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apple2js
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Better smartport behaviors

This commit is contained in:
Will Scullin 2021-07-10 11:44:10 -07:00
parent d70425461c
commit 45681d8e89
No known key found for this signature in database
GPG Key ID: 26DCD1042C6638CD
1 changed files with 43 additions and 8 deletions
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51
js/cards/smartport.ts
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@ -97,6 +97,16 @@ const ADDRESS_LO = 0x44;
const BLOCK_LO = 0x46;
// const BLOCK_HI = 0x47;
// const IO_ERROR = 0x27;
const NO_DEVICE_CONNECTED = 0x28;
const WRITE_PROTECTED = 0x2B;
const DEVICE_OFFLINE = 0x2F;
// const VOLUME_DIRECTORY_NOT_FOUND = 0x45;
// const NOT_A_PRODOS_DISK = 0x52;
// const VOLUME_CONTROL_BLOCK_FULL = 0x55;
// const BAD_BUFFER_ADDRESS = 0x56;
// const DUPLICATE_VOLUME_ONLINE = 0x57;
export default class SmartPort implements Card, MassStorage, Restorable<SmartPortState> {
private rom: rom;
@ -166,7 +176,7 @@ export default class SmartPort implements Card, MassStorage, Restorable<SmartPor
state.a = 0;
state.s &= ~flags.C;
} else {
state.a = 0x28;
state.a = NO_DEVICE_CONNECTED;
state.s |= flags.C;
}
}
@ -182,6 +192,8 @@ export default class SmartPort implements Card, MassStorage, Restorable<SmartPor
if (!this.disks[drive]?.blocks.length) {
debug('Drive', drive, 'is empty');
state.a = DEVICE_OFFLINE;
state.s |= flags.C;
return;
}
@ -193,7 +205,7 @@ export default class SmartPort implements Card, MassStorage, Restorable<SmartPor
}
state.a = 0;
state.s &= 0xfe;
state.s &= ~flags.C;
}
/*
@ -207,6 +219,15 @@ export default class SmartPort implements Card, MassStorage, Restorable<SmartPor
if (!this.disks[drive]?.blocks.length) {
debug('Drive', drive, 'is empty');
state.a = DEVICE_OFFLINE;
state.s |= flags.C;
return;
}
if (this.disks[drive].readOnly) {
debug('Drive', drive, 'is write protected');
state.a = WRITE_PROTECTED;
state.s |= flags.C;
return;
}
@ -217,7 +238,7 @@ export default class SmartPort implements Card, MassStorage, Restorable<SmartPor
buffer = buffer.inc(1);
}
state.a = 0;
state.s &= 0xfe;
state.s &= flags.C;
}
/*
@ -225,6 +246,20 @@ export default class SmartPort implements Card, MassStorage, Restorable<SmartPor
*/
formatDevice(state: CpuState, drive: number) {
if (!this.disks[drive]?.blocks.length) {
debug('Drive', drive, 'is empty');
state.a = DEVICE_OFFLINE;
state.s |= flags.C;
return;
}
if (this.disks[drive].readOnly) {
debug('Drive', drive, 'is write protected');
state.a = WRITE_PROTECTED;
state.s |= flags.C;
return;
}
for (let idx = 0; idx < this.disks[drive].blocks.length; idx++) {
this.disks[drive].blocks[idx] = new Uint8Array();
for (let jdx = 0; jdx < 512; jdx++) {
@ -233,7 +268,7 @@ export default class SmartPort implements Card, MassStorage, Restorable<SmartPor
}
state.a = 0;
state.s &= 0xfe;
state.s &= flags.C;
}
private access(off: byte, val: byte) {
@ -343,7 +378,7 @@ export default class SmartPort implements Card, MassStorage, Restorable<SmartPor
case 0:
switch (status) {
case 0:
buffer.writeByte(1); // one device
buffer.writeByte(2); // two devices
buffer.inc(1).writeByte(1 << 6); // no interrupts
buffer.inc(2).writeByte(0); // reserved
buffer.inc(3).writeByte(0); // reserved
@ -354,7 +389,7 @@ export default class SmartPort implements Card, MassStorage, Restorable<SmartPor
state.x = 8;
state.y = 0;
state.a = 0;
state.s &= 0xfe;
state.s &= ~flags.C;
break;
}
break;
@ -369,13 +404,13 @@ export default class SmartPort implements Card, MassStorage, Restorable<SmartPor
state.x = 4;
state.y = 0;
state.a = 0;
state.s &= 0xfe;
state.s &= ~flags.C;
break;
}
break;
}
state.a = 0;
state.s &= 0xfe;
state.s &= ~flags.C;
break;
case 0x01: // READ BLOCK