User`s guide

KA52/53/54 CPU Module Description
1.1 KA52/53/54 CPU Module
• Address
• Variable-length bit field
• Control
• Procedure call
• Miscellaneous
• Queue
• Character string instructions
• MOVC3/MOVC5
• CMPC3/CMPC5
• LOCC
• SCANC
• SKPC
• SPANC
• Operating system support
• f_floating-point, d_floating-point, and g_floating-point
The NVAX processor chip provides special microcode assistance to aid the
macrocode emulation of the following instruction groups:
• Character string (other than those mentioned previously)
• Decimal string
• CRC
• EDITPC
The operating system uses software emulation to support other VAX
instructions. Figure 1–3 shows the controls, indicators, ports, and connectors
on the KA52/53/54 CPU module. Table 1–1 describes the functions of the
controls, indicators, ports, and connectors.
KA52/53/54 CPU Module Description 1–5