Topic       : Pure Assembler Documentation
Author      : John Kormylo
Version     : PASM.HYP 1.0
Subject     : Documentation/Pure Assembler
Nodes       : 740
Index Size  : 20262
HCP-Version : 3
Compiled on : Atari
@charset    : atarist
@lang       : en
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@help       : Help
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View Ref-File[ Condition Code Register ]

... is actually the rightmost byte of the Status Register.  This byte
contains the bit flags used by the Bcc instruction and can be accessed
separately from the SR starting with the 68020.

Each instruction affects these flags differently.

Bit  | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
-----+---+---+---+---+---+---+---+---+
Flag |           | X | N | Z | V | C |

X    Extend bit.
N    Negative (sign) flag.
Z    Zero flag (set when all bits zero)
V    Overflow flag (set whenever the second leftmost bit changes).
C    Carry bit.

See also Condition Codes, FPSR and PSR.