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LRET
6-130
LRET
Long Return
SYNTAX OPTIONS
OPCODE
OBJMODE
RPT
CYC
LRET
0111 0110 0001 0100
X
−
8
Operands
None
Description
Long return. The return address is popped, from the software stack into the
PC, in two 16-bit operations:
SP = SP – 1;
temp(31:16) = [SP];
SP = SP − 1;
temp(15:0) = [SP];
PC = temp(21:0);
Flags and
Modes
None
Note:
For more efficient function calls when operating with OBJMODE = 1, use the LCR and
LRETR instructions in place of the LC and LRET instructions.
Repeat
This instruction is not repeatable. If this instruction follows the RPT
instruction, it resets the repeat counter (RPTC) and executes only once.
Example
; Standard function call of FuncA:
LC FuncA
; Call FuncA, return address on stack
.
.
FuncA:
; Function A:
.
.
LRET
; Return from address on stack
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...