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| author | Clifford Wolf <clifford@clifford.at> | 2014-06-21 16:33:33 +0200 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2014-06-21 16:33:33 +0200 |
| commit | b18fa95d2f1f4118cdb7c16e3415059bd81e2325 (patch) | |
| tree | 68ba5ef340312a0d5f3a63108dddf034e8e6dba6 /manual/PRESENTATION_ExSyn | |
| parent | 1c85584fe5843a43590de3927fe9bde74a04e72e (diff) | |
| download | yosys-b18fa95d2f1f4118cdb7c16e3415059bd81e2325.tar.gz yosys-b18fa95d2f1f4118cdb7c16e3415059bd81e2325.tar.bz2 yosys-b18fa95d2f1f4118cdb7c16e3415059bd81e2325.zip | |
Progress in presentation
Diffstat (limited to 'manual/PRESENTATION_ExSyn')
| -rw-r--r-- | manual/PRESENTATION_ExSyn/Makefile | 2 | ||||
| -rw-r--r-- | manual/PRESENTATION_ExSyn/techmap_01_map.v | 6 |
2 files changed, 4 insertions, 4 deletions
diff --git a/manual/PRESENTATION_ExSyn/Makefile b/manual/PRESENTATION_ExSyn/Makefile index bcff48aad..c34eae3ff 100644 --- a/manual/PRESENTATION_ExSyn/Makefile +++ b/manual/PRESENTATION_ExSyn/Makefile @@ -8,7 +8,7 @@ TARGETS += abc_01 all: $(addsuffix .pdf,$(TARGETS)) define make_pdf_template -$(1).pdf: $(1).v $(1).ys +$(1).pdf: $(1)*.v $(1)*.ys ../../yosys -p 'script $(1).ys; show -notitle -prefix $(1) -format pdf' endef diff --git a/manual/PRESENTATION_ExSyn/techmap_01_map.v b/manual/PRESENTATION_ExSyn/techmap_01_map.v index 64c0b87c5..4fd86e854 100644 --- a/manual/PRESENTATION_ExSyn/techmap_01_map.v +++ b/manual/PRESENTATION_ExSyn/techmap_01_map.v @@ -13,9 +13,9 @@ output [Y_WIDTH-1:0] Y; generate if ((A_WIDTH == 32) && (B_WIDTH == 32)) begin - wire [15:0] CARRY = |{A[15:0], B[15:0]} && ~|Y[15:0]; - assign Y[15:0] = A[15:0] + B[15:0]; - assign Y[31:16] = A[31:16] + B[31:16] + CARRY; + wire [16:0] S1 = A[15:0] + B[15:0]; + wire [15:0] S2 = A[31:16] + B[31:16] + S1[16]; + assign Y = {S2[15:0], S1[15:0]}; end else wire _TECHMAP_FAIL_ = 1; |