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- /* parse1.c 9-9-92 parser functions for instruction set 1 */
- /* Tierra Simulator V4.0: Copyright (c) 1991, 1992 Tom Ray & Virtual Life */
-
- #if INST == 1
-
- /* in INST == 1, the array of registers maps into the registers ax, bx, cx, dx
- as follows: c.re[0] = ax, c.re[1] = bx, c.re[2] = cx, c.re[3] = dx
-
- {0x00, "nop0", nop, pnop},
- {0x01, "nop1", nop, pnop},
- {0x02, "not0", not0, pnot0},
- {0x03, "shl", shl, pshl},
- {0x04, "zero", movdd, pzero},
- {0x05, "ifz", ifz, pifz},
- {0x06, "sub_ab", math, psub_ab},
- {0x07, "sub_ac", math, psub_ac},
- {0x08, "inc_a", math, pinc_a},
- {0x09, "inc_b", math, pinc_b},
- {0x0a, "dec_c", math, pdec_c},
- {0x0b, "inc_c", math, pinc_c},
- {0x0c, "pushax", push, ppushax},
- {0x0d, "pushbx", push, ppushbx},
- {0x0e, "pushcx", push, ppushcx},
- {0x0f, "pushdx", push, ppushdx},
- {0x10, "popax", pop, ppopax},
- {0x11, "popbx", pop, ppopbx},
- {0x12, "popcx", pop, ppopcx},
- {0x13, "popdx", pop, ppopdx},
- {0x14, "jmp", adr, ptjmp},
- {0x15, "jmpb", adr, ptjmpb},
- {0x16, "call", tcall, ptcall},
- {0x17, "ret", pop, pret},
- {0x18, "movcd", movdd, pmovdc},
- {0x19, "movab", movdd, pmovba},
- {0x1a, "movii", movii, pmovii},
- {0x1b, "adr", adr, padr},
- {0x1c, "adrb", adr, padrb},
- {0x1d, "adrf", adr, padrf},
- {0x1e, "mal", malchm, pmal},
- {0x1f, "divide", divide, pdivide}
- */
-
- void pnop(ce) /* do nothing */
- Pcells ce;
- { is.iip = is.dib = 1;
- }
-
-
- /* void not0(ce) *(is.dreg) ^= (1 + flaw(ce));
- * is.dreg = destination register, whose bit will be flipped
- * is.dmod = value by which to modulus destination register
- * is.dran = range within which to contain destination register
- */
- void pnot0(ce) /* flip low order bit of cx */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.dreg = &(ce->c.re[2]);
- is.dran = SoupSize;
- }
-
-
- /* void shl(ce) *(is.dreg) <<= (Reg) (1 + flaw(ce));
- * is.dreg = destination register, whose bits will be shifted left
- * is.dmod = value by which to modulus destination register
- * is.dran = range within which to contain destination register
- */
- void pshl(ce) /* shift left all register of cx */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.dreg = &(ce->c.re[2]);
- is.dran = SoupSize;
- }
-
- /* void movdd(ce) *(is.dreg) = is.sval + flaw(ce);
- * is.dreg = destination register, where moved value will be placed
- * is.sval = value to be placed in the dest reg
- * is.dmod = value by which to modulus destination register
- * is.dran = range within which to contain destination register
- */
- void pzero(ce) /* cx = 0 */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.dreg = &(ce->c.re[2]);
- is.sval = 0;
- }
-
- /* void ifz(ce) if (is.sval + flaw(ce)) is.iip = is.sval2;
- * is.sval = value to test for zero
- * is.sval2 = amount to increment IP if is.sval == 0
- * is.iip = amount to increment IP if is.sval != 0
- */
- void pifz(ce) /* execute next instruction, if is.sval == 0 */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.sval = ce->c.re[2];
- is.sval2 = 2;
- }
-
- /* void math(ce) *(is.dreg) = is.sval + is.sval2 + flaw(ce);
- * is.dreg = destination register, where calculation will be stored
- * is.sval = a value that will be added to is.sval2 and placed in dest reg
- * is.sval2 = a value that will be added to is.sval and placed in dest reg
- * is.dmod = value by which to modulus destination register
- * is.dran = range within which to contain destination register
- */
- void psub_ab(ce) /* cx = ax - bx */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.dreg = &(ce->c.re[2]);
- is.sval = ce->c.re[0];
- is.sval2 = -ce->c.re[1];
- is.dran = SoupSize;
- }
-
- /* void math(ce) *(is.dreg) = is.sval + is.sval2 + flaw(ce);
- * is.dreg = destination register, where calculation will be stored
- * is.sval = a value that will be added to is.sval2 and placed in dest reg
- * is.sval2 = a value that will be added to is.sval and placed in dest reg
- * is.dmod = value by which to modulus destination register
- * is.dran = range within which to contain destination register
- */
- void psub_ac(ce) /* ax = ax - cx */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.dreg = &(ce->c.re[0]);
- is.sval = ce->c.re[0];
- is.sval2 = -ce->c.re[2];
- is.dmod = SoupSize;
- }
-
- /* void math(ce) *(is.dreg) = is.sval + is.sval2 + flaw(ce);
- * is.dreg = destination register, where calculation will be stored
- * is.sval = a value that will be added to is.sval2 and placed in dest reg
- * is.sval2 = a value that will be added to is.sval and placed in dest reg
- * is.dmod = value by which to modulus destination register
- * is.dran = range within which to contain destination register
- */
- void pinc_a(ce) /* ax++ */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.dreg = &(ce->c.re[0]);
- is.sval = ce->c.re[0];
- is.sval2 = 1;
- is.dmod = SoupSize;
- }
-
- /* void math(ce) *(is.dreg) = is.sval + is.sval2 + flaw(ce);
- * is.dreg = destination register, where calculation will be stored
- * is.sval = a value that will be added to is.sval2 and placed in dest reg
- * is.sval2 = a value that will be added to is.sval and placed in dest reg
- * is.dmod = value by which to modulus destination register
- * is.dran = range within which to contain destination register
- */
- void pinc_b(ce) /* bx++ */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.dreg = &(ce->c.re[1]);
- is.sval = ce->c.re[1];
- is.sval2 = 1;
- is.dmod = SoupSize;
- }
-
- /* void math(ce) *(is.dreg) = is.sval + is.sval2 + flaw(ce);
- * is.dreg = destination register, where calculation will be stored
- * is.sval = a value that will be added to is.sval2 and placed in dest reg
- * is.sval2 = a value that will be added to is.sval and placed in dest reg
- * is.dmod = value by which to modulus destination register
- * is.dran = range within which to contain destination register
- */
- void pdec_c(ce) /* cx-- */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.dreg = &(ce->c.re[2]);
- is.sval = ce->c.re[2];
- is.sval2 = -1;
- is.dran = SoupSize;
- }
-
- /* void math(ce) *(is.dreg) = is.sval + is.sval2 + flaw(ce);
- * is.dreg = destination register, where calculation will be stored
- * is.sval = a value that will be added to is.sval2 and placed in dest reg
- * is.sval2 = a value that will be added to is.sval and placed in dest reg
- * is.dmod = value by which to modulus destination register
- * is.dran = range within which to contain destination register
- */
- void pinc_c(ce) /* cx++ */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.dreg = &(ce->c.re[2]);
- is.sval = ce->c.re[2];
- is.sval2 = 1;
- is.dran = SoupSize;
- }
-
- /* void push(ce) ce->c.sp = ++ce->c.sp % STACK_SIZE;
- * ce->c.st[ce->c.sp] = is.sval + flaw(ce);
- * is.sval = value to be pushed onto the stack
- */
- void ppushax(ce) /* push ax onto stack */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.sval = ce->c.re[0];
- }
-
- /* void push(ce) ce->c.sp = ++ce->c.sp % STACK_SIZE;
- * ce->c.st[ce->c.sp] = is.sval + flaw(ce);
- * is.sval = value to be pushed onto the stack
- */
- void ppushbx(ce) /* push bx onto stack */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.sval = ce->c.re[1];
- }
-
- /* void push(ce) ce->c.sp = ++ce->c.sp % STACK_SIZE;
- * ce->c.st[ce->c.sp] = is.sval + flaw(ce);
- * is.sval = value to be pushed onto the stack
- */
- void ppushcx(ce) /* push cx onto stack */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.sval = ce->c.re[2];
- }
-
- /* void push(ce) ce->c.sp = ++ce->c.sp % STACK_SIZE;
- * ce->c.st[ce->c.sp] = is.sval + flaw(ce);
- * is.sval = value to be pushed onto the stack
- */
- void ppushdx(ce) /* push dx onto stack */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.sval = ce->c.re[3];
- }
-
- /* void pop(ce) *(is.dreg) = ce->c.st[ce->c.sp] + flaw(ce);
- * if (!ce->c.sp) ce->c.sp = STACK_SIZE - 1; else --ce->c.sp;
- * is.dreg = destination register, where value popped off stack will go
- * is.dmod = value by which to modulus destination register
- * is.dran = range within which to contain destination register
- */
- void ppopax(ce) /* pop ax off of stack */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.dreg = &(ce->c.re[0]);
- is.dmod = SoupSize;
- }
-
- /* void pop(ce) *(is.dreg) = ce->c.st[ce->c.sp] + flaw(ce);
- * if (!ce->c.sp) ce->c.sp = STACK_SIZE - 1; else --ce->c.sp;
- * is.dreg = destination register, where value popped off stack will go
- * is.dmod = value by which to modulus destination register
- * is.dran = range within which to contain destination register
- */
- void ppopbx(ce) /* pop bx off of stack */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.dreg = &(ce->c.re[1]);
- is.dmod = SoupSize;
- }
-
- /* void pop(ce) *(is.dreg) = ce->c.st[ce->c.sp] + flaw(ce);
- * if (!ce->c.sp) ce->c.sp = STACK_SIZE - 1; else --ce->c.sp;
- * is.dreg = destination register, where value popped off stack will go
- * is.dmod = value by which to modulus destination register
- * is.dran = range within which to contain destination register
- */
- void ppopcx(ce) /* pop cx off of stack */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.dreg = &(ce->c.re[2]);
- is.dran = SoupSize;
- }
-
- /* void pop(ce) *(is.dreg) = ce->c.st[ce->c.sp] + flaw(ce);
- * if (!ce->c.sp) ce->c.sp = STACK_SIZE - 1; else --ce->c.sp;
- * is.dreg = destination register, where value popped off stack will go
- * is.dmod = value by which to modulus destination register
- * is.dran = range within which to contain destination register
- */
- void ppopdx(ce) /* pop dx off of stack */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.dreg = &(ce->c.re[3]);
- is.dran = SoupSize;
- }
-
- /* void adr(ce) find address of a template
- * is.mode = search mode: 1 = forward, 2 = backward, 0 = outward
- * is.mode2 = preference: 1 = forward, 2 = backward, and return for
- * direction found: 1 = forward, 2 = backward, 3 = both, 0 = none
- * is.dval = starting address for forward search
- * is.dval2 = starting address for backward search
- * is.dreg = destination register where target address will be stored
- * is.dreg2 = destination register where template size will be stored
- * is.dreg3 = destination register where offset of target will be stored
- * is.sval = return address if template size = 0
- * is.sval2 = template size, 0 = no template
- * is.sval3 = search limit, and return for distance actually searched
- * is.dmod = modulus value for is.dreg
- * is.dmod2 = modulus value for is.dreg2
- * is.dmod3 = modulus value for is.dreg3
- * is.dran = range to maintain for is.dreg
- * is.dran2 = range to maintain for is.dreg2
- * is.dran3 = range to maintain for is.dreg3
- */
- void ptjmp(ce) /* outward template jump */
- Pcells ce;
- { I32s a, s = 0;
-
- is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- a = ad(ce->c.ip + 1); /* a = address of start of template */
- while(1) /* find size of template, s = size */
- {
- #if PLOIDY == 1
- if(soup[ad(a + s)].inst != Nop0 &&
- soup[ad(a + s)].inst != Nop1)
- #else /* PLOIDY > 1 */
- if(soup[ad(a + s)][ce->d.tr].inst != Nop0 &&
- soup[ad(a + s)][ce->d.tr].inst != Nop1)
- #endif /* PLOIDY > 1 */
- break;
- s++;
- }
- is.dreg = &(ce->c.ip); /* destination register for address */
- is.dreg2 = &(ce->c.re[3]); /* destination register for template size */
- is.dreg3 = &BitBucket;
- is.sval = a; /* if template size == 0, increment IP */
- is.sval2 = s; /* size of template */
- is.sval3 = Search_limit;
- is.dval = ad(a + s + 1); /* start address for forward search */
- is.dval2 = ad(a - s - 1); /* start address for backward search */
- is.dmod = SoupSize;
- is.dran2 = SoupSize;
- is.mode = 0; /* outward jump */
- is.mode2 = 1;
- is.dib = 1;
- is.iip = 0;
- }
-
- /* void adr(ce) find address of a template
- * is.mode = search mode: 1 = forward, 2 = backward, 0 = outward
- * is.mode2 = preference: 1 = forward, 2 = backward, and return for
- * direction found: 1 = forward, 2 = backward, 3 = both, 0 = none
- * is.dval = starting address for forward search
- * is.dval2 = starting address for backward search
- * is.dreg = destination register where target address will be stored
- * is.dreg2 = destination register where template size will be stored
- * is.dreg3 = destination register where offset of target will be stored
- * is.sval = return address if template size = 0
- * is.sval2 = template size, 0 = no template
- * is.sval3 = search limit, and return for distance actually searched
- * is.dmod = modulus value for is.dreg
- * is.dmod2 = modulus value for is.dreg2
- * is.dmod3 = modulus value for is.dreg3
- * is.dran = range to maintain for is.dreg
- * is.dran2 = range to maintain for is.dreg2
- * is.dran3 = range to maintain for is.dreg3
- */
- void ptjmpb(ce) /* backward template jump */
- Pcells ce;
- { I32s a, s = 0;
-
- is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- a = ad(ce->c.ip + 1); /* a = address of start of template */
- while(1) /* find size of template, s = size */
- {
- #if PLOIDY == 1
- if(soup[ad(a + s)].inst != Nop0 &&
- soup[ad(a + s)].inst != Nop1)
- #else /* PLOIDY > 1 */
- if(soup[ad(a + s)][ce->d.tr].inst != Nop0 &&
- soup[ad(a + s)][ce->d.tr].inst != Nop1)
- #endif /* PLOIDY > 1 */
- break;
- s++;
- }
- is.dreg = &(ce->c.ip); /* destination register for address */
- is.dreg2 = &(ce->c.re[3]); /* destination register for template size */
- is.dreg3 = &BitBucket;
- is.sval = a; /* if template size == 0, increment IP */
- is.sval2 = s; /* size of template */
- is.sval3 = Search_limit;
- is.dmod = SoupSize;
- is.dran2 = SoupSize;
- is.dval = ad(a + s + 1); /* start address for forward search */
- is.dval2 = ad(a - s - 1); /* start address for backward search */
- is.mode = 2; /* backward jump */
- is.mode2 = 2;
- is.dib = 1;
- is.iip = 0;
- }
-
- /* void tcall(ce) adr(ce); push(ce); */
- /* void adr(ce) find address of a template
- * is.mode = search mode: 1 = forward, 2 = backward, 0 = outward
- * is.mode2 = preference: 1 = forward, 2 = backward, and return for
- * direction found: 1 = forward, 2 = backward, 3 = both, 0 = none
- * is.dval = starting address for forward search
- * is.dval2 = starting address for backward search
- * is.dreg = destination register where target address will be stored
- * is.dreg2 = destination register where template size will be stored
- * is.dreg3 = destination register where offset of target will be stored
- * is.sval = return address if template size = 0
- * is.sval2 = template size, 0 = no template
- * is.sval3 = search limit, and return for distance actually searched
- * is.dmod = modulus value for is.dreg
- * is.dmod2 = modulus value for is.dreg2
- * is.dmod3 = modulus value for is.dreg3
- * is.dran = range to maintain for is.dreg
- * is.dran2 = range to maintain for is.dreg2
- * is.dran3 = range to maintain for is.dreg3
- */
- /* void push(ce) ce->c.sp = ++ce->c.sp % STACK_SIZE;
- * ce->c.st[ce->c.sp] = is.sval + flaw(ce);
- * is.sval = value to be pushed onto the stack
- */
- void ptcall(ce) /* push ip to stack, outward template jump */
- Pcells ce; /* this maps to adr followed by push */
- { I32s a, s = 0;
-
- is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- a = ad(ce->c.ip + 1); /* a = address of start of template */
- while(1) /* find size of template, s = size */
- {
- #if PLOIDY == 1
- if(soup[ad(a + s)].inst != Nop0 &&
- soup[ad(a + s)].inst != Nop1)
- #else /* PLOIDY > 1 */
- if(soup[ad(a + s)][ce->d.tr].inst != Nop0 &&
- soup[ad(a + s)][ce->d.tr].inst != Nop1)
- #endif /* PLOIDY > 1 */
- break;
- s++;
- }
- is.dreg = &(ce->c.ip); /* destination register for address */
- is.dreg2 = &(ce->c.re[3]); /* destination register for template size */
- is.dreg3 = &BitBucket;
- is.sval = ad(ce->c.ip + s + 1); /* address to be pushed onto stack */
- is.sval2 = s; /* size of template */
- is.sval3 = Search_limit;
- is.dmod = SoupSize;
- is.dran2 = SoupSize;
- is.dval = ad(a + s + 1); /* start address for forward search */
- is.dval2 = ad(a - s - 1); /* start address for backward search */
- is.mode = 0; /* outward jump */
- is.mode2 = 1;
- is.dib = 1;
- is.iip = 0;
- }
-
- /* void pop(ce) *(is.dreg) = ce->c.st[ce->c.sp] + flaw(ce);
- * if (!ce->c.sp) ce->c.sp = STACK_SIZE - 1; else --ce->c.sp;
- * is.dreg = destination register, where value popped off stack will go
- * is.dmod = value by which to modulus destination register
- * is.dran = range within which to contain destination register
- */
- void pret(ce) /* pop ip from stack */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.dreg = &(ce->c.ip);
- is.dmod = SoupSize;
- is.iip = 0; is.dib = 1;
- }
-
- /* void movdd(ce) *(is.dreg) = is.sval + flaw(ce);
- * is.dreg = destination register, where moved value will be placed
- * is.sval = value to be placed in the dest reg
- * is.dmod = value by which to modulus destination register
- * is.dran = range within which to contain destination register
- */
- void pmovdc(ce) /* dx = cx */
- Pcells ce;
- { I32s treg;
-
- is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- treg = 3 + flaw(ce);
- is.dreg = &(ce->c.re[mo(treg, NUMREG)]);
- treg = 2 + flaw(ce);
- is.sval = ce->c.re[mo(treg, NUMREG)];
- is.iip = is.dib = 1;
- if (is.dreg == &(ce->c.re[0]) || is.dreg == &(ce->c.re[1]))
- is.dmod = SoupSize;
- else
- is.dran = SoupSize;
- }
-
- /* void movdd(ce) *(is.dreg) = is.sval + flaw(ce);
- * is.dreg = destination register, where moved value will be placed
- * is.sval = value to be placed in the dest reg
- * is.dmod = value by which to modulus destination register
- * is.dran = range within which to contain destination register
- */
- void pmovba(ce) /* bx = ax */
- Pcells ce;
- { I32s treg;
-
- is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- treg = 1 + flaw(ce);
- is.dreg = &(ce->c.re[mo(treg, NUMREG)]);
- treg = 0 + flaw(ce);
- is.sval = ce->c.re[mo(treg, NUMREG)];
- is.iip = is.dib = 1;
- if (is.dreg == &(ce->c.re[0]) || is.dreg == &(ce->c.re[1]))
- is.dmod = SoupSize;
- else
- is.dran = SoupSize;
- }
-
- /* void movii(ce) is.dins->inst = is.sins->inst;
- * is.dval = address of destination instruction
- * is.dins = pointer to destination instruction
- * is.sval = address of source instruction
- * is.sins = pointer to source instruction
- * is.dtra = track of destination instruction
- * is.sval2 = original value of destination instruction
- */
- void pmovii(ce)
- Pcells ce;
- { I32s tval;
-
- is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- tval = ce->c.re[0] + flaw(ce);
- is.dval = ad(tval);
- tval = ce->c.re[1] + flaw(ce);
- is.sval = ad(tval);
- #if PLOIDY == 1
- is.dins = &soup[is.dval];
- is.sins = &soup[is.sval];
- #else /* PLOIDY > 1 */
- is.dins = &soup[is.dval][ce->d.tr];
- is.sins = &soup[is.sval][ce->d.tr];
- #endif /* PLOIDY > 1 */
- is.sval2 = is.dins->inst;
- is.dtra = ce->d.tr;
- is.iip = is.dib = 1;
- #ifdef HSEX
- if (ce->d.x_over_addr)
- {
- if ((!ce->d.mov_daught) && (!FindMate(ce)))
- ce->d.x_over_addr = ce->d.mate_addr = 0;
- else UseMate(ce);
- }
- #endif
- }
-
- /* void adr(ce) find address of a template
- * is.mode = search mode: 1 = forward, 2 = backward, 0 = outward
- * is.mode2 = preference: 1 = forward, 2 = backward, and return for
- * direction found: 1 = forward, 2 = backward, 3 = both, 0 = none
- * is.dval = starting address for forward search
- * is.dval2 = starting address for backward search
- * is.dreg = destination register where target address will be stored
- * is.dreg2 = destination register where template size will be stored
- * is.dreg3 = destination register where offset of target will be stored
- * is.sval = return address if template size = 0
- * is.sval2 = template size, 0 = no template
- * is.sval3 = search limit, and return for distance actually searched
- * is.dmod = modulus value for is.dreg
- * is.dmod2 = modulus value for is.dreg2
- * is.dmod3 = modulus value for is.dreg3
- * is.dran = range to maintain for is.dreg
- * is.dran2 = range to maintain for is.dreg2
- * is.dran3 = range to maintain for is.dreg3
- */
- void padr(ce) /* search outward for template, return address in ax */
- Pcells ce; /* return template size in cx */
- { I32s a, s = 0;
-
- is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- a = ad(ce->c.ip + 1); /* a = address of start of template */
- while(1) /* find size of template, s = size */
- {
- #if PLOIDY == 1
- if(soup[ad(a + s)].inst != Nop0 &&
- soup[ad(a + s)].inst != Nop1)
- #else /* PLOIDY > 1 */
- if(soup[ad(a + s)][ce->d.tr].inst != Nop0 &&
- soup[ad(a + s)][ce->d.tr].inst != Nop1)
- #endif /* PLOIDY > 1 */
- break;
- s++;
- }
- is.dreg = &(ce->c.re[0]); /* destination register for address */
- is.dreg2 = &(ce->c.re[2]); /* destination register for template size */
- is.dreg3 = &BitBucket; /* throw away offset */
- is.sval2 = s; /* size of template */
- is.sval3 = Search_limit;
- is.dmod = SoupSize;
- is.dran2 = SoupSize;
- is.dval = ad(a + s + 1); /* start address for forward search */
- is.dval2 = ad(a - s - 1); /* start address for backward search */
- is.mode = 0; /* outward jump */
- is.mode2 = 1;
- is.iip = s + 1; is.dib = 1;
- if (!s)
- is.dreg = &BitBucket; /* dump return value if template size == 0 */
- }
-
- /* void adr(ce) find address of a template
- * is.mode = search mode: 1 = forward, 2 = backward, 0 = outward
- * is.mode2 = preference: 1 = forward, 2 = backward, and return for
- * direction found: 1 = forward, 2 = backward, 3 = both, 0 = none
- * is.dval = starting address for forward search
- * is.dval2 = starting address for backward search
- * is.dreg = destination register where target address will be stored
- * is.dreg2 = destination register where template size will be stored
- * is.dreg3 = destination register where offset of target will be stored
- * is.sval = return address if template size = 0
- * is.sval2 = template size, 0 = no template
- * is.sval3 = search limit, and return for distance actually searched
- * is.dmod = modulus value for is.dreg
- * is.dmod2 = modulus value for is.dreg2
- * is.dmod3 = modulus value for is.dreg3
- * is.dran = range to maintain for is.dreg
- * is.dran2 = range to maintain for is.dreg2
- * is.dran3 = range to maintain for is.dreg3
- */
- void padrb(ce) /* search backward for template, return address in ax */
- Pcells ce; /* return template size in cx */
- { I32s a, s = 0;
-
- is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- a = ad(ce->c.ip + 1); /* a = address of start of template */
- while(1) /* find size of template, s = size */
- {
- #if PLOIDY == 1
- if(soup[ad(a + s)].inst != Nop0 &&
- soup[ad(a + s)].inst != Nop1)
- #else /* PLOIDY > 1 */
- if(soup[ad(a + s)][ce->d.tr].inst != Nop0 &&
- soup[ad(a + s)][ce->d.tr].inst != Nop1)
- #endif /* PLOIDY > 1 */
- break;
- s++;
- }
- is.dreg = &(ce->c.re[0]); /* destination register for address */
- is.dreg2 = &(ce->c.re[2]); /* destination register for template size */
- is.dreg3 = &BitBucket; /* throw away offset */
- is.sval2 = s; /* size of template */
- is.sval3 = Search_limit;
- is.dmod = SoupSize;
- is.dran2 = SoupSize;
- is.dval = ad(a + s + 1); /* start address for forward search */
- is.dval2 = ad(a - s - 1); /* start address for backward search */
- is.mode = 2; /* backward jump */
- is.mode2 = 2;
- is.iip = s + 1; is.dib = 1;
- if (!s)
- is.dreg = &BitBucket; /* dump return value if template size == 0 */
- }
-
- /* void adr(ce) find address of a template
- * is.mode = search mode: 1 = forward, 2 = backward, 0 = outward
- * is.mode2 = preference: 1 = forward, 2 = backward, and return for
- * direction found: 1 = forward, 2 = backward, 3 = both, 0 = none
- * is.dval = starting address for forward search
- * is.dval2 = starting address for backward search
- * is.dreg = destination register where target address will be stored
- * is.dreg2 = destination register where template size will be stored
- * is.dreg3 = destination register where offset of target will be stored
- * is.sval = return address if template size = 0
- * is.sval2 = template size, 0 = no template
- * is.sval3 = search limit, and return for distance actually searched
- * is.dmod = modulus value for is.dreg
- * is.dmod2 = modulus value for is.dreg2
- * is.dmod3 = modulus value for is.dreg3
- * is.dran = range to maintain for is.dreg
- * is.dran2 = range to maintain for is.dreg2
- * is.dran3 = range to maintain for is.dreg3
- */
- void padrf(ce) /* search forward for template, return address in ax */
- Pcells ce; /* return template size in cx */
- { I32s a, s = 0;
-
- is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- a = ad(ce->c.ip + 1); /* a = address of start of template */
- while(1) /* find size of template, s = size */
- {
- #if PLOIDY == 1
- if(soup[ad(a + s)].inst != Nop0 &&
- soup[ad(a + s)].inst != Nop1)
- #else /* PLOIDY > 1 */
- if(soup[ad(a + s)][ce->d.tr].inst != Nop0 &&
- soup[ad(a + s)][ce->d.tr].inst != Nop1)
- #endif /* PLOIDY > 1 */
- break;
- s++;
- }
- is.dreg = &(ce->c.re[0]); /* destination register for address */
- is.dreg2 = &(ce->c.re[2]); /* destination register for template size */
- is.dreg3 = &BitBucket; /* throw away offset */
- is.sval2 = s; /* size of template */
- is.sval3 = Search_limit;
- is.dmod = SoupSize;
- is.dran2 = SoupSize;
- is.dval = ad(a + s + 1); /* start address for forward search */
- is.dval2 = ad(a - s - 1); /* start address for backward search */
- is.mode = 1; /* forward jump */
- is.mode2 = 1;
- is.iip = s + 1; is.dib = 1;
- if (!s)
- is.dreg = &BitBucket; /* dump return value if template size == 0 */
- }
-
- /* void malchm(ce) is.sval2 = mal(ce,&is.sval3,is.sval,is.mode2);
- * *(is.dreg) = is.sval3;
- * chmode(ce,is.sval3,is.sval2,is.mode);
- * is.dreg = destination register where allocated address is stored
- * is.sval = requested size of block for mal()
- * is.sval2 = flawed size of block
- * is.sval3 = suggested address, and allocated address
- * is.mode = memory protection mode (rwx), probably MemModeProt
- * is.mode2 = memory allocation mode for mal()
- */
- void pmal(ce) /* allocate space for a new cell */
- Pcells ce; /* allocate space for a new cell */
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.dreg = &(ce->c.re[0]);
- is.sval = ce->c.re[2];
- is.sval3 = -1;
- is.mode = MemModeProt; /* only write privelages works at the moment */
- is.mode2 = MalMode;
- }
-
- /* void divide(ce) cell division
- * is.sval = offset of IP into daughter's genome
- * is.sval2 = eject genome from soup = 0, 1 = leave in soup
- * is.mode = divide mode (3 steps)
- */
- void pdivide(ce) /* give life to new cell by puting in queue */
- Pcells ce;
- { is.iip = is.dib = 1;
- if (is.eins->exec)
- return ;
- is.mode = 2; /* full division */
- }
-
- #endif /* end of INST 1 */
-