From a9a86cad7ddabac70075af78f57e9dd90f0abcdf Mon Sep 17 00:00:00 2001
From: Jasmine Iwanek <jasmine@iwanek.co.uk>
Date: Sat, 15 Jan 2022 18:57:29 -0500
Subject: [PATCH] ISARTC cleanups

---
 src/device/isartc.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/src/device/isartc.c b/src/device/isartc.c
index d587f9015..93ec69cfe 100644
--- a/src/device/isartc.c
+++ b/src/device/isartc.c
@@ -83,6 +83,10 @@
 #include <86box/isartc.h>
 
 
+#define ISARTC_EV170	0
+#define ISARTC_DTK		1
+#define ISARTC_P5PAK	2
+
 #define ISARTC_DEBUG	0
 
 
@@ -506,7 +510,7 @@ isartc_init(const device_t *info)
 
     /* Do per-board initialization. */
     switch(dev->board) {
-	case 0:		/* Everex EV-170 Magic I/O */
+	case ISARTC_EV170:		/* Everex EV-170 Magic I/O */
 		dev->flags |= FLAG_YEAR80;
 		dev->base_addr = device_get_config_hex16("base");
 		dev->base_addrsz = 32;
@@ -519,7 +523,7 @@ isartc_init(const device_t *info)
 		dev->year = MM67_AL_DOM;	/* year, NON STANDARD */
 		break;
 
-	case 1:		/* DTK PII-147 Hexa I/O Plus */
+	case ISARTC_DTK:		/* DTK PII-147 Hexa I/O Plus */
 		dev->flags |= FLAG_YEARBCD;
 		dev->base_addr = device_get_config_hex16("base");
 		dev->base_addrsz = 32;
@@ -531,7 +535,7 @@ isartc_init(const device_t *info)
 		dev->year = MM67_AL_HUNTEN;	/* year, NON STANDARD */
 		break;
 
-	case 2:		/* Paradise Systems 5PAK */
+	case ISARTC_P5PAK:		/* Paradise Systems 5PAK */
 		dev->flags |= FLAG_YEAR80;
 		dev->base_addr = 0x02c0;
 		dev->base_addrsz = 32;
@@ -627,7 +631,7 @@ static const device_config_t ev170_config[] = {
 static const device_t ev170_device = {
     "Everex EV-170 Magic I/O",
     DEVICE_ISA,
-    0,
+    ISARTC_EV170,
     isartc_init, isartc_close, NULL,
     { NULL }, NULL, NULL,
     ev170_config
@@ -657,7 +661,7 @@ static const device_config_t pii147_config[] = {
 static const device_t pii147_device = {
     "DTK PII-147 Hexa I/O Plus",
     DEVICE_ISA,
-    1,
+    ISARTC_DTK,
     isartc_init, isartc_close, NULL,
     { NULL }, NULL, NULL,
     pii147_config
@@ -693,7 +697,7 @@ static const device_config_t p5pak_config[] = {
 static const device_t p5pak_device = {
     "Paradise Systems 5-PAK",
     DEVICE_ISA,
-    2,
+    ISARTC_P5PAK,
     isartc_init, isartc_close, NULL,
     { NULL }, NULL, NULL,
     p5pak_config