENVIRONMENT): Handle
+       --enable-sim-environment option.
+       * configure: Regenerated.
+       * sim-config.h (environment support): Rewrite.
+       * sim-config.c (current_environment): Define as enum, unconditionally.
+       (current_alignment): Define unconditionally.
+       (config_environment_to_a): Update.
+       (config_alignment_to_a): Fix type of argument.  Define unconditionally.
+       (sim_config): Handle environment and alignment determination
+       unconditionally.  Delete sanity checks of current_environment,
+       unnecessary.
+       (print_sim_config): Update.
+       * sim-options.c (STANDARD_OPTIONS enum): Add OPTION_ENVIRONMENT.
+       (standard_options): Add --environment.
+       (standard_option_handler): Likewise.
+
+Fri Nov 28 12:21:25 1997  Andrew Cagney  <cagney@b1.cygnus.com>
+
+       * sim-alu.h: Add notes on carry vs borrow for subtraction.
+       (ALU{,8,16,32,64}ADD): Redefine ADD macro as add overflowing.
+       (ALU{,8,16,32,64}ADDC): Define - add carrying.
+       (ALU{,8,16,32,64}SUB): Redefine SUB macro as subtract overflowing.
+       (ALU{,8,16,32,64}SUBB): Define - subtract borrowing.
+       (ALU{,8,16,32,64}SUBC): Define - tract carrying.
+       (ALU{,8,16,32,64}ADD_CA, ALU{,8,16,32,64}ADDC_C): Replace single
+       argument ADD_CA macro with two argument ADDC_C - add carrying with
+       carry in.
+       (ALU{,8,16,32,64}SUB_CA, ALU{,8,16,32,64}SUBC_X): Replace single
+       argument SUB_CA macro with two argument SUBC_X - subtract
+       carrying, extended.
+       (ALU{,8,16,32,64}SUBB_B): Define - subtract borrowing with
+       borrow-in.
+       (ALU{,8,16,32,64}NEGC, ALU{,8,16,32,64}NEGB): Define.
+
 Sun Nov 30 17:40:57 1997  Michael Meissner  <meissner@cygnus.com>
 
        * sim-io.c (sim_io_{syscalls,getstring}): Delete.  No longer used.