void Phaser::changepar(int npar, unsigned char value)
{
switch (npar)
{
case 0:
setvolume(value);
break;
case 1:
setpanning(value);
break;
case 2:
lfo.Pfreq = value;
lfo.updateparams();
break;
case 3:
lfo.Prandomness = value;
lfo.updateparams();
break;
case 4:
lfo.PLFOtype = value;
lfo.updateparams();
barber = (2 == value);
break;
case 5:
lfo.Pstereo = value;
lfo.updateparams();
break;
case 6:
setdepth(value);
break;
case 7:
setfb(value);
break;
case 8:
setstages(value);
break;
case 9:
setlrcross(value);
setoffset(value);
break;
case 10:
Poutsub = (value > 1) ? 1 : value;
break;
case 11:
setphase(value);
setwidth(value);
break;
case 12:
Phyper = min((int)value, 1);
break;
case 13:
setdistortion(value);
break;
case 14:
Panalog = value;
break;
}
}
/* CLEAR-SUBR subr */
LVAL xclearsubr()
{
LVAL x = xlgasubr();
xllastarg();
setsubr(x, errsubr);
setoffset(x, 0);
setmulvalp(x, FALSE);
return NIL;
}
void
Analog_Phaser::changepar (int npar, int value)
{
switch (npar)
{
case 0:
setvolume (value);
break;
case 1:
setdistortion (value);
break;
case 2:
lfo.Pfreq = value;
lfo.updateparams ();
break;
case 3:
lfo.Prandomness = value;
lfo.updateparams ();
break;
case 4:
lfo.PLFOtype = value;
lfo.updateparams ();
barber = 0;
if (value == 2) barber = 1;
break;
case 5:
lfo.Pstereo = value;
lfo.updateparams ();
break;
case 6:
setwidth (value);
break;
case 7:
setfb (value);
break;
case 8:
setstages (value);
break;
case 9:
setoffset (value);
break;
case 10:
if (value > 1)
value = 1;
Poutsub = value;
break;
case 11:
setdepth (value);
break;
case 12:
if (value > 1)
value = 1;
Phyper = value;
break;
};
};
char* reg(FILE* fp,Operand h,int flag){
if(h->kind==CONSTANT){
fprintf(fp,"li $t%d, %d\n",flag,h->u.value);
if(flag==1)
return "$t1";
else if(flag==2)
return "$t2";
else
return "$t3";
}
if(getoffset(h)!=-1){
if(flag==1){
fprintf(fp,"lw $t1, %d($sp)\n",getoffset(h));
return "$t1";
}
if(flag==2){
fprintf(fp,"lw $t2, %d($sp)\n",getoffset(h));
return "$t2";
}
if(flag==3){
fprintf(fp,"lw $t3, %d($sp)\n",getoffset(h));
return "$t3";
}
}
else{
setoffset(h,stackoffset);
stackoffset=stackoffset+4;
if(flag==1)
return "$t1";
else if(flag==2)
return "$t2";
else
return "$t3";
}
}
void mipscode(code* h,char* filename){
FILE *fp=fopen(filename,"w");
if(fp==NULL){
printf("fail to open file\n");
return;
}
fprintf(fp,".data\n");
fprintf(fp,"_prompt: .asciiz \"Enter an integer:\"\n");
fprintf(fp,"_ret: .asciiz \"\\n\"\n");
fprintf(fp,".globl main\n");
fprintf(fp,".text\n");
fprintf(fp,"read:\n");
fprintf(fp,"li $v0, 4\n");
fprintf(fp,"la $a0, _prompt\n");
fprintf(fp,"syscall\n");
fprintf(fp,"li $v0 5\n");
fprintf(fp,"syscall\n");
fprintf(fp,"jr $ra\n");
fprintf(fp,"\n");
fprintf(fp,"write:\n");
fprintf(fp,"li $v0, 1\n");
fprintf(fp,"syscall\n");
fprintf(fp,"li $v0, 4\n");
fprintf(fp,"la $a0, _ret\n");
fprintf(fp,"syscall\n");
fprintf(fp,"move $v0, $0\n");
fprintf(fp,"jr $ra\n");
fprintf(fp,"\n");
printf("begin hhh\n");
code* p=h;
code *tempcode;
while(p!=NULL){
switch(p->word.kind){
case LAB:
fprintf(fp,"%s:\n",getop(p->word.u.lab.op1));
break;
case ASSIGN:
if(p->word.u.assign.right->kind==CONSTANT){
fprintf(fp,"li %s, %d\n",reg(fp,p->word.u.assign.left,1),p->word.u.assign.right->u.value);
save(fp,p->word.u.assign.left,1);
}
else{
fprintf(fp,"move %s, %s\n",reg(fp,p->word.u.assign.left,1),reg(fp,p->word.u.assign.right,2));
save(fp,p->word.u.assign.left,1);
}
break;
case ADD:
fprintf(fp,"add %s, %s, %s\n",reg(fp,p->word.u.calcu.result,1),reg(fp,p->word.u.calcu.op1,2),reg(fp,p->word.u.calcu.op2,3));
save(fp,p->word.u.calcu.result,1);
break;
case MIN:
fprintf(fp,"sub %s, %s, %s\n",reg(fp,p->word.u.calcu.result,1),reg(fp,p->word.u.calcu.op1,2),reg(fp,p->word.u.calcu.op2,3));
save(fp,p->word.u.calcu.result,1);
break;
case MUL:
fprintf(fp,"mul %s, %s, %s\n",reg(fp,p->word.u.calcu.result,1),reg(fp,p->word.u.calcu.op1,2),reg(fp,p->word.u.calcu.op2,3));
save(fp,p->word.u.calcu.result,1);
break;
case DIVID:
fprintf(fp,"div %s, %s\n",reg(fp,p->word.u.calcu.op1,2),reg(fp,p->word.u.calcu.op2,3));
fprintf(fp,"mflo %s\n",reg(fp,p->word.u.calcu.result,1));
save(fp,p->word.u.calcu.result,1);
break;
case ADDRTO:
fprintf(fp,"lw %s, 0(%s)\n",reg(fp,p->word.u.assign.left,1),reg(fp,p->word.u.assign.right,2));
save(fp,p->word.u.assign.left,1);
break;
case TOADD:
fprintf(fp,"sw %s,0(%s)\n",reg(fp,p->word.u.assign.right,1),reg(fp,p->word.u.assign.left,2));
break;
case GOTO:
fprintf(fp,"j %s\n",getop(p->word.u.got.op1));
break;
case CALL:
case READ:
case WRITE:
parnum=0;
if(p->word.kind==WRITE)
fprintf(fp,"move $a0, %s\n",reg(fp,p->word.u.ret.op1,1));
fprintf(fp,"addi $sp, $sp, %d\n",stackoffset+4);
fprintf(fp,"sw $ra, -4($sp)\n");
if(p->word.kind==CALL)
fprintf(fp,"jal %s\n",getop(p->word.u.assign.right));
else if(p->word.kind==READ)
fprintf(fp,"jal read\n");
else{
fprintf(fp,"jal write\n");
}
fprintf(fp,"lw $ra, -4($sp)\n");
fprintf(fp,"addi $sp, $sp, -%d\n",stackoffset+4);
if(p->word.kind==CALL)
fprintf(fp,"move %s,$v0\n",reg(fp,p->word.u.assign.left,1));
else
fprintf(fp,"move %s,$v0\n",reg(fp,p->word.u.ret.op1,1));
if(p->word.kind==CALL)
save(fp,p->word.u.assign.left,1);
else
save(fp,p->word.u.ret.op1,1);
break;
case RET:
fprintf(fp,"move $v0, %s\n",reg(fp,p->word.u.ret.op1,1));
fprintf(fp,"jr $ra\n");
break;
case IFGOTO:
printf("%s\n",getop(p->word.u.ifgoto.op4));
if(strcmp(getop(p->word.u.ifgoto.op2),"==")==0)
fprintf(fp,"beq %s, %s, %s\n",reg(fp,p->word.u.ifgoto.op1,1),reg(fp,p->word.u.ifgoto.op3,2),getop(p->word.u.ifgoto.op4));
else if(strcmp(getop(p->word.u.ifgoto.op2),"!=")==0)
fprintf(fp,"bne %s, %s, %s\n",reg(fp,p->word.u.ifgoto.op1,1),reg(fp,p->word.u.ifgoto.op3,2),getop(p->word.u.ifgoto.op4));
else if(strcmp(getop(p->word.u.ifgoto.op2),">")==0)
fprintf(fp,"bgt %s, %s, %s\n",reg(fp,p->word.u.ifgoto.op1,1),reg(fp,p->word.u.ifgoto.op3,2),getop(p->word.u.ifgoto.op4));
else if(strcmp(getop(p->word.u.ifgoto.op2),"<")==0)
fprintf(fp,"blt %s, %s, %s\n",reg(fp,p->word.u.ifgoto.op1,1),reg(fp,p->word.u.ifgoto.op3,2),getop(p->word.u.ifgoto.op4));
else if(strcmp(getop(p->word.u.ifgoto.op2),">=")==0)
fprintf(fp,"bge %s, %s, %s\n",reg(fp,p->word.u.ifgoto.op1,1),reg(fp,p->word.u.ifgoto.op3,2),getop(p->word.u.ifgoto.op4));
else
fprintf(fp,"ble %s, %s, %s\n",reg(fp,p->word.u.ifgoto.op1,1),reg(fp,p->word.u.ifgoto.op3,2),getop(p->word.u.ifgoto.op4));
break;
case FUNCTION:
fprintf(fp, "\n");
fprintf(fp,"%s:\n",getop(p->word.u.ret.op1));
stackoffset=0;
break;
case ARG:
while(p->next->word.kind == ARG)p=p->next;
tempcode = p;
parnum = 0;
while(tempcode->word.kind==ARG){
if(parnum<=3){
fprintf(fp,"move $a%d, %s\n",parnum,reg(fp,tempcode->word.u.ret.op1,1));
parnum++;
}
else{
fprintf(fp,"sw %s, %d($sp)\n",reg(fp,tempcode->word.u.ret.op1,1),stackoffset+4+(parnum-4)*4);
parnum++;
}
tempcode = tempcode->pre;
}
break;
case PARAM:
tempcode = p;
parnum=0;
while(tempcode->word.kind == PARAM){
parnum++;
tempcode=tempcode->next;
}
tempcode = p;
if(parnum<=4)
stackoffset = 0;
else
stackoffset = (parnum-4)*4;
for(int i=0;i<parnum;i++){
setoffset(tempcode->word.u.ret.op1,stackoffset);
stackoffset+=4;
tempcode=tempcode->next;
}
tempcode = p;
for(int i=0;i<4 && tempcode->word.kind == PARAM;i++){
fprintf(fp, "sw $a%d, %d($sp)\n",i,getoffset(tempcode->word.u.ret.op1));
tempcode = tempcode->next;
}
if(parnum>=4){
for(int i=4;i<=parnum;++i){
fprintf(fp, "lw $t1, %d($sp)\n", (i-4)*4);
fprintf(fp, "sw $t1, %d($sp)\n", getoffset(tempcode->word.u.ret.op1));
tempcode = tempcode->next;
}
}
for(;p->next->word.kind == PARAM;p=p->next);
parnum=0;
break;
/*for(int i=4;i<parnum;i++){
if(i<4)
fprintf(fp,"sw $a%d, %d($sp)\n",i,(i+parnum-4)*4);
else{
fprintf(fp,"lw $t1, %d($sp)\n",(i-4)*4);
fprintf(fp,"sw $t1, %d($sp)\n",(i+parnum-4)*4);
}
}
else
for(int i=0;i<parnum;i++)
fprintf(fp,"sw $a%d, %d($sp)\n",i,i*4);
for(;p->next->word.kind==PARAM;)
p=p->next;
*/
default:
printf("not finished\n");
}
p=p->next;
}
fclose(fp);
return;
}
/* block_hook - called at block entry */
static void block_hook(void *cl, Symbol *p) {
while (*p)
setoffset(*p++, tos);
}