SC73P1601

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

REV:1.4

2009.08.03

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The instruction is 2-byte long, and it can jump to any position in the ROM.

Example:

JMPS MAIN

JMPS 100H

VENT

Format:

VENT label

Function:

Define the entry and reset address of sub-program.

Expression:

Label is the sub-program name or the address symbol.

Use VENT to specify the entry and reset address of the sub-program, and it must be at the beginning of the

program. The first VENT denotes the reset address and the following VENT instructions denote the entry of the

sub-program. In general, 16 sub-programs can be defined at most. All the sub-programs called by CALL

instruction should be defined in VENT, or else errors will occur in assembly.

Example:

VENT MAIN

VENT SUB1

VENT SUB2

… … … … ..

ORG 100H

MAIN:

NOP

NOP

CALLS SUB1

CALLS SUB2

… … … … .

SUB1:

… … … … .

SUB2:

… … … … .

END

Format:

END

Function:

Use the END instruction to end the assembly of a program.

Expression:

END pseudoinstruction ends the assembly of a program and the content after END will not be processed by

assembler. If END is omitted, the assembler will process all the lines of the source file.

Example:

END