User:RDBrown/HP3000-WCS-Microcode

In March 1982, Hewlett-Packard announced the HP 3000 Series 64, an ECL implementation with a WCS.^[1]
September 1985 brought the announcement of the Series 37, a low-cost gate array implementation which eschewed the usual separate control processor for booting and used an initial bootstrap from the 32-bit wide ROMs to load the 64-bit wide boot microcode into the WCS.^[2]

It's unlikely that the MPE based HP 3000 Series 64 microcode development system (MDS) software has survived, but an HP internal 543 page assembly listing exists.^[3] The Series 37 Design Capture and Documentation (DCDF) tool for capturing designs for simulation in FTL (IBM 370) on an Amdahl V6 is also unlikely to have survived. Unlike the Series 64 listing, only a single line example is shown in the HP Journal for the Series 37 microcode.

The WCS data needs to be recorded on the backup tapes. The System Tables manual describes the Sysdump (Backup) format describes the tape format and the WCS data can be included as part of the first file on the tape, but I haven't seen that in the tape images I've seen. The second file is a concatenation of a list of essential system files and does include the WCS files. The files seem to be dumped as they would be in the Store part of the backup, including the 256 byte (MPE sector) file label. So SYSWCS64.PUB.SYS for Series 64, 68 and 70; SYSWCS37.PUB.SYS for the Series 37 and direct successors. WCSLE1 and WCSLE2 for the Series 37 successors. The files are single extent 128W FB (256 bytes), with a zero file code. The first 256 byte record contains the version and probably a checksum. Assuming the data is 64-bit horizontal microcode the maximum is 10240 entries.

WCS Files
Filename	Date	Version	Data size	MD5	Source tape
SYSWCS64	1983-074	PR0903A	57856	9bbe23656aa61fb23351b8b8a9951742	32099-11009_MPE_IV_2244
SYSWCS64	1983-136	PR2312A	57856	69d809609e4ff5964a72c998058945d0	32033-11003_MPE_IV
SYSWCS64	1984-004	PR2318A	57856	ab9b59cd724659f6763daf37abbc80e4	32098-11003_2338
SYSWCS64	1984-264	pr2419a	58368	b55a5d00b7f5b3066826a0386903bfa8	32033-11010_vp-d-1_fos
SYSWCS64	1987-016	2833A	66560	953471cffece4e3fb2cb67c7007f84e9	v-delta-8_fos_2944
SYSWCS64	1987-016	cxa638a	66304	9bf49dca2afc4cea98151cb27d22c6b0	ub-delta-1_fos_2642
SYSWCS64	1988-159	2805A	66304	5e15376760a122f15099c617ac853440	v-delta-2_fos_2814 v-delta-3_fos
SYSWCS64	1989-145	2833A	66304	5c7d16e391abe087211b3a9fbc9dc4e0	v-delta-5_fos_2902
SYSWCS64	1990-113	2833A	66560	df0079446c945ecf91d04097dcc49639	v-delta-9_fos_32033-10024_3010
SYSWCS64	1990-250	2833A	66560	9ac00f6cf121f0db1d2f1301b38b0140	32033-10082_platform_1p_fos_34 er_3035
SYSWCS64	1992-225	wcx3033a	66560	d7864c56fc5af05820d62a9730d8feb1	32033-10430_MPE_V_Rel_2P_3237
SYSWCS37	1987-016	M06.08	82176	bb8f5773e6efa320ae22a5419383e70e	ub-delta-1_fos_2642
SYSWCS37	1988-159	M06.10	82176	ea7233c3fe085916b53532fba53c4c88	v-delta-2_fos_2814 v-delta-3_fos v-delta-5_fos_2902
SYSWCS37	1989-353	M06.15	82176	d140c56d5b26dcc2dac918e12f752ac6	32033-10430_MPE_V_Rel_2P_3237 v-delta-8_fos_2944 v-delta-9_fos_32033-10024_3010 32033-10082_platform_1p_fos_34er_3035
WCSLE1	1987-016	M30.14	82176	50e37d18f35728c767995fbe8759e70c	ub-delta-1_fos_2642
WCSLE1	1988-159	M30.17	82176	1497c8771666a19d9a3353fd9d92549b	v-delta-2_fos_2814 v-delta-3_fos v-delta-5_fos_2902
WCSLE1	1989-353	M30.20	82176	543bb46a70e61807ba31c02b1b9f6ffc	32033-10430_MPE_V_Rel_2P_3237 v-delta-8_fos_2944 v-delta-9_fos_32033-10024_3010 32033-10082_platform_1p_fos_34er_3035
WCSLE2	1987-016	M50.28	82176	7d809ae17e1e3776be982edfb0105ee1	ub-delta-1_fos_2642
WCSLE2	1988-159	M50.30	82176	3e74d482ca1f5f34dc75f1933c0e715f	v-delta-2_fos_2814 v-delta-3_fos v-delta-5_fos_2902
WCSLE2	1989-353	M50.34	82176	78fb826dd55624a91a0d7609103994b4	32033-10430_MPE_V_Rel_2P_3237 v-delta-8_fos_2944 v-delta-9_fos_32033-10024_3010 32033-10082_platform_1p_fos_34

Series 37

La Fetra, Jr., F.E (September 1985). "Using a Translator for Creating Readable Microcode". HP Journal. 36 (9): 10.

                           LABEL... A.. B.. C.. ADD IN I.. R-FCN-XCNTR-SEC X.. SPEC JTD JFD CONSTANT
0000: 1207 0555 1880 FFFF  LOOP     R1  R2  R0  R9  -1 R0    SZL Z5    S5  R1  JL=0 R8  R15 LOOP

Define Counter = R0,
       Left = R1, Right = R2;
Loop:
 Dec(counter) -> counter/	*Decrement
  Add(R10,R11) -> ADR/		*Computer address w/ADD
  ExtractR(Left||RIght(10..20)) -> Left/	*use extractor
  If Logic=0 then ReturnSub1 else Loop;		*IF.. THEN.. ELSE

Undefine counter,left,right

Parrish, W.M.; Decker, E.B.; Wong, E.G. "Creative ways to obtain Computer System Debug Tools": 18. Fig. 2 Maintenance panel firmware display {{cite journal}}: Cite journal requires |journal= (help)CS1 maint: multiple names: authors list (link)

TEMP R0: 061E   SJ1  R8: 5DF1   F0: 1  >0: 1  M:  1   BNKP: 0000   ICS: AAE0
P    R1: 0002   ADR  R9: 020A   F1: 1  BT: 0  I:  1   BNKD: 0000   DSP: 55E1
SM   R2: 0202   ADN R10: 0663   F2: 1  DV: 0  T:  1   BNKS: 0000   LP : AAE2
Q    R3: 0052   AUG R11: 0002   CI: 0  L0: 1  R:  1   BNKA: 0000   CPP: 55E2
DB   R4: 0202   STA R12: FFFF   CO: 0  FC: 1  O:  1   LAST: A      DL:  FFFF
IR   R5: 0002   FLG R13: E098   OV: 0  I0: 0  C:  1                Z:   5555
XCN  R6: 0000   MPC R14: 5DFA   <0: 0  CT: 0  CC: 3   OPA:  0160   PB:  30F8
SJ2  R7: 5F79   CON R15: 0000   =0: 0  SB: 0  SG: FF  OPB:  0000   PL:  0000
                                                                   X:   55EB
                                       TOSA: 0000    SR: 0         INV: 8090
                                       TOSB: 555A    NMR:0        WCS BKPT  
                                       TOSC: 0000    BDS:0       8001P  FFFF
MWA: 5DF9                              TOSD: 0000                53AEP  FFFF
MWR: FF03   00FF   6098   FFFF                                   FFFF   FFFF
A.. B.. C.. ADD IN I.. R-FCN-XCNTR-SEC X.. SPEC JTD JFD CON      FFFF   FFFF
R15 R15 R0      -1 R0    RRF $FF       R6  JBT  R7  R14 $0000    FFFF   FFFF

STATE:         U_HLT     11:14:14
U (MICRO) BREAKPOINT (SET)  <WCS ADDR> [,<DEC COUNT>] [;T]
4366

Engineers mentioned Frederic C. Amerson — Patria G. Alvarez John R. Obermeyer Frank E La Fetra, Jr. (Skip) Paul L. Rogers James H. Holl Malcolm E. Woodward Edwin G. Wong — diagnostic microcode S37 William M. Parrish Eric B. Decker — microcode for 37, 64, 68

Series 64

PAGE 1                HP 3000 Series 64/68/70 Microcode                                                    10/ 2/86    9:26 AM
 RECORD    C.S.       *********** ALU A ***********  ************* ALU B *******************
   NO      ADDR  LABL RREG SREG FUNC SFNC STOR SPSK  RREG SREG FUNC SFNC STOR SPSK SPEC SKIP  COMMENT
ddddd      XXXX  **************************************************************************

References

^ "HP 3000 Series 64" (PDF). HP Journal. 33 (3). March 1982.
^ "HP 3000 Series 37" (PDF). HP Journal. 36 (9). September 1985.
^ HP 3000 Series 64/68/70 Computer Systems Microcode Manual (PDF) (2nd ed.). Hewlett-Packard. October 1986. 30140-90045.

External Links

"3000 Computer Systems". HP Computer Museum.
- "3000 Series 64". 1981.
- "3000 Series 37". 1984.
- "3000 Micro CX". 1986.
- "3000 Micro XE". 1986.
- "3000 Micro LX/GX/RX". 1988.
HP Manuals on Bitsavers
- HP 3000 Series 64/68/70 Computer Systems Microcode Manual (PDF) (2nd ed.). Hewlett-Packard. October 1986. 30140-90045.
- MPE IV System Tables Reference Manual (PDF) (2nd Updated ed.). Hewlett-Packard. October 1981. 32002-90003.
- System Tables Reference Manual (PDF) (3rd ed.). Hewlett-Packard. November 1982. 32002-90003.
- MPE V Tables Manual for MPE V/E, Version G.00.00 (PDF). Hewlett-Packard. September 1983. 32002-90003.
- MPE V Tables Manual for MPE V/E, Version G.01.00 (PDF). Hewlett-Packard. January 1985. 32033-90040.
- MPE V Tables Manual MPE V/E (VUF G.08.00) MPE V Release 23 (PDF) (5th ed.). Hewlett-Packard. October 1991. 32033-91047.

[1] "HP 3000 Series 64" (PDF). HP Journal. 33 (3). March 1982.

[2] "HP 3000 Series 37" (PDF). HP Journal. 36 (9). September 1985.

[3] HP 3000 Series 64/68/70 Computer Systems Microcode Manual (PDF) (2nd ed.). Hewlett-Packard. October 1986. 30140-90045.

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