diff options
Diffstat (limited to 'gas/config')
| -rw-r--r-- | gas/config/tc-i386.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index 079e9d8..daa0ddb 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -3436,10 +3436,13 @@ build_modrm_byte () source = 0; break; case 3: - /* When there are 3 operands, one of them must be immediate, - which may be the first or the last operand. */ - assert (i.imm_operands == 1); - source = (i.types[0] & Imm) ? 1 : 0; + /* When there are 3 operands, one of them may be immediate, + which may be the first or the last operand. Otherwise, + the first operand must be shift count register (cl). */ + assert (i.imm_operands == 1 + || (i.imm_operands == 0 + && (i.types[0] & ShiftCount))); + source = (i.types[0] & (Imm | ShiftCount)) ? 1 : 0; break; case 4: /* When there are 4 operands, the first two must be immediate |