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iverilog
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Give buffers support for simple delays.

This commit is contained in:
steve 2005-05-13 05:13:12 +00:00
parent adbe734b6c
commit c701fb615b
2 changed files with 33 additions and 10 deletions
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31
vvp/logic.cc
View File

@ -17,13 +17,14 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: logic.cc,v 1.21 2005/04/13 06:34:20 steve Exp $"
#ident "$Id: logic.cc,v 1.22 2005/05/13 05:13:12 steve Exp $"
#endif
# include "logic.h"
# include "compile.h"
# include "bufif.h"
# include "npmos.h"
# include "schedule.h"
# include "statistics.h"
# include <string.h>
# include <assert.h>
@ -109,7 +110,8 @@ void vvp_fun_and::recv_vec4(vvp_net_ptr_t ptr, vvp_vector4_t bit)
vvp_send_vec4(ptr.ptr()->out, result);
}
vvp_fun_buf::vvp_fun_buf()
vvp_fun_buf::vvp_fun_buf(vvp_time64_t del)
: delay_(del)
{
count_functors_table += 1;
}
@ -128,10 +130,14 @@ void vvp_fun_buf::recv_vec4(vvp_net_ptr_t ptr, vvp_vector4_t bit)
bit.set_bit(idx, BIT4_X);
}
vvp_send_vec4(ptr.ptr()->out, bit);
if (delay_ > 0)
schedule_assign_vector(ptr.ptr()->out, bit, delay_);
else
vvp_send_vec4(ptr.ptr()->out, bit);
}
vvp_fun_bufz::vvp_fun_bufz()
vvp_fun_bufz::vvp_fun_bufz(vvp_time64_t del)
: delay_(del)
{
count_functors_table += 1;
}
@ -145,7 +151,10 @@ void vvp_fun_bufz::recv_vec4(vvp_net_ptr_t ptr, vvp_vector4_t bit)
if (ptr.port() != 0)
return;
vvp_send_vec4(ptr.ptr()->out, bit);
if (delay_ > 0)
schedule_assign_vector(ptr.ptr()->out, bit, delay_);
else
vvp_send_vec4(ptr.ptr()->out, bit);
}
vvp_fun_muxz::vvp_fun_muxz()
@ -231,6 +240,8 @@ void compile_functor(char*label, char*type,
vvp_net_fun_t* obj = 0;
bool strength_aware = false;
vvp_time64_t delay64 = delay? delay->get_delay(BIT4_0,BIT4_1) : 0;
if (strcmp(type, "OR") == 0) {
obj = new table_functor_s(ft_OR);
@ -238,7 +249,7 @@ void compile_functor(char*label, char*type,
obj = new vvp_fun_and();
} else if (strcmp(type, "BUF") == 0) {
obj = new vvp_fun_buf();
obj = new vvp_fun_buf(delay64);
} else if (strcmp(type, "BUFIF0") == 0) {
obj = new vvp_fun_bufif(true,false, ostr0, ostr1);
@ -249,7 +260,7 @@ void compile_functor(char*label, char*type,
strength_aware = true;
} else if (strcmp(type, "BUFZ") == 0) {
obj = new vvp_fun_bufz();
obj = new vvp_fun_bufz(delay64);
#if 0
} else if (strcmp(type, "PMOS") == 0) {
obj = new vvp_pmos_s;
@ -327,6 +338,9 @@ void compile_functor(char*label, char*type,
/* Point the gate to the drive node. */
net->out = vvp_net_ptr_t(net_drv, 0);
if (delay)
delete delay;
define_functor_symbol(label, net_drv);
free(label);
}
@ -334,6 +348,9 @@ void compile_functor(char*label, char*type,
/*
* $Log: logic.cc,v $
* Revision 1.22 2005/05/13 05:13:12 steve
* Give buffers support for simple delays.
*
* Revision 1.21 2005/04/13 06:34:20 steve
* Add vvp driver functor for logic outputs,
* Add ostream output operators for debugging.

12
vvp/logic.h
View File

@ -19,10 +19,11 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: logic.h,v 1.14 2005/04/13 06:34:20 steve Exp $"
#ident "$Id: logic.h,v 1.15 2005/05/13 05:13:12 steve Exp $"
#endif
# include "vvp_net.h"
# include "delay.h"
# include <stddef.h>
/*
@ -71,12 +72,13 @@ class vvp_fun_and : public vvp_fun_boolean_ {
class vvp_fun_buf: public vvp_net_fun_t {
public:
explicit vvp_fun_buf();
explicit vvp_fun_buf(vvp_time64_t del);
virtual ~vvp_fun_buf();
void recv_vec4(vvp_net_ptr_t p, vvp_vector4_t bit);
private:
vvp_time64_t delay_;
};
/*
@ -86,12 +88,13 @@ class vvp_fun_buf: public vvp_net_fun_t {
class vvp_fun_bufz: public vvp_net_fun_t {
public:
explicit vvp_fun_bufz();
explicit vvp_fun_bufz(vvp_time64_t delay);
virtual ~vvp_fun_bufz();
void recv_vec4(vvp_net_ptr_t p, vvp_vector4_t bit);
private:
vvp_time64_t delay_;
};
/*
@ -137,6 +140,9 @@ extern const unsigned char ft_var[];
/*
* $Log: logic.h,v $
* Revision 1.15 2005/05/13 05:13:12 steve
* Give buffers support for simple delays.
*
* Revision 1.14 2005/04/13 06:34:20 steve
* Add vvp driver functor for logic outputs,
* Add ostream output operators for debugging.