Support for Quadram Quadcolor I / I + II

src/include/86box/vid_quadcolor.h

@@ -0,0 +1,93 @@
+/*
+ * 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.
+ *
+ *          Quadram Quadcolor I / I+II emulation
+ *
+ * Authors:  Benedikt Freisen, <https://pcem-emulator.co.uk/>
+ *           Jasmine Iwanek, <jriwanek@gmail.com>
+ *
+ *          Copyright 2024      Benedikt Freisen.
+            Copyright 2025      Jasmine Iwanek.
+ */
+
+#ifndef _VID_QUADCOLOR_H_
+#define _VID_QUADCOLOR_H_
+
+typedef struct quadcolor_t {
+    mem_mapping_t mapping;
+    mem_mapping_t mapping_2;
+
+    int     crtcreg;
+#if 0
+    uint8_t crtc[CGA_NUM_CRTC_REGS];
+#else
+    uint8_t crtc[32];
+#endif
+    uint8_t cgastat;
+
+    uint8_t cgamode;
+    uint8_t cgacol;
+
+    uint8_t lp_strobe;
+
+    uint8_t  quadcolor_ctrl;
+    uint8_t  quadcolor_2_oe;
+    uint16_t page_offset;
+
+    int      fontbase;
+    int      linepos;
+    int      displine;
+    int      scanline;
+    int      vc;
+    int      cgadispon;
+    int      cursorvisible;             // Determines if the cursor is visible FOR THE CURRENT SCANLINE.
+    int      cursoron;
+    int      cgablink;
+    int      vsynctime;
+    int      vadj;
+    uint16_t memaddr;
+    uint16_t memaddr_backup;
+    int      oddeven;
+
+    int      qc2idx;
+    uint8_t  qc2mask;
+
+    uint64_t   dispontime;
+    uint64_t   dispofftime;
+    pc_timer_t timer;
+
+    int firstline;
+    int lastline;
+
+    int drawcursor;
+
+    int fullchange;
+
+    uint8_t *vram;
+    uint8_t *vram_2;
+
+    uint8_t charbuffer[256];
+
+    int revision;
+    int composite;
+    int rgb_type;
+    int double_type;
+
+    int has_2nd_charset;
+    int has_quadcolor_2;
+} quadcolor_t;
+
+void    quadcolor_init(quadcolor_t *quadcolor);
+void    quadcolor_out(uint16_t addr, uint8_t val, void *priv);
+uint8_t quadcolor_in(uint16_t addr, void *priv);
+void    quadcolor_write(uint32_t addr, uint8_t val, void *priv);
+uint8_t quadcolor_read(uint32_t addr, void *priv);
+void    quadcolor_recalctimings(quadcolor_t *quadcolor);
+void    quadcolor_poll(void *priv);
+
+#endif /* _VID_QUADCOLOR_H_ */

src/include/86box/video.h

@@ -491,6 +491,9 @@ extern const device_t paradise_wd90c11_megapc_device;
 extern const device_t paradise_wd90c11_device;
 extern const device_t paradise_wd90c30_device;
 
+/* Quadram Quadcolor I / I + II */
+extern const device_t quadcolor_device;
+
 /* Realtek (S)VGA */
 extern const device_t realtek_rtg3105_device;
 extern const device_t realtek_rtg3106_device;