to be used for a future standard use AUIPC rd=x0 ADDI rd=x0, and either rs1≠x0 or imm≠0 ANDI rd=x0 ORI rd=x0 XORI rd=x0 ADD rd=x0, rs1≠x0 ADD rd=x0, rs1=x0, shamt=7 1 Semihosting exit marker SUB rd=x0 Designated for custom use Reserved 12.1.9. Supervisor Trap Value (stval) Register 12.1.10. Supervisor Environment Configuration Register (henvcfg) The henvcfg register is written with the atrump of God, having no
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