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(MESS) vtech2 (Laser350/500/700): added cassette save/load

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This commit is contained in:
Robbbert 2014-03-24 10:14:14 +00:00
parent 87bd8e7e7f
commit 32e5a050b1
1 changed files with 4 additions and 10 deletions
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14
src/mess/machine/vtech2.c
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@ -187,7 +187,7 @@ WRITE8_MEMBER(vtech2_state::laser_bank_select_w)
************************************************/
int vtech2_state::mra_bank(int bank, int offs)
{
int level, data = 0xff;
UINT8 data = 0x7f;
/* Laser 500/700 only: keyboard rows A through D */
if( (offs & 0x00ff) == 0x00ff )
@ -246,16 +246,9 @@ int vtech2_state::mra_bank(int bank, int offs)
data &= ioport("ROW7")->read();
}
/* what's bit 7 good for? tape input maybe? */
level = m_cassette->input() * 65536.0;
if( level < m_level_old - 511 )
m_cassette_bit = 0x00;
if( level > m_level_old + 511 )
m_cassette_bit = 0x80;
m_level_old = level;
/* BIT 7 - tape input */
data &= ~m_cassette_bit;
// logerror("bank #%d keyboard_r [$%04X] $%02X\n", bank, offs, data);
data |= (m_cassette->input() > +0.02) ? 0x80 : 0;
return data;
}
@ -289,6 +282,7 @@ void vtech2_state::mwa_bank(int bank, int offs, int data)
m_speaker->level_w(data & 1);
m_laser_latch = data;
}
m_cassette->output( BIT(data, 2) ? -1.0 : +1.0);
break;
case 12: /* ext. ROM #1 */
case 13: /* ext. ROM #2 */