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Add sign-extending make-immediate instruction

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* doc/ref/vm.texi (Instruction Set, Constant Instructions): Document new
  instruction.
* libguile/instructions.c (FOR_EACH_INSTRUCTION_WORD_TYPE): New first
  word kind with zi16 operand.
* libguile/jit.c (compile_make_immediate, compile_make_immediate_slow):
  New compilers.
  (COMPILE_X8_S8_ZI16): New operand kind.
* libguile/vm-engine.c (make-immediate): New instruction.
* module/language/bytecode.scm:
* module/system/vm/assembler.scm (encode-X8_S8_ZI16<-/shuffle):
  (signed-bits, load-constant): Support the new instruction kind.
* module/system/vm/disassembler.scm (disassemblers)
  (sign-extended-immediate, code-annotation): Support for zi16
  operands.
This commit is contained in:
Andy Wingo 2020-07-30 17:36:11 +02:00
parent f13b27a4cc
commit 172e5ccfc1
7 changed files with 88 additions and 5 deletions
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module/language/bytecode.scm
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@ -44,6 +44,7 @@
((X8_C24) 1)
((X8_L24) 1)
((X8_S8_I16) 2)
((X8_S8_ZI16) 2)
((X8_S12_S12) 2)
((X8_S12_C12) 2)
((X8_S12_Z12) 2)