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gpu: reading existence of other banks using mmio

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This commit is contained in:
minjaesong
2022-04-14 14:08:03 +09:00
parent 4a02198d79
commit b46c1d6f01
4 changed files with 11 additions and 6 deletions
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2
assets/bios/tsvmbios.js
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@@ -49,7 +49,7 @@ graphics.setFramebufferScroll(0,-((1.0-tdiff/tlen)*164)|0);}
// show how much ram is there // show how much ram is there
con.color_pair(239,14); con.color_pair(239,14);
let vramstr="VIDEO RAM : 256 Kbytes"; let vramstr=`VIDEO RAM : ${256 * sys.peek(-131084)} Kbytes`;
let uramstr=` USER RAM : ${system.maxmem()>>>10} Kbytes`; let uramstr=` USER RAM : ${system.maxmem()>>>10} Kbytes`;
con.move(20,(80-vramstr.length)/2);println(vramstr); con.move(20,(80-vramstr.length)/2);println(vramstr);
con.move(21,(80-uramstr.length)/2);println(uramstr); con.move(21,(80-uramstr.length)/2);println(uramstr);

7
terranmon.txt
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@@ -241,17 +241,18 @@ MMIO
Text mode rows Text mode rows
6 RW 6 RW
Text-mode attributes Text-mode attributes
0b kkkk 00rc (k: currently using character rom, r: TTY Raw mode, c: Cursor blink) 0b 0000 00rc (r: TTY Raw mode, c: Cursor blink)
7 RW 7 RW
Graphics-mode attributes Graphics-mode attributes
0b 0000 000g (g: Use sprites(wipes out text buffer)) 0b 0000 rrrr (r: Resolution/colour depth)
8 RO 8 RO
Last used colour (set by poking at the framebuffer) Last used colour (set by poking at the framebuffer)
9 RW 9 RW
current TTY foreground colour (useful for print() function) current TTY foreground colour (useful for print() function)
10 RW 10 RW
current TTY background colour (useful for print() function) current TTY background colour (useful for print() function)
11 RO
Number of Banks, or VRAM size (1 = 256 kB, max 4)
Text-mode-font-ROM is immutable and does not belong to VRAM Text-mode-font-ROM is immutable and does not belong to VRAM
Even in the text mode framebuffer is still being drawn onto the screen, and the texts are drawn on top of it Even in the text mode framebuffer is still being drawn onto the screen, and the texts are drawn on top of it

4
tsvm_core/src/net/torvald/tsvm/GraphicsJSR223Delegate.kt
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@@ -15,6 +15,10 @@ class GraphicsJSR223Delegate(val vm: VM) {
return vm.findPeribyType(VM.PERITYPE_GPU_AND_TERM)?.peripheral as? GraphicsAdapter return vm.findPeribyType(VM.PERITYPE_GPU_AND_TERM)?.peripheral as? GraphicsAdapter
} }
fun getVramSize() {
getFirstGPU()?.mmio_read(11)
}
fun resetPalette() { fun resetPalette() {
getFirstGPU()?.poke(250883L, 1) getFirstGPU()?.poke(250883L, 1)
} }

4
tsvm_core/src/net/torvald/tsvm/peripheral/GraphicsAdapter.kt
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@@ -36,7 +36,7 @@ data class AdapterConfig(
) )
data class SuperGraphicsAddonConfig( data class SuperGraphicsAddonConfig(
val hasSecondBank: Boolean = false val bankCount: Int = 1
) )
class ReferenceGraphicsAdapter(assetsRoot: String, vm: VM) : GraphicsAdapter(assetsRoot, vm, GraphicsAdapter.DEFAULT_CONFIG_COLOR_CRT) class ReferenceGraphicsAdapter(assetsRoot: String, vm: VM) : GraphicsAdapter(assetsRoot, vm, GraphicsAdapter.DEFAULT_CONFIG_COLOR_CRT)
@@ -268,7 +268,7 @@ open class GraphicsAdapter(private val assetsRoot: String, val vm: VM, val confi
8L -> lastUsedColour 8L -> lastUsedColour
9L -> ttyFore.toByte() 9L -> ttyFore.toByte()
10L -> ttyBack.toByte() 10L -> ttyBack.toByte()
11L -> 1 11L -> sgr.bankCount.toByte()
in 0 until VM.MMIO_SIZE -> -1 in 0 until VM.MMIO_SIZE -> -1
else -> null else -> null