Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-05-18 19:49:35 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

Added helper macros for input lines tied to GND/Vcc.

Browse Source
This commit is contained in:
Curt Coder 2009-08-21 13:05:08 +00:00
parent b2dcbb3b68
commit fb98a61886
1 changed files with 19 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
src/emu/devcb.h
View File

@ -64,6 +64,8 @@
/* standard line or read/write handlers with the calling device passed */ /* standard line or read/write handlers with the calling device passed */
#define DEVCB_LINE(func) { DEVCB_TYPE_SELF, NULL, (func), NULL, NULL } #define DEVCB_LINE(func) { DEVCB_TYPE_SELF, NULL, (func), NULL, NULL }
#define DEVCB_LINE_GND { DEVCB_TYPE_SELF, NULL, devcb_line_gnd_r, NULL, NULL }
#define DEVCB_LINE_VCC { DEVCB_TYPE_SELF, NULL, devcb_line_vcc_r, NULL, NULL }
#define DEVCB_HANDLER(func) { DEVCB_TYPE_SELF, NULL, NULL, (func), NULL } #define DEVCB_HANDLER(func) { DEVCB_TYPE_SELF, NULL, NULL, (func), NULL }
/* line or read/write handlers for another device */ /* line or read/write handlers for another device */
@ -269,5 +271,22 @@ INLINE void devcb_call_write8(const devcb_resolved_write8 *resolved, offs_t offs
(*resolved->write)((const device_config *)resolved->target, offset, data); (*resolved->write)((const device_config *)resolved->target, offset, data);
} }
/*-------------------------------------------------
devcb_line_gnd_r - input tied to GND
-------------------------------------------------*/
INLINE READ_LINE_DEVICE_HANDLER( devcb_line_gnd_r )
{
return 0;
}
/*-------------------------------------------------
devcb_line_vcc_r - input tied to Vcc
-------------------------------------------------*/
INLINE READ_LINE_DEVICE_HANDLER( devcb_line_vcc_r )
{
return 1;
}
#endif /* __DEVCB_H__ */ #endif /* __DEVCB_H__ */