Resent-From: orschied@rumms.uni-mannheim.de Date: Mon, 24 Aug 1998 09:57:54 +0200 From: Juergen Orschiedt To: l68k@rumms.uni-mannheim.de Subject: L68K: Patch 2.1.115 atasound.c Resent-Date: Mon, 24 Aug 1998 10:02:33 +0200 Resent-To: linux-m68k@lists.linux-m68k.org Sender: owner-linux-m68k@phil.uni-sb.de Was there a change in vt_ioctl(KDMKTONE, ...) between 101 and 115? minicom coredumps with a "Zero divide exception". Here's a workaround: --- linux-2.1.115.org/arch/m68k/atari/atasound.c Tue Jun 2 17:14:06 1998 +++ linux-2.1.115/arch/m68k/atari/atasound.c Mon Aug 24 00:07:18 1998 @@ -61,17 +61,21 @@ save_flags(flags); cli(); - /* Convert from frequency value to PSG period value (base - frequency 125 kHz). */ - period = PSG_FREQ / hz; - - if (period > 0xfff) period = 0xfff; /* Disable generator A in mixer control. */ sound_ym.rd_data_reg_sel = 7; tmp = sound_ym.rd_data_reg_sel; tmp |= 011; sound_ym.wd_data = tmp; + + if (hz) { + /* Convert from frequency value to PSG period value (base + frequency 125 kHz). */ + + period = PSG_FREQ / hz; + + if (period > 0xfff) period = 0xfff; + /* Set generator A frequency to hz. */ sound_ym.rd_data_reg_sel = 0; sound_ym.wd_data = period & 0xff; @@ -101,6 +105,6 @@ sound_ym.rd_data_reg_sel = 7; tmp &= ~1; sound_ym.wd_data = tmp; - + } restore_flags(flags); }