It is largely similar to the Motorola 68000 CPU, with the exception of the addition of several instructions for breakpoint and register control (ccr instead of sr), as well as the ability to save all of the processor state on an interrupt and exception.
This made it possible to use the processor for virtual memory applications, for which the 68000 was unsuited; specifically, contrary to the 68000, the 68010 was able to handle a double bus fault.
The 68010 could be used with the 68451 MMU, but problems with the design, in particular a 1 clockmemory access penalty made this configuration unpopular and led to other vendors such as Sun Microsystems using their own MMU design.
This text was written for the student in a course of study that requires a thorough knowledge of the Motorola family of microprocessors.
After these basic family members are understood, the newest members (68010, 68020, 68030, and 68040) are introduced and any differences and new features that exist are highlighted.
The other family members, which include the 68010, 68020, 68030, and 68040, are compared and contrasted with the 68000 and 68008 in chapters 12 and 13.
Although there are some differences between the 68010 and 68020, they aren't significant to Xinu and so this document will treat the processors as being identical.
The 68010 number of registers, is capable of moving or operating on data which resides either in these registers or in main memory, can receive interrupts from external sources, etc. A notable feature of the 68000 series processors is that they differentiate between registers that hold data and those that hold addresses.
To comprehend assembler routines that are called from C language routines, or that call C language routines themselves, you need to understand the calling sequence conventions used by the C compiler.
It is designed to support weather forecast activities and aviation operations and, at the same time, support the needs of the meteorological, hydrological, and climatological research communities.
Memory map: The bus layout of the VGMD processor board is different from the XYCOM processor board (used by the baseline version of the ACU software).
The Motorola68010 processor on XYCOM board sits on VME-bus and it directly communicates with VME devices on the system.
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68000 Assembly Language Programming/Includes 68010 and 68020 (Paperback)
