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fix: incorrect MMIO addressing of FB3/4

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This commit is contained in:
minjaesong
2025-10-09 20:55:14 +09:00
parent 31457974be
commit 0b7b8cdd35
3 changed files with 54 additions and 15 deletions
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18
tsvm_core/src/net/torvald/tsvm/GraphicsJSR223Delegate.kt
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@@ -268,8 +268,24 @@ class GraphicsJSR223Delegate(private val vm: VM) {
fun clearPixels2(col: Int) {
getFirstGPU()?.let {
it.poke(250883L, 4)
it.poke(250884L, col.toByte())
it.poke(250883L, 4)
it.applyDelay()
}
}
fun clearPixels3(col: Int) {
getFirstGPU()?.let {
it.poke(250884L, col.toByte())
it.poke(250883L, 6)
it.applyDelay()
}
}
fun clearPixels4(col: Int) {
getFirstGPU()?.let {
it.poke(250884L, col.toByte())
it.poke(250883L, 8)
it.applyDelay()
}
}

30
tsvm_core/src/net/torvald/tsvm/peripheral/GraphicsAdapter.kt
View File

@@ -230,15 +230,15 @@ open class GraphicsAdapter(private val assetsRoot: String, val vm: VM, val confi
override fun peek(addr: Long): Byte? {
val adi = addr.toInt()
if (framebuffer4 != null && addr >= 524288) {
return when (addr - 524288) {
in 0 until 250880 -> framebuffer4[addr - 524288]
if (framebuffer4 != null && addr >= 786432) {
return when (addr - 786432) {
in 0 until 250880 -> framebuffer4[addr - 786432]
else -> null
}
}
else if (framebuffer3 != null && addr >= 393216) {
return when (addr - 393216) {
in 0 until 250880 -> framebuffer3[addr - 393216]
else if (framebuffer3 != null && addr >= 524288) {
return when (addr - 524288) {
in 0 until 250880 -> framebuffer3[addr - 524288]
else -> null
}
}
@@ -291,19 +291,19 @@ open class GraphicsAdapter(private val assetsRoot: String, val vm: VM, val confi
val adi = addr.toInt()
val bi = byte.toInt().and(255)
if (framebuffer4 != null) {
when (addr - 524288) {
when (addr - 786432) {
in 0 until 250880 -> {
lastUsedColour = byte
framebuffer4[addr - 524288] = byte
framebuffer4[addr - 786432] = byte
return
}
}
}
if (framebuffer3 != null) {
when (addr - 393216) {
when (addr - 524288) {
in 0 until 250880 -> {
lastUsedColour = byte
framebuffer3[addr - 393216] = byte
framebuffer3[addr - 524288] = byte
return
}
}
@@ -417,6 +417,8 @@ open class GraphicsAdapter(private val assetsRoot: String, val vm: VM, val confi
private fun runCommand(opcode: Byte) {
val arg1 = unusedArea[4].toInt().and(255)
val arg2 = unusedArea[5].toInt().and(255)
val arg3 = unusedArea[6].toInt().and(255)
val arg4 = unusedArea[7].toInt().and(255)
when (opcode.toInt()) {
1 -> {
@@ -432,6 +434,12 @@ open class GraphicsAdapter(private val assetsRoot: String, val vm: VM, val confi
4 -> {
framebuffer2?.fillWith(arg1.toByte())
}
6 -> {
framebuffer3?.fillWith(arg1.toByte())
}
8 -> {
framebuffer4?.fillWith(arg1.toByte())
}
3 -> {
for (it in 0 until 1024) {
val rgba = DEFAULT_PALETTE[it / 4]
@@ -440,6 +448,8 @@ open class GraphicsAdapter(private val assetsRoot: String, val vm: VM, val confi
}
framebuffer.fillWith(arg1.toByte())
framebuffer2?.fillWith(arg2.toByte())
framebuffer3?.fillWith(arg3.toByte())
framebuffer4?.fillWith(arg4.toByte())
}
16, 17 -> readFontRom(opcode - 16)
18, 19 -> writeFontRom(opcode - 18)