Retro/pcjs
Watch
1
0
Fork
You've already forked pcjs
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

First stab at RK11 support

Browse source
This commit is contained in:
Jeff Parsons 2016-11-21 18:10:20 -08:00 • committed by Jeff Parsons
commit dcea4fb905
22 changed files with 1468 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

88
modules/pdp11/lib/defines.js
View file

@ -476,6 +476,15 @@ var PDP11 = {
RLMP: 0o174406, // RL11 Multi-Purpose Register
RLBE: 0o174410, // RL11 Bus (Address) Extension Register (RLV12 controller only)
RKDS: 0o177400, // RK11 Drive Status Register
RKER: 0o177402, // RK11 Error Register
RKCS: 0o177404, // RK11 Control Status Register
RKWC: 0o177406, // RK11 Word Count Register
RKBA: 0o177410, // RK11 Bus Address Register
RKDA: 0o177412, // RK11 Disk Address Register
// NOTE: 177414 is unused
RKDB: 0o177416, // RK11 Data Buffer Register
LKS: 0o177546, // KW11-L Clock Status
PRS: 0o177550, // PC11 (and PR11) Reader Status Register
@ -644,6 +653,84 @@ var PDP11 = {
BAUD: 600
},
},
RK11: { // RK11 Disk Controller
PRI: 5,
VEC: 0o220,
RKDS: { // 177400: Drive Status Register
SC: 0x000F, // Sector Counter
SCESA: 0x0010, // Sector Counter Equals Sector Address
WPS: 0x0020, // Write Protected Status (set if write-protected)
RRDY: 0x0040, // Read/Write/Seek Ready
DRDY: 0x0080, // Drive Ready
SOK: 0x0100, // Sector Counter OK
SIN: 0x0200, // Seek Incomplete
DRU: 0x0400, // Drive Unsafe
RK05: 0x0800, // RK05 is the selected disk drive (always set)
DPL: 0x1000, // Drive Power Low
ID: 0xE000, // Drive ID (logical drive number of an interrupting drive)
SHIFT: {
ID: 13
}
},
RKER: { // 177402: Error Register
WCE: 0x0001, // Write Check Error
CSE: 0x0002, // Checksum Error
UNUSED: 0x001C, // unused (returns zero)
NXS: 0x0020, // Non-Existent Sector
NXC: 0x0040, // Non-Existent Cylinder
NXD: 0x0080, // Non-Existent Disk
TE: 0x0100, // Timing Error
DLT: 0x0200, // Date Late
NXM: 0x0400, // Non-Existent Memory
PGE: 0x0800, // Programming Error
SKE: 0x1000, // Seek Error
WLO: 0x2000, // Write Lock-Out Violation
OVR: 0x4000, // Overrun
DRE: 0x8000 // Drive Error
},
RKCS: { // 177404: Control Status Register
GO: 0x0001, // Go (W/O)
FUNC: 0x000E, // Function Code (F2,F1,F0) (R/W)
MEX: 0x0030, // Memory Extension (R/W)
IE: 0x0040, // Interrupt Enable (R/W)
CRDY: 0x0080, // Controller Ready (R/O)
SSE: 0x0100, // Stop on Soft Error (R/W)
EXB: 0x0200, // Extra Bit (R/W)
FMT: 0x0400, // Format (R/W)
IBA: 0x0800, // Inhibit RKBA Increment (R/W)
SCP: 0x2000, // Search Complete (R/O)
HE: 0x4000, // Hard Error (R/O)
ERR: 0x8000, // Composite Error (R/O) (set when any RKER bit is set)
UNUSED: 0x1200, // unused
RMASK: 0xEFFE, // bits readable
WMASK: 0x0F7F, // bits writable
SHIFT: {
FUNC: 1,
MEX: 4
}
},
RKDA: { // 177412: Disk Address Register
SA: 0x000F, // Sector Address
HS: 0x0010, // Head Select (aka SUR: clear for upper disk head, set for lower)
CA: 0x1FE0, // Cylinder Address (aka CYL ADDR)
DS: 0xE000, // Drive Select (aka DR SEL)
SHIFT: {
HS: 4,
CA: 5,
DS: 13
}
},
FUNC: { // NOTE: These function codes are pre-shifted to read/write directly from/to RKCS.FUNC
CRESET: 0b0000, // Controller Reset
WRITE: 0b0010, // Write
READ: 0b0100, // Read
WCHK: 0b0110, // Write Check
SEEK: 0b1000, // Seek
RCHK: 0b1010, // Read Check
DRESET: 0b1100, // Drive Reset
WLOCK: 0b1110 // Write Lock
}
},
RL11: { // RL11 Disk Controller
PRI: 5,
VEC: 0o160,
@ -663,6 +750,7 @@ var PDP11 = {
WMASK: 0x03FE, // bits writable
SHIFT: {
FUNC: 1,
BAE: 4,
DS: 8
}
},