Stereo System User Manual

Individual Instruction Descriptions
4-77 Assembly Language Instructions
4.14.2 ADDB ADD BYTE
Syntax
[ label ] name dest, src Clock, clk Words, w With RPT, clk Class
ADDB A n , imm8 1 1 N/R 2a
ADDB R x , imm8 1 1 N/R 4b
Execution dest ⇐ dest + src
PC ⇐ PC + 1
Flags Affected dest is A n :OF, SF, ZF, CF are set accordingly
dest is R x : RCF, RZF are set accordingly
Opcode
Instructions 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
ADDB A n imm5 1 0 1 0 0 0 0 A n imm8
ADD R x , imm8 1 0 1 1 0 0 k4 k3 k2 k7 k6 k5 R x k1 k0
See Also ADD, ADDS, SUB, SUBB, SUBS
Description Add immediate value of unsigned src byte to value stored in dest register and
store result in the same dest register.
Example 4.14.2.1 ADDB A2, 0x45
Add immediate 0x45 to A2.
Example 4.14.2.2 ADDB R5, 0xf2
Add immediate 0xf2 to R5.