[turbine,nostalgia] Make memory regions cast to bounded ox::Arrays

deps/teagba/include/teagba/addresses.hpp

@@ -5,6 +5,8 @@
 #pragma once
 
 #include <ox/std/array.hpp>
+#include <ox/std/span.hpp>
+#include <ox/std/units.hpp>
 #include <ox/std/types.hpp>
 
 /////////////////////////////////////////////////////////////////
@@ -49,7 +51,7 @@ using BgCtl = uint16_t;
 #define REG_BG3CTL *reinterpret_cast<volatile BgCtl*>(0x0400'000e)
 
 [[nodiscard]]
-inline volatile BgCtl &regBgCtl(uintptr_t bgIdx) noexcept {
+inline volatile BgCtl &regBgCtl(uintptr_t const bgIdx) noexcept {
 	return *reinterpret_cast<volatile BgCtl*>(0x0400'0008 + 2 * bgIdx);
 }
 
@@ -60,7 +62,7 @@ inline volatile BgCtl &regBgCtl(uintptr_t bgIdx) noexcept {
 #define REG_BG3HOFS *reinterpret_cast<volatile uint32_t*>(0x0400'001c)
 
 [[nodiscard]]
-inline volatile uint32_t &regBgHofs(auto bgIdx) noexcept {
+volatile uint32_t &regBgHofs(auto const bgIdx) noexcept {
 	return *reinterpret_cast<volatile uint32_t*>(0x0400'0010 + 4 * bgIdx);
 }
 
@@ -71,7 +73,7 @@ inline volatile uint32_t &regBgHofs(auto bgIdx) noexcept {
 #define REG_BG3VOFS *reinterpret_cast<volatile uint32_t*>(0x0400'001e)
 
 [[nodiscard]]
-inline volatile uint32_t &regBgVofs(auto bgIdx) noexcept {
+volatile uint32_t &regBgVofs(auto const bgIdx) noexcept {
 	return *reinterpret_cast<volatile uint32_t*>(0x0400'0012 + 4 * bgIdx);
 }
 
@@ -83,25 +85,23 @@ inline volatile uint32_t &regBgVofs(auto bgIdx) noexcept {
 /////////////////////////////////////////////////////////////////
 // Memory Addresses
 
-#define MEM_EWRAM_BEGIN reinterpret_cast<uint8_t*>(0x0200'0000)
-#define MEM_EWRAM_END   reinterpret_cast<uint8_t*>(0x0203'FFFF)
+#define MEM_EWRAM (*reinterpret_cast<ox::Array<uint16_t, 0x0203'FFFF - 0x0200'0000>*>(0x0200'0000))
 
-#define MEM_IWRAM_BEGIN reinterpret_cast<uint8_t*>(0x0300'0000)
-#define MEM_IWRAM_END   reinterpret_cast<uint8_t*>(0x0300'7FFF)
+#define MEM_IWRAM (*reinterpret_cast<ox::Array<uint8_t, 0x0300'7FFF - 0x0300'0000>*>(0x0300'0000))
 
 #define REG_BLNDCTL *reinterpret_cast<uint16_t*>(0x0400'0050)
 
-#define MEM_BG_PALETTE reinterpret_cast<uint16_t*>(0x0500'0000)
-#define MEM_SPRITE_PALETTE reinterpret_cast<uint16_t*>(0x0500'0200)
+using Palette = ox::Array<uint16_t, 128>;
+#define MEM_BG_PALETTE (*reinterpret_cast<::Palette*>(0x0500'0000))
+#define MEM_SPRITE_PALETTE (*reinterpret_cast<::Palette*>(0x0500'0200))
 
 using BgMapTile = ox::Array<uint16_t, 8192>;
-#define MEM_BG_TILES reinterpret_cast<BgMapTile*>(0x0600'0000)
-#define MEM_BG_MAP reinterpret_cast<BgMapTile*>(0x0600'e000)
+#define MEM_BG_TILES (*reinterpret_cast<ox::Array<BgMapTile, 4>*>(0x0600'0000))
+#define MEM_BG_MAP (*reinterpret_cast<ox::Array<BgMapTile, 4>*>(0x0600'e000))
 
-#define MEM_SPRITE_TILES reinterpret_cast<uint16_t*>(0x0601'0000)
-#define MEM_OAM reinterpret_cast<uint64_t*>(0x0700'0000)
+#define MEM_SPRITE_TILES (*reinterpret_cast<ox::Array<uint16_t, 32 * ox::units::KB>*>(0x0601'0000))
+#define MEM_OAM (*reinterpret_cast<ox::Array<uint64_t, 64>*>(0x0700'0000))
 
-#define MEM_ROM reinterpret_cast<char*>(0x0800'0000)
+#define MEM_ROM (*reinterpret_cast<ox::Array<char, 32 * ox::units::MB>*>(0x0700'0000))
 
-#define MEM_SRAM reinterpret_cast<char*>(0x0e00'0000)
-#define MEM_SRAM_SIZE 65535
+#define MEM_SRAM (*reinterpret_cast<ox::Array<char, 64 * ox::units::KB>*>(0x0e00'0000))

src/nostalgia/modules/gfx/src/gfx-gba.cpp

@@ -35,11 +35,6 @@ class Context {
 		Context(Context const &&other) noexcept = delete;
 		virtual ~Context() noexcept = default;
 
-		[[nodiscard]]
-		ox::MemFS const &rom() const noexcept {
-			return static_cast<ox::MemFS const&>(*turbine::rom(turbineCtx));
-		}
-
 };
 
 void safeDelete(Context *ctx) noexcept {
@@ -81,7 +76,7 @@ ox::Error loadBgPalette(
 	if (palette.pages.empty()) {
 		return {};
 	}
-	auto const paletteMem = MEM_BG_PALETTE + palBank * 16;
+	auto const paletteMem = ox::Span{MEM_BG_PALETTE} + palBank * 16;
 	for (auto i = 0u; i < colorCnt(palette, page); ++i) {
 		paletteMem[i] = color(palette, page, i);
 	}
@@ -95,9 +90,8 @@ ox::Error loadSpritePalette(
 	if (palette.pages.empty()) {
 		return {};
 	}
-	auto const paletteMem = MEM_SPRITE_PALETTE;
 	for (auto i = 0u; i < colorCnt(palette, page); ++i) {
-		paletteMem[i] = color(palette, page, i);
+		MEM_SPRITE_PALETTE[i] = color(palette, page, i);
 	}
 	return {};
 }
@@ -240,7 +234,7 @@ ox::Error loadSpriteTileSheet(
 		Context &ctx,
 		TileSheetSet const &set) noexcept {
 	auto const bpp = static_cast<unsigned>(set.bpp);
-	OX_RETURN_ERROR(loadTileSheetSet(ctx, {MEM_SPRITE_TILES, 32 * ox::units::KB}, set));
+	OX_RETURN_ERROR(loadTileSheetSet(ctx, MEM_SPRITE_TILES, set));
 	setSpritesBpp(bpp);
 	return {};
 }
@@ -349,9 +343,9 @@ void panic(char const *file, int line, char const *panicMsg, ox::Error const &er
 	using namespace nostalgia::gfx;
 	// reset heap to make sure we have enough memory to allocate context data
 	OX_ALLOW_UNSAFE_BUFFERS_BEGIN
-	auto const heapBegin = reinterpret_cast<char*>(MEM_EWRAM_BEGIN);
-	auto const heapSz = (MEM_EWRAM_END - MEM_EWRAM_BEGIN) / 2;
-	auto const heapEnd = reinterpret_cast<char*>(MEM_EWRAM_BEGIN + heapSz);
+	auto const heapBegin = reinterpret_cast<char*>(MEM_EWRAM.data());
+	auto const heapSz = MEM_EWRAM.size() / 2;
+	auto const heapEnd = reinterpret_cast<char*>(MEM_EWRAM.data() + heapSz);
 	ox::heapmgr::initHeap(heapBegin, heapEnd);
 	OX_ALLOW_UNSAFE_BUFFERS_END
 	auto tctx = turbine::init(keel::loadRomFs("").unwrap(), "Nostalgia").unwrap();

src/olympic/turbine/src/gba/turbine.cpp

@@ -50,7 +50,7 @@ OX_ALLOW_UNSAFE_BUFFERS_BEGIN
 	constexpr auto headerP1Len = ox::strlen(headerP2);
 	constexpr auto headerP2Len = ox::strlen(headerP1);
 	constexpr auto headerLen = headerP1Len + headerP2Len;
-	for (auto current = MEM_ROM; current < reinterpret_cast<char*>(0x0a000000); current += headerLen) {
+	for (auto current = MEM_ROM.data(); current < reinterpret_cast<char*>(0x0a000000); current += headerLen) {
 		if (memcmp(current, headerP1, headerP1Len) == 0 &&
 		    memcmp(current + headerP1Len, headerP2, headerP2Len) == 0) {
 			return reinterpret_cast<std::size_t>(current + headerLen);