Update `doc/opcode.md` for operand signs. [ci skip]
@@ -46,7 +46,7 @@ with `"`, either `OP_EXT1` or `OP_EXT2` or `OP_EXT2` can be prefixed.
| OP_LOADI_5' | B | R(a) = mrb_int(5) |
| OP_LOADI_6' | B | R(a) = mrb_int(6) |
| OP_LOADI_7' | B | R(a) = mrb_int(7) |
-| OP_LOADI_16' | BsS | R(a) = mrb_int(b) |
+| OP_LOADI16' | BsS | R(a) = mrb_int(b) |
| OP_LOADSYM" | BB | R(a) = Syms(b) |
| OP_LOADNIL' | B | R(a) = nil |
| OP_LOADSELF' | B | R(a) = self |
@@ -69,7 +69,7 @@ with `"`, either `OP_EXT1` or `OP_EXT2` or `OP_EXT2` can be prefixed.
| OP_JMP | S | pc=a |
| OP_JMPIF' | SB | if R(b) pc=a |
| OP_JMPNOT' | SB | if !R(b) pc=a |
-| OP_ONERR | sS | rescue_push(pc+a) |
+| OP_ONERR | S | rescue_push(pc+a) |
| OP_EXCEPT' | B | R(a) = exc |
| OP_RESCUE" | BB | R(b) = R(a).isa?(R(b)) |
| OP_POPERR | B | a.times{rescue_pop()} |
