Assembler unit processes assembly instuctions in the Asm-end block and generates code for them.

Processing Assembler Instructions

This procedure processes one assembler instruction.

Extracting Assembler Tokens

This procedure scans assembler instruction and returns next assembler token.

Identifiers In Assembler Instructions

This function checks if identifier in instruction is valid and returns its data.

Processing Assembler Expressions

Assembler expressions (instruction parameters) are processed similarly to Pascal expressions. The expression is divided into smaller parts according to the operator precedence.

Processing Assembler Directives

This function checks and processes assembler directives DB, DW and DD.

Generating Assembler Instruction Opcodes

Assembler instructions (in fact mnemonics) are stored in a symbol table where each instruction has few data bytes which define which procedure will process it and what combinations of parameters are possible.

Intermediate Code For Assembler Instructions

This procedure generates intermediate code from opcodes and references generated for current assembler instruction.

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