68000 Assembly/Conditional Tests
Wherever you see "cc" in an instruction, you should replace it with the appropriate conditional test code. Refer to this table for what each test does.
| Code | Description | Test |
|---|---|---|
| T* | True, always tests true. Not available for Bcc or Jcc. | 1 |
| F | False, always tests false. Not available for Bcc or Jcc. | 0 |
| HI | High. True if Carry and Zero are both clear. | not C and not Z |
| LS | Low or same. True if either Carry or Zero are set. | C or Z |
| CC | Carry Clear. True if Carry is clear. | not C |
| CS | Carry Set. True if Carry is set. | C |
| NE | Not Equal. True if Zero flag is clear. | not Z |
| EQ | Equal. True if Zero flag is set. | Z |
| VC | Overflow Clear. True if Overflow is clear. | not V |
| VS | Overflow set. True if Overflow is set. | V |
| PL | Plus. True if Negative is clear. | not N |
| MI | Minus. True if Negative is set. | N |
| GE | Greater or Equal | (N and V) or (not N and not V) |
| LT | Less Than | (N and not V) or (not N and V) |
| GT | Greater Than | ((N and V) or (not N and not V)) and not Z |
| LE | Less than or Equal | Z or (N and not V) or (not N and V) |
 | *As a compromise, most 68k compilers use BRA (BRanch Always) instruction for this value of "cc" field. |