56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
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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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* 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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* 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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* 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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* 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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* 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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* 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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* 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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* 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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* 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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* 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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