Replace single release with release/net and release/reg.
This commit is contained in:
steve
parent
59bac26f4f
commit
26d97558c4
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@ -19,7 +19,7 @@
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CVS_IDENT
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#ident "$Id: codes.h,v 1.68 2004/12/15 17:17:42 steve Exp $"
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#ident "$Id: codes.h,v 1.69 2004/12/17 04:47:47 steve Exp $"
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#endif
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@ -97,7 +97,8 @@ extern bool of_NOR(vthread_t thr, vvp_code_t code);
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extern bool of_NORR(vthread_t thr, vvp_code_t code);
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extern bool of_OR(vthread_t thr, vvp_code_t code);
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extern bool of_ORR(vthread_t thr, vvp_code_t code);
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extern bool of_RELEASE(vthread_t thr, vvp_code_t code);
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extern bool of_RELEASE_NET(vthread_t thr, vvp_code_t code);
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extern bool of_RELEASE_REG(vthread_t thr, vvp_code_t code);
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extern bool of_SET_MEM(vthread_t thr, vvp_code_t code);
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extern bool of_SET_VEC(vthread_t thr, vvp_code_t code);
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extern bool of_SET_WORDR(vthread_t thr, vvp_code_t code);
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@ -168,6 +169,9 @@ extern vvp_code_t codespace_null(void);
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/*
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* $Log: codes.h,v $
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* Revision 1.69 2004/12/17 04:47:47 steve
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* Replace single release with release/net and release/reg.
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*
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* Revision 1.68 2004/12/15 17:17:42 steve
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* Add the force/v instruction.
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*
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@ -17,7 +17,7 @@
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CVS_IDENT
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#ident "$Id: compile.cc,v 1.177 2004/12/15 17:17:42 steve Exp $"
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#ident "$Id: compile.cc,v 1.178 2004/12/17 04:47:47 steve Exp $"
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#endif
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# include "arith.h"
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@ -143,7 +143,8 @@ const static struct opcode_table_s opcode_table[] = {
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{ "%nor/r", of_NORR, 3, {OA_BIT1, OA_BIT2, OA_NUMBER} },
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{ "%or", of_OR, 3, {OA_BIT1, OA_BIT2, OA_NUMBER} },
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{ "%or/r", of_ORR, 3, {OA_BIT1, OA_BIT2, OA_NUMBER} },
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{ "%release",of_RELEASE,1, {OA_FUNC_PTR, OA_NONE, OA_NONE} },
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{ "%release/net",of_RELEASE_NET,1,{OA_FUNC_PTR,OA_NONE,OA_NONE} },
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{ "%release/reg",of_RELEASE_REG,1,{OA_FUNC_PTR,OA_NONE,OA_NONE} },
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{ "%set/m", of_SET_MEM,2, {OA_MEM_PTR, OA_BIT1, OA_NONE} },
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{ "%set/v", of_SET_VEC,3, {OA_FUNC_PTR, OA_BIT1, OA_BIT2} },
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{ "%set/wr", of_SET_WORDR,2,{OA_VPI_PTR, OA_BIT1, OA_NONE} },
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@ -1562,6 +1563,9 @@ void compile_param_string(char*label, char*name, char*str, char*value)
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/*
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* $Log: compile.cc,v $
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* Revision 1.178 2004/12/17 04:47:47 steve
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* Replace single release with release/net and release/reg.
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*
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* Revision 1.177 2004/12/15 17:17:42 steve
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* Add the force/v instruction.
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*
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24
vvp/force.cc
24
vvp/force.cc
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@ -18,7 +18,7 @@
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CVS_IDENT
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#ident "$Id: force.cc,v 1.10 2004/12/15 17:17:42 steve Exp $"
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#ident "$Id: force.cc,v 1.11 2004/12/17 04:47:47 steve Exp $"
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#endif
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# include "codes.h"
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@ -97,25 +97,6 @@ static bool release_force(vvp_ipoint_t itgt, functor_t tgt)
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}
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/*
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* The %release instruction causes any force functors driving the
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* target functor to be released.
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*/
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bool of_RELEASE(vthread_t thr, vvp_code_t cp)
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{
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#if 0
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vvp_ipoint_t itgt = cp->iptr;
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functor_t tgt = functor_index(itgt);
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if (release_force(itgt, tgt))
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tgt->enable(itgt);
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#else
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fprintf(stderr, "XXXX forgot how to implement %%release\n");
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#endif
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return true;
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}
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/*
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** Variable functors receive %set or %assign-ed values at port[0].
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** Continuous assignments are connected to port[1].
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@ -171,6 +152,9 @@ bool var_functor_s::deassign(vvp_ipoint_t itgt)
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/*
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* $Log: force.cc,v $
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* Revision 1.11 2004/12/17 04:47:47 steve
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* Replace single release with release/net and release/reg.
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*
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* Revision 1.10 2004/12/15 17:17:42 steve
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* Add the force/v instruction.
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*
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@ -1,7 +1,7 @@
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/*
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* Copyright (c) 2001-2003 Stephen Williams (steve@icarus.com)
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*
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* $Id: opcodes.txt,v 1.57 2004/12/15 17:17:42 steve Exp $
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* $Id: opcodes.txt,v 1.58 2004/12/17 04:47:47 steve Exp $
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*/
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@ -481,21 +481,17 @@ and the <dst> is a writable scalar. The <dst> gets the value of the
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or of all the bits of the src vector.
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* %release <functor-label>
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* %release/net <functor-label>
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* %release/reg <functor-label>
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Release the force on the signal that is represented by the functor
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<functor-label>. The force was previously activated with a %force
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<functor-label>. The force was previously activated with a %force/v
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statement. If no force was active on this functor the statement does
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nothing. %release restores and propagates the normal value of the
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previously forced functor. In case of a forced Verilog register, the
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current value of the force expression should be %set to the .var
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functor before the force is released, to comply with Verilog release
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semantics. Like:
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%load <bit>, <functor-label> ; get the forced value
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%set <functor-label>, <bit> ; set the .var value
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%release <functor-label> ; remove the force
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nothing. The %release/net sends to the labeled functor the release
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command with net semantics: the unforced value is propagated to the
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output of the signal after the release is complete. The %release/reg
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sends the release command with reg semantics: the signal holds its
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forced value until another value propagates through.
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* %set/v <var-label>, <bit>, <wid>
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@ -17,7 +17,7 @@
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CVS_IDENT
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#ident "$Id: vthread.cc,v 1.124 2004/12/15 17:17:42 steve Exp $"
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#ident "$Id: vthread.cc,v 1.125 2004/12/17 04:47:47 steve Exp $"
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#endif
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# include "config.h"
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@ -2550,6 +2550,34 @@ bool of_NOR(vthread_t thr, vvp_code_t cp)
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return true;
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}
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/*
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* These implement the %release/net and %release/reg instructions. The
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* %release/net instruction applies to a net kind of functor by
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* sending the release/net command to the command port. (See vvp_net.h
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* for details.) The %release/reg instruction is the same, but sends
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* the release/reg command instead. These are very similar to the
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* %deassign instruction.
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*/
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bool of_RELEASE_NET(vthread_t thr, vvp_code_t cp)
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{
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vvp_net_t*net = cp->net;
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vvp_net_ptr_t ptr (net, 3);
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vvp_send_long(ptr, 2);
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return true;
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}
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bool of_RELEASE_REG(vthread_t thr, vvp_code_t cp)
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{
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vvp_net_t*net = cp->net;
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vvp_net_ptr_t ptr (net, 3);
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vvp_send_long(ptr, 3);
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return true;
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}
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static const unsigned char strong_values[4] = {St0, St1, StX, HiZ};
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bool of_SET_MEM(vthread_t thr, vvp_code_t cp)
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@ -3007,6 +3035,9 @@ bool of_JOIN_UFUNC(vthread_t thr, vvp_code_t cp)
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/*
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* $Log: vthread.cc,v $
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* Revision 1.125 2004/12/17 04:47:47 steve
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* Replace single release with release/net and release/reg.
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*
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* Revision 1.124 2004/12/15 17:17:42 steve
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* Add the force/v instruction.
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*
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