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- ===========================================================================
- BBS: PC Connect
- Date: 04-27-92 (06:26) Number: 10876
- From: REX BENNETT Refer#: 10847
- To: JEFFERY WOODS Recvd: NO
- Subj: GRAPHICS PAGES, 1 of 2 Conf: (11) R-QBasic
- ---------------------------------------------------------------------------
- JW>Anyone know how to determine the number of graphics pages you have
- JW>available? Does it depend on the amount of graphics memory present, or
- JW>is it set by the graphics mode? If it is the graphics mode which
- JW>determines the maximum number of pages, how many pages are possible in
- JW>each mode?
-
- What hardware you have (graphics card and monitor) determines the
- video modes you have available. The video modes (SCREEN #)
- determines the number of pages available and the page sizes.
-
- The smallest page size is 2k and ranges up to 300k at 640x480
- resolution. Still higher resolution calls for still larger
- pages sizes. Below is some information I think you may find
- helpful.
-
- (P.S. Does anyone out there know if the [unannounced Basic
- programming product from Microsoft] will support the new
- higher graphics resolutions?)
- -----------------------------------------------------------------------
- MDPA Screen Modes
-
- The IBM Monochrome Display and Printer Adapter (MDPA) must be used with
- a monochrome display. Only SCREEN 0, text mode, can be used with the MDPA.
-
- Rows and Color Display
- Mode columns attributes colors Resolution Pages
- ════ ════════ ════════ ═══════ ══════════ ═════
- 0 80x25 16 3 720x350 1
-
- Hercules Adapter Screen Modes
-
- Rows and Color Display
- Mode columns attributes colors Resolution Pages
- ════ ════════ ════════ ═══════ ══════════ ═════
- 0 80x25 16 3 720x348 1
- 3 80x25 16 1 720x348 2
-
- CGA Screen Modes
-
- The IBM Color Graphics Adapter (CGA) and Color Display are typically
- paired. This combination permits running text-mode programs, and both
- medium-resolution and high-resolution graphics programs.
-
- Rows and Color
- Mode columns attributes Resolution Pages
- ════ ════════ ════════ ══════════ ═════
- 0 40x25 16 320x200 8
- 0 80x25 16 640x200 4
- 1 40x25 4 320x200 1
- 2 80x25 2 640x200 1
-
- Following are the screen modes that can be used with an EGA:
-
- Rows and Color Display Page
- Mode columns Display(a) attributes colors Resolution size Pages
- ════ ════════ ══════════ ══════════ ═══════ ══════════ ════ ═════
- 0 40x25 C 16 16 320x200 N/A 8
- 40x25 E 16 64 320x350 N/A 8
- 40x43 E 16 64 320x350 N/A "(b)
- 80x25 C 16 16 640x200 N/A "(b)
- 80x25 E 16 64 640x350 N/A "(b)
- 80x25 C 16 16 640x200 N/A "(b)
- 80x25 M 16 3 720x350 N/A "(b)
- 80x43 E 16 64 640x350 N/A 4(b)
- 80x43 M 16 3 720x350 N/A 4(b)
- 1 40x25 N/A 4 16 320x200 16K 1
- 2 80x25 N/A 2 16 640x200 16K "
- 7 40x25 N/A 16 16 320x200 32K (c)
- 8 80x25 N/A 16 16 640x200 64K (c)
- 9(d) 80x25 E 4 64 640x350 64K 1
- 80x43 E 4 64 640x350 64K 1
- 80x25 E 16 64 640x350 128K (c)
- 80x43 E 16 64 640x350 128K (c)
- 10 80x25 M 4 9 640x350 64K (e)
- 80x43 M 4 9 640x350 64K (e)
-
-
- VGA Screen Modes
-
- The IBM Video Graphics Array (VGA) adapter offers significantly enhanced
- text and graphics in all modes.
-
- Rows and Color Page
- Mode columns attributes Colors Resolution size Pages
- ════ ════════ ══════════ ══════ ══════════ ════ ═════
- 0 40x25 16 64 360x400 8
- 40x43 16 64 320x350 8
- 40x50 16 64 320x400 4
- 80x25 16 64 720x400 8
- 80x43 16 64 640x350 4
- 80x43 16 3 720x350 4
- 80x50 16 64 640x400 4
- 80x50 16 3 720x400 4
- 1 40x25 4 16 320x200 16K 1
- 2 80x25 2 16 640x200 16K 1
- * * * C O N T I N U E D T O N E X T M E S S A G E * * *
-
- PCRelay:PETEXCH -> #60 RelayNet (tm)
- 4.11 St Pete Programmers Exchg *HST* 813 527-5666
- ===========================================================================
- BBS: PC Connect
- Date: 04-27-92 (06:26) Number: 10877
- From: REX BENNETT Refer#: 10847
- To: JEFFERY WOODS Recvd: NO
- Subj: GRAPHICS PAGES - *2 of 2 Conf: (11) R-QBasic
- ---------------------------------------------------------------------------
- ****CONTINUED FROM PREVIOUS MESSAGE****
-
- 7 40x25 16 16 320x200 32K (a)
- 8 80x25 16 16 640x200 64K (a)
- 9 80x25 16 64 640x350 128K (a)
- 80x43 16 64 640x350 128K (a)
- 10 80x25 4 9 640x350 64K (b)
- 80x43 4 9 640x350 64K (b)
- 11 80x30 2 256 640x480 64K 1
- 80x60 2 256 640x480 64K 1
- 12 80x30 16 256 640x480 256K 1
- 80x60 16 256 640x480 256K 1
- 13 40x25 256 256 320x200 64K 1
- ───────────────────────────────────────────────────────────────────────
- (a) Pages = Screen memory divided by page size. Eight page maximum.
- (b) Pages = Screen memory divided by 2 divided by page size. Eight
- page maximum.
- MCGA Screen Modes
-
- The IBM Multicolor Graphics Array (MCGA) combines the modes of the CGA with
- the very high resolution and 256K color modes of the VGA to provide enhanced
- text and graphics in all modes.
-
- Rows and Color Display Page
- Mode columns attributes colors Resolution size Pages
- ════ ════════ ══════════ ═══════ ══════════ ════ ═════
- 0 40x25 16 320x400 8
- 80x25 16 640x400 8
- 1 40x25 4 320x200 16K 1
- 2 80x25 2 640x200 16K 1
- 11 80x30 2 256K 640x480 64K 1
- 80x60 2 256K 640x480 64K 1
- 13 40x25 256 256K 320x200 64K 1
-
- The MCGA uses the same display color values as the VGA. For a description
- of how the MCGA calculates display color values, see
-
-
-
-
- PCRelay:PETEXCH -> #60 RelayNet (tm)
- 4.11 St Pete Programmers Exchg *HST* 813 527-5666
-