Compatibility Note A.25

HBK

Specification of an AF indirect field length may produce incompatible results.

B4800 An AF indirect field length may have many levels of indirection. Due to the indirect field length flags bits, the final AFA value must be in the hexadecimal range 0-B. Undigits are allowed in the final AFB value.
B2900
B3900
If the original AF does not specific indirect field length the AF is valid and unchanged. However, if the indirect field length bits are set, the indirect field length is checked for errors and resolved (only one level of indirection is resolved). The final resolved field may be any value and is ignored.
B4900
V300
V500
Any undigits in the original AF will cause Invalid Instruction (IEX = xx) unless contained in a valid indirect field length or literal specification. If the indirect field length bits are set, the indirect field length is checked for errors and resolved (only one level of indirection is resolved). The final resolved field may be any value and is ignored.
compatibility_notes/a.25.txt · Last modified: 2008/11/25 14:36 by scott
 
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