NCVerilog设计秘诀与点评

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This approach allows completely transparent mixed language, mixed-level, and mixed cycle-event simulations. It also lays the foundation for mixed signal simulations. ' y+ l3 s- ?   E, q
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2.External Interface:
0 o8 q- I, I2 F4 X* Y(1) VHDL: VHPI,OMI
$ o% N5 c0 Q3 U3 }. [( Q(2) Verilog: PLI, VPI, OMI% F9 z9 W1 G( J( [$ y
（Modelsim和VCS也有这个功能）
* q- K- l2 k+ K* D   {. C# t（PLI用的比较多，仿真器一般自带常用的PLI。） 8 s: s: o: u' _. a( y3 k( Z$ y
（如果需要添加 FSDB支持，需要将debussy提供的libpli.dll和libpli.lib拷贝到tools/lib下面）   _/ Z   {; m   X9 X+ ]; t   E7 Y

: H0 o! {3 ?. e! ~4 Y, { 3. After elaboration, Single executable code stream, Affirma NC Simulator; ) P# J) n. h% [" D

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' q7 Y3 `3 L5 e* k, i9 /' vCode Coverage ???
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- E) S* C* W) F4 k7 Y& _5. Verilog supported: $ e: Y1 k( @: f1 h/ j
(1) OVI 2.0; 3 `8 t0 [- N0 i- o
(2) IEEE 1364;
8 N% _( I, j9 n, [(3) Verilog-XL implementation;
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" g5 k0 D% A* }3 h- S; q6. NC-Verilog use: Library.Cell:View 0 [" {/ k" r, Z/ _4 }
cds.lib: This file contains statements that define your libraries and that map logical library names to physical directory paths. 7 S   f8 ~# `$ n8 L# h4 j% O+ W
hdl.var:This file defines which library is the work library. ( c3 i7 y6 e/ Y# T, F* q

$ @0 l( X& h- [7. You can write a setup.loc file to change the directories to search or to change the order of precedence to use when searching for the cds.lib and hdl.var files. & T& R$ o6 ]5 ?1 O+ f, [2 a

) j# u/ /" z, i( C8 B8. （仿真器的“构成-步骤”：ncvlog-parse，ncelab-elaborate，ncsim-simulate）. {6 n/ o( s% [% u0 w" Q   S& Y
Single-step invocation: ncverilog : a parser called ncvlog; an elaborator called ncelab to build the model, and then invokes the ncsim simulator to simulate the model.
# A9 r/ v5 B6 ~8 JMulti-step invocation: invoke ncvlog, ncelab, and ncsim separately.
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The cell binding mechanism is the major difference between the two invocation methods.
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) U) o6 b6 g   I8 V9.ncpack:change the properties of a database to make it read-only or add-only. . E0 l& n1 q2 h) /; p" y3 `9 Y
inca.architecture.lib_version.pak
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* [- T+ i4 p8 _! Oncls utility: list the objects contained in the library system,
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' `& c5 b. s4 ]+ j* o, s10. Library files protect:
. g9 w+ f6 ^9 u   V, L5 j( { (1) file locking mechanism: ncpack -unlock, to unlock a file
* _* Z1 D$ q9 o7 t' q* o(2) signal handling mechanism ensures that any unexpected event, 0 _! X8 i. A( g! F
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11. cdsdoc:
3 }- X, F5 }) k+ p8 Y% ]% bTo invoke the Cadence documentation window 3 a+ e1 M) k3 ?* j# x: L) M% J
tool_name -help
$ H' n& K( ~   e( h( _/ B( cnchelp [options] tool_name message_code ******* ; o' Q' y. D2 q# H   p6 M0 d" h
ncsim> help [help_options] [command | all [command_options]]
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NCLaunch is a graphical user interface
( Q% R6 /& v9 t0 c) Enclaunch 3 e$ Q+ J: l3 S; c. O6 F( V
SimVision Waveform Viewer,
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