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Initial implementation of send

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This commit is contained in:
Takashi Kokubun 2023-01-07 21:24:30 -08:00
parent d09c723975
commit fa0b9c1c97
8 changed files with 354 additions and 67 deletions
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32
lib/ruby_vm/mjit/assembler.rb
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@ -136,6 +136,10 @@ module RubyVM::MJIT
in Integer => dst_addr
# E9 cd
insn(opcode: 0xe9, imm: rel32(dst_addr))
# JMP r/m64 (Mod 01: [reg]+disp8)
in [Symbol => dst_reg, Integer => dst_disp] if imm8?(dst_disp)
# FF /4
insn(opcode: 0xff, mod_rm: ModRM[mod: Mod01, reg: 4, rm: dst_reg], disp: dst_disp)
# JMP r/m64 (Mod 11: reg)
in Symbol => dst_reg
# FF /4
@ -145,6 +149,17 @@ module RubyVM::MJIT
end
end
def jne(dst)
case dst
# JNE rel32
in Integer => dst_addr
# 0F 85 cd
insn(opcode: [0x0f, 0x85], imm: rel32(dst_addr))
else
raise NotImplementedError, "jne: not-implemented operands: #{dst.inspect}"
end
end
def jnz(dst)
case dst
# JNZ rel32
@ -182,6 +197,23 @@ module RubyVM::MJIT
end
end
def lea(dst, src)
case [dst, src]
# LEA r64,m (Mod 01: [reg]+disp8)
in [Symbol => dst_reg, [Symbol => src_reg, Integer => src_disp]] if r64?(dst_reg) && r64?(src_reg) && imm8?(src_disp)
# REX.W + 8D /r
# RM: Operand 1: ModRM:reg (w), Operand 2: ModRM:r/m (r)
insn(
prefix: REX_W,
opcode: 0x8d,
mod_rm: ModRM[mod: Mod01, reg: dst_reg, rm: src_reg],
disp: src_disp,
)
else
raise NotImplementedError, "lea: not-implemented operands: #{dst.inspect}, #{src.inspect}"
end
end
def mov(dst, src)
case dst
in Symbol => dst_reg