qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] [PATCH v7 02/14] disas: nanoMIPS: Add graphical descrip


From: Aleksandar Markovic
Subject: Re: [Qemu-devel] [PATCH v7 02/14] disas: nanoMIPS: Add graphical description of pool organization
Date: Tue, 5 Mar 2019 12:39:12 +0000

> From: Philippe Mathieu-Daudé <address@hidden>
> Subject: Re: [Qemu-devel] [PATCH v7 02/14] disas: nanoMIPS: Add graphical 
> description of > pool organization
> 
> On 3/4/19 10:08 PM, Aleksandar Markovic wrote:
> > From: Aleksandar Markovic <address@hidden>
> >
> > Add graphical description of nanoMIPS instruction pool organization.
> >
> > Signed-off-by: Aleksandar Markovic <address@hidden>
> > ---
> >  disas/nanomips.cpp | 102 
> > +++++++++++++++++++++++++++++++++++++++++++++++++++++
> >  1 file changed, 102 insertions(+)
> >
> > diff --git a/disas/nanomips.cpp b/disas/nanomips.cpp
> > index 10f6d96..9b44208 100644
> > --- a/disas/nanomips.cpp
> > +++ b/disas/nanomips.cpp
> > @@ -16592,6 +16592,108 @@ std::string NMD::YIELD(uint64 instruction)
> >
> >
> >
> > +/*
> > + *                nanoMIPS instruction pool organization
> > + *                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > + *
> > + *
> > + *                 ┌─ P.ADDIU ─── P.RI ─── P.SYSCALL
> > + *                 │
> > + *                 │                                      ┌─ P.TRAP
> > + *                 │                                      │
> > + *                 │                      ┌─ _POOL32A0_0 ─┼─ P.CMOVE
> > + *                 │                      │               │
> > + *                 │                      │               └─ P.SLTU
> > + *                 │        ┌─ _POOL32A0 ─┤
> > + *                 │        │             │
> > + *                 │        │             │
> > + *                 │        │             └─ _POOL32A0_1 ─── CRC32
> > + *                 │        │
> > + *                 ├─ P32A ─┤
> > + *                 │        │                           ┌─ PP.LSX
> > + *                 │        │             ┌─ P.LSX ─────┤
> > + *                 │        │             │             └─ PP.LSXS
> > + *                 │        └─ _POOL32A7 ─┤
> > + *                 │                      │             ┌─ POOL32Axf_4
> > + *                 │                      └─ POOL32Axf ─┤
> > + *                 │                                    └─ POOL32Axf_5
> > + *                 │
> > + *                 ├─ PBAL
> > + *                 │
> > + *                 ├─ P.GP.W   ┌─ PP.LSX
> > + *         ┌─ P32 ─┤           │
> > + *         │       ├─ P.GP.BH ─┴─ PP.LSXS
> > + *         │       │
> > + *         │       ├─ P.J ─────── PP.BALRSC
> > + *         │       │
> > + *         │       ├─ P48I
> > + *         │       │           ┌─ P.SR
> > + *         │       │           │
> > + *         │       │           ├─ P.SHIFT
> > + *         │       │           │
> > + *         │       ├─ P.U12 ───┼─ P.ROTX
> > + *         │       │           │
> > + *         │       │           ├─ P.INS
> > + *         │       │           │
> > + *         │       │           └─ P.EXT
> > + *         │       │
> > + *         │       ├─ P.LS.U12 ── P.PREF.U12
> > + *         │       │
> > + *         │       ├─ P.BR1 ───── P.BR3A
> > + *         │       │
> > + *         │       │           ┌─ P.LS.S0 ─── P16.SYSCALL
> > + *         │       │           │
> > + *         │       │           │           ┌─ P.LL
> > + *         │       │           ├─ P.LS.S1 ─┤
> > + *         │       │           │           └─ P.SC
> > + *         │       │           │
> > + *         │       │           │           ┌─ P.PREFE
> > + *  MAJOR ─┤       ├─ P.LS.S9 ─┤           │
> > + *         │       │           ├─ P.LS.E0 ─┼─ P.LLE
> > + *         │       │           │           │
> > + *         │       │           │           └─ P.SCE
> > + *         │       │           │
> > + *         │       │           ├─ P.LS.WM
> > + *         │       │           │
> > + *         │       │           └─ P.LS.UAWM
> > + *         │       │
> > + *         │       │
> > + *         │       ├─ P.BR2
> > + *         │       │
> > + *         │       ├─ P.BRI
> > + *         │       │
> > + *         │       └─ P.LUI
> > + *         │
> > + *         │
> > + *         │       ┌─ P16.MV ──── P16.RI ─── P16.SYSCALL
> > + *         │       │
> > + *         │       ├─ P16.SR
> > + *         │       │
> > + *         │       ├─ P16.SHIFT
> > + *         │       │
> > + *         │       ├─ P16.4x4
> > + *         │       │
> > + *         │       ├─ P16C ────── POOL16C_0 ── POOL16C_00
> > + *         │       │
> > + *         └─ P16 ─┼─ P16.LB
> > + *                 │
> > + *                 ├─ P16.A1
> > + *                 │
> > + *                 ├─ P16.LH
> > + *                 │
> > + *                 ├─ P16.A2 ──── P.ADDIU[RS5]
> > + *                 │
> > + *                 ├─ P16.ADDU
> > + *                 │
> > + *                 └─ P16.BR ──┬─ P16.JRC
> > + *                             │
> > + *                             └─ P16.BR1
> 
> Nice ASCII tree! And you got it fits the 80 chars per line limit =)
> 

Too bad we don't have a mark "Enjoyed-by:" ;).

Yes, it does fit 80 characters limit. It was created manually. I stumbled
upon https://pythonhosted.org/asciitree/#ascii-trees the other day, but
never used it, you may find it useful.

By the way, there is a serious science on creating such trees in the most
compact or balanced way. See, for example, Reingold-Tilford algorithm
("Tidier Drawings of Trees", 1981).

Aleksandar

reply via email to

[Prev in Thread] Current Thread [Next in Thread]