hw/xtensa/xtensa-isa.h

20  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
48  * . an instruction buffer - for holding the raw instruction bits
73  * specific values are only fixed for a particular instantiation of an
108  * Decoding an instruction involves first finding the format, which
124  * Encoding an instruction is roughly the same procedure in reverse:
144  * xtensa_isa_ok, an error message containing additional information
146  * The error messages are stored in an internal buffer, which should
188 /* Allocate an xtensa_insnbuf of the right size. */
193 /* Release an xtensa_insnbuf. */
230 /* Deallocate an xtensa_isa structure. */
241  * Decode the length in bytes of an instruction in raw memory (not an
313  * Find the length (in bytes) of an instruction. Returns
321  * Get the number of slots in an instruction. Returns XTENSA_UNDEFINED
338  * Get the bits for a specified slot out of an insnbuf for the
339  * instruction as a whole and put them into an insnbuf for that one
354  * Translate a mnemonic name to an opcode. Returns XTENSA_UNDEFINED if
372  * Set the opcode field(s) for an instruction slot. All other fields
381 /* Get the mnemonic name for an opcode. Returns null on error. */
397  * target may be specified by an immediate operand or it may be an
414  * operands for an instruction. These return XTENSA_UNDEFINED on
426  * Get functional unit usage requirements for an opcode. Each "use"
447 /* Get the name of an operand. Returns null on error. */
454  * assembly language. When assembling an instruction, you need not set
458  * an invisible operand may get its value from another visible one, so
460  * invisible operand values. This function returns 1 if an operand is
462  * that whether an operand is visible is orthogonal to whether it is
471  * Check if an operand is an input ('i'), output ('o'), or inout ('m')
473  * (e.g., movnez) appears here as an inout ('m') even if it is declared
474  * in the TIE code as an output ('o'); this allows the compiler to
514  * An operand may be either a register operand or an immediate of some
516  * 0 if the operand is an immediate, 1 if it is a register, and
541  * accessed. For example, the operand value may be added to an internal
553  * Check if an immediate operand is PC-relative. Returns 0 for register
597  * Check if a state operand is an input ('i'), output ('o'), or inout
608  * Get the external interface accessed by an interface operand.
758  * Find an interface by name. The return value is XTENSA_UNDEFINED if
765 /* Get the name of an interface. Returns null on error. */
771  * Get the bit width for an interface.
779  * Check if an interface is an input ('i') or output ('o') with respect
787  * Check if accessing an interface has potential side effects.
801  * returns the class identifier for an interface, or XTENSA_UNDEFINED