fix hreset being disassembled as having second operand of "Nothing"

just report it having one operand...

1 files changed, 1 insertions, 0 deletions

diff --git a/src/real_mode/mod.rs b/src/real_mode/mod.rs
index 6765c1e..68ab6dd 100644
--- a/src/real_mode/mod.rs
+++ b/src/real_mode/mod.rs
@@ -8674,6 +8674,7 @@ fn read_operands<
             instruction.opcode = Opcode::HRESET;
             instruction.imm = read_num(words, 1)?;
             instruction.operands[0] = OperandSpec::ImmU8;
+            instruction.operand_count = 1;
         }
         OperandCase::G_mm_Ed => {
             instruction.regs[0].bank = RegisterBank::MM;