11/3/71 | SYS_ILGINS (II) |
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NAME |
ilgins -- catch illegal instruction trap |
SYNOPSIS |
sys ilgins; arg / ilgins = 33.; not in assembler |
DESCRIPTION |
ilgins allows a program to catch illegal instructiontraps. If arg is zero, the normal instruction trap |
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| handling is done: the process is terminated and a coreimage is produced. If arg is a location within the program, control is passed to arg when the trap occurs. This call is used to implement the floating pointsimulator, which catches and interprets 11/45 floating point instructions. |
FILES |
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SEE_ALSO |
fptrap, the floating point package |
DIAGNOSTICS |
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BUGS |
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OWNER |
ken, dmr |
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