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| author | Eddie Hung <eddie@fpgeh.com> | 2019-11-19 16:57:07 -0800 |
|---|---|---|
| committer | Eddie Hung <eddie@fpgeh.com> | 2019-11-19 16:57:07 -0800 |
| commit | 344619079d42e541fee8dc370318d9927cd6fb95 (patch) | |
| tree | 39cbfd8fca4608ad9f93ca75f698a0d8c991bd38 /techlibs/xilinx | |
| parent | 09ee96e8c22ec692ee3ee31b8c211646eabbcf27 (diff) | |
| download | yosys-344619079d42e541fee8dc370318d9927cd6fb95.tar.gz yosys-344619079d42e541fee8dc370318d9927cd6fb95.tar.bz2 yosys-344619079d42e541fee8dc370318d9927cd6fb95.zip | |
Do not drop async control signals in abc_map.v
Diffstat (limited to 'techlibs/xilinx')
| -rw-r--r-- | techlibs/xilinx/abc9_map.v | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/techlibs/xilinx/abc9_map.v b/techlibs/xilinx/abc9_map.v index 95546db37..fc224e832 100644 --- a/techlibs/xilinx/abc9_map.v +++ b/techlibs/xilinx/abc9_map.v @@ -120,10 +120,11 @@ module FDCE (output reg Q, input C, CE, D, CLR); .IS_D_INVERTED(IS_D_INVERTED), .IS_CLR_INVERTED(IS_CLR_INVERTED) ) _TECHMAP_REPLACE_ ( - .D(D), .Q($nextQ), .C(C), .CE(CE), .CLR(IS_CLR_INVERTED) + .D(D), .Q($nextQ), .C(C), .CE(CE), .CLR(CLR) // ^^^ Note that async - // control is disabled - // here but captured by + // control is not directly + // supported by abc9 but its + // behaviour is captured by // $__ABC9_ASYNC below ); \$__ABC9_FF_ abc_dff (.D($nextQ), .Q($abc9_currQ)); @@ -142,10 +143,11 @@ module FDCE_1 (output reg Q, input C, CE, D, CLR); FDCE_1 #( .INIT(INIT) ) _TECHMAP_REPLACE_ ( - .D(D), .Q($nextQ), .C(C), .CE(CE), .CLR(1'b0) + .D(D), .Q($nextQ), .C(C), .CE(CE), .CLR(CLR) // ^^^ Note that async - // control is disabled - // here but captured by + // control is not directly + // supported by abc9 but its + // behaviour is captured by // $__ABC9_ASYNC below ); \$__ABC9_FF_ abc_dff (.D($nextQ), .Q($abc9_currQ)); @@ -169,10 +171,11 @@ module FDPE (output reg Q, input C, CE, D, PRE); .IS_D_INVERTED(IS_D_INVERTED), .IS_PRE_INVERTED(IS_PRE_INVERTED), ) _TECHMAP_REPLACE_ ( - .D(D), .Q($nextQ), .C(C), .CE(CE), .PRE(IS_PRE_INVERTED) + .D(D), .Q($nextQ), .C(C), .CE(CE), .PRE(PRE) // ^^^ Note that async - // control is disabled - // here but captured by + // control is not directly + // supported by abc9 but its + // behaviour is captured by // $__ABC9_ASYNC below ); \$__ABC9_FF_ abc_dff (.D($nextQ), .Q($abc9_currQ)); @@ -189,10 +192,11 @@ module FDPE_1 (output reg Q, input C, CE, D, PRE); FDPE_1 #( .INIT(INIT) ) _TECHMAP_REPLACE_ ( - .D(D), .Q($nextQ), .C(C), .CE(CE), .PRE(1'b0) + .D(D), .Q($nextQ), .C(C), .CE(CE), .PRE(PRE) // ^^^ Note that async - // control is disabled - // here but captured by + // control is not directly + // supported by abc9 but its + // behaviour is captured by // $__ABC9_ASYNC below ); \$__ABC9_FF_ abc_dff (.D($nextQ), .Q($abc9_currQ)); |