bas7advr.hlp (
Topic list)
PCOPY Statement Details
◄Syntax► ◄Details► ◄Example► ◄Contents► ◄Index► ◄Back►
──────────────────────────────────────────────────────────────────────────────
Copies one video memory page to another.
PCOPY sourcepage%,destinationpage%
Usage Notes
■ The number of video memory pages available depends on the current
screen mode, the graphics adapter, and how much screen memory is
on that adapter:
MDPA Screen Modes:
Rows and
Mode Columns Resolution Pages
0 80x25 720x350 1
Hercules Adapter Screen Modes:
Rows and
Mode Columns Resolution Pages
0 80x25 720x348 2
3 80x25 720x348 2
CGA Screen Modes
Rows and
Mode Columns Resolution Pages
0 40x25 320x200 8
80x25 640x200 4
1 40x25 320x200 1
2 80x25 640x200 1
EGA Screen Modes
Rows and Page
Mode Columns Display(a) Resolution Size Pages
0 40x25 Color 320x200 - 8
40x25 Enhanced 320x350 - 8
40x43 Enhanced 320x350 - (c)
80x25 Color 640x200 - (c)
80x25 Enhanced 640x350 - (c)
80x25 Color 640x200 - (c)
80x25 Monochrome 720x350 - (c)
80x43 Enhanced 640x350 - 4(c)
80x43 Monochrome 720x350 - 4(c)
1 40x25 - 320x200 16K 1
2 80x25 - 640x200 16K 1
7 40x25 - 320x200 32K (a)
8 80x25 - 640x200 64K (a)
9(d) 80x25 Enhanced 640x350 64K 1
80x43 Enhanced 640x350 64K 1
80x25 Enhanced 640x350 128K (a)
80x43 Enhanced 640x350 128K (a)
10 80x25 Monochrome 640x350 64K (b)
80x43 Monochrome 640x350 64K (b)
___________________________________________________________________
(a) Pages = Screen memory divided by page size. Eight page maximum,
one page minimum.
(b) Pages = Screen memory divided by 2 divided by page size. Eight
page maximum, one page minimum.
(c) Number of pages is halved with 64K.
(d) The first two entries under mode 9 are for an EGA with 64K
of screen memory. The next two entries assume more than 64K
of screen memory.
VGA Screen Modes:
Rows and Page
Mode Columns Resolution Size Pages
0 40x25 360x400 - 8
40x43 320x350 - 8
40x50 320x400 - 4
80x25 720x400 - 8
80x43 640x350 - 4
80x43 720x350 - 4
80x50 640x400 - 4
80x50 720x400 - 4
1 40x25 320x200 16K 1
2 80x25 640x200 16K 1
7 40x25 320x200 32K (a)
8 80x25 640x200 64K (a)
9 80x25 640x350 128K (a)
80x43 640x350 128K (a)
10 80x25 640x350 64K (b)
80x43 640x350 64K (b)
11 80x30 640x480 64K 1
80x60 640x480 64K 1
12 80x30 640x480 256K 1
80x60 640x480 256K 1
13 40x25 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:
Rows and Page
Mode Columns Resolution Size Pages
0 40x25 320x400 - 8
80x25 640x400 - 8
1 40x25 320x200 16K 1
2 80x25 640x200 16K 1
11 80x30 640x480 64K 1
80x60 640x480 64K 1
13 40x25 320x200 64K 1