284 lines
16 KiB
C
284 lines
16 KiB
C
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/******************************** -*- C -*- ****************************
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*
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* Platform-independent layer (Sparc version)
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*
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***********************************************************************/
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/***********************************************************************
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*
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* Copyright 2000, 2001, 2002 Free Software Foundation, Inc.
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* Written by Paolo Bonzini.
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*
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* This file is part of GNU lightning.
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*
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* GNU lightning is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation; either version 2.1, or (at your option)
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* any later version.
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*
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* GNU lightning is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with GNU lightning; see the file COPYING.LESSER; if not, write to the
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* Free Software Foundation, 59 Temple Place - Suite 330, Boston,
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* MA 02111-1307, USA.
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*
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***********************************************************************/
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#ifndef __lightning_core_h
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#define __lightning_core_h
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#define JIT_R0 _Rl(0)
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#define JIT_R1 _Rl(1)
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#define JIT_R2 _Rl(2)
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#define JIT_V0 _Rl(3)
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#define JIT_V1 _Rl(4)
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#define JIT_V2 _Rl(5)
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#define JIT_BIG _Rg(1) /* %g1 used to make 32-bit operands */
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#define JIT_BIG2 _Rg(2) /* %g2 used to make 32-bit compare operands */
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#define JIT_SP _Ro(6)
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#define JIT_RZERO _Rg(0)
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#define JIT_RET _Ri(0)
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/* Delay slot scheduling: jmp generates branches with annulled delay
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* slots; we toggle the annul bit if we can fill the slot. CALLs and
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* cond. branches have a different meaning for the annul bit, so we
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* automatically generate a NOP and eventually copy the delay insn onto
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* it. Delay slots in RET are already used for RESTORE, so we don't
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* schedule them.
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*
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* ,--- _jit.pc
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* insn X X before
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* cmp branch insn X X after (branch)
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* `--- _jit.pc
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* call insn insn X after (call)
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* `--- _jit.pc
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*/
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struct jit_local_state {
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int nextarg_put; /* Next %o reg. to be written */
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int nextarg_get; /* Next %i reg. to be read */
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jit_insn delay;
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};
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#define jit_fill_delay_after(branch) (_jitl.delay = *--_jit.pc, \
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((branch) == _jit.pc /* check if NOP was inserted */ \
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? (_jit.pc[-1] ^= 1<<29) /* no if branch, toggle annul bit */ \
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: (_jit.pc[-1] = _jitl.delay)), /* yes if call, replace NOP with delay insn */ \
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*_jit.pc = _jitl.delay, _jit.pc - 1) /* return addr of delay insn */
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/* If possible, use the `small' instruction (rs, imm, rd)
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* else load imm into %l6 and use the `big' instruction (rs, %l6, rd)
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* jit_chk_imm2 uses %l7 instead of %l6 to avoid conflicts when using delay slots
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*/
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#define jit_chk_imm(imm, small, big) (_siP(13,(imm)) ? (small) : (SETir((imm), JIT_BIG), (big)) )
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#define jit_chk_imm2(imm, small, big) (_siP(13,(imm)) ? (small) : (SETir((imm), JIT_BIG2), (big)) )
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/* Helper macros for branches */
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#define jit_branchi(rs, is, jmp, nop) (jit_chk_imm2(is, CMPri(rs, is), CMPrr(rs, JIT_BIG2)), jmp, nop, _jit.pc - 1)
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#define jit_branchr(s1, s2, jmp, nop) ( CMPrr(s1, s2), jmp, nop, _jit.pc - 1)
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/* Helper macros for boolean tests -- delay slot sets d to 1;
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* taken branch leaves it to 1, not-taken branch resets it to 0 */
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#define jit_booli(d, rs, is, jmp) (jit_chk_imm (is, CMPri(rs, is), CMPrr(rs, JIT_BIG)), jmp, MOVir(1, (d)), MOVir(0, (d)))
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#define jit_boolr(d, s1, s2, jmp) ( CMPrr(s1, s2), jmp, MOVir(1, (d)), MOVir(0, (d)))
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/* Helper macros for division
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* The architecture specifies that there must be 3 instructions between *
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* a y register write and a use of it for correct results. */
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#define jit_prepare_y(rs, is) (SRArir(rs, 31, JIT_BIG), WRri(JIT_BIG, _y), NOP(), NOP(), NOP(), _jit.pc -= jit_immsize(is))
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#define jit_clr_y(rs, is) ( WRri(0, _y), NOP(), NOP(), NOP(), _jit.pc -= jit_immsize(is))
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/* How many instruction are needed by `set imm, %l6' */
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#define jit_immsize(imm) (_siP(13, (imm)) ? 0 : \
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((imm) & 0x3ff ? 2 : 1))
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/* branch instructions return the address of the *delay* instruction -- this
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* is just a helper macro that makes jit_patch more readable.
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*/
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#define jit_patch_(jump_pc) \
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(*jump_pc &= ~_MASK(22), \
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*jump_pc |= ((_UL(_jit.pc) - _UL(jump_pc)) >> 2) & _MASK(22))
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/* helper macros for remainder -- it is said that _rem and _urem
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* trash the output registers
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*
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* jit_modr jit_modi
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*-----------------------------------------------------------------------------
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* mov %o0, %l7 mov %o0, %l7 ! save o0
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* mov s1, %o0 mov rs, %o0
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* mov %o1, %l6 ! save o1
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* mov s2, %o1
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* save %sp, -96, %sp save %sp, -96, %sp ! switch window
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* mov %i1, %o1 set is, %o1 ! transfer/set divisor
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* call f ! call the function
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* mov %i0, %o0 mov %i0, %o0 ! transfer dividend
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* mov %o0, %i0 mov %o0, %i0 ! transfer result
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* restore restore ! switch to old window
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* mov %o0, d mov %o0, d ! store result
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* mov %l7, %o0 mov %o0, %l7 ! restore o0
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* mov %l6, %o1 ! restore o1
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*/
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#define jit_mod(d, rs, f, before_save, set_o1, at_end) ( \
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MOVrr(_Ro(0), _Rl(7)), \
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MOVrr(rs, _Ro(0)), \
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before_save, \
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SAVErir(JIT_SP, -96, JIT_SP), \
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set_o1, \
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CALLi( (unsigned long) f), \
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MOVrr(_Ri(0), _Ro(0)), \
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MOVrr(_Ro(0), _Ri(0)), \
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RESTORE(), \
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MOVrr(_Ro(0), d), \
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MOVrr(_Rl(7), _Ro(0)), \
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at_end) \
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#define jit_modi(d, rs, is, f) jit_mod(d, s1, f, 0, SETir((is), _Ro(1)), 0)
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#define jit_modr(d, s1, s2, f) jit_mod(d, s1, f, (MOVrr(_Ro(1), _Rl(6)), MOVrr(s2, _Ro(1)), MOVrr(_Ri(1), _Ro(1)), MOVrr(_Rl(6), _Ro(1)) ))
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#define jit_arg_c() (_jitl.nextarg_get++)
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#define jit_arg_i() (_jitl.nextarg_get++)
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#define jit_arg_l() (_jitl.nextarg_get++)
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#define jit_arg_p() (_jitl.nextarg_get++)
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#define jit_arg_s() (_jitl.nextarg_get++)
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#define jit_arg_uc() (_jitl.nextarg_get++)
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#define jit_arg_ui() (_jitl.nextarg_get++)
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#define jit_arg_ul() (_jitl.nextarg_get++)
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#define jit_arg_us() (_jitl.nextarg_get++)
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#define jit_addi_i(d, rs, is) jit_chk_imm((is), ADDrir((rs), (is), (d)), ADDrrr((rs), JIT_BIG, (d)))
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#define jit_addr_i(d, s1, s2) ADDrrr((s1), (s2), (d))
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#define jit_addci_i(d, rs, is) jit_chk_imm((is), ADDCCrir((rs), (is), (d)), ADDCCrrr((rs), JIT_BIG, (d)))
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#define jit_addcr_i(d, s1, s2) ADDCCrrr((s1), (s2), (d))
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#define jit_addxi_i(d, rs, is) jit_chk_imm((is), ADDXCCrir((rs), (is), (d)), ADDXCCrrr((rs), JIT_BIG, (d)))
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#define jit_addxr_i(d, s1, s2) ADDXCCrrr((s1), (s2), (d))
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#define jit_andi_i(d, rs, is) jit_chk_imm((is), ANDrir((rs), (is), (d)), ANDrrr((rs), JIT_BIG, (d)))
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#define jit_andr_i(d, s1, s2) ANDrrr((s1), (s2), (d))
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#define jit_beqi_i(label, rs, is) jit_branchi((rs), (is), BEi((label)), NOP() )
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#define jit_beqr_i(label, s1, s2) jit_branchr((s1), (s2), BEi((label)), NOP() )
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#define jit_bgei_i(label, rs, is) jit_branchi((rs), (is), BGEi((label)), NOP() )
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#define jit_bgei_ui(label, rs, is) jit_branchi((rs), (is), BGEUi((label)), NOP() )
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#define jit_bger_i(label, s1, s2) jit_branchr((s1), (s2), BGEi((label)), NOP() )
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#define jit_bger_ui(label, s1, s2) jit_branchr((s1), (s2), BGEUi((label)), NOP() )
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#define jit_bgti_i(label, rs, is) jit_branchi((rs), (is), BGi((label)), NOP() )
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#define jit_bgti_ui(label, rs, is) jit_branchi((rs), (is), BGUi((label)), NOP() )
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#define jit_bgtr_i(label, s1, s2) jit_branchr((s1), (s2), BGi((label)), NOP() )
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#define jit_bgtr_ui(label, s1, s2) jit_branchr((s1), (s2), BGUi((label)), NOP() )
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#define jit_blei_i(label, rs, is) jit_branchi((rs), (is), BLEi((label)), NOP() )
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#define jit_blei_ui(label, rs, is) jit_branchi((rs), (is), BLEUi((label)), NOP() )
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#define jit_bler_i(label, s1, s2) jit_branchr((s1), (s2), BLEi((label)), NOP() )
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#define jit_bler_ui(label, s1, s2) jit_branchr((s1), (s2), BLEUi((label)), NOP() )
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#define jit_blti_i(label, rs, is) jit_branchi((rs), (is), BLi((label)), NOP() )
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#define jit_blti_ui(label, rs, is) jit_branchi((rs), (is), BLUi((label)), NOP() )
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#define jit_bltr_i(label, s1, s2) jit_branchr((s1), (s2), BLi((label)), NOP() )
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#define jit_bltr_ui(label, s1, s2) jit_branchr((s1), (s2), BLUi((label)), NOP() )
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#define jit_bnei_i(label, rs, is) jit_branchi((rs), (is), BNEi((label)), NOP() )
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#define jit_bner_i(label, s1, s2) jit_branchr((s1), (s2), BNEi((label)), NOP() )
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#define jit_bmsi_i(label, rs, is) (jit_chk_imm((is), BTSTir((is), (rs)), BTSTrr((rs), JIT_BIG)), BNEi((label)), NOP(), _jit.pc - 1)
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#define jit_bmci_i(label, rs, is) (jit_chk_imm((is), BTSTir((is), (rs)), BTSTrr((rs), JIT_BIG)), BEi((label)), NOP(), _jit.pc - 1)
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#define jit_bmsr_i(label, s1, s2) ( BTSTrr((s1), (s2)), BNEi((label)), NOP(), _jit.pc - 1)
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#define jit_bmcr_i(label, s1, s2) ( BTSTrr((s1), (s2)), BEi((label)), NOP(), _jit.pc - 1)
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#define jit_boaddi_i(label, rs, is) (jit_chk_imm((is), ADDCCrir((rs), (is), (rs)), ADDCCrrr((rs), JIT_BIG, (rs))), BVSi((label)), NOP(), _jit.pc - 1)
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#define jit_bosubi_i(label, rs, is) (jit_chk_imm((is), SUBCCrir((rs), (is), (rs)), SUBCCrrr((rs), JIT_BIG, (rs))), BVSi((label)), NOP(), _jit.pc - 1)
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#define jit_boaddr_i(label, s1, s2) ( ADDCCrrr((s1), (s2), (s1)), BVSi((label)), NOP(), _jit.pc - 1)
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#define jit_bosubr_i(label, s1, s2) ( SUBCCrrr((s1), (s2), (s1)), BVSi((label)), NOP(), _jit.pc - 1)
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#define jit_boaddi_ui(label, rs, is) (jit_chk_imm((is), ADDCCrir((rs), (is), (rs)), ADDCCrrr((rs), JIT_BIG, (rs))), BCSi((label)), NOP(), _jit.pc - 1)
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#define jit_bosubi_ui(label, rs, is) (jit_chk_imm((is), SUBCCrir((rs), (is), (rs)), SUBCCrrr((rs), JIT_BIG, (rs))), BCSi((label)), NOP(), _jit.pc - 1)
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#define jit_boaddr_ui(label, s1, s2) ( ADDCCrrr((s1), (s2), (s1)), BCSi((label)), NOP(), _jit.pc - 1)
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#define jit_bosubr_ui(label, s1, s2) ( SUBCCrrr((s1), (s2), (s1)), BCSi((label)), NOP(), _jit.pc - 1)
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#define jit_calli(label) (CALLi(label), NOP(), _jit.pc - 1)
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#define jit_divi_i(d, rs, is) (jit_prepare_y((rs), (is)), jit_chk_imm((is), SDIVrir((rs), (is), (d)), SDIVrrr((rs), JIT_BIG, (d))) )
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#define jit_divi_ui(d, rs, is) (jit_clr_y((rs)), (is)), jit_chk_imm((is), UDIVrir((rs), (is), (d)), UDIVrrr((rs), JIT_BIG, (d))) )
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#define jit_divr_i(d, s1, s2) (jit_prepare_y((s1), 3), SDIVrrr((s1), (s2), (d)))
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#define jit_divr_ui(d, s1, s2) (jit_clr_y((s1), 3), UDIVrrr((s1), (s2), (d)))
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#define jit_eqi_i(d, rs, is) jit_chk_imm((is), \
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(SUBCCrir((rs), (is), (d)), ADDXCCrir((d), -1, JIT_BIG), SUBXrir(0,-1,(d))),\
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jit_eqr_i(d, rs, JIT_BIG))
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#define jit_eqr_i(d, s1, s2) (SUBCCrrr((s1), (s2), (d)), ADDXCCrir((d), -1, JIT_BIG), SUBXrir(0,-1,(d)))
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#define jit_nei_i(d, rs, is) jit_chk_imm((is), \
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(SUBCCrir((rs), (is), (d)), ADDXCCrir((d), -1, JIT_BIG), ADDXrrr(0,0,(d))),\
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jit_ner_i(d, rs, JIT_BIG))
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#define jit_ner_i(d, s1, s2) (SUBCCrrr((s1), (s2), (d)), ADDXCCrir((d), -1, JIT_BIG), ADDXrrr(0,0,(d)))
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#define jit_gei_i(d, rs, is) jit_booli ((d), (rs), (is), BGEi(_jit.pc + 3) )
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#define jit_gei_ui(d, rs, is) jit_booli ((d), (rs), (is), BGEUi(_jit.pc + 3))
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#define jit_ger_i(d, s1, s2) jit_boolr ((d), (s1), (s2), BGEi(_jit.pc + 3) )
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#define jit_ger_ui(d, s1, s2) jit_boolr ((d), (s1), (s2), BGEUi(_jit.pc + 3))
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#define jit_gti_i(d, rs, is) jit_booli ((d), (rs), (is), BGi(_jit.pc + 3) )
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#define jit_gti_ui(d, rs, is) jit_booli ((d), (rs), (is), BGUi(_jit.pc + 3) )
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#define jit_gtr_i(d, s1, s2) jit_boolr ((d), (s1), (s2), BGi(_jit.pc + 3) )
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#define jit_gtr_ui(d, s1, s2) jit_boolr ((d), (s1), (s2), BGUi(_jit.pc + 3) )
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#define jit_hmuli_i(d, rs, is) (jit_muli_i (JIT_BIG, (rs), (is)), RDir (_y, (d)))
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#define jit_hmuli_ui(d, rs, is) (jit_muli_ui(JIT_BIG, (rs), (is)), RDir (_y, (d)))
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#define jit_hmulr_i(d, s1, s2) (jit_mulr_i (JIT_BIG, (s1), (s2)), RDir (_y, (d)))
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#define jit_hmulr_ui(d, s1, s2) (jit_mulr_ui(JIT_BIG, (s1), (s2)), RDir (_y, (d)))
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#define jit_jmpi(label) (BA_Ai((label)), _jit.pc)
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#define jit_jmpr(reg) (JMPx(JIT_RZERO, (reg)), NOP(), _jit.pc - 1)
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#define jit_ldxi_c(d, rs, is) jit_chk_imm((is), LDSBmr((rs), (is), (d)), LDSBxr((rs), JIT_BIG, (d)))
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#define jit_ldxi_i(d, rs, is) jit_chk_imm((is), LDSWmr((rs), (is), (d)), LDSWxr((rs), JIT_BIG, (d)))
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#define jit_ldxi_s(d, rs, is) jit_chk_imm((is), LDSHmr((rs), (is), (d)), LDSHxr((rs), JIT_BIG, (d)))
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#define jit_ldxi_uc(d, rs, is) jit_chk_imm((is), LDUBmr((rs), (is), (d)), LDUBxr((rs), JIT_BIG, (d)))
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#define jit_ldxi_us(d, rs, is) jit_chk_imm((is), LDUHmr((rs), (is), (d)), LDUHxr((rs), JIT_BIG, (d)))
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#define jit_ldxr_c(d, s1, s2) LDSBxr((s1), (s2), (d))
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#define jit_ldxr_i(d, s1, s2) LDSWxr((s1), (s2), (d))
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#define jit_ldxr_s(d, s1, s2) LDSHxr((s1), (s2), (d))
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#define jit_ldxr_uc(d, s1, s2) LDUBxr((s1), (s2), (d))
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#define jit_ldxr_us(d, s1, s2) LDUHxr((s1), (s2), (d))
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#define jit_lei_i(d, rs, is) jit_booli ((d), (rs), (is), BLEi(_jit.pc + 3) )
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#define jit_lei_ui(d, rs, is) jit_booli ((d), (rs), (is), BLEUi(_jit.pc + 3))
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#define jit_ler_i(d, s1, s2) jit_boolr ((d), (s1), (s2), BLEi(_jit.pc + 3) )
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#define jit_ler_ui(d, s1, s2) jit_boolr ((d), (s1), (s2), BLEUi(_jit.pc + 3))
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#define jit_lshi_i(d, rs, is) SLLrir((rs), (is), (d))
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#define jit_lshr_i(d, r1, r2) SLLrrr((r1), (r2), (d))
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#define jit_lti_i(d, rs, is) jit_booli ((d), (rs), (is), BLi(_jit.pc + 3) )
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#define jit_lti_ui(d, rs, is) jit_booli ((d), (rs), (is), BLUi(_jit.pc + 3) )
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#define jit_ltr_i(d, s1, s2) jit_boolr ((d), (s1), (s2), BLi(_jit.pc + 3) )
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#define jit_ltr_ui(d, s1, s2) jit_boolr ((d), (s1), (s2), BLUi(_jit.pc + 3) )
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#define jit_modi_i(d, rs, is) jit_modi((d), (rs), (is), _rem)
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#define jit_modi_ui(d, rs, is) jit_modi((d), (rs), (is), _urem)
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#define jit_modr_i(d, s1, s2) jit_modr((d), (s1), (s2), _rem)
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#define jit_modr_ui(d, s1, s2) jit_modr((d), (s1), (s2), _urem)
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#define jit_movi_i(d, is) SETir((is), (d))
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#define jit_movr_i(d, rs) MOVrr((rs), (d))
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#define jit_muli_i(d, rs, is) jit_chk_imm((is), SMULrir((rs), (is), (d)), SMULrrr((rs), JIT_BIG, (d)))
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#define jit_muli_ui(d, rs, is) jit_chk_imm((is), UMULrir((rs), (is), (d)), UMULrrr((rs), JIT_BIG, (d)))
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#define jit_mulr_i(d, s1, s2) SMULrrr((s1), (s2), (d))
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#define jit_mulr_ui(d, s1, s2) UMULrrr((s1), (s2), (d))
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#define jit_nop() NOP()
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#define jit_ori_i(d, rs, is) jit_chk_imm((is), ORrir((rs), (is), (d)), ORrrr((rs), JIT_BIG, (d)))
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#define jit_orr_i(d, s1, s2) ORrrr((s1), (s2), (d))
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#define jit_patch(delay_pc) jit_patch_ ( ((delay_pc) - 1) )
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#define jit_popr_i(rs) (LDmr(JIT_SP, 0, (rs)), ADDrir(JIT_SP, 8, JIT_SP))
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#define jitfp_prepare(numargs, nf, nd) (_jitl.nextarg_put = (numargs))
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#define jit_prolog(numargs) (SAVErir(JIT_SP, -96, JIT_SP), _jitl.nextarg_get = _Ri(0))
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#define jit_pushr_i(rs) (STrm((rs), JIT_SP, -8), SUBrir(JIT_SP, 8, JIT_SP))
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#define jit_pusharg_i(rs) (--_jitl.nextarg_put, MOVrr((rs), _Ro(_jitl.nextarg_put)))
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#define jit_ret() (RET(), RESTORE())
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#define jit_retval(rd) MOVrr(_Ro(0), (rd))
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#define jit_rshi_i(d, rs, is) SRArir((rs), (is), (d))
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#define jit_rshi_ui(d, rs, is) SRLrir((rs), (is), (d))
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#define jit_rshr_i(d, r1, r2) SRArrr((r1), (r2), (d))
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#define jit_rshr_ui(d, r1, r2) SRLrrr((r1), (r2), (d))
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#define jit_stxi_c(id, rd, rs) jit_chk_imm((id), STBrm((rs), (rd), (id)), STBrx((rs), (rd), JIT_BIG))
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#define jit_stxi_i(id, rd, rs) jit_chk_imm((id), STWrm((rs), (rd), (id)), STWrx((rs), (rd), JIT_BIG))
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#define jit_stxi_s(id, rd, rs) jit_chk_imm((id), STHrm((rs), (rd), (id)), STHrx((rs), (rd), JIT_BIG))
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#define jit_stxr_c(d1, d2, rs) STBrx((rs), (d1), (d2))
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#define jit_stxr_i(d1, d2, rs) STWrx((rs), (d1), (d2))
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#define jit_stxr_s(d1, d2, rs) STHrx((rs), (d1), (d2))
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#define jit_subr_i(d, s1, s2) SUBrrr((s1), (s2), (d))
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#define jit_subcr_i(d, s1, s2) SUBCCrrr((s1), (s2), (d))
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#define jit_subxi_i(d, rs, is) jit_chk_imm((is), SUBXCCrir((rs), (is), (d)), SUBXCCrrr((rs), JIT_BIG, (d)))
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#define jit_subxr_i(d, s1, s2) SUBXCCrrr((s1), (s2), (d))
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#define jit_xori_i(d, rs, is) jit_chk_imm((is), XORrir((rs), (is), (d)), XORrrr((rs), JIT_BIG, (d)))
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#define jit_xorr_i(d, s1, s2) XORrrr((s1), (s2), (d))
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#endif /* __lightning_core_h */
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