summaryrefslogtreecommitdiffstatshomepage
path: root/src/emu/video/mc6847.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/emu/video/mc6847.h')
-rw-r--r--src/emu/video/mc6847.h21
1 files changed, 13 insertions, 8 deletions
diff --git a/src/emu/video/mc6847.h b/src/emu/video/mc6847.h
index b8251a1f89d..63f84873194 100644
--- a/src/emu/video/mc6847.h
+++ b/src/emu/video/mc6847.h
@@ -37,6 +37,14 @@
MCFG_SCREEN_SIZE(320, 243) \
MCFG_SCREEN_VISIBLE_AREA(0, 320-1, 1, 241-1) \
MCFG_SCREEN_VBLANK_TIME(0)
+
+#define MCFG_MC6847_HSYNC_CALLBACK(_write) \
+ devcb = &mc6847_friend_device::set_hsync_wr_callback(*device, DEVCB2_##_write);
+
+#define MCFG_MC6847_FSYNC_CALLBACK(_write) \
+ devcb = &mc6847_friend_device::set_fsync_wr_callback(*device, DEVCB2_##_write);
+
+
/* interface */
struct mc6847_interface
{
@@ -46,12 +54,6 @@ struct mc6847_interface
/* if specified, this gets called whenever reading a byte (offs_t ~0 specifies DA* entering the tristate mode) */
devcb_read8 m_input_func;
- /* if specified, this gets called for every change of the HS pin (pin 38) */
- devcb_write_line m_out_hsync_func;
-
- /* if specified, this gets called for every change of the FS pin (pin 37) */
- devcb_write_line m_out_fsync_func;
-
/* mode control lines input */
devcb_read_line m_in_ag_func;
devcb_read_line m_in_gm2_func;
@@ -86,6 +88,9 @@ public:
bool hs_r(void) { return m_horizontal_sync; }
bool fs_r(void) { return m_field_sync; }
+ template<class _Object> static devcb2_base &set_hsync_wr_callback(device_t &device, _Object object) { return downcast<mc6847_friend_device &>(device).m_write_hsync.set_callback(object); }
+ template<class _Object> static devcb2_base &set_fsync_wr_callback(device_t &device, _Object object) { return downcast<mc6847_friend_device &>(device).m_write_fsync.set_callback(object); }
+
protected:
mc6847_friend_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock,
const UINT8 *fontdata, bool is_mc6847t1, double tpfs, int field_sync_falling_edge_scanline, bool supports_partial_body_scanlines, const char *shortname, const char *source);
@@ -266,8 +271,8 @@ protected:
};
// callbacks
- devcb_resolved_write_line m_res_out_hsync_func;
- devcb_resolved_write_line m_res_out_fsync_func;
+ devcb2_write_line m_write_hsync;
+ devcb2_write_line m_write_fsync;
// incidentals
character_map m_character_map;