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ADD AX, loc16
6-27
ADD AX, loc16
Add Value to AX
SYNTAX OPTIONS
OPCODE
OBJMODE
RPT
CYC
ADD AX, loc16
1001 010A LLLL LLLL
X
−
1
Operands
AX
Accumulator high (AH) or accumulator low (AL) register
loc16
Addressing mode (see Chapter 5)
Description
Add the contents of the location pointed to by the “loc16” addressing mode to
the specified AX register (AH or AL) and store the result in the AX register:
AX = AX + [loc16];
Flags and
Modes
N
After the addition, AX is tested for a negative condition. If bit 15 of AX is 1, then
the negative flag bit is set, otherwise it is cleared.
Z
After the addition, AX is tested for a zero condition. The zero flag bit is set if the
operation results in AX = 0; otherwise it is cleared.
C
If the addition generates a carry, C is set; otherwise, C is cleared.
V
If an overflow occurs, V is set; otherwise V is not affected. Signed positive
overflow occurs if the result crosses the max positive value (0x7FFF) in the
positive direction. Signed negative overflow occurs if the result crosses the
max negative value (0x8000) in the negative direction.
Repeat
This instruction is not repeatable. If this instruction follows the RPT
instruction, it resets the repeat counter (RPTC) and executes only once.
Example
; Add the contents of VarA with VarB and store in VarC
MOV AL,@VarA
; Load AL with contents of VarA
ADD AL,@VarB
; Add to AL contents of VarB
MOV @VarC,AL
; Store result in VarC
Summary of Contents for TMS320C28x
Page 30: ...1 12...
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Page 269: ...IN loc16 PA 6 112 MOV AL 0 AL 0 UOUT IORegC AL IOspace IORegC AL 10...
Page 308: ...MAXCUL P loc32 6 151 Saturate MOVL Var64 2 ACC Store result into Var64 MOVL Var64 P...
Page 509: ...SUBL ACC P PM 6 352 SUBL ACC P PM ACC S B 11 M X 4 MOVH Y ACC 5 Store Q15 result into Y...
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