pcjs/docs/pcjs/chipset

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page	PCjs <chipset> Element	/docs/pcjs/chipset/

PCjs ChipSet Component

Format

<chipset>...</chipset>

Purpose

Creates an instance of the ChipSet component, which includes support for the following internal components:

• 8237 Direct Memory Access (DMA) Controller
• 8259 Programmable Interrupt Controller (PIC)
• 8253 Programmable Interval Timers (PIT)
• 8255 Programmable Peripheral Interface (PPI)
• Speaker (sound requires webkitAudioContext support in the web browser)

Attributes

• model (required)

  The IBM PC model number to simulate (must be 5150, 5160 or 5170).

• sw1 (optional): A binary string representing DIP switches #1 through #8 for the SW1 switch block on the IBM PC motherboard, as follows:

  • #1:
    • 0 (OFF) for normal operation
    • 1 (ON) to loop in the ROM BIOS POST (Power-On Self-Test)
  • #2:
    • 0 (OFF) if math coprocessor installed
    • 1 (ON) if math coprocessor NOT installed
  • #3 and #4:
    • 11 for 64Kb
    • 01 for 128Kb
    • 10 for 192Kb
    • 00 for 256Kb
  • #5 and #6:
    • 11 for no monitor (or EGA installed)
    • 01 for Color Display (for use with CGA in 40x25 mode)
    • 10 for Color Display (for use with CGA in 80x25 mode)
    • 00 for Monochrome Display (or more than one Color/Monochrome monitor)
  • #7 and #8:
    • 11 for 1 diskette drive
    • 01 for 2 diskette drives
    • 10 for 3 diskette drives
    • 00 for 4 diskette drives

• sw2 (optional)

  A binary string representing DIP switches 1-8 for the SW2 switch block on the IBM PC motherboard, indicating the number of 32Kb blocks of additional RAM installed (model 5150 only).

• sound (optional)

  true (default) to enable sound, assuming the browser supports webkitAudioContext, or false to disable sound.

• scaletimers (optional)

  false (default) to update timers in sync with CPU speed, true to scale timer updates to match real-world time.

• floppies (optional)

  If no sw1 setting is provided, floppies may be used to specify an array of floppy drive capacities; eg, [360, 360] for two 360Kb drives; default is none. Valid values include: 360, 720, 1200, and 1440.

• monitor (optional)

  If no sw1 setting is provided, monitor specifies the primary monitor type, and should be one of:

  • "none"
  • "tv"
  • "color"
  • "mono"
  • "ega"

• rtcdate (optional)

  Allows a specific startup date and time (model 5170 only); the rtcdate string must be of the form:

   yyyy-mm-ddThh:mm:ss
  

• Also supports the attributes of Component.

Bindings

• sw1

  For use with a control of type switches, which creates a <div> that the ChipSet will use to display the current settings of the SW1 switch block.

• sw2

  Same as above, but for the SW2 switch block, if any.

• swdesc

  For use with a control of type descriptions, which creates a <div> that the ChipSet will use to display a text description of the selected DIP switch settings.

Example

<chipset id="chipset" model="5150" sw1="01000001" sw2="11110000"/>

Output

<div id="..." class="pc-chipset pc-component">
	<div class="pc-container">
		<div class="pcjs-chipset" data-value="id:'...',name:'...',model:'...',sw1:'...',sw2:'...'"></div>
	</div>
</div>

Also, if any controls are defined, another <div> of class="pc-controls" is created in the container <div>, with each control inside a <div> of class="pc-control".

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