Notes on the example below:
YREGS * Define register names ... * This is a routine to initialize a table LA R15,0 * Load table entry number (start=0) SR R14,R14 * R14 indexes into the table LA R0,10 * Load number of table entries LA R1,C' ' * Char flag for the table entry INITLOOP STH R15,TABLE#(R14) * Store entry number STC R1,FLAG(R14) * Store char flag LA R14,12(R14) * Bump index into the table LA R15,1(R15) * Bump entry number BCT R0,INITLOOP * Loop through all 10 table entries ... DS 0F * Insure table has fullword alignment TABLE DS 0CL12 * Indicate each entry is 12 bytes DC F'0' * FLAG DC C' ' * Character flag DC X'00' * Bit type flag ENTRY# DC H'0' * Table entry number DC A(0) * DC 9XL12'00' * Rest of the table ...
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