Rievtech PR-12 Series, User Manual And Programmers Manual

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6.15.2 FIFO
Input/output Operand Data type
TBL VW, IW, QW, MW, SW, SMW, LW, T, C, *VD, *LD, *AC word
DATA VW, IW, QW, MW, SW, SMW, LW, AC, T, C, AQW, *VD, *LD, *AC integer
FIFO: Remove the first entry in the table (TBL) and move
the value to the location specified by DATA.All other
entries in the table move a location upward.Each time the
instruction is executed,the number of entries in the table
reduces 1.
error conditions:
0006 Indirect address
0091 Operand range
SM1.5 Empty list
Special memory bit:
SM1.5 Empty list
Table Format:
VW200 The maximum number of entries
VW202 Entry count
W204 Data 0
VW206 Data 1
VW208 Data 2
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