From 13f5a2794fa02d84b732b59005c64c2dc2d328eb Mon Sep 17 00:00:00 2001
From: Cacodemon345 <wahil1976@outlook.com>
Date: Fri, 9 Sep 2022 02:28:51 +0600
Subject: [PATCH] Prepare the structure for upcoming actual i8080 emulation
 (#16)

---
 src/cpu/8080.c            | 20 ++++++++++++++++++++
 src/cpu/CMakeLists.txt    |  2 +-
 src/include/86box/i8080.h | 40 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 61 insertions(+), 1 deletion(-)
 create mode 100644 src/cpu/8080.c
 create mode 100644 src/include/86box/i8080.h

diff --git a/src/cpu/8080.c b/src/cpu/8080.c
new file mode 100644
index 000000000..28af66974
--- /dev/null
+++ b/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. */
diff --git a/src/cpu/CMakeLists.txt b/src/cpu/CMakeLists.txt
index 20452bf88..c91bcbe78 100644
--- a/src/cpu/CMakeLists.txt
+++ b/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)
diff --git a/src/include/86box/i8080.h b/src/include/86box/i8080.h
new file mode 100644
index 000000000..a7adae201
--- /dev/null
+++ b/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;
\ No newline at end of file