-Shape is 32-bits When SHAPE is set entirely to zeros, remapping is
+Shape is 32-bits. When SHAPE is set entirely to zeros, remapping is
disabled: the register's elements are a linear (1D) vector.
| 31..30 | 29..24 | 23..21 | 20..18 | 17..12 | 11..6 | 5..0 |
| -------- | ------ | ------- | ------- | ------- | -------- | ------- |
-| applydim |modulo | invxyz | permute | zdimsz | ydimsz | xdimsz |
+| applydim | offset | invxyz | permute | zdimsz | ydimsz | xdimsz |
-applydim will set to zero the dimensions less than this. applydim=0 applies all three. applydim=1 applies y and z. applydim=2 applys only z. applydim=3 is reserved.
+applydim will set to zero the dimensions less than this. applydim=0
+applies all three. applydim=1 applies y and z. applydim=2 applys only
+z. applydim=3 is reserved.
-invxyz will invert the start index of each of x, y or z. If invxyz[0] is zero then x-dimensional counting begins from 0 and increments, otherwise it begins from xdimsz-1 and iterates down to zero. Likewise for y and z.
+invxyz will invert the start index of each of x, y or z. If invxyz[0] is
+zero then x-dimensional counting begins from 0 and increments, otherwise
+it begins from xdimsz-1 and iterates down to zero. Likewise for y and z.
-modulo will cause the output to wrap and remain within the range 0 to modulo. The value zero disables modulus application. Note that modulo arithmetic is applied after all other remapping calculations.
+offset will have the effect equivalent to the sequential element loop
+to appear to run for offset (additional) iterations prior to actually
+generating output.
xdimsz, ydimsz and zdimsz are offset by 1, such that a value of 0 indicates
that the array dimensionality for that dimension is 1. A value of xdimsz=2
projects / libreriscv.git / blobdiff