diff options
Diffstat (limited to 'include/opcode/nios2.h')
| -rw-r--r-- | include/opcode/nios2.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/include/opcode/nios2.h b/include/opcode/nios2.h index 3405f55..5f6cf6e 100644 --- a/include/opcode/nios2.h +++ b/include/opcode/nios2.h @@ -48,15 +48,16 @@ enum overflow_type The args field is a string describing the operands. The following letters can appear in the args: - c - a 5-bit control register index or break opcode + c - a 5-bit control register index d - a 5-bit destination register index s - a 5-bit left source register index t - a 5-bit right source register index i - a 16-bit signed immediate u - a 16-bit unsigned immediate + o - a 16-bit signed program counter relative offset j - a 5-bit unsigned immediate - k - a 6-bit unsigned immediate - l - an 8-bit unsigned immediate + b - a 5-bit break instruction constant + l - a 8-bit custom instruction constant m - a 26-bit unsigned immediate Literal ',', '(', and ')' characters may also appear in the args as delimiters. |