1 files changed, 40 insertions, 0 deletions
diff --git a/techlibs/ice40/brams.txt b/techlibs/ice40/brams.txt
new file mode 100644
index 000000000..5d23ad16b
--- /dev/null
+++ b/techlibs/ice40/brams.txt
@@ -0,0 +1,40 @@
+bram $__ICE40_RAM4K_M0
+  init 0
+  abits 8
+  dbits 16
+  groups 2
+  ports  1  1
+  wrmode 0  1
+  enable 0 16
+  transp 0  0
+  clocks 2  3
+  clkpol 2  3
+endbram
+
+bram $__ICE40_RAM4K_M123
+  init 0
+  abits  9 @M1
+  dbits  8 @M1
+  abits 10 @M2
+  dbits  4 @M2
+  abits 11 @M3
+  dbits  2 @M3
+  groups 2
+  ports  1 1
+  wrmode 0 1
+  enable 0 1
+  transp 0 0
+  clocks 2 3
+  clkpol 2 3
+endbram
+
+match $__ICE40_RAM4K_M0
+  min efficiency 10
+  make_transp
+  or_next_if_better
+endmatch
+
+match $__ICE40_RAM4K_M123
+  min efficiency 10
+  make_transp
+endmatch