Format 1 (call) disp30 op Format 2a (sethi, nop) imm22 op rd op2

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Presentation transcript:

Princeton University COS 217: Introduction to Programming Systems SPARC Instruction Formats Format 1 (call) 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 disp30 op Format 2a (sethi, nop) 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 imm22 op rd op2 Format 2b (branches) 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 disp22 op cond op2 a Format 3a (remaining instructions, three registers) 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 rs2 op rd op3 rs1 asi (unused) Format 3b (remaining instructions, two registers and one immediate) 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 simm13 op rd op3 rs1 1 Copyright © 2001 by Robert M. Dondero, Jr.