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Implement Array#[]

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This commit is contained in:
Takashi Kokubun 2023-02-13 22:23:22 -08:00
parent 51d36c7b34
commit 73a5b3d5d2
Notes: git 2023-03-06 07:30:04 +00:00
5 changed files with 66 additions and 9 deletions
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16
lib/ruby_vm/mjit/assembler.rb
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@ -575,6 +575,22 @@ module RubyVM::MJIT
insn(opcode: 0xc3)
end
def sar(dst, src)
case [dst, src]
in [Symbol => dst_reg, Integer => src_imm] if r64?(dst_reg) && imm8?(src_imm)
# REX.W + C1 /7 ib
# MI: Operand 1: ModRM:r/m (r, w), Operand 2: imm8
insn(
prefix: REX_W,
opcode: 0xc1,
mod_rm: ModRM[mod: Mod11, reg: 7, rm: dst_reg],
imm: imm8(src_imm),
)
else
raise NotImplementedError, "sar: not-implemented operands: #{dst.inspect}, #{src.inspect}"
end
end
def sub(dst, src)
case [dst, src]
# SUB r/m64, imm8