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mosync_fast_vm_loop.js
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606 lines (528 loc) · 14.3 KB
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/*
Copyright (C) 2011 MoSync AB
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License,
version 2, as published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.
*/
Core.prototype.executeFast2 = function(opCount) {
var rd;
var rs;
var imm32;
var op;
var ip = this.ip;
var mem_cs = this.mem_cs;
var mem_ds = this.mem_ds;
var mem_cp = this.mem_cp;
var mem_cp32 = this.mem_cp.mem32;
var mem_csU8 = this.mem_cs.memU8;
var mem_dsU8 = this.mem_ds.memU8;
var mem_dsU16 = this.mem_ds.memU16;
var mem_ds32 = this.mem_ds.mem32;
var regs = this.regs;
try {
while(opCount) {
op = mem_csU8[ip++];
switch(op) {
case 0:
break;
case 1: // PUSH
rd = mem_csU8[ip++];
imm32 = mem_csU8[ip++];
if(rd < 2 || rd+imm32 > 32)
alert("Hell");
do {
regs[Reg.sp] -= 4;
//mem_ds.writeInt32(regs[Reg.sp], regs[rd]);
mem_ds32[regs[Reg.sp]>>>2] = regs[rd];
rd++;
imm32--;
} while(imm32 != 0);
break;
case 2: // POP
rd = mem_csU8[ip++];
imm32 = mem_csU8[ip++];
if(rd > 31 || rd-imm32 < 1)
alert("Hell");
do {
//regs[rd] = mem_ds.readInt32(regs[Reg.sp]);
regs[rd] = mem_ds32[regs[Reg.sp]>>>2];
regs[Reg.sp] += 4;
rd--;
imm32--;
} while(imm32 != 0);
break;
case 3: // CALL
rd = mem_csU8[ip++];
regs[Reg.rt] = ip;
ip = regs[rd];
break
case 4: // CALLI
imm32 = (mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
//console.log("calli addr: " + callAddr);
regs[Reg.rt] = ip;
ip = imm32 /*& CODE_SEGMENT_MASK*/;
break;
case 5: // LDB
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
imm32 = ((imm32=mem_csU8[ip++])>127)?mem_cp32[(((imm32&127)<<8)|mem_csU8[ip++])]:mem_cp32[imm32];
regs[rd] = mem_dsU8[regs[rs]+imm32];
break;
case 6: // STB
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
imm32 = ((imm32=mem_csU8[ip++])>127)?mem_cp32[(((imm32&127)<<8)|mem_csU8[ip++])]:mem_cp32[imm32];
mem_dsU8[regs[rd]+imm32] = regs[rs];
break;
case 7: // LDH
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
imm32 = ((imm32=mem_csU8[ip++])>127)?mem_cp32[(((imm32&127)<<8)|mem_csU8[ip++])]:mem_cp32[imm32];
regs[rd] = mem_dsU16[(regs[rs]+imm32)>>>1];
break;
case 8: // STH
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
imm32 = ((imm32=mem_csU8[ip++])>127)?mem_cp32[(((imm32&127)<<8)|mem_csU8[ip++])]:mem_cp32[imm32];
mem_dsU16[(regs[rd]+imm32)>>>1] = regs[rs];
break;
case 9: // LDW
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
imm32 = ((imm32=mem_csU8[ip++])>127)?mem_cp32[(((imm32&127)<<8)|mem_csU8[ip++])]:mem_cp32[imm32];
regs[rd] = mem_ds32[(regs[rs]+imm32)>>>2];
break;
case 10: // STW
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
imm32 = ((imm32=mem_csU8[ip++])>127)?mem_cp32[(((imm32&127)<<8)|mem_csU8[ip++])]:mem_cp32[imm32];
mem_ds32[(regs[rd]+imm32)>>>2] = regs[rs];
break;
case 11: // LDI
rd = mem_csU8[ip++];
imm32 = ((imm32=mem_csU8[ip++])>127)?mem_cp32[(((imm32&127)<<8)|mem_csU8[ip++])]:mem_cp32[imm32];
regs[rd] = imm32;
break;
case 12: // LDR
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
regs[rd] = regs[rs];
break;
case 13: // ADD
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
regs[rd] += regs[rs]; // maybe do (regs[rd]+regs[rs])|0
regs[rd] &= 0xffffffff;
break;
case 14: // ADDI
rd = mem_csU8[ip++];
imm32 = ((imm32=mem_csU8[ip++])>127)?mem_cp32[(((imm32&127)<<8)|mem_csU8[ip++])]:mem_cp32[imm32];
regs[rd] += imm32;
//regs[rd] &= 0xffffffff;
break;
case 15: // MUL
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
regs[rd] *= regs[rs];
regs[rd] &= 0xffffffff;
break;
case 16: // MULI
rd = mem_csU8[ip++];
imm32 = ((imm32=mem_csU8[ip++])>127)?mem_cp32[(((imm32&127)<<8)|mem_csU8[ip++])]:mem_cp32[imm32];
regs[rd] *= imm32;
regs[rd] &= 0xffffffff;
break;
case 17: // SUB
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
regs[rd] -= regs[rs];
regs[rd] &= 0xffffffff;
break;
case 18: // SUBI
rd = mem_csU8[ip++];
imm32 = ((imm32=mem_csU8[ip++])>127)?mem_cp32[(((imm32&127)<<8)|mem_csU8[ip++])]:mem_cp32[imm32];
regs[rd] -= imm32;
regs[rd] &= 0xffffffff;
break;
case 19: // AND
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
regs[rd] &= regs[rs];
break;
case 20: // ANDI
rd = mem_csU8[ip++];
imm32 = ((imm32=mem_csU8[ip++])>127)?mem_cp32[(((imm32&127)<<8)|mem_csU8[ip++])]:mem_cp32[imm32];
regs[rd] &= imm32;
break;
case 21: // OR
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
regs[rd] |= regs[rs];
break;
case 22: // ORI
rd = mem_csU8[ip++];
imm32 = ((imm32=mem_csU8[ip++])>127)?mem_cp32[(((imm32&127)<<8)|mem_csU8[ip++])]:mem_cp32[imm32];
regs[rd] |= imm32;
break;
case 23: // XOR
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
regs[rd] ^= regs[rs];
break;
case 24: // XORI
rd = mem_csU8[ip++];
imm32 = ((imm32=mem_csU8[ip++])>127)?mem_cp32[(((imm32&127)<<8)|mem_csU8[ip++])]:mem_cp32[imm32];
regs[rd] ^= imm32;
break;
case 25: // DIVU
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
regs[rd] = ((regs[rd]>>>0)/(regs[rs]>>>0)) | 0;
regs[rd] &= 0xffffffff;
break;
case 26: // DIVUI
rd = mem_csU8[ip++];
imm32 = ((imm32=mem_csU8[ip++])>127)?mem_cp32[(((imm32&127)<<8)|mem_csU8[ip++])]:mem_cp32[imm32];
regs[rd] = ((regs[rd]>>>0)/(imm32>>>0)) | 0;
regs[rd] &= 0xffffffff;
break;
case 27: // DIV
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
regs[rd] = (regs[rd]/regs[rs]) | 0;
regs[rd] &= 0xffffffff;
break;
case 28: // DIVI
rd = mem_csU8[ip++];
imm32 = ((imm32=mem_csU8[ip++])>127)?mem_cp32[(((imm32&127)<<8)|mem_csU8[ip++])]:mem_cp32[imm32];
regs[rd] = (regs[rd]/imm32) | 0;
regs[rd] &= 0xffffffff;
break;
case 29: // SLL
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
regs[rd] <<= regs[rs];
regs[rd] &= 0xffffffff;
break;
case 30: // SLLI
rd = mem_csU8[ip++];
imm32 = mem_csU8[ip++];
regs[rd] <<= imm32;
regs[rd] &= 0xffffffff;
break;
case 31: // SRA
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
regs[rd] >>= regs[rs];
break;
case 32: // SRAI
rd = mem_csU8[ip++];
imm32 = mem_csU8[ip++];
regs[rd] >>= imm32;
break;
case 33: // SRL
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
regs[rd] >>>= regs[rs];
break;
case 34: // SRLI
rd = mem_csU8[ip++];
imm32 = mem_csU8[ip++];
regs[rd] >>>= imm32;
break;
case 35: // NOT
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
regs[rd] = ~regs[rs];
regs[rd] &= 0xffffffff;
break;
case 36: // NEG
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
regs[rd] = -regs[rs];
regs[rd] &= 0xffffffff;
break;
case 37: // RET
ip = regs[Reg.rt];
break;
case 38: // JC_EQ
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if((regs[rd]>>>0) == (regs[rs]>>>0)) {
imm32 = (mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 2;
}
break;
case 39: // JC_NE
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if((regs[rd]>>>0) != (regs[rs]>>>0)) {
imm32 = (mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 2;
}
break;
case 40: // JC_GE
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if(regs[rd] >= regs[rs]) {
imm32 = (mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 2;
}
break;
case 41: // JC_GEU
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if((regs[rd]>>>0) >= (regs[rs]>>>0)) {
imm32 = (mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 2;
}
break;
case 42: // JC_GT
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if(regs[rd] > regs[rs]) {
imm32 = (mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 2;
}
break;
case 43: // JC_GTU
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if((regs[rd]>>>0) > (regs[rs]>>>0)) {
imm32 = (mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 2;
}
break;
case 44: // JC_LE
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if(regs[rd] <= regs[rs]) {
imm32 = (mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 2;
}
break;
case 45: // JC_LEU
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if((regs[rd]>>>0) <= (regs[rs]>>>0)) {
imm32 = (mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 2;
}
break;
case 46: // JC_LT
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if(regs[rd] < regs[rs]) {
imm32 = (mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 2;
}
break;
case 47: // JC_LTU
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if((regs[rd]>>>0) < (regs[rs]>>>0)) {
imm32 = (mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 2;
}
break;
case 48: // JPI
imm32 = (mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
break;
case 49: // JPR
rd = mem_csU8[ip++];
ip = regs[rd];
break;
case 50: // XB
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
regs[rd] = ((regs[rs]&0x80) == 0) ? (regs[rs] & 0xff) : (regs[rs] | 0xffffff00);
break;
case 51: // XH
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
regs[rd] = ((regs[rs]&0x8000) == 0) ? (regs[rs] & 0xffff) : (regs[rs] | 0xffff0000);
break;
case 52: // SYSCALL
imm32 = mem_csU8[ip++];
this.invokeSyscall(imm32);
break;
case 53: // CASE
rd = mem_csU8[ip++];
imm32 = (mem_csU8[ip++]<<16)|(mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
imm32 <<= 2;
var caseStart = mem_ds.readUint32(imm32);
var caseLength = mem_ds.readUint32(imm32 + 4);
var index = ((regs[rd]>>>0) - caseStart)>>>0;
if(index <= caseLength) {
tableAddr = imm32 + 12; // 3*sizeof(int)
ip = mem_ds.readUint32(tableAddr + index*4); // index*sizeof(int)
} else {
defaultCaseAddr = mem_ds.readUint32(imm32 + 8); // 2*sizeof(int)
ip = defaultCaseAddr;
}
break;
case 54: // FAR
op = mem_csU8[ip++];
switch(op) {
case 4: // CALLI
imm32 = (mem_csU8[ip++]<<16)|(mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
regs[Reg.rt] = ip;
ip = imm32 /*& CODE_SEGMENT_MASK*/;
break;
case 38: // JC_EQ
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if(regs[rd] == regs[rs]) {
imm32 = (mem_csU8[ip++]<<16)|(mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 3;
}
break;
case 39: // JC_NE
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if((regs[rd]>>>0) != (regs[rs]>>>0)) {
imm32 = (mem_csU8[ip++]<<16)|(mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 3;
}
break;
case 40: // JC_GE
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if(regs[rd] >= regs[rs]) {
imm32 = (mem_csU8[ip++]<<16)|(mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 3;
}
break;
case 41: // JC_GEU
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if((regs[rd]>>>0) >= (regs[rs]>>>0)) {
imm32 = (mem_csU8[ip++]<<16)|(mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 3;
}
break;
case 42: // JC_GT
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if(regs[rd] > regs[rs]) {
imm32 = (mem_csU8[ip++]<<16)|(mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 3;
}
break;
case 43: // JC_GTU
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if((regs[rd]>>>0) > (regs[rs]>>>0)) {
imm32 = (mem_csU8[ip++]<<16)|(mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 3;
}
break;
case 44: // JC_LE
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if(regs[rd] <= regs[rs]) {
imm32 = (mem_csU8[ip++]<<16)|(mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 3;
}
break;
case 45: // JC_LEU
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if((regs[rd]>>>0) <= (regs[rs]>>>0)) {
imm32 = (mem_csU8[ip++]<<16)|(mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 3;
}
break;
case 46: // JC_LT
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if(regs[rd] < regs[rs]) {
imm32 = (mem_csU8[ip++]<<16)|(mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 3;
}
break;
case 47: // JC_LTU
rd = mem_csU8[ip++];
rs = mem_csU8[ip++];
if((regs[rd]>>>0) < (regs[rs]>>>0)) {
imm32 = (mem_csU8[ip++]<<16)|(mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
} else {
ip += 3;
}
break;
case 48: // JPI
imm32 = (mem_csU8[ip++]<<16)|(mem_csU8[ip++]<<8)|(mem_csU8[ip++]);
ip = imm32;
break;
}
break;
}
opCount--;
}
} catch(e) {
if(e.type == "sleep") {
this.sleepVm(e.data);
}
else if(e.type == "animationFrame") {
this.requestAnimationFrame();
}
else {
opStr = "";
for(key in Op) {
if(Op[key] == op) {
opStr = key;
}
}
console.log(e + " " + opStr);
}
}
this.ip = ip;
}