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authorJose Antonio Ortega Ruiz <jao@gnu.org>2004-06-06 22:58:58 +0000
committerJose Antonio Ortega Ruiz <jao@gnu.org>2004-06-06 22:58:58 +0000
commit636788d8057c94e7a68a914559aedf15c325e27d (patch)
treec3bc1e0778787afa2b4d65fc3bc4cdd2e48d8e35 /mixlib/mix_vm.h
parentb41b09e33d48ec4374284015ca25ca0135f9a934 (diff)
downloadmdk-636788d8057c94e7a68a914559aedf15c325e27d.tar.gz
mdk-636788d8057c94e7a68a914559aedf15c325e27d.tar.bz2
correct error tracking and reporting.
Diffstat (limited to 'mixlib/mix_vm.h')
-rw-r--r--mixlib/mix_vm.h45
1 files changed, 33 insertions, 12 deletions
diff --git a/mixlib/mix_vm.h b/mixlib/mix_vm.h
index b7412bf..005bfc2 100644
--- a/mixlib/mix_vm.h
+++ b/mixlib/mix_vm.h
@@ -1,22 +1,22 @@
/* ---------------------- mix_vm.h :
* Types and functions implementing the MIX virtual machine
* ------------------------------------------------------------------
- * Copyright (C) 2000, 2001 Free Software Foundation, Inc.
- *
+ * Copyright (C) 2000, 2001, 2004 Free Software Foundation, Inc.
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
+ *
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
+ *
*/
@@ -55,7 +55,6 @@ mix_vm_connect_device (mix_vm_t *vm, mix_device_t *device);
extern mix_device_t *
mix_vm_get_device (const mix_vm_t *vm, mix_device_type_t dev);
-
/* install a device factory for automatic connection */
typedef mix_device_t * (* mix_device_factory_t) (mix_device_type_t device);
extern void
@@ -82,19 +81,18 @@ mix_vm_get_rJ(const mix_vm_t *vm);
extern mix_short_t
mix_vm_get_rI(const mix_vm_t *vm, guint idx);
-extern void
+extern void
mix_vm_set_rA(mix_vm_t *vm, mix_word_t value);
extern void
mix_vm_set_rX(mix_vm_t *vm, mix_word_t value);
-extern void
+extern void
mix_vm_set_rJ(mix_vm_t *vm, mix_short_t value);
-extern void
+extern void
mix_vm_set_rI(mix_vm_t *vm, guint idx, mix_short_t value);
-
/* Access to the comparison flag and overflow toggle */
extern mix_cmpflag_t
mix_vm_get_cmpflag(const mix_vm_t *vm);
@@ -125,7 +123,7 @@ mix_vm_set_addr_contents(mix_vm_t *vm, mix_address_t addr, mix_word_t value);
extern gboolean /* TRUE if success */
mix_vm_exec_ins(mix_vm_t *vm, const mix_ins_t *ins);
-/* Load a code file into memory (-name- does not need the default extension)
+/* Load a code file into memory (-name- does not need the default extension)
* resetting the vm's state
*/
extern gboolean
@@ -140,7 +138,7 @@ extern const mix_symbol_table_t *
mix_vm_get_symbol_table (const mix_vm_t *vm);
/* Get current program counter */
-extern mix_address_t
+extern mix_address_t
mix_vm_get_prog_count (const mix_vm_t *vm);
/* Get the source line number for a given address */
@@ -163,6 +161,28 @@ typedef enum {
MIX_VM_EMPTY /* no program loaded */
} mix_vm_status_t;
+/* execution errors */
+typedef enum {
+ MIX_VM_ERROR_NONE, /* no error */
+ MIX_VM_ERROR_BAD_ACCESS, /* bad memory address */
+ MIX_VM_ERROR_BAD_DEVICE_NO, /* bad device number */
+ MIX_VM_ERROR_BAD_FSPEC, /* invalid fspec */
+ MIX_VM_ERROR_BAD_M, /* invalid M-value */
+ MIX_VM_ERROR_DEV_CTL, /* error accessing device for ioctl */
+ MIX_VM_ERROR_DEV_READ, /* error accessing device for reading */
+ MIX_VM_ERROR_DEV_WRITE, /* error accessing device for writing */
+ MIX_VM_ERROR_UNEXPECTED /* unexpected error */
+} mix_vm_error_t;
+
+extern mix_vm_error_t
+mix_vm_get_last_error (const mix_vm_t *vm);
+
+extern const gchar *
+mix_vm_get_last_error_string (const mix_vm_t *vm);
+
+extern const gchar *
+mix_vm_get_error_string (mix_vm_error_t code);
+
/* run until next breakpoint or end of execution */
extern mix_vm_status_t
mix_vm_run (mix_vm_t *vm);
@@ -190,6 +210,7 @@ enum {
MIX_VM_BP_OK = 0 /* success */
};
+
extern gint /* if >0 the line no. of the break point */
mix_vm_set_breakpoint (mix_vm_t *vm, guint lineno);