Prepare the structure for upcoming actual i8080 emulation (#16)

src/cpu/8080.c

@@ -0,0 +1,20 @@
+/*
+ * 86Box	A hypervisor and IBM PC system emulator that specializes in
+ *		running old operating systems and software designed for IBM
+ *		PC systems and compatibles from 1981 through fairly recent
+ *		system designs based on the PCI bus.
+ *
+ *		This file is part of the 86Box distribution.
+ *
+ *		8080 CPU emulation.
+ *
+ * Authors:	Cacodemon345
+ *
+ *		Copyright 2022 Cacodemon345
+ */
+
+
+#include <stdint.h>
+#include <86box/i8080.h>
+
+/* Actually implement i8080 emulation. */

src/cpu/CMakeLists.txt

@@ -14,7 +14,7 @@
 #
 
 add_library(cpu OBJECT cpu.c cpu_table.c fpu.c x86.c 808x.c 386.c 386_common.c
-    386_dynarec.c x86seg.c x87.c x87_timings.c)
+    386_dynarec.c x86seg.c x87.c x87_timings.c 8080.c)
 
 if(AMD_K5)
     target_compile_definitions(cpu PRIVATE USE_AMD_K5)

src/include/86box/i8080.h

@@ -0,0 +1,40 @@
+/*
+ * 86Box	A hypervisor and IBM PC system emulator that specializes in
+ *		running old operating systems and software designed for IBM
+ *		PC systems and compatibles from 1981 through fairly recent
+ *		system designs based on the PCI bus.
+ *
+ *		This file is part of the 86Box distribution.
+ *
+ *		8080 CPU emulation (header).
+ *
+ * Authors:	Cacodemon345
+ *
+ *		Copyright 2022 Cacodemon345
+ */
+
+#include <stdint.h>
+
+typedef struct i8080
+{
+    union { 
+        uint16_t af; /* Intended in case we also go for μPD9002 emulation, which also has a Z80 emulation mode. */
+        uint8_t a, flags;
+    };
+    union
+    {
+        uint16_t bc;
+        uint8_t b, c;
+    };
+    union
+    {
+        uint16_t de;
+        uint8_t d, e;
+    };
+    union
+    {
+        uint16_t hl;
+        uint8_t h, l;
+    };
+    uint16_t pc, sp;
+} i8080;