luke
/
iverilog
mirror of https://github.com/steveicarus/iverilog.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Update vvm_mult to nexus style.

This commit is contained in:
steve 2000-03-17 03:05:13 +00:00
parent 8cbf4f815e
commit 20712d3fcc
3 changed files with 56 additions and 36 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
t-vvm.cc
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: t-vvm.cc,v 1.111 2000/03/17 02:22:03 steve Exp $"
#ident "$Id: t-vvm.cc,v 1.112 2000/03/17 03:05:13 steve Exp $"
#endif
# include <iostream>
@ -1161,13 +1161,28 @@ void target_vvm::lpm_mult(ostream&os, const NetMult*mul)
"," << mul->width_a() << "," << mul->width_b() << "," <<
mul->width_s() << ");" << endl;
// Write the output functions for the multiplier device.
/* Connect the DataA inputs... */
for (unsigned idx = 0 ; idx < mul->width_a() ; idx += 1) {
string nexus = nexus_from_link(&mul->pin_DataA(idx));
init_code << " " << mangle(nexus) << "_nex.connect(&"
<< mname << ", " << mname << ".key_DataA("
<< idx << "));" << endl;
}
/* Connect the Datab inputs... */
for (unsigned idx = 0 ; idx < mul->width_b() ; idx += 1) {
string nexus = nexus_from_link(&mul->pin_DataB(idx));
init_code << " " << mangle(nexus) << "_nex.connect(&"
<< mname << ", " << mname << ".key_DataB("
<< idx << "));" << endl;
}
/* Connect the output pins... */
for (unsigned idx = 0 ; idx < mul->width_r() ; idx += 1) {
unsigned pin = mul->pin_Result(idx).get_pin();
string outfun = defn_gate_outputfun_(os, mul, pin);
init_code << " " << mangle(mul->name()) <<
".config_rout(" << idx << ", &" << outfun << ");" << endl;
emit_gate_outputfun_(mul, pin);
string nexus = nexus_from_link(&mul->pin_Result(idx));
init_code << " " << mangle(nexus) << "_nex.connect("
<< mname << ".config_rout(" << idx << "));" << endl;
}
}
@ -2181,6 +2196,9 @@ extern const struct target tgt_vvm = {
};
/*
* $Log: t-vvm.cc,v $
* Revision 1.112 2000/03/17 03:05:13 steve
* Update vvm_mult to nexus style.
*
* Revision 1.111 2000/03/17 02:22:03 steve
* vvm_clshift implementation without templates.
*

20
vvm/vvm_gates.h
View File

@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: vvm_gates.h,v 1.41 2000/03/17 02:22:03 steve Exp $"
#ident "$Id: vvm_gates.h,v 1.42 2000/03/17 03:05:13 steve Exp $"
#endif
# include "vvm.h"
@ -359,7 +359,7 @@ template <unsigned WIDTH> class vvm_ff {
* This class behaves like a combinational multiplier. The device
* behaves like the LPM_MULT device.
*/
class vvm_mult {
class vvm_mult : public vvm_nexus::recvr_t {
public:
explicit vvm_mult(unsigned rwid, unsigned awid,
@ -370,19 +370,20 @@ class vvm_mult {
void init_DataB(unsigned idx, vpip_bit_t val);
void init_Sum(unsigned idx, vpip_bit_t val);
void set_DataA(unsigned idx, vpip_bit_t val);
void set_DataB(unsigned idx, vpip_bit_t val);
void set_Sum(unsigned idx, vpip_bit_t val);
void config_rout(unsigned idx, vvm_out_event::action_t o);
vvm_nexus::drive_t* config_rout(unsigned idx);
unsigned key_DataA(unsigned idx) const;
unsigned key_DataB(unsigned idx) const;
unsigned key_Sum(unsigned idx) const;
private:
void take_value(unsigned key, vpip_bit_t val);
unsigned rwid_;
unsigned awid_;
unsigned bwid_;
unsigned swid_;
vpip_bit_t*bits_;
vvm_out_event::action_t*out_;
vvm_nexus::drive_t*out_;
};
/*
@ -926,6 +927,9 @@ template <unsigned WIDTH> class vvm_pevent : public vvm_nexus::recvr_t {
/*
* $Log: vvm_gates.h,v $
* Revision 1.42 2000/03/17 03:05:13 steve
* Update vvm_mult to nexus style.
*
* Revision 1.41 2000/03/17 02:22:03 steve
* vvm_clshift implementation without templates.
*

40
vvm/vvm_mult.cc
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: vvm_mult.cc,v 1.3 2000/03/04 01:13:54 steve Exp $"
#ident "$Id: vvm_mult.cc,v 1.4 2000/03/17 03:05:13 steve Exp $"
#endif
# include "vvm_gates.h"
@ -80,13 +80,10 @@ vvm_mult::vvm_mult(unsigned rwid, unsigned awid,
: rwid_(rwid), awid_(awid), bwid_(bwid), swid_(swid)
{
bits_ = new vpip_bit_t[rwid_+awid_+bwid_+swid_];
out_ = new vvm_out_event::action_t[rwid_];
out_ = new vvm_nexus::drive_t[rwid_];
for (unsigned idx = 0 ; idx < rwid_+awid_+bwid_+swid_ ; idx += 1)
bits_[idx] = Vx;
for (unsigned idx = 0 ; idx < rwid_ ; idx += 1)
out_[idx] = 0;
}
vvm_mult::~vvm_mult()
@ -95,11 +92,16 @@ vvm_mult::~vvm_mult()
delete[]out_;
}
void vvm_mult::config_rout(unsigned idx, vvm_out_event::action_t o)
vvm_nexus::drive_t* vvm_mult::config_rout(unsigned idx)
{
assert(o);
assert(idx < rwid_);
out_[idx] = o;
return out_+idx;
}
unsigned vvm_mult::key_DataA(unsigned idx) const
{
assert(idx < awid_);
return rwid_ + idx;
}
void vvm_mult::init_DataA(unsigned idx, vpip_bit_t val)
@ -108,15 +110,10 @@ void vvm_mult::init_DataA(unsigned idx, vpip_bit_t val)
bits_[rwid_+idx] = val;
}
void vvm_mult::set_DataA(unsigned idx, vpip_bit_t val)
unsigned vvm_mult::key_DataB(unsigned idx) const
{
assert(idx < awid_);
bits_[rwid_+idx] = val;
vvm_binop_mult(bits_, rwid_,
bits_+rwid_, awid_,
bits_+rwid_+awid_, bwid_);
for (unsigned idx = 0 ; idx < rwid_ ; idx += 1)
if (out_[idx]) (out_[idx])(bits_[idx]);
assert(idx < bwid_);
return rwid_+awid_+idx;
}
void vvm_mult::init_DataB(unsigned idx, vpip_bit_t val)
@ -125,20 +122,21 @@ void vvm_mult::init_DataB(unsigned idx, vpip_bit_t val)
bits_[rwid_+awid_+idx] = val;
}
void vvm_mult::set_DataB(unsigned idx, vpip_bit_t val)
void vvm_mult::take_value(unsigned key, vpip_bit_t val)
{
assert(idx < bwid_);
bits_[rwid_+awid_+idx] = val;
bits_[key] = val;
vvm_binop_mult(bits_, rwid_,
bits_+rwid_, awid_,
bits_+rwid_+awid_, bwid_);
for (unsigned idx = 0 ; idx < rwid_ ; idx += 1)
if (out_[idx]) (out_[idx])(bits_[idx]);
out_[idx].set_value(bits_[idx]);
}
/*
* $Log: vvm_mult.cc,v $
* Revision 1.4 2000/03/17 03:05:13 steve
* Update vvm_mult to nexus style.
*
* Revision 1.3 2000/03/04 01:13:54 steve
* Simpler implementation of multiplication.
*