mirror of
https://github.com/Q3Rally-Team/q3rally.git
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866aa787cf
Update to ioquake3 revision 3306 from 1951 of the ioq3 Github repo via subversion. Over 4 years of changes.
1670 lines
43 KiB
C
1670 lines
43 KiB
C
/*
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===========================================================================
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Copyright (C) 2009 David S. Miller <davem@davemloft.net>
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This file is part of Quake III Arena source code.
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Quake III Arena source code is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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Quake III Arena source code is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Quake III Arena source code; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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===========================================================================
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*/
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/* This code is based almost entirely upon the vm_powerpc.c code by
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* Przemyslaw Iskra. All I did was make it work on Sparc :-) -DaveM
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*/
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#include <sys/types.h>
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#include <sys/mman.h>
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#include <sys/time.h>
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#include <time.h>
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#include <stddef.h>
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#include "vm_local.h"
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#include "vm_sparc.h"
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/* exit() won't be called but use it because it is marked with noreturn */
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#define DIE( reason ) \
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do { \
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Com_Error(ERR_DROP, "vm_sparc compiler error: " reason); \
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exit(1); \
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} while(0)
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/* Select Length - first value on 32 bits, second on 64 */
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#ifdef __arch64__
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#define SL(a, b) (b)
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#else
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#define SL(a, b) (a)
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#endif
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#define rTMP G1
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#define rVMDATA G2
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#define rPSTACK G3
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#define rDATABASE G4
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#define rDATAMASK G5
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struct sparc_opcode {
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const char *name;
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unsigned int opcode;
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unsigned int mask;
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unsigned char args[4];
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#define ARG_NONE 0
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#define ARG_RS1 1
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#define ARG_RS2 2
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#define ARG_RD 3
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#define ARG_SIMM13 4
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#define ARG_DISP30 5
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#define ARG_IMM22 6
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#define ARG_DISP22 7
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#define ARG_SWTRAP 8
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};
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#define ARG_RS1_RS2_RD { ARG_RS1, ARG_RS2, ARG_RD }
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#define ARG_RS1_SIMM13_RD { ARG_RS1, ARG_SIMM13, ARG_RD }
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#define ARG_RS1_RS2 { ARG_RS1, ARG_RS2 }
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#define ARG_RS2_RD { ARG_RS2, ARG_RD }
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#define OP_MASK 0xc0000000
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#define OP2_MASK 0x01c00000
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#define OP3_MASK 0x01f80000
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#define OPF_MASK 0x00003fe0
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#define IMM 0x00002000
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#define FMT1(op) ((op) << 30), OP_MASK
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#define FMT2(op,op2) ((op) << 30)|((op2)<<22), (OP_MASK | OP2_MASK)
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#define FMT3(op,op3) ((op) << 30)|((op3)<<19), (OP_MASK | OP3_MASK | IMM)
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#define FMT3I(op,op3) ((op) << 30)|((op3)<<19)|IMM, (OP_MASK | OP3_MASK | IMM)
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#define FMT3F(op,op3,opf) ((op) << 30)|((op3)<<19)|((opf)<<5), \
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(OP_MASK | OP3_MASK | OPF_MASK)
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#define BICC(A,COND) FMT2(0,((A<<7)|(COND<<3)|0x2))
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#define BFCC(A,COND) FMT2(0,((A<<7)|(COND<<3)|0x6))
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#define TICC(COND) FMT3I(0,((COND<<6)|0x3a))
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enum sparc_iname {
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CALL, NOP, SETHI,
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BA, BN, BNE, BE, BG, BLE, BGE, BL, BGU, BLEU, BCC, BCS,
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BPOS, BNEG, BVC, BVS,
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ADDI, ADD,
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ANDI, AND,
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ORI, OR,
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XORI, XOR,
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SUBI, SUB,
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ANDNI, ANDN,
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ORNI, ORN,
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XNORI, XNOR,
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UMULI, UMUL,
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SMULI, SMUL,
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UDIVI, UDIV,
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SDIVI, SDIV,
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SUBCCI, SUBCC,
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SLLI, SLL,
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SRLI, SRL,
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SRAI, SRA,
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WRI, WR,
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SAVEI, SAVE,
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RESTOREI, RESTORE,
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TA,
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JMPLI, JMPL,
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LDXI, LDX,
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LDUWI, LDUW,
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LDUHI, LDUH,
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LDUBI, LDUB,
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STXI, STX,
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STWI, STW,
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STHI, STH,
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STBI, STB,
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LDFI, LDF,
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STFI, STF,
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FADD, FSUB, FCMP, FSTOI, FITOS, FNEG, FDIV, FMUL,
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FBE, FBNE, FBL, FBGE, FBG, FBLE,
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};
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#define LDLI SL(LDUWI, LDXI)
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#define LDL SL(LDUW, LDX)
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#define STLI SL(STWI, STXI)
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#define STL SL(STW, STX)
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#define SPARC_NOP 0x01000000
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static const struct sparc_opcode sparc_opcodes[] = {
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{ "call", FMT1(1), { ARG_DISP30 }, },
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{ "nop", SPARC_NOP, 0xffffffff, { ARG_NONE }, }, /* sethi %hi(0), %g0 */
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{ "sethi", FMT2(0,4), { ARG_IMM22, ARG_RD }, },
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{ "ba", BICC(0,8), { ARG_DISP22 }, },
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{ "bn", BICC(0,0), { ARG_DISP22 }, },
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{ "bne", BICC(0,9), { ARG_DISP22 }, },
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{ "be", BICC(0,1), { ARG_DISP22 }, },
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{ "bg", BICC(0,10), { ARG_DISP22 }, },
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{ "ble", BICC(0,2), { ARG_DISP22 }, },
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{ "bge", BICC(0,11), { ARG_DISP22 }, },
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{ "bl", BICC(0,3), { ARG_DISP22 }, },
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{ "bgu", BICC(0,12), { ARG_DISP22 }, },
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{ "bleu", BICC(0,4), { ARG_DISP22 }, },
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{ "bcc", BICC(0,13), { ARG_DISP22 }, },
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{ "bcs", BICC(0,5), { ARG_DISP22 }, },
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{ "bpos", BICC(0,14), { ARG_DISP22 }, },
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{ "bneg", BICC(0,6), { ARG_DISP22 }, },
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{ "bvc", BICC(0,15), { ARG_DISP22 }, },
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{ "bvs", BICC(0,7), { ARG_DISP22 }, },
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{ "add", FMT3I(2, 0x00), ARG_RS1_SIMM13_RD, },
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{ "add", FMT3 (2, 0x00), ARG_RS1_RS2_RD, },
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{ "and", FMT3I(2, 0x01), ARG_RS1_SIMM13_RD, },
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{ "and", FMT3 (2, 0x01), ARG_RS1_RS2_RD, },
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{ "or", FMT3I(2, 0x02), ARG_RS1_SIMM13_RD, },
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{ "or", FMT3 (2, 0x02), ARG_RS1_RS2_RD, },
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{ "xor", FMT3I(2, 0x03), ARG_RS1_SIMM13_RD, },
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{ "xor", FMT3 (2, 0x03), ARG_RS1_RS2_RD, },
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{ "sub", FMT3I(2, 0x04), ARG_RS1_SIMM13_RD, },
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{ "sub", FMT3 (2, 0x04), ARG_RS1_RS2_RD, },
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{ "andn", FMT3I(2, 0x05), ARG_RS1_SIMM13_RD, },
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{ "andn", FMT3 (2, 0x05), ARG_RS1_RS2_RD, },
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{ "orn", FMT3I(2, 0x06), ARG_RS1_SIMM13_RD, },
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{ "orn", FMT3 (2, 0x06), ARG_RS1_RS2_RD, },
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{ "xnor", FMT3I(2, 0x07), ARG_RS1_SIMM13_RD, },
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{ "xnor", FMT3 (2, 0x07), ARG_RS1_RS2_RD, },
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{ "umul", FMT3I(2, 0x0a), ARG_RS1_SIMM13_RD, },
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{ "umul", FMT3 (2, 0x0a), ARG_RS1_RS2_RD, },
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{ "smul", FMT3I(2, 0x0b), ARG_RS1_SIMM13_RD, },
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{ "smul", FMT3 (2, 0x0b), ARG_RS1_RS2_RD, },
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{ "udiv", FMT3I(2, 0x0e), ARG_RS1_SIMM13_RD, },
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{ "udiv", FMT3 (2, 0x0e), ARG_RS1_RS2_RD, },
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{ "sdiv", FMT3I(2, 0x0f), ARG_RS1_SIMM13_RD, },
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{ "sdiv", FMT3 (2, 0x0f), ARG_RS1_RS2_RD, },
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{ "subcc", FMT3I(2, 0x14), ARG_RS1_SIMM13_RD, },
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{ "subcc", FMT3 (2, 0x14), ARG_RS1_RS2_RD, },
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{ "sll", FMT3I(2, 0x25), ARG_RS1_SIMM13_RD, },
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{ "sll", FMT3 (2, 0x25), ARG_RS1_RS2_RD, },
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{ "srl", FMT3I(2, 0x26), ARG_RS1_SIMM13_RD, },
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{ "srl", FMT3 (2, 0x26), ARG_RS1_RS2_RD, },
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{ "sra", FMT3I(2, 0x27), ARG_RS1_SIMM13_RD, },
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{ "sra", FMT3 (2, 0x27), ARG_RS1_RS2_RD, },
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{ "wr", FMT3I(2, 0x30), ARG_RS1_SIMM13_RD, },
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{ "wr", FMT3 (2, 0x30), ARG_RS1_SIMM13_RD, },
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{ "save", FMT3I(2,0x3c), ARG_RS1_SIMM13_RD, },
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{ "save", FMT3 (2,0x3c), ARG_RS1_RS2_RD, },
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{ "restore", FMT3I(2,0x3d), ARG_RS1_SIMM13_RD, },
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{ "restore", FMT3 (2,0x3d), ARG_RS1_RS2_RD, },
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{ "ta", TICC(8), { ARG_SWTRAP, ARG_NONE }, },
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{ "jmpl", FMT3I(2,0x38), ARG_RS1_SIMM13_RD, },
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{ "jmpl", FMT3 (2,0x38), ARG_RS1_RS2_RD, },
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{ "ldx", FMT3I(3,0x0b), ARG_RS1_SIMM13_RD, },
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{ "ldx", FMT3 (3,0x0b), ARG_RS1_RS2_RD, },
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{ "lduw", FMT3I(3,0x00), ARG_RS1_SIMM13_RD, },
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{ "lduw", FMT3 (3,0x00), ARG_RS1_RS2_RD, },
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{ "lduh", FMT3I(3,0x02), ARG_RS1_SIMM13_RD, },
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{ "lduh", FMT3 (3,0x02), ARG_RS1_RS2_RD, },
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{ "ldub", FMT3I(3,0x01), ARG_RS1_SIMM13_RD, },
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{ "ldub", FMT3 (3,0x01), ARG_RS1_RS2_RD, },
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{ "stx", FMT3I(3,0x0e), ARG_RS1_SIMM13_RD, },
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{ "stx", FMT3 (3,0x0e), ARG_RS1_RS2_RD, },
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{ "stw", FMT3I(3,0x04), ARG_RS1_SIMM13_RD, },
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{ "stw", FMT3 (3,0x04), ARG_RS1_RS2_RD, },
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{ "sth", FMT3I(3,0x06), ARG_RS1_SIMM13_RD, },
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{ "sth", FMT3 (3,0x06), ARG_RS1_RS2_RD, },
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{ "stb", FMT3I(3,0x05), ARG_RS1_SIMM13_RD, },
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{ "stb", FMT3 (3,0x05), ARG_RS1_RS2_RD, },
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{ "ldf", FMT3I(3,0x20), ARG_RS1_SIMM13_RD, },
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{ "ldf", FMT3 (3,0x20), ARG_RS1_RS2_RD, },
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{ "stf", FMT3I(3,0x24), ARG_RS1_SIMM13_RD, },
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{ "stf", FMT3 (3,0x24), ARG_RS1_RS2_RD, },
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{ "fadd", FMT3F(2,0x34,0x041), ARG_RS1_RS2_RD, },
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{ "fsub", FMT3F(2,0x34,0x045), ARG_RS1_RS2_RD, },
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{ "fcmp", FMT3F(2,0x35,0x051), ARG_RS1_RS2, },
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{ "fstoi", FMT3F(2,0x34,0x0d1), ARG_RS2_RD, },
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{ "fitos", FMT3F(2,0x34,0x0c4), ARG_RS2_RD, },
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{ "fneg", FMT3F(2,0x34,0x005), ARG_RS2_RD, },
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{ "fdiv", FMT3F(2,0x34,0x04d), ARG_RS1_RS2_RD, },
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{ "fmul", FMT3F(2,0x34,0x049), ARG_RS1_RS2_RD, },
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{ "fbe", BFCC(0,9), { ARG_DISP22 }, },
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{ "fbne", BFCC(0,1), { ARG_DISP22 }, },
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{ "fbl", BFCC(0,4), { ARG_DISP22 }, },
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{ "fbge", BFCC(0,11), { ARG_DISP22 }, },
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{ "fbg", BFCC(0,6), { ARG_DISP22 }, },
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{ "fble", BFCC(0,13), { ARG_DISP22 }, },
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};
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#define SPARC_NUM_OPCODES (ARRAY_LEN(sparc_opcodes))
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#define RS1(X) (((X) & 0x1f) << 14)
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#define RS2(X) (((X) & 0x1f) << 0)
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#define RD(X) (((X) & 0x1f) << 25)
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#define SIMM13(X) (((X) & 0x1fff) << 0)
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#define IMM22(X) (((X) & 0x3fffff) << 0)
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#define DISP30(X) ((((X) >> 2) & 0x3fffffff) << 0)
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#define DISP22(X) ((((X) >> 2) & 0x3fffff) << 0)
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#define SWTRAP(X) (((X) & 0x7f) << 0)
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#define SIMM13_P(X) ((unsigned int) (X) + 0x1000 < 0x2000)
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static void vimm(unsigned int val, int bits, int shift, int sgned, int arg_index)
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{
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unsigned int orig_val = val;
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int orig_bits = bits;
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if (sgned) {
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int x = (int) val;
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if (x < 0)
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x = -x;
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val = (unsigned int) x;
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bits--;
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}
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if (val & ~((1U << bits) - 1U)) {
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Com_Printf("VM ERROR: immediate value 0x%08x out of %d bit range\n",
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orig_val, orig_bits);
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DIE("sparc VM bug");
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}
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}
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static unsigned int sparc_assemble(enum sparc_iname iname, const int argc, const int *argv)
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{
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const struct sparc_opcode *op = &sparc_opcodes[iname];
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unsigned int insn = op->opcode;
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int i, flt, rd_flt;
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flt = (op->name[0] == 'f');
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rd_flt = flt || (op->name[2] == 'f');
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for (i = 0; op->args[i] != ARG_NONE; i++) {
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int val = argv[i];
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switch (op->args[i]) {
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case ARG_RS1: insn |= RS1(val); break;
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case ARG_RS2: insn |= RS2(val); break;
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case ARG_RD: insn |= RD(val); break;
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case ARG_SIMM13: insn |= SIMM13(val); vimm(val,13,0,1,i); break;
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case ARG_DISP30: insn |= DISP30(val); vimm(val,30,0,1,i); break;
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case ARG_IMM22: insn |= IMM22(val); vimm(val,22,0,0,i); break;
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case ARG_DISP22: insn |= DISP22(val); vimm(val,22,0,1,i); break;
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case ARG_SWTRAP: insn |= SWTRAP(val); vimm(val,7,0,0,i); break;
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}
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}
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return insn;
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}
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#define IN(inst, args...) \
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({ const int argv[] = { args }; \
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const int argc = ARRAY_LEN(argv); \
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sparc_assemble(inst, argc, argv); \
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})
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#if 0
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static void pgreg(int reg_num, int arg_index, int flt)
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{
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if (!flt) {
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const char *fmt[] = { "%g", "%o", "%l", "%i" };
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Com_Printf("%s%s%d",
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(arg_index ? ", " : ""),
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fmt[reg_num >> 3], reg_num & 7);
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} else
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Com_Printf("%s%%f%d", (arg_index ? ", " : ""), reg_num);
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}
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static void pimm(unsigned int val, int bits, int shift, int sgned, int arg_index)
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{
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val >>= shift;
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val &= ((1 << bits) - 1);
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if (sgned) {
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int sval = val << (32 - bits);
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sval >>= (32 - bits);
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Com_Printf("%s%d",
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(arg_index ? ", " : ""), sval);
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} else
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Com_Printf("%s0x%08x",
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(arg_index ? ", " : ""), val);
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}
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static void sparc_disassemble(unsigned int insn)
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{
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int op_idx;
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for (op_idx = 0; op_idx < SPARC_NUM_OPCODES; op_idx++) {
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const struct sparc_opcode *op = &sparc_opcodes[op_idx];
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int i, flt, rd_flt;
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if ((insn & op->mask) != op->opcode)
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continue;
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flt = (op->name[0] == 'f');
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rd_flt = flt || (op->name[2] == 'f');
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Com_Printf("ASM: %7s\t", op->name);
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for (i = 0; op->args[i] != ARG_NONE; i++) {
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switch (op->args[i]) {
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case ARG_RS1: pgreg((insn >> 14) & 0x1f, i, flt); break;
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case ARG_RS2: pgreg((insn >> 0) & 0x1f, i, flt); break;
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case ARG_RD: pgreg((insn >> 25) & 0x1f, i, rd_flt); break;
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case ARG_SIMM13: pimm(insn, 13, 0, 1, i); break;
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case ARG_DISP30: pimm(insn, 30, 0, 0, i); break;
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case ARG_IMM22: pimm(insn, 22, 0, 0, i); break;
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case ARG_DISP22: pimm(insn, 22, 0, 0, i); break;
|
|
case ARG_SWTRAP: pimm(insn, 7, 0, 0, i); break;
|
|
}
|
|
}
|
|
Com_Printf("\n");
|
|
return;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* opcode information table:
|
|
* - length of immediate value
|
|
* - returned register type
|
|
* - required register(s) type
|
|
*/
|
|
#define opImm0 0x0000 /* no immediate */
|
|
#define opImm1 0x0001 /* 1 byte immadiate value after opcode */
|
|
#define opImm4 0x0002 /* 4 bytes immediate value after opcode */
|
|
|
|
#define opRet0 0x0000 /* returns nothing */
|
|
#define opRetI 0x0004 /* returns integer */
|
|
#define opRetF 0x0008 /* returns float */
|
|
#define opRetIF (opRetI | opRetF) /* returns integer or float */
|
|
|
|
#define opArg0 0x0000 /* requires nothing */
|
|
#define opArgI 0x0010 /* requires integer(s) */
|
|
#define opArgF 0x0020 /* requires float(s) */
|
|
#define opArgIF (opArgI | opArgF) /* requires integer or float */
|
|
|
|
#define opArg2I 0x0040 /* requires second argument, integer */
|
|
#define opArg2F 0x0080 /* requires second argument, float */
|
|
#define opArg2IF (opArg2I | opArg2F) /* requires second argument, integer or float */
|
|
|
|
static const unsigned char vm_opInfo[256] =
|
|
{
|
|
[OP_UNDEF] = opImm0,
|
|
[OP_IGNORE] = opImm0,
|
|
[OP_BREAK] = opImm0,
|
|
[OP_ENTER] = opImm4,
|
|
/* OP_LEAVE has to accept floats, they will be converted to ints */
|
|
[OP_LEAVE] = opImm4 | opRet0 | opArgIF,
|
|
/* only STORE4 and POP use values from OP_CALL,
|
|
* no need to convert floats back */
|
|
[OP_CALL] = opImm0 | opRetI | opArgI,
|
|
[OP_PUSH] = opImm0 | opRetIF,
|
|
[OP_POP] = opImm0 | opRet0 | opArgIF,
|
|
[OP_CONST] = opImm4 | opRetIF,
|
|
[OP_LOCAL] = opImm4 | opRetI,
|
|
[OP_JUMP] = opImm0 | opRet0 | opArgI,
|
|
|
|
[OP_EQ] = opImm4 | opRet0 | opArgI | opArg2I,
|
|
[OP_NE] = opImm4 | opRet0 | opArgI | opArg2I,
|
|
[OP_LTI] = opImm4 | opRet0 | opArgI | opArg2I,
|
|
[OP_LEI] = opImm4 | opRet0 | opArgI | opArg2I,
|
|
[OP_GTI] = opImm4 | opRet0 | opArgI | opArg2I,
|
|
[OP_GEI] = opImm4 | opRet0 | opArgI | opArg2I,
|
|
[OP_LTU] = opImm4 | opRet0 | opArgI | opArg2I,
|
|
[OP_LEU] = opImm4 | opRet0 | opArgI | opArg2I,
|
|
[OP_GTU] = opImm4 | opRet0 | opArgI | opArg2I,
|
|
[OP_GEU] = opImm4 | opRet0 | opArgI | opArg2I,
|
|
[OP_EQF] = opImm4 | opRet0 | opArgF | opArg2F,
|
|
[OP_NEF] = opImm4 | opRet0 | opArgF | opArg2F,
|
|
[OP_LTF] = opImm4 | opRet0 | opArgF | opArg2F,
|
|
[OP_LEF] = opImm4 | opRet0 | opArgF | opArg2F,
|
|
[OP_GTF] = opImm4 | opRet0 | opArgF | opArg2F,
|
|
[OP_GEF] = opImm4 | opRet0 | opArgF | opArg2F,
|
|
|
|
[OP_LOAD1] = opImm0 | opRetI | opArgI,
|
|
[OP_LOAD2] = opImm0 | opRetI | opArgI,
|
|
[OP_LOAD4] = opImm0 | opRetIF| opArgI,
|
|
[OP_STORE1] = opImm0 | opRet0 | opArgI | opArg2I,
|
|
[OP_STORE2] = opImm0 | opRet0 | opArgI | opArg2I,
|
|
[OP_STORE4] = opImm0 | opRet0 | opArgIF| opArg2I,
|
|
[OP_ARG] = opImm1 | opRet0 | opArgIF,
|
|
[OP_BLOCK_COPY] = opImm4 | opRet0 | opArgI | opArg2I,
|
|
|
|
[OP_SEX8] = opImm0 | opRetI | opArgI,
|
|
[OP_SEX16] = opImm0 | opRetI | opArgI,
|
|
[OP_NEGI] = opImm0 | opRetI | opArgI,
|
|
[OP_ADD] = opImm0 | opRetI | opArgI | opArg2I,
|
|
[OP_SUB] = opImm0 | opRetI | opArgI | opArg2I,
|
|
[OP_DIVI] = opImm0 | opRetI | opArgI | opArg2I,
|
|
[OP_DIVU] = opImm0 | opRetI | opArgI | opArg2I,
|
|
[OP_MODI] = opImm0 | opRetI | opArgI | opArg2I,
|
|
[OP_MODU] = opImm0 | opRetI | opArgI | opArg2I,
|
|
[OP_MULI] = opImm0 | opRetI | opArgI | opArg2I,
|
|
[OP_MULU] = opImm0 | opRetI | opArgI | opArg2I,
|
|
[OP_BAND] = opImm0 | opRetI | opArgI | opArg2I,
|
|
[OP_BOR] = opImm0 | opRetI | opArgI | opArg2I,
|
|
[OP_BXOR] = opImm0 | opRetI | opArgI | opArg2I,
|
|
[OP_BCOM] = opImm0 | opRetI | opArgI,
|
|
[OP_LSH] = opImm0 | opRetI | opArgI | opArg2I,
|
|
[OP_RSHI] = opImm0 | opRetI | opArgI | opArg2I,
|
|
[OP_RSHU] = opImm0 | opRetI | opArgI | opArg2I,
|
|
[OP_NEGF] = opImm0 | opRetF | opArgF,
|
|
[OP_ADDF] = opImm0 | opRetF | opArgF | opArg2F,
|
|
[OP_SUBF] = opImm0 | opRetF | opArgF | opArg2F,
|
|
[OP_DIVF] = opImm0 | opRetF | opArgF | opArg2F,
|
|
[OP_MULF] = opImm0 | opRetF | opArgF | opArg2F,
|
|
[OP_CVIF] = opImm0 | opRetF | opArgI,
|
|
[OP_CVFI] = opImm0 | opRetI | opArgF,
|
|
};
|
|
|
|
static const char *opnames[256] = {
|
|
"OP_UNDEF", "OP_IGNORE", "OP_BREAK", "OP_ENTER", "OP_LEAVE", "OP_CALL",
|
|
"OP_PUSH", "OP_POP", "OP_CONST", "OP_LOCAL", "OP_JUMP",
|
|
"OP_EQ", "OP_NE", "OP_LTI", "OP_LEI", "OP_GTI", "OP_GEI",
|
|
"OP_LTU", "OP_LEU", "OP_GTU", "OP_GEU", "OP_EQF", "OP_NEF",
|
|
"OP_LTF", "OP_LEF", "OP_GTF", "OP_GEF",
|
|
"OP_LOAD1", "OP_LOAD2", "OP_LOAD4", "OP_STORE1", "OP_STORE2",
|
|
"OP_STORE4", "OP_ARG", "OP_BLOCK_COPY",
|
|
"OP_SEX8", "OP_SEX16",
|
|
"OP_NEGI", "OP_ADD", "OP_SUB", "OP_DIVI", "OP_DIVU",
|
|
"OP_MODI", "OP_MODU", "OP_MULI", "OP_MULU", "OP_BAND",
|
|
"OP_BOR", "OP_BXOR", "OP_BCOM", "OP_LSH", "OP_RSHI", "OP_RSHU",
|
|
"OP_NEGF", "OP_ADDF", "OP_SUBF", "OP_DIVF", "OP_MULF",
|
|
"OP_CVIF", "OP_CVFI",
|
|
};
|
|
|
|
static void VM_Destroy_Compiled(vm_t *vm)
|
|
{
|
|
if (vm->codeBase) {
|
|
if (munmap(vm->codeBase, vm->codeLength))
|
|
Com_Printf(S_COLOR_RED "Memory unmap failed, possible memory leak\n");
|
|
}
|
|
vm->codeBase = NULL;
|
|
}
|
|
|
|
typedef struct VM_Data {
|
|
unsigned int dataLength;
|
|
unsigned int codeLength;
|
|
unsigned int *CallThunk;
|
|
int (*AsmCall)(int, int);
|
|
void (*BlockCopy)(unsigned int, unsigned int, unsigned int);
|
|
unsigned int *iPointers;
|
|
void (*ErrJump)(void);
|
|
unsigned int data[0];
|
|
} vm_data_t;
|
|
|
|
#ifdef offsetof
|
|
# define VM_Data_Offset(field) offsetof(vm_data_t, field)
|
|
#else
|
|
# define OFFSET(structName, field) \
|
|
((void *)&(((structName *)NULL)->field) - NULL)
|
|
# define VM_Data_Offset(field) OFFSET(vm_data_t, field)
|
|
#endif
|
|
|
|
struct src_insn {
|
|
unsigned char op;
|
|
unsigned int i_count;
|
|
|
|
union {
|
|
unsigned int i;
|
|
signed int si;
|
|
signed short ss[2];
|
|
unsigned short us[2];
|
|
unsigned char b;
|
|
} arg;
|
|
|
|
unsigned char dst_reg_flags;
|
|
unsigned char src1_reg_flags;
|
|
unsigned char src2_reg_flags;
|
|
#define REG_FLAGS_FLOAT 0x1
|
|
|
|
struct src_insn *next;
|
|
};
|
|
|
|
struct dst_insn;
|
|
struct jump_insn {
|
|
enum sparc_iname jump_iname;
|
|
int jump_dest_insn;
|
|
struct dst_insn *parent;
|
|
struct jump_insn *next;
|
|
};
|
|
|
|
struct dst_insn {
|
|
struct dst_insn *next;
|
|
|
|
unsigned int count;
|
|
unsigned int i_count;
|
|
|
|
struct jump_insn *jump;
|
|
unsigned int length;
|
|
unsigned int code[0];
|
|
};
|
|
|
|
#define HUNK_SIZE 29
|
|
struct data_hunk {
|
|
struct data_hunk *next;
|
|
int count;
|
|
unsigned int data[HUNK_SIZE];
|
|
};
|
|
|
|
struct func_info {
|
|
struct src_insn *first;
|
|
struct src_insn *last;
|
|
int has_call;
|
|
int need_float_tmp;
|
|
|
|
struct src_insn *cached_const;
|
|
|
|
int stack_space;
|
|
int gpr_pos;
|
|
#define rFIRST(fp) ((fp)->gpr_pos - 1)
|
|
#define rSECOND(fp) ((fp)->gpr_pos - 2)
|
|
#define POP_GPR(fp) ((fp)->gpr_pos--)
|
|
#define PUSH_GPR(fp) ((fp)->gpr_pos++)
|
|
|
|
int fpr_pos;
|
|
#define fFIRST(fp) ((fp)->fpr_pos - 1)
|
|
#define fSECOND(fp) ((fp)->fpr_pos - 2)
|
|
#define POP_FPR(fp) ((fp)->fpr_pos--)
|
|
#define PUSH_FPR(fp) ((fp)->fpr_pos++)
|
|
|
|
#define INSN_BUF_SIZE 50
|
|
unsigned int insn_buf[INSN_BUF_SIZE];
|
|
int insn_index;
|
|
|
|
int saved_icount;
|
|
int force_emit;
|
|
|
|
struct jump_insn *jump_first;
|
|
struct jump_insn *jump_last;
|
|
|
|
struct dst_insn *dst_first;
|
|
struct dst_insn *dst_last;
|
|
int dst_count;
|
|
|
|
struct dst_insn **dst_by_i_count;
|
|
|
|
struct data_hunk *data_first;
|
|
int data_num;
|
|
};
|
|
|
|
#define THUNK_ICOUNT -1
|
|
|
|
static unsigned int sparc_push_data(struct func_info * const fp, unsigned int val)
|
|
{
|
|
struct data_hunk *last, *dp = fp->data_first;
|
|
int off = 0;
|
|
|
|
last = NULL;
|
|
while (dp) {
|
|
int i;
|
|
|
|
for (i = 0; i < dp->count; i++) {
|
|
if (dp->data[i] == val) {
|
|
off += i;
|
|
return VM_Data_Offset(data[off]);
|
|
}
|
|
}
|
|
off += dp->count;
|
|
last = dp;
|
|
dp = dp->next;
|
|
}
|
|
|
|
dp = last;
|
|
if (!dp || dp->count >= HUNK_SIZE) {
|
|
struct data_hunk *new = Z_Malloc(sizeof(*new));
|
|
if (!dp)
|
|
fp->data_first = new;
|
|
else
|
|
dp->next = new;
|
|
dp = new;
|
|
dp->count = 0;
|
|
dp->next = NULL;
|
|
}
|
|
dp->data[dp->count++] = val;
|
|
fp->data_num = off + 1;
|
|
return VM_Data_Offset(data[off]);
|
|
}
|
|
|
|
static void dst_insn_insert_tail(struct func_info * const fp,
|
|
struct dst_insn *dp)
|
|
{
|
|
if (!fp->dst_first) {
|
|
fp->dst_first = fp->dst_last = dp;
|
|
} else {
|
|
fp->dst_last->next = dp;
|
|
fp->dst_last = dp;
|
|
}
|
|
}
|
|
|
|
static void jump_insn_insert_tail(struct func_info * const fp,
|
|
struct jump_insn *jp)
|
|
{
|
|
if (!fp->jump_first) {
|
|
fp->jump_first = fp->jump_last = jp;
|
|
} else {
|
|
fp->jump_last->next = jp;
|
|
fp->jump_last = jp;
|
|
}
|
|
}
|
|
|
|
static struct dst_insn *dst_new(struct func_info * const fp, unsigned int length,
|
|
struct jump_insn *jp, int insns_size)
|
|
{
|
|
struct dst_insn *dp = Z_Malloc(sizeof(struct dst_insn) + insns_size);
|
|
|
|
dp->length = length;
|
|
dp->jump = jp;
|
|
dp->count = fp->dst_count++;
|
|
dp->i_count = fp->saved_icount;
|
|
dp->next = NULL;
|
|
if (fp->saved_icount != THUNK_ICOUNT)
|
|
fp->dst_by_i_count[fp->saved_icount] = dp;
|
|
|
|
return dp;
|
|
}
|
|
|
|
static void dst_insn_append(struct func_info * const fp)
|
|
{
|
|
int insns_size = (sizeof(unsigned int) * fp->insn_index);
|
|
struct dst_insn *dp;
|
|
|
|
dp = dst_new(fp, fp->insn_index, NULL, insns_size);
|
|
if (insns_size)
|
|
memcpy(&dp->code[0], fp->insn_buf, insns_size);
|
|
dst_insn_insert_tail(fp, dp);
|
|
|
|
fp->insn_index = 0;
|
|
}
|
|
|
|
static void ErrJump(void)
|
|
{
|
|
Com_Error(ERR_DROP, "program tried to execute code outside VM");
|
|
exit(1);
|
|
}
|
|
|
|
static void jump_insn_append(vm_t *vm, struct func_info * const fp, enum sparc_iname iname, int dest)
|
|
{
|
|
struct jump_insn *jp = Z_Malloc(sizeof(*jp));
|
|
struct dst_insn *dp;
|
|
|
|
if (dest < 0 || dest >= vm->instructionCount)
|
|
ErrJump();
|
|
|
|
dp = dst_new(fp, 2, jp, 0);
|
|
|
|
jp->jump_iname = iname;
|
|
jp->jump_dest_insn = dest;
|
|
jp->parent = dp;
|
|
jp->next = NULL;
|
|
|
|
jump_insn_insert_tail(fp, jp);
|
|
dst_insn_insert_tail(fp, dp);
|
|
}
|
|
|
|
static void start_emit(struct func_info * const fp, int i_count)
|
|
{
|
|
fp->saved_icount = i_count;
|
|
fp->insn_index = 0;
|
|
fp->force_emit = 0;
|
|
}
|
|
|
|
static void __do_emit_one(struct func_info * const fp, unsigned int insn)
|
|
{
|
|
fp->insn_buf[fp->insn_index++] = insn;
|
|
}
|
|
|
|
#define in(inst, args...) __do_emit_one(fp, IN(inst, args))
|
|
|
|
static void end_emit(struct func_info * const fp)
|
|
{
|
|
if (fp->insn_index || fp->force_emit)
|
|
dst_insn_append(fp);
|
|
}
|
|
|
|
static void emit_jump(vm_t *vm, struct func_info * const fp, enum sparc_iname iname, int dest)
|
|
{
|
|
end_emit(fp);
|
|
jump_insn_append(vm, fp, iname, dest);
|
|
}
|
|
|
|
static void analyze_function(struct func_info * const fp)
|
|
{
|
|
struct src_insn *value_provider[20] = { NULL };
|
|
struct src_insn *sp = fp->first;
|
|
int opstack_depth = 0;
|
|
|
|
while ((sp = sp->next) != NULL) {
|
|
unsigned char opi, op = sp->op;
|
|
|
|
opi = vm_opInfo[op];
|
|
if (opi & opArgIF) {
|
|
struct src_insn *vp = value_provider[--opstack_depth];
|
|
unsigned char vpopi = vm_opInfo[vp->op];
|
|
|
|
if ((opi & opArgI) && (vpopi & opRetI)) {
|
|
/* src1 and dst are integers */
|
|
} else if ((opi & opArgF) && (vpopi & opRetF)) {
|
|
/* src1 and dst are floats */
|
|
vp->dst_reg_flags |= REG_FLAGS_FLOAT;
|
|
sp->src1_reg_flags = REG_FLAGS_FLOAT;
|
|
} else {
|
|
/* illegal combination */
|
|
DIE("unrecognized instruction combination");
|
|
}
|
|
}
|
|
if (opi & opArg2IF) {
|
|
struct src_insn *vp = value_provider[--opstack_depth];
|
|
unsigned char vpopi = vm_opInfo[vp->op];
|
|
|
|
if ((opi & opArg2I) && (vpopi & opRetI)) {
|
|
/* src2 and dst are integers */
|
|
} else if ( (opi & opArg2F) && (vpopi & opRetF) ) {
|
|
/* src2 and dst are floats */
|
|
vp->dst_reg_flags |= REG_FLAGS_FLOAT;
|
|
sp->src2_reg_flags = REG_FLAGS_FLOAT;
|
|
} else {
|
|
/* illegal combination */
|
|
DIE("unrecognized instruction combination");
|
|
}
|
|
}
|
|
if (opi & opRetIF) {
|
|
value_provider[opstack_depth] = sp;
|
|
opstack_depth++;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int asmcall(int call, int pstack)
|
|
{
|
|
vm_t *savedVM = currentVM;
|
|
int i, ret;
|
|
|
|
currentVM->programStack = pstack - 4;
|
|
if (sizeof(intptr_t) == sizeof(int)) {
|
|
intptr_t *argPosition = (intptr_t *)((byte *)currentVM->dataBase + pstack + 4);
|
|
argPosition[0] = -1 - call;
|
|
ret = currentVM->systemCall(argPosition);
|
|
} else {
|
|
intptr_t args[MAX_VMSYSCALL_ARGS];
|
|
|
|
args[0] = -1 - call;
|
|
int *argPosition = (int *)((byte *)currentVM->dataBase + pstack + 4);
|
|
for( i = 1; i < ARRAY_LEN(args); i++ )
|
|
args[i] = argPosition[i];
|
|
|
|
ret = currentVM->systemCall(args);
|
|
}
|
|
|
|
currentVM = savedVM;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void blockcopy(unsigned int dest, unsigned int src, unsigned int count)
|
|
{
|
|
unsigned int dataMask = currentVM->dataMask;
|
|
|
|
if ((dest & dataMask) != dest ||
|
|
(src & dataMask) != src ||
|
|
((dest+count) & dataMask) != dest + count ||
|
|
((src+count) & dataMask) != src + count) {
|
|
DIE("OP_BLOCK_COPY out of range!");
|
|
}
|
|
|
|
memcpy(currentVM->dataBase+dest, currentVM->dataBase+src, count);
|
|
}
|
|
|
|
static void do_emit_const(struct func_info * const fp, struct src_insn *sp)
|
|
{
|
|
start_emit(fp, sp->i_count);
|
|
if (sp->dst_reg_flags & REG_FLAGS_FLOAT) {
|
|
in(LDFI, rVMDATA, sparc_push_data(fp, sp->arg.i), fFIRST(fp));
|
|
} else {
|
|
if ((sp->arg.i & ~0x3ff) == 0) {
|
|
in(ORI, G0, sp->arg.i & 0x3ff, rFIRST(fp));
|
|
} else if ((sp->arg.i & 0x3ff) == 0) {
|
|
in(SETHI, sp->arg.i >> 10, rFIRST(fp));
|
|
} else {
|
|
in(SETHI, sp->arg.i >> 10, rFIRST(fp));
|
|
in(ORI, rFIRST(fp), sp->arg.i & 0x3ff, rFIRST(fp));
|
|
}
|
|
}
|
|
end_emit(fp);
|
|
}
|
|
|
|
#define MAYBE_EMIT_CONST(fp) \
|
|
do { if ((fp)->cached_const) { \
|
|
int saved_i_count = (fp)->saved_icount; \
|
|
do_emit_const(fp, (fp)->cached_const); \
|
|
(fp)->saved_icount = saved_i_count; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define EMIT_FALSE_CONST(fp) \
|
|
do { int saved_i_count = (fp)->saved_icount; \
|
|
(fp)->saved_icount = (fp)->cached_const->i_count; \
|
|
dst_insn_append(fp); \
|
|
(fp)->saved_icount = saved_i_count; \
|
|
} while (0)
|
|
|
|
static void compile_one_insn(vm_t *vm, struct func_info * const fp, struct src_insn *sp)
|
|
{
|
|
start_emit(fp, sp->i_count);
|
|
|
|
switch (sp->op) {
|
|
default:
|
|
Com_Printf("VM: Unhandled opcode 0x%02x[%s]\n",
|
|
sp->op,
|
|
opnames[sp->op] ? opnames[sp->op] : "UNKNOWN");
|
|
DIE("Unsupported opcode");
|
|
break;
|
|
|
|
case OP_ENTER: {
|
|
int stack = SL(64, 128);
|
|
|
|
if (fp->need_float_tmp)
|
|
stack += 16;
|
|
|
|
in(SAVEI, O6, -stack, O6);
|
|
if (!SIMM13_P(sp->arg.si)) {
|
|
in(SETHI, sp->arg.i >> 10, rTMP);
|
|
in(ORI, rTMP, sp->arg.i & 0x3ff, rTMP);
|
|
in(SUB, rPSTACK, rTMP, rPSTACK);
|
|
} else
|
|
in(SUBI, rPSTACK, sp->arg.si, rPSTACK);
|
|
break;
|
|
}
|
|
case OP_LEAVE:
|
|
if (fp->cached_const && SIMM13_P(fp->cached_const->arg.si)) {
|
|
EMIT_FALSE_CONST(fp);
|
|
if (fp->cached_const->src1_reg_flags & REG_FLAGS_FLOAT)
|
|
DIE("constant float in OP_LEAVE");
|
|
|
|
if (!SIMM13_P(sp->arg.si)) {
|
|
in(SETHI, sp->arg.i >> 10, rTMP);
|
|
in(ORI, rTMP, sp->arg.i & 0x3ff, rTMP);
|
|
in(ADD, rPSTACK, rTMP, rPSTACK);
|
|
} else
|
|
in(ADDI, rPSTACK, sp->arg.si, rPSTACK);
|
|
in(JMPLI, I7, 8, G0);
|
|
in(RESTOREI, G0, fp->cached_const->arg.si, O0);
|
|
POP_GPR(fp);
|
|
} else {
|
|
MAYBE_EMIT_CONST(fp);
|
|
if (!SIMM13_P(sp->arg.si)) {
|
|
in(SETHI, sp->arg.i >> 10, rTMP);
|
|
in(ORI, rTMP, sp->arg.i & 0x3ff, rTMP);
|
|
in(ADD, rPSTACK, rTMP, rPSTACK);
|
|
} else
|
|
in(ADDI, rPSTACK, sp->arg.si, rPSTACK);
|
|
if (sp->src1_reg_flags & REG_FLAGS_FLOAT) {
|
|
in(STFI, O6, SL(64, 128), fFIRST(fp));
|
|
in(LDUWI, O6, SL(64, 128), O0);
|
|
in(JMPLI, I7, 8, G0);
|
|
in(RESTORE, O0, G0, O0);
|
|
POP_FPR(fp);
|
|
} else {
|
|
in(JMPLI, I7, 8, G0);
|
|
in(RESTORE, rFIRST(fp), G0, O0);
|
|
POP_GPR(fp);
|
|
}
|
|
}
|
|
assert(fp->gpr_pos == L0);
|
|
assert(fp->fpr_pos == F0);
|
|
break;
|
|
case OP_JUMP:
|
|
if (fp->cached_const) {
|
|
EMIT_FALSE_CONST(fp);
|
|
emit_jump(vm, fp, BA, fp->cached_const->arg.i);
|
|
} else {
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(SETHI, vm->instructionCount >> 10, rTMP);
|
|
in(ORI, rTMP, vm->instructionCount & 0x3ff, rTMP);
|
|
in(SUBCC, rTMP, rFIRST(fp), G0);
|
|
in(BLEU, +4*5);
|
|
in(LDLI, rVMDATA, VM_Data_Offset(ErrJump), rTMP);
|
|
|
|
in(SLLI, rFIRST(fp), 2, rFIRST(fp));
|
|
in(LDLI, rVMDATA, VM_Data_Offset(iPointers), rTMP);
|
|
in(LDL, rTMP, rFIRST(fp), rTMP);
|
|
in(JMPL, rTMP, G0, G0);
|
|
in(NOP);
|
|
}
|
|
POP_GPR(fp);
|
|
break;
|
|
case OP_CALL:
|
|
if (fp->cached_const) {
|
|
EMIT_FALSE_CONST(fp);
|
|
if (fp->cached_const->arg.si >= 0) {
|
|
emit_jump(vm, fp, CALL, fp->cached_const->arg.i);
|
|
} else {
|
|
in(LDLI, rVMDATA, VM_Data_Offset(CallThunk), rTMP);
|
|
in(LDLI, rVMDATA, VM_Data_Offset(AsmCall), O3);
|
|
in(ORI, G0, fp->cached_const->arg.si, O0);
|
|
in(JMPL, rTMP, G0, O7);
|
|
in(OR, G0, rPSTACK, O1);
|
|
}
|
|
in(OR, G0, O0, rFIRST(fp));
|
|
} else {
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(SUBCCI, rFIRST(fp), 0, G0);
|
|
in(BL, +4*7);
|
|
in(NOP);
|
|
|
|
/* normal call */
|
|
in(SETHI, vm->instructionCount >> 10, rTMP);
|
|
in(ORI, rTMP, vm->instructionCount & 0x3ff, rTMP);
|
|
in(SUBCC, rTMP, rFIRST(fp), G0);
|
|
in(BLEU, +4*9);
|
|
in(LDLI, rVMDATA, VM_Data_Offset(ErrJump), rTMP);
|
|
in(LDLI, rVMDATA, VM_Data_Offset(iPointers), O5);
|
|
in(SLLI, rFIRST(fp), 2, rFIRST(fp));
|
|
in(LDL, O5, rFIRST(fp), rTMP);
|
|
in(BA, +4*4);
|
|
in(NOP);
|
|
|
|
/* syscall */
|
|
in(LDLI, rVMDATA, VM_Data_Offset(CallThunk), rTMP);
|
|
in(LDLI, rVMDATA, VM_Data_Offset(AsmCall), O3);
|
|
|
|
in(OR, G0, rFIRST(fp), O0);
|
|
in(JMPL, rTMP, G0, O7);
|
|
in(OR, G0, rPSTACK, O1);
|
|
|
|
/* return value */
|
|
in(OR, G0, O0, rFIRST(fp));
|
|
}
|
|
break;
|
|
case OP_BLOCK_COPY:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(LDLI, rVMDATA, VM_Data_Offset(CallThunk), rTMP);
|
|
in(LDLI, rVMDATA, VM_Data_Offset(BlockCopy), O3);
|
|
in(OR, G0, rSECOND(fp), O0);
|
|
in(OR, G0, rFIRST(fp), O1);
|
|
if ((sp->arg.i & ~0x3ff) == 0) {
|
|
in(ORI, G0, sp->arg.i & 0x3ff, O2);
|
|
} else if ((sp->arg.i & 0x3ff) == 0) {
|
|
in(SETHI, sp->arg.i >> 10, O2);
|
|
} else {
|
|
in(SETHI, sp->arg.i >> 10, O2);
|
|
in(ORI, O2, sp->arg.i & 0x3ff, O2);
|
|
}
|
|
in(JMPL, rTMP, G0, O7);
|
|
in(NOP);
|
|
POP_GPR(fp);
|
|
POP_GPR(fp);
|
|
break;
|
|
|
|
case OP_PUSH:
|
|
MAYBE_EMIT_CONST(fp);
|
|
if (sp->dst_reg_flags & REG_FLAGS_FLOAT)
|
|
PUSH_FPR(fp);
|
|
else
|
|
PUSH_GPR(fp);
|
|
fp->force_emit = 1;
|
|
break;
|
|
case OP_POP:
|
|
MAYBE_EMIT_CONST(fp);
|
|
if (sp->src1_reg_flags & REG_FLAGS_FLOAT)
|
|
POP_FPR(fp);
|
|
else
|
|
POP_GPR(fp);
|
|
fp->force_emit = 1;
|
|
break;
|
|
case OP_ARG:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(ADDI, rPSTACK, sp->arg.b, rTMP);
|
|
if (sp->src1_reg_flags & REG_FLAGS_FLOAT) {
|
|
in(STF, rDATABASE, rTMP, fFIRST(fp));
|
|
POP_FPR(fp);
|
|
} else {
|
|
in(STW, rDATABASE, rTMP, rFIRST(fp));
|
|
POP_GPR(fp);
|
|
}
|
|
break;
|
|
case OP_IGNORE:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(NOP);
|
|
break;
|
|
case OP_BREAK:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(TA, 0x5);
|
|
break;
|
|
case OP_LOCAL:
|
|
MAYBE_EMIT_CONST(fp);
|
|
PUSH_GPR(fp);
|
|
if (!SIMM13_P(sp->arg.i)) {
|
|
in(SETHI, sp->arg.i >> 10, rTMP);
|
|
in(ORI, rTMP, sp->arg.i & 0x3ff, rTMP);
|
|
in(ADD, rPSTACK, rTMP, rFIRST(fp));
|
|
} else
|
|
in(ADDI, rPSTACK, sp->arg.i, rFIRST(fp));
|
|
break;
|
|
case OP_CONST:
|
|
MAYBE_EMIT_CONST(fp);
|
|
break;
|
|
case OP_LOAD4:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(AND, rFIRST(fp), rDATAMASK, rFIRST(fp));
|
|
if (sp->dst_reg_flags & REG_FLAGS_FLOAT) {
|
|
PUSH_FPR(fp);
|
|
in(LDF, rFIRST(fp), rDATABASE, fFIRST(fp));
|
|
POP_GPR(fp);
|
|
} else {
|
|
in(LDUW, rFIRST(fp), rDATABASE, rFIRST(fp));
|
|
}
|
|
break;
|
|
case OP_LOAD2:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(AND, rFIRST(fp), rDATAMASK, rFIRST(fp));
|
|
in(LDUH, rFIRST(fp), rDATABASE, rFIRST(fp));
|
|
break;
|
|
case OP_LOAD1:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(AND, rFIRST(fp), rDATAMASK, rFIRST(fp));
|
|
in(LDUB, rFIRST(fp), rDATABASE, rFIRST(fp));
|
|
break;
|
|
case OP_STORE4:
|
|
MAYBE_EMIT_CONST(fp);
|
|
if (sp->src1_reg_flags & REG_FLAGS_FLOAT) {
|
|
in(AND, rFIRST(fp), rDATAMASK, rFIRST(fp));
|
|
in(STF, rFIRST(fp), rDATABASE, fFIRST(fp));
|
|
POP_FPR(fp);
|
|
} else {
|
|
in(AND, rSECOND(fp), rDATAMASK, rSECOND(fp));
|
|
in(STW, rSECOND(fp), rDATABASE, rFIRST(fp));
|
|
POP_GPR(fp);
|
|
}
|
|
POP_GPR(fp);
|
|
break;
|
|
case OP_STORE2:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(AND, rSECOND(fp), rDATAMASK, rSECOND(fp));
|
|
in(STH, rSECOND(fp), rDATABASE, rFIRST(fp));
|
|
POP_GPR(fp);
|
|
POP_GPR(fp);
|
|
break;
|
|
case OP_STORE1:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(AND, rSECOND(fp), rDATAMASK, rSECOND(fp));
|
|
in(STB, rSECOND(fp), rDATABASE, rFIRST(fp));
|
|
POP_GPR(fp);
|
|
POP_GPR(fp);
|
|
break;
|
|
case OP_EQ:
|
|
case OP_NE:
|
|
case OP_LTI:
|
|
case OP_GEI:
|
|
case OP_GTI:
|
|
case OP_LEI:
|
|
case OP_LTU:
|
|
case OP_GEU:
|
|
case OP_GTU:
|
|
case OP_LEU: {
|
|
enum sparc_iname iname = BA;
|
|
|
|
if (fp->cached_const && SIMM13_P(fp->cached_const->arg.si)) {
|
|
EMIT_FALSE_CONST(fp);
|
|
in(SUBCCI, rSECOND(fp), fp->cached_const->arg.si, G0);
|
|
} else {
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(SUBCC, rSECOND(fp), rFIRST(fp), G0);
|
|
}
|
|
switch(sp->op) {
|
|
case OP_EQ: iname = BE; break;
|
|
case OP_NE: iname = BNE; break;
|
|
case OP_LTI: iname = BL; break;
|
|
case OP_GEI: iname = BGE; break;
|
|
case OP_GTI: iname = BG; break;
|
|
case OP_LEI: iname = BLE; break;
|
|
case OP_LTU: iname = BCS; break;
|
|
case OP_GEU: iname = BCC; break;
|
|
case OP_GTU: iname = BGU; break;
|
|
case OP_LEU: iname = BLEU; break;
|
|
}
|
|
emit_jump(vm, fp, iname, sp->arg.i);
|
|
POP_GPR(fp);
|
|
POP_GPR(fp);
|
|
break;
|
|
}
|
|
|
|
case OP_SEX8:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(SLLI, rFIRST(fp), 24, rFIRST(fp));
|
|
in(SRAI, rFIRST(fp), 24, rFIRST(fp));
|
|
break;
|
|
case OP_SEX16:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(SLLI, rFIRST(fp), 16, rFIRST(fp));
|
|
in(SRAI, rFIRST(fp), 16, rFIRST(fp));
|
|
break;
|
|
case OP_NEGI:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(SUB, G0, rFIRST(fp), rFIRST(fp));
|
|
break;
|
|
case OP_ADD:
|
|
if (fp->cached_const && SIMM13_P(fp->cached_const->arg.si)) {
|
|
EMIT_FALSE_CONST(fp);
|
|
in(ADDI, rSECOND(fp), fp->cached_const->arg.si, rSECOND(fp));
|
|
} else {
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(ADD, rSECOND(fp), rFIRST(fp), rSECOND(fp));
|
|
}
|
|
POP_GPR(fp);
|
|
break;
|
|
case OP_SUB:
|
|
if (fp->cached_const && SIMM13_P(fp->cached_const->arg.si)) {
|
|
EMIT_FALSE_CONST(fp);
|
|
in(SUBI, rSECOND(fp), fp->cached_const->arg.si, rSECOND(fp));
|
|
} else {
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(SUB, rSECOND(fp), rFIRST(fp), rSECOND(fp));
|
|
}
|
|
POP_GPR(fp);
|
|
break;
|
|
case OP_DIVI:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(SRAI, rSECOND(fp), 31, rTMP);
|
|
in(WRI, rTMP, 0, Y_REG);
|
|
in(SDIV, rSECOND(fp), rFIRST(fp), rSECOND(fp));
|
|
POP_GPR(fp);
|
|
break;
|
|
case OP_DIVU:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(WRI, G0, 0, Y_REG);
|
|
in(UDIV, rSECOND(fp), rFIRST(fp), rSECOND(fp));
|
|
POP_GPR(fp);
|
|
break;
|
|
case OP_MODI:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(SRAI, rSECOND(fp), 31, rTMP);
|
|
in(WRI, rTMP, 0, Y_REG);
|
|
in(SDIV, rSECOND(fp), rFIRST(fp), rTMP);
|
|
in(SMUL, rTMP, rFIRST(fp), rTMP);
|
|
in(SUB, rSECOND(fp), rTMP, rSECOND(fp));
|
|
POP_GPR(fp);
|
|
break;
|
|
case OP_MODU:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(WRI, G0, 0, Y_REG);
|
|
in(UDIV, rSECOND(fp), rFIRST(fp), rTMP);
|
|
in(SMUL, rTMP, rFIRST(fp), rTMP);
|
|
in(SUB, rSECOND(fp), rTMP, rSECOND(fp));
|
|
POP_GPR(fp);
|
|
break;
|
|
case OP_MULI:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(SMUL, rSECOND(fp), rFIRST(fp), rSECOND(fp));
|
|
POP_GPR(fp);
|
|
break;
|
|
case OP_MULU:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(UMUL, rSECOND(fp), rFIRST(fp), rSECOND(fp));
|
|
POP_GPR(fp);
|
|
break;
|
|
case OP_BAND:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(AND, rSECOND(fp), rFIRST(fp), rSECOND(fp));
|
|
POP_GPR(fp);
|
|
break;
|
|
case OP_BOR:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(OR, rSECOND(fp), rFIRST(fp), rSECOND(fp));
|
|
POP_GPR(fp);
|
|
break;
|
|
case OP_BXOR:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(XOR, rSECOND(fp), rFIRST(fp), rSECOND(fp));
|
|
POP_GPR(fp);
|
|
break;
|
|
case OP_BCOM:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(XNOR, rFIRST(fp), G0, rFIRST(fp));
|
|
break;
|
|
case OP_LSH:
|
|
if (fp->cached_const) {
|
|
EMIT_FALSE_CONST(fp);
|
|
in(SLLI, rSECOND(fp), fp->cached_const->arg.si, rSECOND(fp));
|
|
} else {
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(SLL, rSECOND(fp), rFIRST(fp), rSECOND(fp));
|
|
}
|
|
POP_GPR(fp);
|
|
break;
|
|
case OP_RSHI:
|
|
if (fp->cached_const) {
|
|
EMIT_FALSE_CONST(fp);
|
|
in(SRAI, rSECOND(fp), fp->cached_const->arg.si, rSECOND(fp));
|
|
} else {
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(SRA, rSECOND(fp), rFIRST(fp), rSECOND(fp));
|
|
}
|
|
POP_GPR(fp);
|
|
break;
|
|
case OP_RSHU:
|
|
if (fp->cached_const) {
|
|
EMIT_FALSE_CONST(fp);
|
|
in(SRLI, rSECOND(fp), fp->cached_const->arg.si, rSECOND(fp));
|
|
} else {
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(SRL, rSECOND(fp), rFIRST(fp), rSECOND(fp));
|
|
}
|
|
POP_GPR(fp);
|
|
break;
|
|
|
|
case OP_NEGF:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(FNEG, fFIRST(fp), fFIRST(fp));
|
|
break;
|
|
case OP_ADDF:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(FADD, fSECOND(fp), fFIRST(fp), fSECOND(fp));
|
|
POP_FPR(fp);
|
|
break;
|
|
case OP_SUBF:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(FSUB, fSECOND(fp), fFIRST(fp), fSECOND(fp));
|
|
POP_FPR(fp);
|
|
break;
|
|
case OP_DIVF:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(FDIV, fSECOND(fp), fFIRST(fp), fSECOND(fp));
|
|
POP_FPR(fp);
|
|
break;
|
|
case OP_MULF:
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(FMUL, fSECOND(fp), fFIRST(fp), fSECOND(fp));
|
|
POP_FPR(fp);
|
|
break;
|
|
|
|
case OP_EQF:
|
|
case OP_NEF:
|
|
case OP_LTF:
|
|
case OP_GEF:
|
|
case OP_GTF:
|
|
case OP_LEF: {
|
|
enum sparc_iname iname = FBE;
|
|
|
|
MAYBE_EMIT_CONST(fp);
|
|
in(FCMP, fSECOND(fp), fFIRST(fp));
|
|
switch(sp->op) {
|
|
case OP_EQF: iname = FBE; break;
|
|
case OP_NEF: iname = FBNE; break;
|
|
case OP_LTF: iname = FBL; break;
|
|
case OP_GEF: iname = FBGE; break;
|
|
case OP_GTF: iname = FBG; break;
|
|
case OP_LEF: iname = FBLE; break;
|
|
}
|
|
emit_jump(vm, fp, iname, sp->arg.i);
|
|
POP_FPR(fp);
|
|
POP_FPR(fp);
|
|
break;
|
|
}
|
|
case OP_CVIF:
|
|
MAYBE_EMIT_CONST(fp);
|
|
PUSH_FPR(fp);
|
|
in(STWI, O6, SL(64, 128), rFIRST(fp));
|
|
in(LDFI, O6, SL(64, 128), fFIRST(fp));
|
|
in(FITOS, fFIRST(fp), fFIRST(fp));
|
|
POP_GPR(fp);
|
|
break;
|
|
case OP_CVFI:
|
|
MAYBE_EMIT_CONST(fp);
|
|
PUSH_GPR(fp);
|
|
in(FSTOI, fFIRST(fp), fFIRST(fp));
|
|
in(STFI, O6, SL(64, 128), fFIRST(fp));
|
|
in(LDUWI, O6, SL(64, 128), rFIRST(fp));
|
|
POP_FPR(fp);
|
|
break;
|
|
}
|
|
if (sp->op != OP_CONST) {
|
|
fp->cached_const = NULL;
|
|
end_emit(fp);
|
|
} else {
|
|
fp->cached_const = sp;
|
|
if (sp->dst_reg_flags & REG_FLAGS_FLOAT) {
|
|
PUSH_FPR(fp);
|
|
} else {
|
|
PUSH_GPR(fp);
|
|
}
|
|
}
|
|
end_emit(fp);
|
|
}
|
|
|
|
static void free_source_insns(struct func_info * const fp)
|
|
{
|
|
struct src_insn *sp = fp->first->next;
|
|
|
|
while (sp) {
|
|
struct src_insn *next = sp->next;
|
|
Z_Free(sp);
|
|
sp = next;
|
|
}
|
|
}
|
|
|
|
static void compile_function(vm_t *vm, struct func_info * const fp)
|
|
{
|
|
struct src_insn *sp;
|
|
|
|
analyze_function(fp);
|
|
|
|
fp->gpr_pos = L0;
|
|
fp->fpr_pos = F0;
|
|
fp->insn_index = 0;
|
|
|
|
fp->stack_space = SL(64, 128);
|
|
fp->cached_const = NULL;
|
|
|
|
sp = fp->first;
|
|
while ((sp = sp->next) != NULL)
|
|
compile_one_insn(vm, fp, sp);
|
|
|
|
free_source_insns(fp);
|
|
}
|
|
|
|
/* We have two thunks for sparc. The first is for the entry into
|
|
* the VM, where setup the fixed global registers. The second is
|
|
* for calling out to C code from the VM, where we need to preserve
|
|
* those fixed globals across the call.
|
|
*/
|
|
static void emit_vm_thunk(struct func_info * const fp)
|
|
{
|
|
/* int vm_thunk(void *vmdata, int programstack, void *database, int datamask) */
|
|
start_emit(fp, THUNK_ICOUNT);
|
|
|
|
in(OR, G0, O0, rVMDATA);
|
|
in(OR, G0, O1, rPSTACK);
|
|
in(OR, G0, O2, rDATABASE);
|
|
in(BA, +4*17);
|
|
in(OR, G0, O3, rDATAMASK);
|
|
|
|
/* int call_thunk(int arg0, int arg1, int arg2, int (*func)(int int int)) */
|
|
#define CALL_THUNK_INSN_OFFSET 5
|
|
in(SAVEI, O6, -SL(64, 128), O6);
|
|
|
|
in(OR, G0, rVMDATA, L0);
|
|
in(OR, G0, rPSTACK, L1);
|
|
in(OR, G0, rDATABASE, L2);
|
|
in(OR, G0, rDATAMASK, L3);
|
|
|
|
in(OR, G0, I0, O0);
|
|
in(OR, G0, I1, O1);
|
|
in(JMPL, I3, G0, O7);
|
|
in(OR, G0, I2, O2);
|
|
|
|
in(OR, G0, L0, rVMDATA);
|
|
in(OR, G0, L1, rPSTACK);
|
|
in(OR, G0, L2, rDATABASE);
|
|
in(OR, G0, L3, rDATAMASK);
|
|
|
|
in(JMPLI, I7, 8, G0);
|
|
in(RESTORE, O0, G0, O0);
|
|
|
|
end_emit(fp);
|
|
}
|
|
|
|
static void sparc_compute_code(vm_t *vm, struct func_info * const fp)
|
|
{
|
|
struct dst_insn *dp = fp->dst_first;
|
|
unsigned int *code_now, *code_begin;
|
|
unsigned char *data_and_code;
|
|
unsigned int code_length;
|
|
int code_insns = 0, off;
|
|
struct data_hunk *dhp;
|
|
struct jump_insn *jp;
|
|
vm_data_t *data;
|
|
|
|
while (dp) {
|
|
code_insns += dp->length;
|
|
dp = dp->next;
|
|
}
|
|
|
|
code_length = (sizeof(vm_data_t) +
|
|
(fp->data_num * sizeof(unsigned int)) +
|
|
(code_insns * sizeof(unsigned int)));
|
|
|
|
data_and_code = mmap(NULL, code_length, PROT_READ | PROT_WRITE,
|
|
MAP_SHARED | MAP_ANONYMOUS, -1, 0);
|
|
if (data_and_code == MAP_FAILED)
|
|
DIE("Not enough memory");
|
|
|
|
code_now = code_begin = (unsigned int *)
|
|
(data_and_code + VM_Data_Offset(data[fp->data_num]));
|
|
|
|
dp = fp->dst_first;
|
|
while (dp) {
|
|
int i_count = dp->i_count;
|
|
|
|
if (i_count != THUNK_ICOUNT) {
|
|
if (!fp->dst_by_i_count[i_count])
|
|
fp->dst_by_i_count[i_count] = (void *) code_now;
|
|
}
|
|
if (!dp->jump) {
|
|
memcpy(code_now, &dp->code[0], dp->length * sizeof(unsigned int));
|
|
code_now += dp->length;
|
|
} else {
|
|
int i;
|
|
|
|
dp->jump->parent = (void *) code_now;
|
|
|
|
for (i = 0; i < dp->length; i++)
|
|
code_now[i] = SPARC_NOP;
|
|
code_now += dp->length;
|
|
}
|
|
|
|
dp = dp->next;
|
|
}
|
|
|
|
jp = fp->jump_first;
|
|
while (jp) {
|
|
unsigned int *from = (void *) jp->parent;
|
|
unsigned int *to = (void *) fp->dst_by_i_count[jp->jump_dest_insn];
|
|
signed int disp = (to - from);
|
|
|
|
*from = IN(jp->jump_iname, disp << 2);
|
|
|
|
jp = jp->next;
|
|
}
|
|
|
|
vm->codeBase = data_and_code;
|
|
vm->codeLength = code_length;
|
|
|
|
data = (vm_data_t *) data_and_code;
|
|
data->CallThunk = code_begin + CALL_THUNK_INSN_OFFSET;
|
|
data->AsmCall = asmcall;
|
|
data->BlockCopy = blockcopy;
|
|
data->iPointers = (unsigned int *) vm->instructionPointers;
|
|
data->dataLength = VM_Data_Offset(data[fp->data_num]);
|
|
data->codeLength = (code_now - code_begin) * sizeof(unsigned int);
|
|
data->ErrJump = ErrJump;
|
|
|
|
#if 0
|
|
{
|
|
unsigned int *insn = code_begin;
|
|
int i;
|
|
|
|
Com_Printf("INSN DUMP\n");
|
|
for (i = 0; i < data->codeLength / 4; i+= 8) {
|
|
Com_Printf("\t.word\t0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x\n",
|
|
insn[i + 0], insn[i + 1],
|
|
insn[i + 2], insn[i + 3],
|
|
insn[i + 4], insn[i + 5],
|
|
insn[i + 6], insn[i + 7]);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
dhp = fp->data_first;
|
|
off = 0;
|
|
while (dhp) {
|
|
struct data_hunk *next = dhp->next;
|
|
int i;
|
|
|
|
for (i = 0; i < dhp->count; i++)
|
|
data->data[off + i] = dhp->data[i];
|
|
|
|
off += dhp->count;
|
|
|
|
Z_Free(dhp);
|
|
|
|
dhp = next;
|
|
}
|
|
fp->data_first = NULL;
|
|
fp->data_num = 0;
|
|
|
|
dp = fp->dst_first;
|
|
while (dp) {
|
|
struct dst_insn *next = dp->next;
|
|
if (dp->jump)
|
|
Z_Free(dp->jump);
|
|
Z_Free(dp);
|
|
dp = next;
|
|
}
|
|
fp->dst_first = fp->dst_last = NULL;
|
|
}
|
|
|
|
void VM_Compile(vm_t *vm, vmHeader_t *header)
|
|
{
|
|
struct func_info fi;
|
|
unsigned char *code;
|
|
int i_count, pc, i;
|
|
|
|
memset(&fi, 0, sizeof(fi));
|
|
|
|
fi.first = Z_Malloc(sizeof(struct src_insn));
|
|
fi.first->next = NULL;
|
|
|
|
#ifdef __arch64__
|
|
Z_Free(vm->instructionPointers);
|
|
vm->instructionPointers = Z_Malloc(header->instructionCount *
|
|
sizeof(void *));
|
|
#endif
|
|
|
|
fi.dst_by_i_count = (struct dst_insn **) vm->instructionPointers;
|
|
memset(fi.dst_by_i_count, 0, header->instructionCount * sizeof(void *));
|
|
|
|
vm->compiled = qfalse;
|
|
|
|
emit_vm_thunk(&fi);
|
|
|
|
code = (unsigned char *) header + header->codeOffset;
|
|
pc = 0;
|
|
|
|
for (i_count = 0; i_count < header->instructionCount; i_count++) {
|
|
unsigned char opi, op = code[pc++];
|
|
struct src_insn *sp;
|
|
|
|
if (op == OP_CALL || op == OP_BLOCK_COPY)
|
|
fi.has_call = 1;
|
|
opi = vm_opInfo[op];
|
|
if (op == OP_CVIF || op == OP_CVFI ||
|
|
(op == OP_LEAVE && (opi & opArgF)))
|
|
fi.need_float_tmp = 1;
|
|
|
|
if (op == OP_ENTER) {
|
|
if (fi.first->next)
|
|
compile_function(vm, &fi);
|
|
fi.first->next = NULL;
|
|
fi.last = fi.first;
|
|
fi.has_call = fi.need_float_tmp = 0;
|
|
}
|
|
|
|
sp = Z_Malloc(sizeof(*sp));
|
|
sp->op = op;
|
|
sp->i_count = i_count;
|
|
sp->arg.i = 0;
|
|
sp->next = NULL;
|
|
|
|
if (vm_opInfo[op] & opImm4) {
|
|
union {
|
|
unsigned char b[4];
|
|
unsigned int i;
|
|
} c = { { code[ pc + 3 ], code[ pc + 2 ],
|
|
code[ pc + 1 ], code[ pc + 0 ] }, };
|
|
|
|
sp->arg.i = c.i;
|
|
pc += 4;
|
|
} else if (vm_opInfo[op] & opImm1) {
|
|
sp->arg.b = code[pc++];
|
|
}
|
|
|
|
fi.last->next = sp;
|
|
fi.last = sp;
|
|
}
|
|
compile_function(vm, &fi);
|
|
|
|
Z_Free(fi.first);
|
|
|
|
memset(fi.dst_by_i_count, 0, header->instructionCount * sizeof(void *));
|
|
sparc_compute_code(vm, &fi);
|
|
|
|
for (i = 0; i < header->instructionCount; i++) {
|
|
if (!fi.dst_by_i_count[i]) {
|
|
Com_Printf(S_COLOR_RED "Pointer %d not initialized !\n", i);
|
|
DIE("sparc JIT bug");
|
|
}
|
|
}
|
|
|
|
if (mprotect(vm->codeBase, vm->codeLength, PROT_READ|PROT_EXEC)) {
|
|
VM_Destroy_Compiled(vm);
|
|
DIE("mprotect failed");
|
|
}
|
|
|
|
vm->destroy = VM_Destroy_Compiled;
|
|
vm->compiled = qtrue;
|
|
}
|
|
|
|
int VM_CallCompiled(vm_t *vm, int *args)
|
|
{
|
|
vm_data_t *vm_dataAndCode = (void *) vm->codeBase;
|
|
int programStack = vm->programStack;
|
|
int stackOnEntry = programStack;
|
|
byte *image = vm->dataBase;
|
|
int *argPointer;
|
|
int retVal;
|
|
|
|
currentVM = vm;
|
|
|
|
vm->currentlyInterpreting = qtrue;
|
|
|
|
programStack -= ( 8 + 4 * MAX_VMMAIN_ARGS );
|
|
argPointer = (int *)&image[ programStack + 8 ];
|
|
memcpy( argPointer, args, 4 * MAX_VMMAIN_ARGS );
|
|
argPointer[-1] = 0;
|
|
argPointer[-2] = -1;
|
|
|
|
/* call generated code */
|
|
{
|
|
int (*entry)(void *, int, void *, int);
|
|
entry = (void *)(vm->codeBase + vm_dataAndCode->dataLength);
|
|
retVal = entry(vm->codeBase, programStack, vm->dataBase, vm->dataMask);
|
|
}
|
|
|
|
vm->programStack = stackOnEntry;
|
|
vm->currentlyInterpreting = qfalse;
|
|
|
|
return retVal;
|
|
}
|