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MOV AX, loc16
6-161
MOV AX, loc16
Load AX
SYNTAX OPTIONS
OPCODE
OBJMODE
RPT
CYC
MOV AX, loc16
1001 001A LLLL LLLL
X
−
1
Operands
AX
Accumulator high (AH) or accumulator low (AL) register
loc16
Addressing mode (see Chapter 5)
Description
Load accumulator high register (AH) or accumulator low register (AL)
register with the 16-bit contents of the location pointed to by the “loc16”
addressing mode, leaving the other half of the accumulator register
unchanged:
AX = [loc16];
Flags and
Modes
N
The load to AX is tested for a negative condition. If bit 15 of AX is 1, then
this flag is set; otherwise it is cleared.
Z
The load to AX is tested for a zero condition. The bit is set if the operation
results in AX = 0, otherwise it is cleared
Repeat
This instruction is not repeatable. If this instruction follows the RPT
instruction, it resets the repeat counter (RPTC) and executes only once.
Example
MOV AH, *+XAR0[0]
; Load AH with the 16-bit contents
; of location pointed to by XAR0.
; AL is unchanged.
SB NotZero,NEQ
; Branch if contents of AH were non
; zero.
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...
Page 585: ...This page intentionally left blank 7 32 This page intentionally left blank...