9daf161aee
- Olivetti M19. - Olivetti M240. Implemented mainboard jumper settings for Olivetti M24 machine: - Like on a real M24, onboard video card can be disabled, and other video cards can be installed. - Renamed m_olivetti_m24.c to m_xt_olivetti.c, as it handles all XT-class Olivetti machines. Decoupled Olivetti OGC (640x400 extended CGA) from M24 machine code: - OGC exists both as 16-bit proprietary card and 8-bit ISA card (GO708). - Implemented underlined text handling in 80x25 character mode. - Like Compaq CGA, replaced code portions common to CGA with calls to vid_cga.c.
49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/*
|
|
* 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.
|
|
*
|
|
* Emulation of the Olivetti OGC 8-bit ISA (GO708) and
|
|
* M21/M24/M28 16-bit bus (GO317/318/380/709) video cards.
|
|
*
|
|
*
|
|
*
|
|
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
|
|
* Miran Grca, <mgrca8@gmail.com>
|
|
* Fred N. van Kempen, <decwiz@yahoo.com>
|
|
* EngiNerd, <webmaster.crrc@yahoo.it>
|
|
*
|
|
* Copyright 2008-2019 Sarah Walker.
|
|
* Copyright 2016-2019 Miran Grca.
|
|
* Copyright 2017-2019 Fred N. van Kempen.
|
|
* Copyright 2020 EngiNerd.
|
|
*/
|
|
|
|
typedef struct ogc_t {
|
|
cga_t cga;
|
|
/* unused in OGC, required for M19 video card structure idiom */
|
|
uint8_t ctrl_3dd;
|
|
uint8_t ctrl_3de;
|
|
uint32_t base;
|
|
int lineff;
|
|
int mono_display;
|
|
} ogc_t;
|
|
|
|
void ogc_recalctimings(ogc_t *ogc);
|
|
void ogc_out(uint16_t addr, uint8_t val, void *priv);
|
|
uint8_t ogc_in(uint16_t addr, void *priv);
|
|
void ogc_write(uint32_t addr, uint8_t val, void *priv);
|
|
uint8_t ogc_read(uint32_t addr, void *priv);
|
|
void ogc_poll(void *priv);
|
|
void ogc_close(void *priv);
|
|
void ogc_mdaattr_rebuild();
|
|
|
|
|
|
#ifdef EMU_DEVICE_H
|
|
extern const device_config_t ogc_config[];
|
|
extern const device_t ogc_device;
|
|
#endif
|