From abce83ad340fad73f1afc8ffa6336179d916d629 Mon Sep 17 00:00:00 2001
From: Jasmine Iwanek <jasmine@iwanek.co.uk>
Date: Wed, 26 Jan 2022 23:24:19 -0500
Subject: [PATCH] Initial Boca Research BocaRAM/AT support

---
 CMakeLists.txt            |  1 +
 src/device/CMakeLists.txt |  6 ++-
 src/device/isamem.c       | 92 +++++++++++++++++++++++++++++++++++++++
 src/win/Makefile.mingw    | 10 +++++
 4 files changed, 108 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 98ab7c3fd..e24d56111 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -130,6 +130,7 @@ cmake_dependent_option(VNC            "VNC renderer"
 cmake_dependent_option(XL24           "ATI VGA Wonder XL24 (ATI-28800-6)"           ON      "DEV_BRANCH"    OFF)
 cmake_dependent_option(ISAMEM_RAMPAGE "AST Rampage"                                 ON      "DEV_BRANCH"    OFF)
 cmake_dependent_option(ISAMEM_IAB     "Intel Above Board"                           ON      "DEV_BRANCH"    OFF)
+cmake_dependent_option(ISAMEM_BRAT    "BocaRAM/AT"                                  ON      "DEV_BRANCH"    OFF)
 
 # Determine the build type
 set(RELEASE_BUILD   OFF)
diff --git a/src/device/CMakeLists.txt b/src/device/CMakeLists.txt
index 2b7b34c7b..5d7d2d752 100644
--- a/src/device/CMakeLists.txt
+++ b/src/device/CMakeLists.txt
@@ -29,4 +29,8 @@ endif()
 
 if(ISAMEM_IAB)
     target_compile_definitions(dev PRIVATE USE_ISAMEM_IAB)
-endif()
\ No newline at end of file
+endif()
+
+if(ISAMEM_BRAT)
+    target_compile_definitions(dev PRIVATE USE_ISAMEM_BRAT)
+endif()
diff --git a/src/device/isamem.c b/src/device/isamem.c
index b16d5d247..54d78eb24 100644
--- a/src/device/isamem.c
+++ b/src/device/isamem.c
@@ -94,6 +94,7 @@
 #define ISAMEM_EV159_CARD 10
 #define ISAMEM_RAMPAGEXT_CARD 11
 #define ISAMEM_ABOVEBOARD_CARD 12
+#define ISAMEM_BRAT_CARD 13
 
 #define ISAMEM_DEBUG	0
 
@@ -451,6 +452,7 @@ dev->frame_addr = 0xE0000;
 
 	case ISAMEM_RAMPAGEXT_CARD: /* AST RAMpage/XT */
 	case ISAMEM_ABOVEBOARD_CARD: /* Intel AboveBoard */
+	case ISAMEM_BRAT_CARD: /* BocaRAM/AT */
 		dev->base_addr = device_get_config_hex16("base");
 		dev->total_size = device_get_config_int("size");
 		dev->start_addr = device_get_config_int("start");
@@ -984,6 +986,96 @@ static const device_t ev159_device = {
 };
 
 
+#ifdef USE_ISAMEM_BRAT
+static const device_config_t brat_config[] =
+{
+	{
+		"base", "Address", CONFIG_HEX16, "", 0x0258, "", { 0 },
+		{
+			{
+				"208H", 0x0208
+			},
+			{
+				"218H", 0x0218
+			},
+			{
+				"258H", 0x0258
+			},
+			{
+				"268H", 0x0268
+			},
+			{
+				""
+			}
+		},
+	},
+	{
+		"frame", "Frame Address", CONFIG_HEX20, "", 0, "", { 0 },
+		{
+			{
+				"Disabled", 0x00000
+			},
+			{
+				"D000H", 0xD0000
+			},
+			{
+				"E000H", 0xE0000
+			},
+			{
+				""
+			}
+		},
+	},
+	{
+		"width", "I/O Width", CONFIG_SELECTION, "", 8, "", { 0 },
+		{
+			{
+				"8-bit", 8
+			},
+			{
+				"16-bit", 16
+			},
+			{
+				""
+			}
+		},
+	},
+	{
+		"speed", "Transfer Speed", CONFIG_SELECTION, "", 0, "", { 0 },
+		{
+			{
+				"Standard", 0
+			},
+			{
+				"High-Speed", 1
+			},
+			{
+				""
+			}
+		}
+	},
+	{
+		"size", "Memory Size", CONFIG_SPINNER, "", 128,
+		"",
+		{ 0, 8192, 512 },
+		{ 0 }
+	},
+	{
+		"", "", -1
+	}
+};
+
+static const device_t brat_device = {
+    "BocaRAM/AT",
+    DEVICE_ISA,
+    ISAMEM_BRAT_CARD,
+    isamem_init, isamem_close, NULL,
+    { NULL }, NULL, NULL,
+    brat_config
+};
+#endif
+
+
 #ifdef USE_ISAMEM_RAMPAGE
 static const device_config_t rampage_config[] =
 {
diff --git a/src/win/Makefile.mingw b/src/win/Makefile.mingw
index 9ee608c4f..cae57102b 100644
--- a/src/win/Makefile.mingw
+++ b/src/win/Makefile.mingw
@@ -75,6 +75,9 @@ ifeq ($(DEV_BUILD), y)
  ifndef ISAMEM_IAB
   ISAMEM_IAB := y
  endif
+ ifndef ISAMEM_BRAT
+  ISAMEM_BRAT := y
+ endif
  ifndef OLIVETTI
   OLIVETTI	:= y
  endif
@@ -130,6 +133,9 @@ else
  ifndef ISAMEM_IAB
   ISAMEM_IAB := n
  endif
+ ifndef ISAMEM_BRAT
+  ISAMEM_BRAT := n
+ endif
  ifndef OLIVETTI
   OLIVETTI	:= n
  endif
@@ -470,6 +476,10 @@ ifeq ($(ISAMEM_IAB), y)
 OPTS        += -DUSE_ISAMEM_IAB
 endif
 
+ifeq ($(ISAMEM_BRAT), y)
+OPTS        += -DUSE_ISAMEM_BRAT
+endif
+
 ifeq ($(OLIVETTI), y)
 OPTS		+= -DUSE_OLIVETTI
 DEVBROBJ	+= olivetti_eva.o