ROUNDING-OFF IN ACCORDANCE WITH INSTRUCTIONS Russian patent published in 2012 - IPC G06F7/499 

FIELD: information technology.

SUBSTANCE: method involves the following steps: in processor control selector module, rounding-off instruction of command set architecture user level is received which instruction has format including source operand, destination operand and directly obtained value; determination is executed if the indicator of rounding-off of directly obtained value mode cancellation saved in processor control register is active, by means of decoding directly obtained value in processor control selector module; if so the field of directly obtained value rounding-off mode is received and decoded in control selector module to obtain rounding-off mode, herewith, rounding-off mode field is separated from cancellation indicator; source operand and rounding-off mode control information is transferred to processor floating-point module connected with control selector module; rounding-off operation is executed by source operand in processor floating-point module which is responsible for user-level rounding-off instruction, and according to control information.

EFFECT: reducing time and complexity of operation execution.

20 cl, 5 dwg, 6 tbl