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Add support for memory writes in processes.

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This commit is contained in:
Marcelina Kościelnicka 2021-02-23 00:21:46 +01:00
parent c00a29296c
commit 4e03865d5b
16 changed files with 246 additions and 44 deletions
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1
frontends/rtlil/rtlil_lexer.l
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@ -79,6 +79,7 @@ USING_YOSYS_NAMESPACE
"global" { return TOK_GLOBAL; }
"init" { return TOK_INIT; }
"update" { return TOK_UPDATE; }
"memwr" { return TOK_MEMWR; }
"process" { return TOK_PROCESS; }
"end" { return TOK_END; }

19
frontends/rtlil/rtlil_parser.y
View file

@ -69,7 +69,7 @@ USING_YOSYS_NAMESPACE
%token TOK_AUTOIDX TOK_MODULE TOK_WIRE TOK_WIDTH TOK_INPUT TOK_OUTPUT TOK_INOUT
%token TOK_CELL TOK_CONNECT TOK_SWITCH TOK_CASE TOK_ASSIGN TOK_SYNC
%token TOK_LOW TOK_HIGH TOK_POSEDGE TOK_NEGEDGE TOK_EDGE TOK_ALWAYS TOK_GLOBAL TOK_INIT
%token TOK_UPDATE TOK_PROCESS TOK_END TOK_INVALID TOK_EOL TOK_OFFSET
%token TOK_UPDATE TOK_MEMWR TOK_PROCESS TOK_END TOK_INVALID TOK_EOL TOK_OFFSET
%token TOK_PARAMETER TOK_ATTRIBUTE TOK_MEMORY TOK_SIZE TOK_SIGNED TOK_REAL TOK_UPTO
%type <rsigspec> sigspec_list_reversed
@ -155,6 +155,7 @@ param_defval_stmt:
TOK_PARAMETER TOK_ID constant EOL {
current_module->avail_parameters($2);
current_module->parameter_default_values[$2] = *$3;
delete $3;
free($2);
};
@ -389,6 +390,22 @@ update_list:
delete $3;
delete $4;
} |
update_list attr_list TOK_MEMWR TOK_ID sigspec sigspec sigspec constant EOL {
RTLIL::MemWriteAction act;
act.attributes = attrbuf;
act.memid = $4;
act.address = *$5;
act.data = *$6;
act.enable = *$7;
act.priority_mask = *$8;
current_process->syncs.back()->mem_write_actions.push_back(std::move(act));
attrbuf.clear();
free($4);
delete $5;
delete $6;
delete $7;
delete $8;
} |
/* empty */;
constant: