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Individual Instruction Descriptions
4-75Assembly Language Instructions
4.14.1 ADD Add word
Syntax
[label] name dest, src [, src1] [,mod] Clock, clk Words, w With RPT, clk Class
ADD An[~], An, {adrs} [, next A] Table 4–46 Table 4–46
Table 4–46
1a
ADD An[~], An[~], imm16 [, next A] 2 2 N/R 2b
ADD An[~], An[~], PH [, next A] 1 1 n
R
+3 3
ADD An[~], An~, An [, next A] 1 1 n
R
+3 3
ADD Rx, imm16 2 2 N/R 4c
ADD Rx, R5 1 1 n
R
+3 4d
ADD
†
APn, imm5 1 1 N/R 9c
†
Does not affect the status flags.
Execution [premodify AP if mod specified]
dest ⇐ dest + src (for two operands)
dest ⇐ src + src1 (for three operands)
PC ⇐ PC + w
Flags Affected dest is An:OF, SF, ZF, CF are set accordingly
dest is Rx: RCF, RZF are set accordingly
src1 is {adrs}: TAG is set accordingly
Opcode
Instructions 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
ADD An[~], An, {adrs} [, next A]
0 0 0 0 ~A next A An adrs
x dma16 (for direct) or offset16 (long relative) [see section 4.13]
ADD An[~], An[~], imm16 [, next A]
1 1 1 0 0 next A An 0 0 0 0 0 1 A~ ~A
x imm16
ADD An[~], An[~], PH [, next A] 1 1 1 0 0 next A An 0 1 1 0 1 0 A~ ~A
ADD An[~], An~, An [, next A] 1 1 1 0 0 next A An 0 0 1 0 1 0 A~ ~A
ADD Rx, imm16
1 1 1 1 1 1 1 0 0 0 0 0 Rx 0 0
x imm16
ADD Rx, R5 1 1 1 1 1 1 1 0 0 1 0 0 Rx 0 0
ADD APn, imm5 1 1 1 1 1 0 1 APn 0 1 0 imm5