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More cleanup of RED stack overflow handling

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This commit is contained in:
Jeff Parsons 2016-11-19 16:42:52 -08:00 • committed by Jeff Parsons
commit 687439e57e
5 changed files with 201 additions and 208 deletions
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5
apps/pdp11/tapes/diags/README.md
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@ -181,6 +181,9 @@ it expects the MUL instruction to trap.
Before loading and running this test on the [PDP-11/20 with Front Panel and Debugger](/devices/pdp11/machine/1120/panel/debugger/),
it's recommended that you also toggle SW-15, as described below, so that the test will HALT on any failure.
Also, this test, like [Test 14](#test-14), fails on a PDP-11/45 or newer machine. In this case, it's because DEC
changed the behavior of the RTI instruction on newer models.
MAINDEC-11-D0OA (NEW NUMBER - DZQKA)
T15 Instruction Exerciser
@ -358,5 +361,3 @@ which predates the 11/45 and 11/70, expects this instruction:
to trap when SP is 150. That contradicts this newer test (ie, that TST should not cause an overflow
trap "BECAUSE TST IS A NON MODIFYING INST"). For this and other reasons, PDPjs now installs different
checkStackLimit() handlers based on the CPU model.