+* [[sv/int_fp_mv]]
+* [[openpower/isa/av]] pseudocode
+* TODO review HP 1994-6 PA-RISC MAX <https://en.m.wikipedia.org/wiki/Multimedia_Acceleration_eXtensions>
+* <https://en.m.wikipedia.org/wiki/Sum_of_absolute_differences>
+* List of MMX instructions <https://cs.fit.edu/~mmahoney/cse3101/mmx.html>
+
+# Summary
+
+In-advance, the summary of base scalar operations that need to be added is:
+
+| instruction | pseudocode |
+| ------------ | ------------------------ |
+| average-add. | result = (src1 + src2 + 1) >> 1 |
+| abs-diff | result = abs (src1-src2) |
+| abs-accumulate| result += abs (src1-src2) |
+| (un)signed min| result = (src1 < src2) ? src1 : src2 use bitmanip |
+| (un)signed max| result = (src1 > src2) ? src1 : src2 use bitmanip |
+| bitwise sel | (a ? b : c) - use [[sv/bitmanip]] ternary |
+| int/fp move | covered by [[sv/int_fp_mv]] |
+
+Implemented at the [[openpower/isa/av]] pseudocode page.
+
+All other capabilities (saturate in particular) are achieved with [[sv/svp64]] modes and swizzle. Note that minmax and ternary are added in bitmanip.