71 lines
1.6 KiB
C
71 lines
1.6 KiB
C
/* $Id$ */
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/*
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* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
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* See the copyright notice in the ACK home directory, in the file "Copyright".
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*/
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/* These routines partition the huge set of EM-instructions in
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* "manageable chunks.
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*/
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extern int instrgroup(line_p lnp);
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/*
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* Return the group into which the instruction
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* in lnp belongs to.
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*/
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extern bool stack_group(int instr);
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/*
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* Return whether instr is an instruction that
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* only changes the state of the stack, i.e.
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* is a "true" operator.
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*/
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extern offset op11size(line_p lnp);
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/*
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* Return the size of the operand of the unary
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* operator in lnp.
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*/
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extern offset op12size(line_p lnp);
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/*
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* Return the size of the first operand of the
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* binary operator in lnp.
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*/
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extern offset op22size(line_p lnp);
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/*
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* Return the size of the second operand of the
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* binary operator in lnp.
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*/
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extern offset op13size(line_p lnp);
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/*
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* Return the size of the first operand of the
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* ternary operator in lnp.
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*/
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extern offset op23size(line_p lnp);
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/*
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* Return the size of the second operand of the
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* ternary operator in lnp.
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*/
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extern offset op33size(line_p lnp);
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/*
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* Return the size of the third operand of the
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* ternary operator in lnp.
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*/
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extern offset avsize(line_p lnp);
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/*
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* Return the size of the result of the
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* operator in lnp.
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*/
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extern int regtype(byte instr);
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/*
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* Return in what kind of machine-register
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* the result of instr should be stored:
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* pointer, float, or any.
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*/
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