Start work on refactoring some of the backend code to allow more sharing between M68K and Z80 cores and possibly also between x86 and the ARM backend when it exists

2 files changed, 25 insertions, 8 deletions

diff --git a/m68k_to_x86.c b/m68k_to_x86.c
index b897540..c0a0034 100644
--- a/m68k_to_x86.c
+++ b/m68k_to_x86.c
@@ -4345,13 +4345,6 @@ void m68k_reset(m68k_context * context)
 	start_68k_context(context, address);
 }
 
-typedef enum {
-	READ_16,
-	READ_8,
-	WRITE_16,
-	WRITE_8
-} ftype;
-
 uint8_t * gen_mem_fun(x86_68k_options * opts, memmap_chunk * memmap, uint32_t num_chunks, ftype fun_type)
 {
 	uint8_t * dst = opts->cur_code;
diff --git a/x86_backend.h b/x86_backend.h
index 57c1e21..c556800 100644
--- a/x86_backend.h
+++ b/x86_backend.h
@@ -1,6 +1,6 @@
 /*
  Copyright 2013 Michael Pavone
- This file is part of BlastEm. 
+ This file is part of BlastEm.
  BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
 */
 #ifndef X86_BACKEND_H_
@@ -30,6 +30,30 @@ typedef struct deferred_addr {
 	uint32_t             address;
 } deferred_addr;
 
+typedef enum {
+	READ_16,
+	READ_8,
+	WRITE_16,
+	WRITE_8
+} ftype;
+
+typedef struct {
+	uint32_t flags;
+	native_map_slot *native_code_map;
+	deferred_addr   *deferred;
+	uint8_t         *cur_code;
+	uint8_t         *code_end;
+	uint8_t         **ram_inst_sizes;
+	FILE            *address_log;
+	uint8_t			*save_context;
+	uint8_t			*load_context;
+	uint8_t         *handle_cycle_limit;
+	uint8_t         *handle_cycle_limit_int;
+	uint8_t			context_reg;
+	uint8_t			scratch1;
+	uint8_t			scratch2;
+} cpu_options;
+
 
 #define MMAP_READ      0x01
 #define MMAP_WRITE     0x02