3 assembler control pseudo-instructions, 6 macro-functions, 1 macro-instructions – Epson S1C62 Family User Manual

Page 45: Assembler control pseudo-instructions, Macro-instructions, End end to terminate assembly, Jpm label2 : page 2 label2 ld a,0

CROSS ASSEMBLER ASM62XX

S1C62 FAMILY

EPSON

III-15

DEVELOPMENT TOOL REFERENCE MANUAL

4.5.3

Assembler control pseudo-instructions

■

END

To terminate assembly

The END statement terminates assembly. All statements following the END statement are ignored. Be
sure to write this statement at the end of the program. If it is missing, assembly may not terminate.
A label can be written before the END statement, but it cannot be referenced because it is not cataloged
in the label table.

4.6 Macro-Functions

When using the same statement block at multiple locations in a program, the statement block can be called
using a name defined beforehand. A statement block that has been so defined is called a macro.
Unlike a subroutine, the statement block is expanded at all locations where it is called, so the programmer
should consider the statement block size and frequency of use and determine whether a macro or a subrou-
tine is more appropriate.

4.6.1

Macro-instructions

Example:

Source file

:
JPM LABEL2
:
PAGE 2
LABEL2 LD A,0
:

Assembly list file after expansion

:
JPM LABEL2
+ PSET LABEL2
+ JP LABEL2
:
PAGE 2
LABEL2 LD A,0
:

ASM62XX provides the macro-
instructions listed below so that
branching between pages is possible
without specifying the destination
page using the PSET instruction.

Character string ps represents 13-bit
immediate data that indicates the
branch-destination address. A label
can be used for it.

JPM ps

JPM C,ps

JPM NC,ps

JPM Z,ps

JPM NZ,ps

CALLM ps

PSET p

JP s

PSET p

JP C,s

PSWT p

JP NC,s

PSET p

JP Z,s

PSET p

JP NZ,s

PSET p

CALL s

1
0
1
0
1
0
1
0
1
0
1
0

1
0
1
0
1
0
1
1
1
1
1
1

1
0
1
1
1
1
1
1
1
1
1
0

0
0
0
0
0
1
0
0
0
1
0
0

11 10 9

Code

Mnemonic

after expansion

Macro-

instruction