HP 3000 Manuals HP 3000 Manuals
Class Errors (Cont'd)
Class Error 4: Coprocessor Failure
Coprocessor messages take the form:
42xx
where:
xx = the last two digits of the hex display.
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00 MESSAGE No message. System halts. (E)
CAUSE Error indicates that the coprocessor is frozen.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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02 MESSAGE No message. System halts. (E)
CAUSE Test fails as single load followed by a single
store is executed without an intervening I-cache
miss.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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03 MESSAGE No message. System halts. (E)
CAUSE Test fails as double load followed by a double
store is executed to see that the lower word
returns correctly.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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04 MESSAGE No message. System halts. (E)
CAUSE Test fails as floating-point operation is executed
and followed by a sufficient number of
nonfloating-point instructions to ensure that
the FP operation has been completed. A
single-precision store performs the check of the
result.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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05 MESSAGE No message. System halts. (E)
CAUSE An error occurs as a floating-point compare
operation that sets the C bit is executed. An
FTEST instruction checks that the C bit has been
set.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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06 MESSAGE No message. System halts. (E)
CAUSE An error occurs as a load of the status register is
attempted from an I/O address. This should abort.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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07 MESSAGE No message. System halts. (E)
CAUSE An error occurs as a coprocessor load followed by a
floating-point operation that uses the load data is
executed.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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08 MESSAGE No message. System halts. (E)
CAUSE An error occurs since a floating-point operation
that causes a trapping exception is immediately
followed by a coprocessor store with a T-register
conflict. This store should have been delayed
until the trap completes, reflecting the result of
the trap.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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09 MESSAGE No message. System halts. (E)
CAUSE An unanticipated trap occurs, possibly caused by a
failure of the r1 comparator or trap logic.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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0A MESSAGE No message. System halts. (E)
CAUSE Test of conflict comparator fails.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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0B MESSAGE No message. System halts. (E)
CAUSE An error occurs as coprocessor load of a nonzero
number to FPR (0), the status register, is executed
and then a floating-point operation that requires
zero as an operand is executed. This tests that
the FP operation reflects an operand of zero.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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0C MESSAGE No message. System halts. (E)
CAUSE T-bit of FPR(0) is not set.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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0D MESSAGE No message. System halts. (E)
CAUSE An error occurs as a floating-point operation with
a zero T-field is executed followed by a
coprocessor store of the status register. The
status register should not have been affected by
the FP operation.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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0E MESSAGE No message. System halts. (E)
CAUSE An error occurs as a coprocessor load to a reserved
register is attempted. This should cause a
reserved operation trap.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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0F MESSAGE No message. System halts. (E)
CAUSE An error occurs as a coprocessor load from an I/O
address is attempted. This load should abort.
ACTION Contact your Hewlett-Packard Support
Representative.
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31 MESSAGE No message. System halts. (E)
CAUSE Test results in an unexpected assist exception
trap. This cause can stem from a variety of
problems in the system, possibly resulting from a
test of the conflict comparator. This test can
also reflect a malfunction of one or more of the
math chips.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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42 MESSAGE No message. System halts. (E)
CAUSE Test of ALUZERO condition fails.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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43 MESSAGE No message. System halts. (E)
CAUSE Test of ALUZERO condition fails.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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44 MESSAGE No message. System halts. (E)
CAUSE Test of ALUSIGN condition fails.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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45 MESSAGE No message. System halts. (E)
CAUSE Test of XOR in ALU fails.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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46 MESSAGE No message. System halts. (E)
CAUSE Test of AND in ALU fails.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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47 MESSAGE No message. System halts. (E)
CAUSE Test of OR in ALU fails.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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48 MESSAGE No message. System halts. (E)
CAUSE Test of load to status register fails.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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49 MESSAGE No message. System halts. (E)
CAUSE Test of instruction register fails.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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62 MESSAGE No message. System halts. (E)
CAUSE Detect failure of multiply chip U2302.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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64 MESSAGE No message. System halts. (E)
CAUSE Detect failure of add chip U2104.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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65 MESSAGE No message. System halts. (E)
CAUSE Detect failure of divide chip U2305.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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80 MESSAGE No message. System halts. (E)
CAUSE Detect failure in nullify generation circuitry.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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86 MESSAGE No message. System halts. (E)
CAUSE Microcode detects possible failure of RAM6 U1101.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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90 MESSAGE No message. System halts. (E)
CAUSE Microcode detects possible failure of RAM7 U1301.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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91 MESSAGE No message. System halts. (E)
CAUSE Microcode detects possible failure of RAM2 U1302.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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95 MESSAGE No message. System halts. (E)
CAUSE Microcode detects possible failure of RAM5 U1401.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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96 MESSAGE No message. System halts. (E)
CAUSE Microcode detects possible failure of RAM1 U1402.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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97 MESSAGE No message. System halts. (E)
CAUSE Microcode detects possible failure of RAM4 U1403.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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98 MESSAGE No message. System halts. (E)
CAUSE Microcode detects possible failure of RAM0 U1404.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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C0 MESSAGE No message. System halts. (E)
CAUSE Macrocode detects possible failure of RAM0 U1404.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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C1 MESSAGE No message. System halts. (E)
CAUSE Macrocode detects possible failure of RAM1 U1402.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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C2 MESSAGE No message. System halts. (E)
CAUSE Macrocode detects possible failure of RAM2 U1302.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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C3 MESSAGE No message. System halts. (E)
CAUSE Macrocode detects possible failure of RAM3 U1303.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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C4 MESSAGE No message. System halts. (E)
CAUSE Macrocode detects possible failure of RAM4 U1403.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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C5 MESSAGE No message. System halts. (E)
CAUSE Macrocode detects possible failure of RAM5 U1401.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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C6 MESSAGE No message. System halts. (E)
CAUSE Macrocode detects possible failure of RAM6 U1101.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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C7 MESSAGE No message. System halts. (E)
CAUSE Macrocode detects possible failure of RAM7 U1301.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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CA MESSAGE No message. System halts. (E)
CAUSE An error occurs during a series of arbitrary
microcode calculations. Areas of possible cause
are the mapper PROM or the math chips.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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CC MESSAGE No message. System halts. (E)
CAUSE An error occurs which slows the execution of the
floating-point unit.
ACTION Contact your Hewlett-Packard Support
Representative. Remove the floating-point board,
then reboot the system.
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