The purpose of the Register table is to mark which registers change behaviour
if used in a "Standard" (normally scalar) opcode.
-16 bit format:
-
-| RegCAM | 15 | (14..8) | 7 | (6..5) | (4..0) |
-| ------ | - | - | - | ------ | ------- |
-| 0 | isvec0 | regidx0 | i/f | vew0 | regkey |
-| 1 | isvec1 | regidx1 | i/f | vew1 | regkey |
-| 2 | isvec2 | regidx2 | i/f | vew2 | regkey |
-| 3 | isvec3 | regidx3 | i/f | vew3 | regkey |
-
-8 bit format:
-
-| RegCAM | | 7 | (6..5) | (4..0) |
-| ------ | | - | ------ | ------- |
-| 0 | | i/f | vew0 | regnum |
-
-Mapping the 8-bit to 16-bit format:
-
-| RegCAM | 15 | (14..8) | 7 | (6..5) | (4..0) |
-| ------ | - | - | - | ------ | ------- |
-| 0 | isvec=1 | regnum0<<2 | i/f | vew0 | regnum0 |
-| 1 | isvec=1 | regnum1<<2 | i/f | vew1 | regnum1 |
-| 2 | isvec=1 | regnum2<<2 | i/f | vew2 | regnum2 |
-| 3 | isvec=1 | regnum2<<2 | i/f | vew3 | regnum3 |
+[[!inline raw="yes" pages="simple_v_extension/reg_table_format" ]]
Fields:
--- /dev/null
+16 bit format:
+
+| RegCAM | | 15 | (14..8) | 7 | (6..5) | (4..0) |
+| ------ | | - | - | - | ------ | ------- |
+| 0 | | isvec0 | regidx0 | i/f | vew0 | regkey |
+| 1 | | isvec1 | regidx1 | i/f | vew1 | regkey |
+| .. | | isvec.. | regidx.. | i/f | vew.. | regkey |
+| 15 | | isvec15 | regidx15 | i/f | vew15 | regkey |
+
+8 bit format:
+
+| RegCAM | | 7 | (6..5) | (4..0) |
+| ------ | | - | ------ | ------- |
+| 0 | | i/f | vew0 | regnum |
+
+Showing the mapping (relationship) between 8-bit and 16-bit format:
+
+| RegCAM | 15 | (14..8) | 7 | (6..5) | (4..0) |
+| ------ | - | - | - | ------ | ------- |
+| 0 | isvec=1 | regnum0<<2 | i/f | vew0 | regnum0 |
+| 1 | isvec=1 | regnum1<<2 | i/f | vew1 | regnum1 |
+| 2 | isvec=1 | regnum2<<2 | i/f | vew2 | regnum2 |
+| 3 | isvec=1 | regnum2<<2 | i/f | vew3 | regnum3 |
+
powerful and has many more opportunities to reduce code size that in
Standard RV32/RV64 executables.
-16 bit format:
-
-| RegCAM | | 15 | (14..8) | 7 | (6..5) | (4..0) |
-| ------ | | - | - | - | ------ | ------- |
-| 0 | | isvec0 | regidx0 | i/f | vew0 | regkey |
-| 1 | | isvec1 | regidx1 | i/f | vew1 | regkey |
-| .. | | isvec.. | regidx.. | i/f | vew.. | regkey |
-| 15 | | isvec15 | regidx15 | i/f | vew15 | regkey |
-
-8 bit format:
-
-| RegCAM | | 7 | (6..5) | (4..0) |
-| ------ | | - | ------ | ------- |
-| 0 | | i/f | vew0 | regnum |
-
-Showing the mapping (relationship) between 8-bit and 16-bit format:
-
-| RegCAM | 15 | (14..8) | 7 | (6..5) | (4..0) |
-| ------ | - | - | - | ------ | ------- |
-| 0 | isvec=1 | regnum0<<2 | i/f | vew0 | regnum0 |
-| 1 | isvec=1 | regnum1<<2 | i/f | vew1 | regnum1 |
-| 2 | isvec=1 | regnum2<<2 | i/f | vew2 | regnum2 |
-| 3 | isvec=1 | regnum2<<2 | i/f | vew3 | regnum3 |
+[[!inline raw="yes" pages="simple_v_extension/reg_table_format" ]]
i/f is set to "1" to indicate that the redirection/tag entry is to
be applied to integer registers; 0 indicates that it is relevant to