mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2025-01-06 12:09:26 +08:00
bdfe53e3cf
The current handling for arc instructions longer than 32-bits is all handled as a special case in both the assembler and disassembler. The problem with this approach is that it leads to code duplication, selecting a long instruction is exactly the same process as selecting a short instruction, except over more bits, in both cases we select based on bit comparison, and initial operand insertion and extraction. This commit unifies both the long and short instruction worlds, converting the core opcodes library from being largely 32-bit focused, to being largely 64-bit focused. The changes are, on the whole, not too much. There's obviously a lot of type changes but otherwise the bulk of the code just works. Most of the actual functional changes are to code that previously handled the longer 48 or 64 bit instructions. The insert/extract handlers for these have now been brought into line with the short instruction insert/extract handlers. All of the special case handling code that was previously added has now been removed again. Overall, this commit reduces the amount of code in the arc assembler and disassembler. gas/ChangeLog: * config/tc-arc.c (struct arc_insn): Change type of insn field. (md_number_to_chars_midend): Support 6- and 8-byte values. (emit_insn0): Update debug output. (find_opcode_match): Likewise. (build_fake_opcode_hash_entry): Delete. (find_special_case_long_opcode): Delete. (find_special_case): Remove long format special case handling. (insert_operand): Change instruction type and update debug print format. (assemble_insn): Change instruction type, update debug print formats, and remove unneeded assert. include/ChangeLog: * opcode/arc.h (struct arc_opcode): Change type of opcode and mask fields. (struct arc_long_opcode): Delete. (struct arc_operand): Change types for insert and extract handlers. opcodes/ChangeLog: * arc-dis.c (struct arc_operand_iterator): Remove all fields relating to long instruction processing, add new limm field. (OPCODE): Rename to... (OPCODE_32BIT_INSN): ...this. (OPCODE_AC): Delete. (skip_this_opcode): Handle different instruction lengths, update macro name. (special_flag_p): Update parameter type. (find_format_from_table): Update for more instruction lengths. (find_format_long_instructions): Delete. (find_format): Update for more instruction lengths. (arc_insn_length): Likewise. (extract_operand_value): Update for more instruction lengths. (operand_iterator_next): Remove code relating to long instructions. (arc_opcode_to_insn_type): New function. (print_insn_arc):Update for more instructions lengths. * arc-ext.c (extInstruction_t): Change argument type. * arc-ext.h (extInstruction_t): Change argument type. * arc-fxi.h: Change type unsigned to unsigned long long extensively throughout. * arc-nps400-tbl.h: Add long instructions taken from arc_long_opcodes table in arc-opc.c. * arc-opc.c: Update parameter types on insert/extract handlers. (arc_long_opcodes): Delete. (arc_num_long_opcodes): Delete. (arc_opcode_len): Update for more instruction lengths. |
||
|---|---|---|
| .. | ||
| aarch64.h | ||
| alpha.h | ||
| arc-func.h | ||
| arc.h | ||
| arm.h | ||
| avr.h | ||
| bfin.h | ||
| cgen.h | ||
| ChangeLog-0415 | ||
| ChangeLog-9103 | ||
| convex.h | ||
| cr16.h | ||
| cris.h | ||
| crx.h | ||
| d10v.h | ||
| d30v.h | ||
| dlx.h | ||
| ft32.h | ||
| h8300.h | ||
| hppa.h | ||
| i370.h | ||
| i386.h | ||
| i860.h | ||
| i960.h | ||
| ia64.h | ||
| m68hc11.h | ||
| m68k.h | ||
| m88k.h | ||
| metag.h | ||
| mips.h | ||
| mmix.h | ||
| mn10200.h | ||
| mn10300.h | ||
| moxie.h | ||
| msp430-decode.h | ||
| msp430.h | ||
| nds32.h | ||
| nios2.h | ||
| nios2r1.h | ||
| nios2r2.h | ||
| np1.h | ||
| ns32k.h | ||
| pdp11.h | ||
| pj.h | ||
| pn.h | ||
| ppc.h | ||
| pyr.h | ||
| riscv-opc.h | ||
| riscv.h | ||
| rl78.h | ||
| rx.h | ||
| s390.h | ||
| score-datadep.h | ||
| score-inst.h | ||
| sparc.h | ||
| spu-insns.h | ||
| spu.h | ||
| tahoe.h | ||
| tic4x.h | ||
| tic6x-control-registers.h | ||
| tic6x-insn-formats.h | ||
| tic6x-opcode-table.h | ||
| tic6x.h | ||
| tic30.h | ||
| tic54x.h | ||
| tic80.h | ||
| tilegx.h | ||
| tilepro.h | ||
| v850.h | ||
| vax.h | ||
| visium.h | ||
| xgate.h | ||