FNX6809 GraphicsVTIOCalls: Difference between revisions
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(Created page with "== Graphics Summary == == vtio Get/Set Stat Calls == === SS.AScrn === Allocate a bitmap screen Entry: R$Y = bitmap# (0-2) R$X = screentype (0=320x240, 1=320x200) Exit: B = A non-zero error code. CC = Carry flag clear to indicate success X = Starting Page# of bitmap address === SS.DScrn === Display Screen Settings Set MCR to display text or graphics or both Entry: R$X = Vicky_MCR Low Byte R$Y = Vicky_MCR High Byte Exit: Nothin...") |
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== Graphics Summary == | == Graphics Summary == | ||
Use the <code>fstatus</code> command in Level 2 to see the current status of the graphics registers. | |||
There is a default clut memory module included called <code>xtclut</code> in CMDS. This has the xterm colors according to [https://www.ditig.com/publications/256-colors-cheat-sheet this chart] | |||
== vtio Get/Set Stat Calls == | == vtio Get/Set Stat Calls == | ||
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$FFC0 MASTER_CTRL_REG_L, MASTER_CTRL_REG_H | $FFC0 MASTER_CTRL_REG_L, MASTER_CTRL_REG_H | ||
******************************************************************** | ******************************************************************** | ||
* vtio graphics constants (in f256.d) | * vtio graphics constants (in f256.d) | ||
******************************************************************** | ******************************************************************** | ||
* Constants used in SS.DScrn to set the display screen type | * Constants used in SS.DScrn to set the display screen type | ||
FX_GAM equ %01000000 Gamma Correction On | FX_GAM equ %01000000 Gamma Correction On | ||
FX_SPR equ %00100000 Sprites On | FX_SPR equ %00100000 Sprites On | ||
FX_TIL equ %00010000 Tile Maps On | FX_TIL equ %00010000 Tile Maps On | ||
FX_BM equ %00001000 Bitmaps On | FX_BM equ %00001000 Bitmaps On | ||
FX_GRF equ %00000100 Graphics Mode On | FX_GRF equ %00000100 Graphics Mode On | ||
FX_OVR equ %00000010 Overlay Text on Graphics | FX_OVR equ %00000010 Overlay Text on Graphics | ||
FX_TXT equ %00000001 Text Mode On | FX_TXT equ %00000001 Text Mode On | ||
FT_FSET equ %00100000 Font Set 1 On (0=Font Set 0) | FT_FSET equ %00100000 Font Set 1 On (0=Font Set 0) | ||
FT_FOVR equ %00010000 FG and BG colors displayed when overlay text 0=transparent | FT_FOVR equ %00010000 FG and BG colors displayed when overlay text 0=transparent | ||
FT_MON equ %00001000 Turn off monitor sync and sleep monitor | FT_MON equ %00001000 Turn off monitor sync and sleep monitor | ||
FT_DBX equ %00000100 Double-wide text mode characters | FT_DBX equ %00000100 Double-wide text mode characters | ||
FT_DBY equ %00000010 Double-high text mode characters | FT_DBY equ %00000010 Double-high text mode characters | ||
FT_CLK70 equ %00000001 70 Hz screen (640x400 txt,320x200 grf) | FT_CLK70 equ %00000001 70 Hz screen (640x400 txt,320x200 grf) | ||
FX_OMIT equ %11111111 Setting for SS.DScrn don't change first byte in MCR | FX_OMIT equ %11111111 Setting for SS.DScrn don't change first byte in MCR | ||
FT_OMIT equ %11111111 Setting for SS.DScrn don't change second byte in MCR | FT_OMIT equ %11111111 Setting for SS.DScrn don't change second byte in MCR | ||
=== SS.PScrn === | === SS.PScrn === | ||
Latest revision as of 08:51, 6 October 2024
Graphics Summary[edit | edit source]
Use the fstatus command in Level 2 to see the current status of the graphics registers.
There is a default clut memory module included called xtclut in CMDS. This has the xterm colors according to this chart
vtio Get/Set Stat Calls[edit | edit source]
SS.AScrn[edit | edit source]
Allocate a bitmap screen
Entry: R$Y = bitmap# (0-2)
R$X = screentype (0=320x240, 1=320x200)
Exit: B = A non-zero error code.
CC = Carry flag clear to indicate success
X = Starting Page# of bitmap address
SS.DScrn[edit | edit source]
Display Screen Settings
Set MCR to display text or graphics or both
Entry: R$X = Vicky_MCR Low Byte
R$Y = Vicky_MCR High Byte
Exit: Nothing. This just sets the register and updates driver variables
VICKY MASTER CONTROL REGISTER to enable graphics and capabilities
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | | X | GAMMA | SPRITE | TILE | BITMAP | GRAPH | OVRLY | TEXT | | ----- | FON_SET|FON_OV| MON_SLP| DBL_Y | DBL_X | CLK70| $FFC0 MASTER_CTRL_REG_L, MASTER_CTRL_REG_H ******************************************************************** * vtio graphics constants (in f256.d) ******************************************************************** * Constants used in SS.DScrn to set the display screen type
FX_GAM equ %01000000 Gamma Correction On FX_SPR equ %00100000 Sprites On FX_TIL equ %00010000 Tile Maps On FX_BM equ %00001000 Bitmaps On FX_GRF equ %00000100 Graphics Mode On FX_OVR equ %00000010 Overlay Text on Graphics FX_TXT equ %00000001 Text Mode On FT_FSET equ %00100000 Font Set 1 On (0=Font Set 0) FT_FOVR equ %00010000 FG and BG colors displayed when overlay text 0=transparent FT_MON equ %00001000 Turn off monitor sync and sleep monitor FT_DBX equ %00000100 Double-wide text mode characters FT_DBY equ %00000010 Double-high text mode characters FT_CLK70 equ %00000001 70 Hz screen (640x400 txt,320x200 grf) FX_OMIT equ %11111111 Setting for SS.DScrn don't change first byte in MCR FT_OMIT equ %11111111 Setting for SS.DScrn don't change second byte in MCR
SS.PScrn[edit | edit source]
Position Screen Layers
Set layer to display a screen
Entry: R$X = layer (0-2)
R$Y = bitmap# (0-2), tilemap (4-6)
Exit: B = A non-zero error code.
CC = Carry flag clear to indicate success
SS.FScrn[edit | edit source]
Free a bitmap screen
Entry: R$Y = bitmap# (0-2)
Exit: B = A non-zero error code.
CC = Carry flag clear to indicate success
SS.DfPal[edit | edit source]
Define Palette and populate a CLUT from Memory Module
Entry: R$X = CLUT # (0-3)
R$Y = pointer to location of data in caller process
(Caller must load data module)
Exit: B = A non-zero error code.
CC = Carry flag clear to indicate success
