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authorMike Frysinger <vapier@gentoo.org>2016-01-21 21:00:25 -0500
committerMike Frysinger <vapier@gentoo.org>2021-05-17 00:42:55 -0400
commit383861bd08c47a160f54351e6b8519140b9aad8e (patch)
treedc43aadd66fbcc1f7cf18d8bebd7b14740086e48 /sim/m68hc11
parent92bc001e1f91390b8e009c29e75f4e8b9be02d76 (diff)
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sim: invert sim_state storage
Currently all ports have to declare sim_state themselves in their sim-main.h and then embed the common sim_state_base & sim_cpu in it. This dynamic makes it impossible to share common object code among multiple ports because the core data structure is always different. Let's invert this relationship: common code declares sim_state, and if the port actually needs state on a per-instance basis, it can use the new arch_data field for it. Most ports don't actually use it, so they don't need to declare anything at all. This is the first in a series of changes: it adds a define to select between the old & new layouts, then converts all the ports that don't need custom state over to the new layout.
Diffstat (limited to 'sim/m68hc11')
-rw-r--r--sim/m68hc11/ChangeLog5
-rw-r--r--sim/m68hc11/sim-main.h9
2 files changed, 7 insertions, 7 deletions
diff --git a/sim/m68hc11/ChangeLog b/sim/m68hc11/ChangeLog
index a070cdd..c8d1177 100644
--- a/sim/m68hc11/ChangeLog
+++ b/sim/m68hc11/ChangeLog
@@ -1,3 +1,8 @@
+2021-05-17 Mike Frysinger <vapier@gentoo.org>
+
+ * sim-main.h (SIM_HAVE_COMMON_SIM_STATE): Define.
+ (struct sim_state): Delete.
+
2021-05-16 Mike Frysinger <vapier@gentoo.org>
* dv-m68hc11.c, dv-m68hc11eepr.c, dv-m68hc11sio.c, dv-m68hc11spi.c,
diff --git a/sim/m68hc11/sim-main.h b/sim/m68hc11/sim-main.h
index 9b461ff..d72ede1 100644
--- a/sim/m68hc11/sim-main.h
+++ b/sim/m68hc11/sim-main.h
@@ -20,6 +20,8 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef _SIM_MAIN_H
#define _SIM_MAIN_H
+#define SIM_HAVE_COMMON_SIM_STATE
+
#include "sim-basics.h"
#include "sim-signal.h"
#include "sim-base.h"
@@ -560,13 +562,6 @@ extern int m68hc11cpu_clear_oscillator (SIM_DESC sd, const char *port);
extern void m68hc11cpu_set_port (struct hw *me, sim_cpu *cpu,
unsigned addr, uint8 val);
-/* The current state of the processor; registers, memory, etc. */
-
-struct sim_state {
- sim_cpu *cpu[MAX_NR_PROCESSORS];
- sim_state_base base;
-};
-
extern void sim_board_reset (SIM_DESC sd);
#define PRINT_TIME 0x01