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Factored PDP-11 drive controller logic into a device-independent superclass (drive.js) and a device-dependent subclass (rk11.js); the RL11 controller is ready to be factored next

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Jeff Parsons 2017-01-28 13:39:19 -08:00 • committed by Jeff Parsons
commit 5edbdcdce2
33 changed files with 1754 additions and 1615 deletions
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3
modules/pdp11/lib/defines.js
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@ -690,6 +690,7 @@ var PDP11 = {
RK11: { // RK11 Disk Controller
PRI: 5,
VEC: 0o220,
DRIVES: 8, // maximum of 8 drives
RKDS: { // 177400: Drive Status Register
SC: 0x000F, // (000017) Sector Counter
SCESA: 0x0010, // (000020) Sector Counter Equals Sector Address
@ -874,6 +875,8 @@ var PDP11 = {
}
};
PDP11.RK11.RK05 = [203, 2, 12, 512, PDP11.RK11.RKDS.RK05 | PDP11.RK11.RKDS.SOK | PDP11.RK11.RKDS.RRDY];
PDP11.ACCESS.READ_WORD = PDP11.ACCESS.WORD | PDP11.ACCESS.READ; // formerly READ_MODE (2)
PDP11.ACCESS.READ_BYTE = PDP11.ACCESS.BYTE | PDP11.ACCESS.READ; // formerly READ_MODE (2) | BYTE_MODE (1)
PDP11.ACCESS.WRITE_WORD = PDP11.ACCESS.WORD | PDP11.ACCESS.WRITE; // formerly WRITE_MODE (4)