register file: one register file with pins on vertical side, other on…

… horizontal Improve layout. Signed-off-by: Øyvind Harboe <[email protected]>
The-OpenROAD-Project · Jul 28, 2024 · 277b7fc · 277b7fc
1 parent 2f3f796
commit 277b7fc
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diff --git a/BUILD.bazel b/BUILD.bazel
@@ -19,6 +19,15 @@ filegroup(
     visibility = [":__subpackages__"],
 )
 
+filegroup(
+    name = "io-sram-bottom",
+    srcs = [
+        "io-sram-bottom.tcl",
+        ":util",
+    ],
+    visibility = [":__subpackages__"],
+)
+
 filegroup(
     name = "io-boomtile",
     srcs = [
@@ -772,7 +781,7 @@ boom_regfile_rams = [
 [build_openroad(
         docker_image = orfs_version,
         name = ram,
-        io_constraints=":io-sram",
+        io_constraints={'regfile_128x64':":io-sram-bottom", }.get(ram, ":io-sram"),
         verilog_files=["mock/" + ram + ".sv"],
         sdc_constraints = ":constraints-sram",
         stage_args={

diff --git a/io-sram-bottom.tcl b/io-sram-bottom.tcl
@@ -0,0 +1,3 @@
+source util.tcl
+
+set_io_pin_constraint -region bottom:* -pin_names [match_pins {(R|W)[0-9]+_.*}]
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,3 @@
		source util.tcl

		set_io_pin_constraint -region bottom:* -pin_names [match_pins {(R\|W)[0-9]+_.*}]