| Basic |
Identifiers, escaped identifiers, Sized constants (b, o, d, h), Unsized constants (2’b11, 3’07, 32’d123, 8’hff), Signed constants (s) 3’bs101, module, endmodule, macromodule, ANSI-style module, task, and function port lists —— 标识符、转义标识符、大小常量 (b、o、d、h)、未大小常量 (2’b11、3’07、32’d123、8’hff)、有符号常量 (s) 3’bs101、module、endmodule、宏模块、ANSI 样式模块、任务和函数端口列表 |
system tasks, real constants |
| Data types |
wire, wand, wor, tri, triand, trior, supply0, supply1, trireg (treated as wire), reg, integer, parameter, input, output, inout, memory(reg [7:0] x [3:0] `;), N-dimensional arrays, |
real, time, event, tri0, tri1 |
| Module instances |
Connect port by name, order, Override parameter by order, Override parameter by name, Constants connected to ports, Unconnected ports, Expressions connected to ports, ——按名称、顺序连接端口、按顺序覆盖参数、按名称覆盖参数、连接到端口的常量、未连接的端口、连接到端口的表达式、 |
Delay on built-in gates 内置门延迟 |
| Generate statements |
if,case,for generate, concurrent begin end blocks, genvar, |
|
| Primitives |
and, or, nand, nor, xor, xnor,not, notif0, notif1, buf, bufif0, bufif1, tran, |
User defined primitives 用户定义的原语 (UDPs), table, pullup, pulldown, pmos, nmos, cmos, rpmos, rnmos, rcmos, tranif0, tranif1, rtran, rtranif0, rtranif1, |
| Operators and expressions |
+, - (binary and unary) |
|
| Bitwise operations |
&, |, ^, ~^, ^~ |
|
| Reduction operations |
&, |, ^, ~&, ~|, ~^, ^~, !, &&, || , ==, !=, <, <=, >, >=, <<, >>, <<< >>>, {}, {n{}}, ?:, function call |
=== , ! == |
| Event control |
event or, @ (partial), event or using comma syntax, posedge, negedge (partial), |
Event trigger (->), delay and wait (#) |
| Bit and part selects |
Bit select, Bit select of array element, Constant part select, Variable part select ( +:, -`:), Variable bit-select on left side of an assignment ——位选择、数组元素的位选择、常量部分选择、变量部分选择（+:、-:）、赋值左侧的变量位选择 |
|
| Continuous assignments |
net and wire declaration, assign |
Using delay |
| Procedural blocks |
always (exactly one @ required), |
initial |
| Procedural statements |
;, begin-end, if-else, repeat, case, casex, casez, default, for-while-forever-disable(partial), |
fork, join |
| Procedural assignments |
blocking (=), non-blocking (<=) |
force, release |
| Functions and tasks |
Functions, tasks |
|
| Compiler directives |
`define, `undef,`resetall, `ifndef, `elsif, `line, `ifdef, `else, `endif, `include |
|
