45111 Datasheet, PDF (141/184 Pages) List of Unclassifed Manufacturers – 14-DAY MONEY BACK GUARANTEE

13 Appendix C: SX Instruction Set
SNC
Skip if carry not set
Command
1) SNC
Words
1
Cycles
1 or 2 (skip)
(4 or 8)
Affects
PC
Coding
0110 0000 0011 SNC
Operation: If C is cleared, the following instruction word is skipped.
Note:
Only one word is skipped by this instruction. To avoid strange results, make sure that any instruction
following SNC is a single-word instruction.
SNZ
Skip if zero is not set
Command
1) SNZ
Words
1
Cycles
1 or 2 (skip)
(4 or 8)
Affects
PC
Coding
0110 0100 0011 SNZ
Operation: If Z is cleared, the following instruction word is skipped.
Note:
Only one word is skipped by this instruction. To avoid strange results, make sure that any instruction
following SNZ is a single-word instruction.
STC
Command
1) STC
Words
1
Operation: The C flag is set.
Cycles
1 (4)
Affects
C
Set carry flag
Coding
0101 0000 0011 STC
STZ
Command
1) STZ
Words
1
Operation: The Z flag is set.
Cycles
1 (4)
Affects
Z
Set zero flag
Coding
0101 0100 0011 STZ
SX-Key/Blitz Development System Manual 2.0 • Parallax, Inc. • Page 141