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Add sign-extending make-immediate instruction

* 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

View file

@ -44,6 +44,7 @@ SCM_SYMBOL (sym_bang, "!");
M(X8_L24) \
M(X8_C24) \
M(X8_S8_I16) \
M(X8_S8_ZI16) \
M(X8_S12_S12) \
M(X8_S12_C12) \
M(X8_S12_Z12) \