116 lines
4.0 KiB
Plaintext
116 lines
4.0 KiB
Plaintext
----------------------------------------------------------------------
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Patch name: patch.example-override-ask
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Author: Bryce Denney
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Date: Mon Sep 23 13:00:53 EDT 2002
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Status: Demo
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Detailed description:
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This patch shows how to create your own siminterface callback function.
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It is not intended to be checked in anytime, only to serve as an example
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of how to use the siminterface.
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Patch updated for current SVN. (Volker Ruppert, Apr 15, 2012)
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Patch was created with:
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diff -u
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Apply patch to what version:
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svn checked out on DATE
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Instructions:
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To patch, go to main bochs directory.
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Type "patch -p0 < THIS_PATCH_FILE".
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----------------------------------------------------------------------
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diff -urN ../bochs/config.h.in ./config.h.in
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--- ../bochs/config.h.in 2012-01-26 17:34:41.603286662 +0100
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+++ ./config.h.in 2012-04-15 14:29:36.529504219 +0200
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@@ -858,6 +858,9 @@
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// I/O Interface to debugger
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#define BX_SUPPORT_IODEBUG 0
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+// Override ask dialog (demo)
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+#define BX_OVERRIDE_ASK_EXAMPLE 1
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+
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#ifdef WIN32
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#define BX_FLOPPY0_NAME "Floppy Disk A:"
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#define BX_FLOPPY1_NAME "Floppy Disk B:"
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diff -urN ../bochs/gui/textconfig.cc ./gui/textconfig.cc
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--- ../bochs/gui/textconfig.cc 2012-04-06 15:15:28.094038820 +0200
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+++ ./gui/textconfig.cc 2012-04-15 14:31:30.538122593 +0200
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@@ -1075,6 +1075,10 @@
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{
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case CI_START:
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bx_config_interface_init();
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+#if BX_OVERRIDE_ASK_EXAMPLE
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+ extern void override_ask_init();
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+ override_ask_init();
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+#endif
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if (SIM->get_param_enum(BXPN_BOCHS_START)->get() == BX_QUICK_START)
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bx_config_interface(BX_CI_START_SIMULATION);
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else {
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diff -urN ../bochs/Makefile.in ./Makefile.in
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--- ../bochs/Makefile.in 2012-04-11 18:52:41.715215121 +0200
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+++ ./Makefile.in 2012-04-15 14:29:36.530504215 +0200
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@@ -141,6 +141,7 @@
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osdep.o \
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plugin.o \
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crc.o \
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+ overrideask.o \
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@EXTRA_BX_OBJS@
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EXTERN_ENVIRONMENT_OBJS = \
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diff -urN ../bochs/overrideask.cc ./overrideask.cc
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--- ../bochs/overrideask.cc 1970-01-01 01:00:00.000000000 +0100
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+++ ./overrideask.cc 2012-04-15 14:29:36.531504211 +0200
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@@ -0,0 +1,52 @@
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+#include <stdio.h>
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+#include <assert.h>
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+#include "config.h"
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+#include "osdep.h"
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+#include "gui/siminterface.h"
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+
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+bxevent_handler old_callback = NULL;
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+void *old_callback_arg = NULL;
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+
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+BxEvent *
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+override_ask_callback (void *unused, BxEvent *event)
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+{
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+ int n;
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+ int level;
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+ fprintf (stderr, "override_ask_callback\n");
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+ event->retcode = -1;
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+ switch (event->type)
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+ {
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+ case BX_SYNC_EVT_LOG_ASK:
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+ level = event->u.logmsg.level;
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+ fprintf (stderr, "============ override_ask_callback was called ==========================\n");
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+ fprintf (stderr, "Event type: %s\n", SIM->get_log_level_name (level));
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+ fprintf (stderr, "Device: %s\n", event->u.logmsg.prefix);
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+ fprintf (stderr, "Message: %s\n\n", event->u.logmsg.msg);
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+ // note: 4 only available if BX_DEBUGGER=1. ideally, don't show it
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+ fprintf (stderr, "What should I do? (0=continue, 1=alwayscont, 2=die, 3=abort, 4=debug) ");
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+ while (scanf ("%d", &n) != 1 || (n<0 && n>4)) {
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+ fprintf (stderr, "Enter 0-4 only.\n");
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+ }
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+ event->retcode = n;
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+ fprintf (stderr, "============ override_ask_callback is done =============================\n");
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+ return event;
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+ case BX_SYNC_EVT_TICK: // called periodically by siminterface.
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+ case BX_SYNC_EVT_ASK_PARAM: // called if simulator needs to know value of a param.
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+ case BX_ASYNC_EVT_REFRESH: // called when some bx_param_c parameters have changed.
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+ // fall into default case
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+ default:
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+ return (*old_callback)(old_callback_arg, event);
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+ }
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+}
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+
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+// called from textconfig.cc
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+void override_ask_init ()
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+{
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+ fprintf (stderr, "override_ask_init");
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+ // this should be called after the configuration interface has had a
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+ // chance to install its own callback. Otherwise, overrideask will not
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+ // override anything.
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+ SIM->get_notify_callback (&old_callback, &old_callback_arg);
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+ assert (old_callback != NULL);
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+ SIM->set_notify_callback (override_ask_callback, NULL);
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+}
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