19 lines
921 B
ArmAsm
19 lines
921 B
ArmAsm
%default {"preinstr":"", "result0":"a0"}
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/*
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* Generic 32-bit unary operation. Provide an "instr" line that
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* specifies an instruction that performs "result = op a0".
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* This could be a MIPS instruction or a function call.
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*
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* for: neg-int, not-int, neg-float, int-to-float, float-to-int,
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* int-to-byte, int-to-char, int-to-short
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*/
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/* unop vA, vB */
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GET_OPB(a3) # a3 <- B
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GET_OPA4(t0) # t0 <- A+
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GET_VREG(a0, a3) # a0 <- vB
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FETCH_ADVANCE_INST(1) # advance rPC, load rINST
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$preinstr # optional op
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$instr # a0 <- op, a0-a3 changed
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GET_INST_OPCODE(t1) # extract opcode from rINST
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SET_VREG_GOTO($result0, t0, t1) # vAA <- result0
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/* 9-10 instructions */
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