RI5CY: User Manual v4.2-14.5.1 Vectorial ALU Operations table missing information

Created by: alfredoh1234

The Description for the Mnemonics is missing information to understand how the instructions operate. For example, the indexing variable "i" range and meaning are not defined; pv..sc. operand use is not clearly described; carry/borrow handling are not described; and the use of the "0xFFFF" mask is undefined in all cases. For example:

• pv.add.h is understood as:
  • rD[31-16] = rs1[31-16] + rs2[31-16]
  • rD[15-0] = rs1[15-0] + rs2[15-0]
• Is pv.add.sc.h understood as?
  • rD[31-16] = rs1[31-16] + Zext(rs2[15-0])
  • rD[15-0] = rs1[15-0] + Zext(rs2[15-0])
• Is pv.add.sci.h understood as?
  • rD[31-16] = rs1[31-16] + Zext(Imm6[5-0])
  • rD[15-0] = rs1[15-0] + Zext(Imm6[5-0])