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Generate code for new form of memory ports.

This commit is contained in:
steve 2005-03-09 04:53:40 +00:00
parent 789c95b1c1
commit 53af2949b4
3 changed files with 65 additions and 24 deletions
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17
ivl_target.h
View File

@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: ivl_target.h,v 1.145 2005/03/05 05:47:42 steve Exp $"
#ident "$Id: ivl_target.h,v 1.146 2005/03/09 04:53:40 steve Exp $"
#endif
#ifdef __cplusplus
@ -837,6 +837,18 @@ extern const char* ivl_udp_name(ivl_udp_t net);
* are. All the data inputs have the same width, the width of the
* ivl_lpm_q output.
*
* - Memory port (IVL_LPM_RAM)
* These are structural ports into a memory device. They represent
* address/data ports of a memory device that the context can hook to
* for read or write. Read devices have an ivl_lpm_q output port that
* is the data being read.
*
* The ivl_lpm_memory function returns the ivl_memory_t for the memory
* that the port access. The ivl_lpm_width for the port then must
* match the ivl_memory_width of the memory device.
*
* Read or write, the ivl_lpm_select nexus is the address.
*
* - Reduction operators (IVL_LPM_RE_*)
* These devices have one input, a vector, and generate a single bit
* result. The width from the ivl_lpm_width is the width of the input
@ -1544,6 +1556,9 @@ _END_DECL
/*
* $Log: ivl_target.h,v $
* Revision 1.146 2005/03/09 04:53:40 steve
* Generate code for new form of memory ports.
*
* Revision 1.145 2005/03/05 05:47:42 steve
* Handle memory words in l-value concatenations.
*

37
tgt-stub/stub.c
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: stub.c,v 1.113 2005/03/05 05:47:42 steve Exp $"
#ident "$Id: stub.c,v 1.114 2005/03/09 04:53:40 steve Exp $"
#endif
# include "config.h"
@ -483,6 +483,34 @@ static void show_lpm_part(ivl_lpm_t net)
}
}
static void show_lpm_ram(ivl_lpm_t net)
{
ivl_nexus_t nex;
unsigned width = ivl_lpm_width(net);
ivl_memory_t mem = ivl_lpm_memory(net);
fprintf(out, " LPM_RAM: <width=%u>\n", width);
nex = ivl_lpm_q(net, 0);
fprintf(out, " Q: %s\n", ivl_nexus_name(nex));
nex = ivl_lpm_select(net, 0);
fprintf(out, " Address: %s\n", ivl_nexus_name(nex));
if (width_of_nexus(ivl_lpm_q(net,0)) != width) {
fprintf(out, " ERROR: Data width doesn't match nexus width=%u\n",
width_of_nexus(ivl_lpm_q(net,0)));
stub_errors += 1;
}
/* The width of the port must match the width of the memory
word. the compile assures that for us. */
if (width != ivl_memory_width(mem)) {
fprintf(out, " ERROR: Width doesn't match memory word width=%u\n",
ivl_memory_width(mem));
stub_errors += 1;
}
}
/*
* The reduction operators have similar characteristics and are
* displayed here.
@ -596,6 +624,10 @@ static void show_lpm(ivl_lpm_t net)
show_lpm_concat(net);
break;
case IVL_LPM_RAM:
show_lpm_ram(net);
break;
case IVL_LPM_RE_AND:
show_lpm_re(net);
break;
@ -1137,6 +1169,9 @@ int target_design(ivl_design_t des)
/*
* $Log: stub.c,v $
* Revision 1.114 2005/03/09 04:53:40 steve
* Generate code for new form of memory ports.
*
* Revision 1.113 2005/03/05 05:47:42 steve
* Handle memory words in l-value concatenations.
*

35
tgt-vvp/vvp_scope.c
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: vvp_scope.c,v 1.119 2005/02/13 01:15:07 steve Exp $"
#ident "$Id: vvp_scope.c,v 1.120 2005/03/09 04:53:40 steve Exp $"
#endif
# include "vvp_priv.h"
@ -1250,11 +1250,8 @@ static void draw_event_in_scope(ivl_event_t obj)
}
}
inline static void draw_lpm_ram(ivl_lpm_t net)
static void draw_lpm_ram(ivl_lpm_t net)
{
unsigned idx;
unsigned width = ivl_lpm_width(net);
unsigned awidth = ivl_lpm_selects(net);
ivl_memory_t mem = ivl_lpm_memory(net);
ivl_nexus_t clk = ivl_lpm_clk(net);
ivl_nexus_t pin;
@ -1265,31 +1262,22 @@ inline static void draw_lpm_ram(ivl_lpm_t net)
fprintf(vvp_out, ";\n");
}
fprintf(vvp_out, "L_%p .mem/port", net);
fprintf(vvp_out,
" M_%s, %d,0, %d,\n ",
vvp_memory_label(mem),
width-1,
awidth);
fprintf(vvp_out, "L_%p .mem/port M_%s, ", net, vvp_memory_label(mem));
for (idx = 0 ; idx < awidth ; idx += 1) {
pin = ivl_lpm_select(net, idx);
if (idx) fprintf(vvp_out, ", ");
draw_input_from_net(pin);
}
pin = ivl_lpm_select(net,0);
draw_input_from_net(pin);
if (clk) {
fprintf(vvp_out, ",\n CLK_%p, ", net);
fprintf(vvp_out, ", CLK_%p, ", net);
pin = ivl_lpm_enable(net);
if (pin)
draw_input_from_net(pin);
else
fprintf(vvp_out, "C<1>");
for (idx=0; idx<width; idx++) {
pin = ivl_lpm_data(net, idx);
fprintf(vvp_out, ", ");
draw_input_from_net(pin);
}
pin = ivl_lpm_data(net, 0);
fprintf(vvp_out, ", ");
draw_input_from_net(pin);
}
fprintf(vvp_out, ";\n");
@ -2029,6 +2017,9 @@ int draw_scope(ivl_scope_t net, ivl_scope_t parent)
/*
* $Log: vvp_scope.c,v $
* Revision 1.120 2005/03/09 04:53:40 steve
* Generate code for new form of memory ports.
*
* Revision 1.119 2005/02/13 01:15:07 steve
* Replace supply nets with wires connected to pullup/down supply devices.
*