From 49e7850f5a163b18034ef94de794328d650ac33a Mon Sep 17 00:00:00 2001
From: mw308 <34479591+mw308@users.noreply.github.com>
Date: Fri, 7 Nov 2025 09:23:09 +0000
Subject: [PATCH] Add RM Accelerator as a BIOS option for the AX6BC

---
 src/machine/m_at_slot1.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/machine/m_at_slot1.c b/src/machine/m_at_slot1.c
index eb5c0e90b..0c777c349 100644
--- a/src/machine/m_at_slot1.c
+++ b/src/machine/m_at_slot1.c
@@ -593,6 +593,15 @@ static const device_config_t ax6bc_config[] = {
                 .size          = 262144,
                 .files         = { "roms/machines/ax6bc/ax6bc110.bin", "" }
             },
+            {
+                .name          = "RM Accelerator 350P2XB/450P3XB (BIOS R2.20)",
+                .internal_name = "ax6bc_rm",
+                .bios_type     = BIOS_NORMAL,
+                .files_no      = 1,
+                .local         = 0,
+                .size          = 262144,
+                .files         = { "roms/machines/ax6bc/ax6bc220.bin", "" }
+            },
             {
                 .name          = "Award Modular BIOS v4.60PGM - Revision R2.59",
                 .internal_name = "ax6bc",