ISBN 83-7279-309-3

The book "Assembler in Coprocessor" takes the reader into the logical structure of the coprocessor, ie to the place where the assembler programmer is very interested. Here, in full splendor, we see the architecture of the coprocessor with its registers: the stack, the coprocessor state, the coprocessor control, the state of the contents of the stack registers. Practically for each coprocessor's command an assembly language was presented that describes in detail the essence of the registry and, above all, the command itself, sometimes included in the form of operating code. In addition, for easier analysis and assimilation of the structure of a particular program, they are presented in graphic form as drawings or images created after their (turbo) debugging. Thanks to this visualization it is easy to see the changes taking place in individual registers or memory cells, even with the smallest modifications of the coprocessor programming environment - regardless of whether they relate to an order or a given command.
A floppy disk is attached to the book, which contains files: * .asm + * .bat.

Table of Contents

1. Basic information about the coprocessor 7
2. Processor registers 9
2.1. Universal registers. 10
2.2. Indicator and index registers 13
2.3. Segment registers 15
2.4. Command indicator 16
2.5. Register of tags 17
3. Coprocessor registers 18
4. On the numbers used every day and in mathematics and physics. 22
5. Turbo Debugger - the basic tool of the programmer 24
6. Orders and data, a list of coprocessor orders 27
6.1. Data transfer orders 33
6.2. Arithmetic orders 49
6.3. Standing orders 93
6.4. Transitional functions orders 95
6.5. Comparison orders 109
6.6. Coprocessor control instructions 131
7. Coprocessor in action
7.1. but first let's check if we have it
7.2. The coprocessor counts and draws 161
8. ASCII codes 165
Appendix A. List of processor instructions 181
Data transfer orders 177
Orders of binary arithmetic 178
Decimal arithmetic 179
Logical instructions 179
Orders of logical and arithmetic shifts 179
Orders operating on single bits and bytes 179
Commands that control data transfer 180
Chain orders 181
Flag control commands 182
Segment register instructions 182
Mixed orders 183
System instructions 183
Orders implemented in MMXTM 184 technology
Appendix B. List of coprocessor orders 187
Data transfer orders 187
Arithmetic orders 188
Intransigent functions orders 188
Standing orders 189
Coprocessor control instructions 189