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Store instruction checks #9

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opened 2 years ago by Jean-François Nguyen · 0 comments

Jean-François Nguyen commented 2 years ago

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Store instruction checks

Instructions

D-form:

• stb
• stbu
• sth
• sthu
• stw
• stwu

DS-form:

• std
• stdu

MLS:D-form:

• pstb
• psth
• pstw

8LS:D-form

• pstd

X-form:

• stbx
• stbux
• sthx
• sthux
• stwx
• stwux
• stdx
• stux

Invalid forms

Prefixed Store:

• (R == 1) and (RA != 0)

Store With Update:

• RA == 0

GPR access

RA (read)

• all if (RA != 0)

RA (write)

• 'u' suffix (With Update)

RB (read)

• X-form

RS (read)

• all

Store instruction checks ======================== Instructions ------------ D-form: - `stb` - `stbu` - `sth` - `sthu` - `stw` - `stwu` DS-form: - `std` - `stdu` MLS:D-form: - `pstb` - `psth` - `pstw` 8LS:D-form - `pstd` X-form: - `stbx` - `stbux` - `sthx` - `sthux` - `stwx` - `stwux` - `stdx` - `stux` Invalid forms ------------- Prefixed Store: - `(R == 1) and (RA != 0)` Store With Update: - `RA == 0` GPR access ---------- RA (read) - all if `(RA != 0)` RA (write) - 'u' suffix (With Update) RB (read) - X-form RS (read) - all

Jean-François Nguyen referenced this issue 2 years ago

Scalar Fixed-Point Compliancy Subset (SFS) #15

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Reference: cores/power-fv#9

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