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Diffstat (limited to 'src/mame/video/exidy440.c')
-rw-r--r-- | src/mame/video/exidy440.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/mame/video/exidy440.c b/src/mame/video/exidy440.c index 7ab7f7a4e63..0602777ef7b 100644 --- a/src/mame/video/exidy440.c +++ b/src/mame/video/exidy440.c @@ -448,11 +448,11 @@ static VIDEO_UPDATE( exidy440 ) int beamy = ((input_port_5_r(machine, 0) & 0xff) * (VBSTART - VBEND)) >> 8; /* The timing of this FIRQ is very important. The games look for an FIRQ - and then wait about 650 cycles, clear the old FIRQ, and wait a - very short period of time (~130 cycles) for another one to come in. - From this, it appears that they are expecting to get beams over - a 12 scanline period, and trying to pick roughly the middle one. - This is how it is implemented. */ + and then wait about 650 cycles, clear the old FIRQ, and wait a + very short period of time (~130 cycles) for another one to come in. + From this, it appears that they are expecting to get beams over + a 12 scanline period, and trying to pick roughly the middle one. + This is how it is implemented. */ attoseconds_t increment = attotime_to_attoseconds(video_screen_get_scan_period(0)); attotime time = attotime_sub(video_screen_get_time_until_pos(0, beamy, beamx), attotime_make(0, increment * 6)); for (i = 0; i <= 12; i++) |