Added %D and %c select commands

diff --git a/passes/cmds/select.cc b/passes/cmds/select.cc
index 59f936b01396525b70e24d4bcab76feeee8770fd..38d43f8dfd4cd0c1817a2c6baa365688990e7e47 100644 (file)
--- a/passes/cmds/select.cc
+++ b/passes/cmds/select.cc
@@ -595,6 +595,13 @@ static void select_stmt(RTLIL::Design *design, std::string arg)
                        select_op_diff(design, work_stack[work_stack.size()-2], work_stack[work_stack.size()-1]);
                        work_stack.pop_back();
                } else
+               if (arg == "%D") {
+                       if (work_stack.size() < 2)
+                               log_cmd_error("Must have at least two elements on the stack for operator %%d.\n");
+                       select_op_diff(design, work_stack[work_stack.size()-1], work_stack[work_stack.size()-2]);
+                       work_stack[work_stack.size()-2] = work_stack[work_stack.size()-1];
+                       work_stack.pop_back();
+               } else
                if (arg == "%i") {
                        if (work_stack.size() < 2)
                                log_cmd_error("Must have at least two elements on the stack for operator %%i.\n");
@@ -606,14 +613,19 @@ static void select_stmt(RTLIL::Design *design, std::string arg)
                                log_cmd_error("Must have at least one element on the stack for operator %%s.\n");
                        select_op_submod(design, work_stack[work_stack.size()-1]);
                } else
+               if (arg == "%c") {
+                       if (work_stack.size() < 1)
+                               log_cmd_error("Must have at least one element on the stack for operator %%c.\n");
+                       work_stack.push_back(work_stack.back());
+               } else
                if (arg == "%m") {
                        if (work_stack.size() < 1)
-                               log_cmd_error("Must have at least one element on the stack for operator %%s.\n");
+                               log_cmd_error("Must have at least one element on the stack for operator %%m.\n");
                        select_op_fullmod(design, work_stack[work_stack.size()-1]);
                } else
                if (arg == "%a") {
                        if (work_stack.size() < 1)
-                               log_cmd_error("Must have at least one element on the stack for operator %%s.\n");
+                               log_cmd_error("Must have at least one element on the stack for operator %%a.\n");
                        select_op_alias(design, work_stack[work_stack.size()-1]);
                } else
                if (arg == "%x" || (arg.size() > 2 && arg.substr(0, 2) == "%x" && (arg[2] == ':' || arg[2] == '*' || arg[2] == '.' || ('0' <= arg[2] && arg[2] <= '9')))) {
@@ -958,6 +970,12 @@ struct SelectPass : public Pass {
                log("    %%d\n");
                log("        pop the top set from the stack and subtract it from the new top\n");
                log("\n");
+               log("    %%D\n");
+               log("        like %%d but swap the roles of two top sets on the stack\n");
+               log("\n");
+               log("    %%c\n");
+               log("        create a copy of the top set rom the stack and push it\n");
+               log("\n");
                log("    %%x[<num1>|*][.<num2>][:<rule>[:<rule>..]]\n");
                log("        expand top set <num1> num times according to the specified rules.\n");
                log("        (i.e. select all cells connected to selected wires and select all\n");