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S5U1C62000A MANUAL EPSON 63
(S1C60/62 FAMILY ASSEMBLER PACKAGE)
CHAPTER 5: ASSEMBLER
5.7 Assembler Pseudo-Instructions
The assembler pseudo-instructions are not converted to execution codes, but they are designed to control
the assembler or to set data.
For discrimination from other instructions, all the assembler pseudo-instructions begin with a character
"#" or ".". The instructions that begin with "#" are preprocessed pseudo-instructions and they are ex-
panded into forms that can be assembled. The expanded results are delivered in the preprocessed file
(.ms). The original statements of the pseudo-instructions (#) are changed as comments by attaching a ";"
before delivering to the file. The instruction that begins with "." are used for section and data definitions.
They are not converted at the preprocessing stage.
All the pseudo-instruction characters are not case sensitive.
The following pseudo-instructions are available in the assembler:
Pseudo-instruction Function Old instruction
#include Includes another source. –
#define Defines a constant string. EQU
#macro–#endm Defines a macro. MACRO–ENDM
#ifdef–#else–#endif Defines an assemble condition. –
#ifndef–#else–#endif Defines an assemble condition. –
.align Sets alignment of a section. –
.org Sets an absolute address. ORG
.page Sets a page number. PAGE
.bank Sets a bank number. BANK
.code Declares a CODE section (mapping to the built-in ROM). SECTION
.bss Declares a BSS section (mapping to the built-in RAM). –
.codeword Defines data in the CODE section. DW
.comm Secures a global area in the BSS section. –
.lcomm Secures a local area in the BSS section. –
.global Defines an external reference symbol. –
.set Defines an absolute address symbol. SET
.list Controls assembly list output. –
.nolist Controls assembly list output. –
.stabs Debugging information (source name). –
.stabn Debugging information (line number). –
The assembler supports the old-type pseudo-instructions shown above.
They are converted into the new format in the preprocessing stage. The LOCAL pseudo-instruction is
removed in the preprocessing stage. The END pseudo-instruction functions the same as the older tool.