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doc fixes; doxygen 1.9.5 [skip ci]
This commit is contained in:
wfjm
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@ -15,19 +15,6 @@ Only SXT depends on a condition code (N), but doesn't change this cc.
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Therefore, an instruction re-execution will always give the correct result.
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But clearly a BUG, the condition codes must not change in case of MMU aborts.
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### V0.791-4 {[issue #36](https://github.com/wfjm/w11/issues/36)} -- MMU trap delayed when prefetch in s_idecode
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The s_idecode prefetch logic checks only for tflag and int_pending, but not
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for pending MMU traps.
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If the instruction read of a RR instruction, like ROR R0 or ADD R0,R1 causes
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an MMU trap, this trap will not executed. In fact, it's not even queued,
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it's lost.
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Detected in a code review.
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No practical consequences, MMU traps are not used by any OS.
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But clearly a BUG, such cases should trigger an MMU trap.
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### V0.50-2 {[issue #28](https://github.com/wfjm/w11/issues/28)} -- RK11: write protect action too slow
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Some simple RK11 drivers, especially in test codes, don't poll for completion
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@ -57,36 +44,6 @@ Can be resolved by handling write lock locally. Normal OS always do
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a busy poll before starting a function, therefore this is considered
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a minor deficit. Might be fixed in an upcoming release.
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### V0.50-3 {[issue #27](https://github.com/wfjm/w11/issues/27)} -- CPU: no mmu trap when instruction which clears trap enable itself causes a trap
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The MMU should issue an mmu trap if the instruction clearing the
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'mmu trap enable' bit (bit 9 in mmr0) itself causes a trap.
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The 11/70 documentation clearly describes this behavior.
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This is the reason why test 063 of the `ekbee1` diagnostics currently fails.
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Since the MMU trap mechanism is is only available on 11/45 and 11/70, but
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not in the J11, it is not used by common operating systems.
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Therefore this is considered a to be a minor deficit. Will be fixed in an
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upcoming release.
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### V0.50-1 {[issue #23](https://github.com/wfjm/w11/issues/23)} -- CPU: several deficits in trap logic
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The current w11a implementation has several deficits in the handling of
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traps and interrupts which lead to non-conforming behavior when multiple
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trap, fault and interrupt conditions occur simultaneously, for example
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- bad stack frame when `IOT` trigger stack violation (TCK-003)
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- bad stack frame when interrupt triggers stack violation (TCK-004)
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- no yellow stack abort when `jsr` triggers a stack violation (TCK-006)
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- no odd address trap when `EMT` is executed with odd `SP` (TCK-007)
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- no yellow stack abort for `mov (sp),(sp)` (TCK-028)
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These situations never occur during the execution of operation systems, and
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in case they do, the operating system will crash anyway. Thus there is no
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impact in normal usage, but diagnostics programs do complain. Will be fixed
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in an upcoming release.
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### V0.50-8 {[issue #21](https://github.com/wfjm/w11/issues/21)} -- RK11,RL11: no proper NXM check in 18bit systems
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No `NXM` error is generated when a UNIBUS device DMA transfer reaches the top
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@ -1,7 +1,65 @@
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# Resolved issues
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### V0.50-3 {[issue #27](https://github.com/wfjm/w11/issues/27)} -- CPU: no mmu trap when instruction which clears trap enable itself causes a trap
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#### Original Issue
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The MMU should issue an mmu trap if the instruction clearing the
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'mmu trap enable' bit (bit 9 in mmr0) itself causes a trap.
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The 11/70 documentation clearly describes this behavior.
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This is the reason why test 063 of the `ekbee1` diagnostics currently fails.
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Since the MMU trap mechanism is is only available on 11/45 and 11/70, but
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not in the J11, it is not used by common operating systems.
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Therefore this is considered a to be a minor deficit. Will be fixed in an
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upcoming release.
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#### Reason for closure on 2020-12-08
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Not fixed, documented as [known difference](https://github.com/wfjm/w11/blob/master/doc/w11a_diff_70_mmu_trap_suppression.md).
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### V0.50-1 {[issue #23](https://github.com/wfjm/w11/issues/23)} -- CPU: several deficits in trap logic
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#### Original Issue
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The current w11a implementation has several deficits in the handling of
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traps and interrupts which lead to non-conforming behavior when multiple
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trap, fault and interrupt conditions occur simultaneously, for example
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- bad stack frame when `IOT` trigger stack violation (TCK-003)
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- bad stack frame when interrupt triggers stack violation (TCK-004)
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- no yellow stack abort when `jsr` triggers a stack violation (TCK-006)
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- no odd address trap when `EMT` is executed with odd `SP` (TCK-007)
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- no yellow stack abort for `mov (sp),(sp)` (TCK-028)
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These situations never occur during the execution of operation systems, and
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in case they do, the operating system will crash anyway. Thus there is no
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impact in normal usage, but diagnostics programs do complain. Will be fixed
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in an upcoming release.
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#### Fix
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Fixed with commit [40608e3](https://github.com/wfjm/w11/commit/40608e3),
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see [ECO-035](ECO-035-stklim-tbit-fixes.md).
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### V0.791-4 {[issue #36](https://github.com/wfjm/w11/issues/36)} -- MMU trap delayed when prefetch in s_idecode
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#### Original Issue
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The s_idecode prefetch logic checks only for tflag and int_pending, but not
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for pending MMU traps.
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If the instruction read of a RR instruction, like ROR R0 or ADD R0,R1 causes
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an MMU trap, this trap will not executed. In fact, it's not even queued,
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it's lost.
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Detected in a code review.
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No practical consequences, MMU traps are not used by any OS.
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But clearly a BUG, such cases should trigger an MMU trap.
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#### Fix
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Fixed with commit [85f1854](https://github.com/wfjm/w11/commit/85f1854),
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see [ECO-035](ECO-035-stklim-tbit-fixes.md).
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### V0.791-3 {[issue #35](https://github.com/wfjm/w11/issues/35)} -- MMU: D space used instead of I space for PC deferred specifiers
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#### Original Issue
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Test 072 of `ekbee1` fails with
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```
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D-SPACE ENABLE CIRCUITRY HAS FAILED
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@ -23,11 +81,13 @@ Clearly a bug.
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Wasn't detected so far because this access mode has no practical value
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and this therefore not used in normal software.
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#### Fix
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Fixed with commit [278d2e2](https://github.com/wfjm/w11/commit/278d2e2),
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see [ECO-034](ECO-034-MMU_d-space-pc.md).
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### V0.791-2 {[issue #34](https://github.com/wfjm/w11/issues/34)} -- MMU: ACF=1 traps on any access
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#### Original Issue
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Test 055 of `ekbee1` fails with
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```
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MEMORY MANAGEMENT TRAP OR ABORT HAD INCORRECT CONDITION
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@ -38,11 +98,13 @@ Test 055 of `ekbee1` fails with
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This is caused by a bug in pdp11_mmu. For ACF=1 a trap is taken for any access,
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it should be taken only for read accesses.
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#### Fix
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Fixed with commit [1644863](https://github.com/wfjm/w11/commit/1644863),
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see [ECO-033](ECO-033-MMU_AFC-1_PDR-A.md).
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### V0.791-1 {[issue #33](https://github.com/wfjm/w11/issues/33)} -- MMU: PDR A bit is set for every access
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#### Original Issue
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The `PDR` `A` bit is described in the Technical Manual as
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> A bit (bit 7) - This bit is used by software to determine whether or not
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> any accesses to this page met the trap condition specified by the Access
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@ -58,11 +120,13 @@ The w11 currently sets the 'A' bit on any non-aborted access regardless of the A
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No practical impact, the 'A' bit in `PDR` is a 11/45 11/70 only feature and not used in OS software.
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#### Fix
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Fixed with commit [1644863](https://github.com/wfjm/w11/commit/1644863),
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see [ECO-033](ECO-033-MMU_AFC-1_PDR-A.md).
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### V0.50-6 {[issue #26](https://github.com/wfjm/w11/issues/26)} -- CPU: MMR0 trap bit set when access aborted
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#### Original Issue
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The MMU should set the 'trap bit' in `MMR0` only when the access is not
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aborted. The current pdp11_mmu implementation sets the bit even when the
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access is aborted.
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@ -75,11 +139,13 @@ not in the J11, it is not used by common operating systems.
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Therefore this is considered a to be a minor deficit. Will be fixed in an
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upcoming release.
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#### Fix
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Fixed with commit [1644863](https://github.com/wfjm/w11/commit/1644863),
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see [ECO-033](ECO-033-MMU_AFC-1_PDR-A.md).
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### V0.50-5 {[issue #25](https://github.com/wfjm/w11/issues/25)} -- CPU: The AIB bit in MMU PDR register set independant of ACF field
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#### Original Issue
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The MMU should set the AIB A bit in the the PDR only when _"trap condition is
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met by the Access Control Field (ACF)"_. Thus for
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```
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@ -101,11 +167,13 @@ in the J11, it is not used by common operating systems.
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Therefore this is considered a to be a minor deficit. Will be fixed in an
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upcoming release.
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#### Fix
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Fixed with commit [1644863](https://github.com/wfjm/w11/commit/1644863),
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see [ECO-033](ECO-033-MMU_AFC-1_PDR-A.md).
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### V0.79-2 {[issue #30](https://github.com/wfjm/w11/issues/30)} -- SimH scmd files fail on current 4.* version; only 3.* supported
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#### Original Issue
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The SimH scmd scripts were originally developed for SimH 3.8, and worked for
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SimH 3.9 and later releases. The SimH 4.* development team decided not to
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provide releases anymore, and over time this version became incompatible with
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@ -131,10 +199,12 @@ Bottom line:
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- the provided scmd scripts work only with SimH V3.9, V3.10 or V3.11-1
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- an update to the SimH V4.* has low priority
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#### Fix
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Fixed with commit [35453c4](https://github.com/wfjm/w11/commit/35453c4)
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### V0.50-4 {[issue #24](https://github.com/wfjm/w11/issues/24)} -- CPU: src+dst deltas summed in mmr1 if register identical
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#### Original Issue
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Test 12 of maindec `ekbee1` fails because it expects after a
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```
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mov #100000,@#mmr0
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@ -157,6 +227,7 @@ logged accesses end in separate bytes (byte 0 filled first).
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The w11a only uses byte 1 when the register number differs.
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#### Fix
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Fixed with commit [3bd23c9](https://github.com/wfjm/w11/commit/3bd23c9),
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see [ECO-032](ECO-032-MMR1_fix.md).
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@ -1,4 +1,4 @@
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# Doxyfile 1.9.4
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# Doxyfile 1.9.5
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#---------------------------------------------------------------------------
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# Project related configuration options
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@ -114,6 +114,7 @@ WARN_LOGFILE =
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INPUT = $(RETROBASE)/tools/src \
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$(RETROBASE)/tools/dox/cpp_extra
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INPUT_ENCODING = UTF-8
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INPUT_FILE_ENCODING =
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FILE_PATTERNS = *.cpp \
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*.hpp \
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*.ipp \
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@ -134,6 +135,7 @@ FILTER_PATTERNS =
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FILTER_SOURCE_FILES = NO
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FILTER_SOURCE_PATTERNS =
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USE_MDFILE_AS_MAINPAGE =
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FORTRAN_COMMENT_AFTER = 72
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#---------------------------------------------------------------------------
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# Configuration options related to source browsing
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#---------------------------------------------------------------------------
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@ -162,6 +164,7 @@ HTML_FOOTER =
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HTML_STYLESHEET =
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HTML_EXTRA_STYLESHEET =
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HTML_EXTRA_FILES =
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HTML_COLORSTYLE = AUTO_LIGHT
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HTML_COLORSTYLE_HUE = 220
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HTML_COLORSTYLE_SAT = 100
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HTML_COLORSTYLE_GAMMA = 80
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@ -201,7 +204,6 @@ EXT_LINKS_IN_WINDOW = NO
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OBFUSCATE_EMAILS = YES
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HTML_FORMULA_FORMAT = png
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FORMULA_FONTSIZE = 10
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FORMULA_TRANSPARENT = YES
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FORMULA_MACROFILE =
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USE_MATHJAX = NO
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MATHJAX_VERSION = MathJax_2
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@ -305,8 +307,9 @@ DIA_PATH =
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HIDE_UNDOC_RELATIONS = YES
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HAVE_DOT = YES
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DOT_NUM_THREADS = 0
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DOT_FONTNAME = Helvetica
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DOT_FONTSIZE = 10
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DOT_COMMON_ATTR = "fontname=Helvetica,fontsize=10"
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DOT_EDGE_ATTR = "labelfontname=Helvetica,labelfontsize=10"
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DOT_NODE_ATTR = "shape=box,height=0.2,width=0.4"
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DOT_FONTPATH =
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CLASS_GRAPH = YES
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COLLABORATION_GRAPH = YES
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@ -334,7 +337,6 @@ PLANTUML_CFG_FILE =
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PLANTUML_INCLUDE_PATH =
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DOT_GRAPH_MAX_NODES = 50
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MAX_DOT_GRAPH_DEPTH = 0
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DOT_TRANSPARENT = NO
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DOT_MULTI_TARGETS = NO
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GENERATE_LEGEND = YES
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DOT_CLEANUP = YES
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@ -1,4 +1,4 @@
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# Doxyfile 1.9.4
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# Doxyfile 1.9.5
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#---------------------------------------------------------------------------
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# Project related configuration options
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@ -113,6 +113,7 @@ WARN_LOGFILE =
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#---------------------------------------------------------------------------
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INPUT = $(RETROBASE)/rtl
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INPUT_ENCODING = UTF-8
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INPUT_FILE_ENCODING =
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FILE_PATTERNS = *.vhd \
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*.dox
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RECURSIVE = YES
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@ -135,6 +136,7 @@ FILTER_PATTERNS =
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FILTER_SOURCE_FILES = NO
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FILTER_SOURCE_PATTERNS =
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USE_MDFILE_AS_MAINPAGE =
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FORTRAN_COMMENT_AFTER = 72
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#---------------------------------------------------------------------------
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# Configuration options related to source browsing
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#---------------------------------------------------------------------------
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@ -163,6 +165,7 @@ HTML_FOOTER =
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HTML_STYLESHEET =
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HTML_EXTRA_STYLESHEET =
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HTML_EXTRA_FILES =
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HTML_COLORSTYLE = AUTO_LIGHT
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HTML_COLORSTYLE_HUE = 220
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HTML_COLORSTYLE_SAT = 100
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HTML_COLORSTYLE_GAMMA = 80
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@ -202,7 +205,6 @@ EXT_LINKS_IN_WINDOW = NO
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OBFUSCATE_EMAILS = YES
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HTML_FORMULA_FORMAT = png
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FORMULA_FONTSIZE = 10
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FORMULA_TRANSPARENT = YES
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FORMULA_MACROFILE =
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USE_MATHJAX = NO
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MATHJAX_VERSION = MathJax_2
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@ -306,8 +308,9 @@ DIA_PATH =
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HIDE_UNDOC_RELATIONS = YES
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HAVE_DOT = YES
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DOT_NUM_THREADS = 0
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DOT_FONTNAME = Helvetica
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DOT_FONTSIZE = 10
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DOT_COMMON_ATTR = "fontname=Helvetica,fontsize=10"
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||||
DOT_EDGE_ATTR = "labelfontname=Helvetica,labelfontsize=10"
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DOT_NODE_ATTR = "shape=box,height=0.2,width=0.4"
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DOT_FONTPATH =
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CLASS_GRAPH = YES
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COLLABORATION_GRAPH = YES
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||||
@ -335,7 +338,6 @@ PLANTUML_CFG_FILE =
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PLANTUML_INCLUDE_PATH =
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||||
DOT_GRAPH_MAX_NODES = 50
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||||
MAX_DOT_GRAPH_DEPTH = 0
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||||
DOT_TRANSPARENT = NO
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||||
DOT_MULTI_TARGETS = NO
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||||
GENERATE_LEGEND = YES
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||||
DOT_CLEANUP = YES
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||||
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||||
Loading…
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Reference in New Issue
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