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Fixes AY and random port input for the MSX.

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This commit is contained in:
Thomas Harte 2017-12-03 22:25:18 -05:00
parent a473338abe
commit e3a5218e78
1 changed files with 9 additions and 5 deletions
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14
Machines/MSX/MSX.cpp
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@ -25,11 +25,11 @@ namespace MSX {
struct AYPortHandler: public GI::AY38910::PortHandler {
void set_port_output(bool port_b, uint8_t value) {
printf("AY port %c output: %02x\n", port_b ? 'b' : 'a', value);
// printf("AY port %c output: %02x\n", port_b ? 'b' : 'a', value);
}
uint8_t get_port_input(bool port_b) {
printf("AY port %c input\n", port_b ? 'b' : 'a');
// printf("AY port %c input\n", port_b ? 'b' : 'a');
return 0xff;
}
};
@ -130,14 +130,18 @@ class ConcreteMachine:
case 0xa2:
ay_->run_for(time_since_ay_update_.divide_cycles(Cycles(2)));
ay_->set_control_lines(static_cast<GI::AY38910::ControlLines>(GI::AY38910::BDIR | GI::AY38910::BC1));
ay_->set_data_input(*cycle.value);
ay_->set_control_lines(static_cast<GI::AY38910::ControlLines>(GI::AY38910::BC2 | GI::AY38910::BC1));
*cycle.value = ay_->get_data_output();
break;
case 0xa8: case 0xa9:
case 0xaa: case 0xab:
*cycle.value = i8255_.get_register(address);
break;
default:
*cycle.value = 0xff;
break;
}
break;
@ -260,7 +264,7 @@ class ConcreteMachine:
// b4 cassette motor relay
machine_.set_keyboard_line(value & 0xf);
break;
default: break;
default: printf("What what what what?\n"); break;
}
}