diff options
| author | Takashi Kokubun <[email protected]> | 2023-02-09 16:25:06 -0800 |
|---|---|---|
| committer | Takashi Kokubun <[email protected]> | 2023-03-05 22:41:35 -0800 |
| commit | 494989e87e5095a2789c110972c0a1a43f544601 (patch) | |
| tree | e7cdcb2e62211e0f1d0cb4e7fc0b113a3485074c /lib/ruby_vm/mjit/assembler.rb | |
| parent | e8c13e55fb84ae55299f4d97cd3f9042e07dc4cf (diff) | |
Partially implement send of cfunc
Diffstat (limited to 'lib/ruby_vm/mjit/assembler.rb')
| -rw-r--r-- | lib/ruby_vm/mjit/assembler.rb | 34 |
1 files changed, 30 insertions, 4 deletions
diff --git a/lib/ruby_vm/mjit/assembler.rb b/lib/ruby_vm/mjit/assembler.rb index 40e8827046..f8543c4a66 100644 --- a/lib/ruby_vm/mjit/assembler.rb +++ b/lib/ruby_vm/mjit/assembler.rb @@ -3,6 +3,9 @@ module RubyVM::MJIT # 32-bit memory access class DwordPtr < Data.define(:reg, :disp); end + # C call argument registers + C_ARG_OPNDS = [:rdi, :rsi, :rdx, :rcx, :r8, :r9] + # https://www.intel.com/content/dam/develop/public/us/en/documents/325383-sdm-vol-2abcd.pdf # Mostly an x86_64 assembler, but this also has some stuff that is useful for any architecture. class Assembler @@ -118,11 +121,24 @@ module RubyVM::MJIT end end - # @param addr [Integer] - def call(addr) + def call(dst) + case dst # CALL rel32 - # E8 cd - insn(opcode: 0xe8, imm: rel32(addr)) + in Integer => dst_addr + # E8 cd + # D: Operand 1: Offset + insn(opcode: 0xe8, imm: rel32(dst_addr)) + # CALL r/m64 (Mod 11: reg) + in Symbol => dst_reg + # FF /2 + # M: Operand 1: ModRM:r/m (r) + insn( + opcode: 0xff, + mod_rm: ModRM[mod: Mod11, reg: 2, rm: dst_reg], + ) + else + raise NotImplementedError, "call: not-implemented operands: #{dst.inspect}" + end end def cmovl(dst, src) @@ -458,6 +474,16 @@ module RubyVM::MJIT mod_rm: ModRM[mod: Mod01, reg: src_reg, rm: dst_reg], disp: dst_disp, ) + # MOV r/m64, r64 (Mod 10: [reg]+disp32) + in Symbol => src_reg if r64?(dst_reg) && imm32?(dst_disp) && r64?(src_reg) + # REX.W + 89 /r + # MR: Operand 1: ModRM:r/m (w), Operand 2: ModRM:reg (r) + insn( + prefix: REX_W, + opcode: 0x89, + mod_rm: ModRM[mod: Mod10, reg: src_reg, rm: dst_reg], + disp: imm32(dst_disp), + ) else raise NotImplementedError, "mov: not-implemented operands: #{dst.inspect}, #{src.inspect}" end |