From 094b0c007cab885eadc29f0c17dc1f4c7c025129 Mon Sep 17 00:00:00 2001 From: kub Date: Sun, 2 Feb 2025 23:09:23 +0100 Subject: [PATCH] sms, small improvement for tape write --- pico/sms.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/pico/sms.c b/pico/sms.c index c70b8b04..83f021db 100644 --- a/pico/sms.c +++ b/pico/sms.c @@ -356,12 +356,13 @@ static void tape_write(int cycle, int data) if (pt->isbit) { pt->poll_count += (data >= 0); if (data >= 0 && pt->poll_cycles >= pt->cycles_sample*15/16) { - // determine bit, either 2400Hz, or 1200Hz, or bust + // determine bit, duration ~1/1200s, either 2400Hz, or 1200Hz, or bust switch (pt->poll_count) { case 4: pt->bitsample = '1'; break; // 2*2400Hz case 2: pt->bitsample = '0'; break; // 1*1200Hz default: pt->bitsample = ' '; break; // ignore everything else } + if (pt->poll_cycles >= pt->cycles_sample*17/16) pt->bitsample = ' '; if (pt->poll_cycles < OSC_NTSC/15*2) { samples = ((u64)pt->poll_cycles * pt->cycles_mult + 0x80000000LL) >> 32; -- 2.39.5