yosys

Commit Graph

Author	SHA1	Message	Date
Catherine	a33acb7cd9	cxxrtl: refactor the formatter and use a closure. This commit achieves three roughly equally important goals: 1. To bring the rendering code in kernel/fmt.cc and in cxxrtl.h as close together as possible, with an ideal of only having the bigint library as the difference between the render functions. 2. To make the treatment of `$time` and `$realtime` in CXXRTL closer to the Verilog semantics, at least in the formatting code. 3. To change the code generator so that all of the `$print`-to-`string` conversion code is contained inside of a closure. There are two reasons to aim for goal (3): a. Because output redirection through definition of a global ostream object is neither convenient nor useful for environments where the output is consumed by other code rather than being printed on a terminal. b. Because it may be desirable to, in some cases, ignore the `$print` cells that are present in the netlist based on a runtime decision. This is doubly true for an upcoming `$check` cell implementing assertions, since failing a `$check` would by default cause a crash.	2024-01-16 16:35:51 +00:00
Charlotte	7f7c61c9f0	fmt: remove lzero by lowering during Verilog parse See https://github.com/YosysHQ/yosys/pull/3721#issuecomment-1502037466 -- this reduces logic within the cell, and makes the rules that apply much more clear.	2023-08-11 04:46:52 +02:00
Charlotte	c382d7d3ac	fmt: %t/$time support	2023-08-11 04:46:52 +02:00
Charlotte	b0f69f2cd5	tests: test cxxrtl against iverilog (and uncover bug!)	2023-08-11 04:46:52 +02:00
Charlotte	095b093f4a	cxxrtl: first pass of $print impl	2023-08-11 04:46:52 +02:00
whitequark	9ea241711e	kernel: add format string helpers, `fmt`.	2023-08-11 04:46:52 +02:00

6 Commits