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3ds stuff

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This commit is contained in:
Andrew Glaze
2025-12-06 20:02:18 -05:00
parent a7cc6ebdb4
commit 31100a8daf
7 changed files with 392 additions and 105 deletions
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5
day01/.gitignore vendored
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@@ -6,3 +6,8 @@ DerivedData/
.swiftpm/configuration/registries.json .swiftpm/configuration/registries.json
.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata .swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
.netrc .netrc
build/
*.3dsx
*.elf
*.smdh

246
day01/Makefile Normal file
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@@ -0,0 +1,246 @@
#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------
ifeq ($(strip $(DEVKITARM)),)
$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
endif
TOPDIR ?= $(CURDIR)
include $(DEVKITARM)/3ds_rules
#---------------------------------------------------------------------------------
# TARGET is the name of the output
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# DATA is a list of directories containing data files
# INCLUDES is a list of directories containing header files
# GRAPHICS is a list of directories containing graphics files
# GFXBUILD is the directory where converted graphics files will be placed
# If set to $(BUILD), it will statically link in the converted
# files as if they were data files.
#
# NO_SMDH: if set to anything, no SMDH file is generated.
# ROMFS is the directory which contains the RomFS, relative to the Makefile (Optional)
# APP_TITLE is the name of the app stored in the SMDH file (Optional)
# APP_DESCRIPTION is the description of the app stored in the SMDH file (Optional)
# APP_AUTHOR is the author of the app stored in the SMDH file (Optional)
# ICON is the filename of the icon (.png), relative to the project folder.
# If not set, it attempts to use one of the following (in this order):
# - <Project name>.png
# - icon.png
# - <libctru folder>/default_icon.png
#---------------------------------------------------------------------------------
TARGET := $(notdir $(CURDIR))
BUILD := build
SOURCES := source
DATA := data
INCLUDES := include
GRAPHICS := gfx
GFXBUILD := $(BUILD)
#ROMFS := romfs
#GFXBUILD := $(ROMFS)/gfx
APP_TITLE := Hello Swift
APP_DESCRIPTION := Built with Embedded Swift, devkitARM & libctru
APP_AUTHOR := Dmitry Serov
#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH := -march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft
# There used to be -mword-allocations here but swiftc doesn't like it
# I removed it and it works but may break something later...
CFLAGS := -g -Wall -O2 \
-ffunction-sections \
$(ARCH)
CFLAGS += $(INCLUDE) -D__3DS__
CXXFLAGS := $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++11
ASFLAGS := -g $(ARCH)
LDFLAGS = -specs=3dsx.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)
LIBS := -lctru -lm
#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS := $(CTRULIB)
#---------------------------------------------------------------------------------
# swift-specific bits
#---------------------------------------------------------------------------------
SWIFTC := ~/.local/share/swiftly/bin/swiftc
SWIFTFLAGS := -wmo -parse-as-library -enable-experimental-feature Embedded \
-target armv6-none-none-eabi -import-objc-header ../$(INCLUDES)/BridgingHeader.h \
-I $(DEVKITPRO)/devkitARM/include -I $(DEVKITPRO)/devkitARM/arm-none-eabi/include
%.o: %.swift
@echo $(notdir $<)
$(ADD_COMPILE_COMMAND) add $(SWIFTC) $(SWIFTFLAGS) "$(addprefix -Xcc , $(C_FLAGS)) -c $< -o $@" $<
$(SILENTCMD)$(SWIFTC) $(SWIFTFLAGS) $(addprefix -Xcc , $(CFLAGS)) -c $< -o $@ $(ERROR_FILTER)
#---------------------------------------------------------------------------------
# no real need to edit anything past this point unless you need to add additional
# rules for different file extensions
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------
export OUTPUT := $(CURDIR)/$(TARGET)
export TOPDIR := $(CURDIR)
export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
$(foreach dir,$(GRAPHICS),$(CURDIR)/$(dir)) \
$(foreach dir,$(DATA),$(CURDIR)/$(dir))
export DEPSDIR := $(CURDIR)/$(BUILD)
CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
SWIFTFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.swift)))
PICAFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.v.pica)))
SHLISTFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.shlist)))
GFXFILES := $(foreach dir,$(GRAPHICS),$(notdir $(wildcard $(dir)/*.t3s)))
BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
ifeq ($(strip $(CPPFILES)),)
#---------------------------------------------------------------------------------
export LD := $(CC)
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
export LD := $(CXX)
#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------
#---------------------------------------------------------------------------------
ifeq ($(GFXBUILD),$(BUILD))
#---------------------------------------------------------------------------------
export T3XFILES := $(GFXFILES:.t3s=.t3x)
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
export ROMFS_T3XFILES := $(patsubst %.t3s, $(GFXBUILD)/%.t3x, $(GFXFILES))
export T3XHFILES := $(patsubst %.t3s, $(BUILD)/%.h, $(GFXFILES))
#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------
export OFILES_SOURCES := $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o) $(SWIFTFILES:.swift=.o)
export OFILES_BIN := $(addsuffix .o,$(BINFILES)) \
$(PICAFILES:.v.pica=.shbin.o) $(SHLISTFILES:.shlist=.shbin.o) \
$(addsuffix .o,$(T3XFILES))
export OFILES := $(OFILES_BIN) $(OFILES_SOURCES)
export HFILES := $(PICAFILES:.v.pica=_shbin.h) $(SHLISTFILES:.shlist=_shbin.h) \
$(addsuffix .h,$(subst .,_,$(BINFILES))) \
$(GFXFILES:.t3s=.h)
export INCLUDE := $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
-I$(CURDIR)/$(BUILD)
export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib)
export _3DSXDEPS := $(if $(NO_SMDH),,$(OUTPUT).smdh)
ifeq ($(strip $(ICON)),)
icons := $(wildcard *.png)
ifneq (,$(findstring $(TARGET).png,$(icons)))
export APP_ICON := $(TOPDIR)/$(TARGET).png
else
ifneq (,$(findstring icon.png,$(icons)))
export APP_ICON := $(TOPDIR)/icon.png
endif
endif
else
export APP_ICON := $(TOPDIR)/$(ICON)
endif
ifeq ($(strip $(NO_SMDH)),)
export _3DSXFLAGS += --smdh=$(CURDIR)/$(TARGET).smdh
endif
ifneq ($(ROMFS),)
export _3DSXFLAGS += --romfs=$(CURDIR)/$(ROMFS)
endif
.PHONY: all clean
#---------------------------------------------------------------------------------
all: $(BUILD) $(GFXBUILD) $(DEPSDIR) $(ROMFS_T3XFILES) $(T3XHFILES)
@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
$(BUILD):
@mkdir -p $@
ifneq ($(GFXBUILD),$(BUILD))
$(GFXBUILD):
@mkdir -p $@
endif
ifneq ($(DEPSDIR),$(BUILD))
$(DEPSDIR):
@mkdir -p $@
endif
#---------------------------------------------------------------------------------
clean:
@echo clean ...
@rm -fr $(BUILD) $(TARGET).3dsx $(OUTPUT).smdh $(TARGET).elf $(GFXBUILD)
#---------------------------------------------------------------------------------
$(GFXBUILD)/%.t3x $(BUILD)/%.h : %.t3s
#---------------------------------------------------------------------------------
@echo $(notdir $<)
@tex3ds -i $< -H $(BUILD)/$*.h -d $(DEPSDIR)/$*.d -o $(GFXBUILD)/$*.t3x
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
$(OUTPUT).3dsx : $(OUTPUT).elf $(_3DSXDEPS)
$(OFILES_SOURCES) : $(HFILES)
$(OUTPUT).elf : $(OFILES)
#---------------------------------------------------------------------------------
# you need a rule like this for each extension you use as binary data
#---------------------------------------------------------------------------------
%.bin.o %_bin.h : %.bin
#---------------------------------------------------------------------------------
@echo $(notdir $<)
@$(bin2o)
#---------------------------------------------------------------------------------
.PRECIOUS : %.t3x %.shbin
#---------------------------------------------------------------------------------
%.t3x.o %_t3x.h : %.t3x
#---------------------------------------------------------------------------------
$(SILENTMSG) $(notdir $<)
$(bin2o)
#---------------------------------------------------------------------------------
%.shbin.o %_shbin.h : %.shbin
#---------------------------------------------------------------------------------
$(SILENTMSG) $(notdir $<)
$(bin2o)
-include $(DEPSDIR)/*.d
#---------------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------------

15
day01/Package.swift
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@@ -1,15 +0,0 @@
// swift-tools-version: 6.2
// The swift-tools-version declares the minimum version of Swift required to build this package.
import PackageDescription
let package = Package(
name: "day01",
targets: [
// Targets are the basic building blocks of a package, defining a module or a test suite.
// Targets can depend on other targets in this package and products from dependencies.
.executableTarget(
name: "day01"
),
]
)

90
day01/Sources/day01/day01.swift
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@@ -1,90 +0,0 @@
// The Swift Programming Language
// https://docs.swift.org/swift-book
@main
struct day01 {
static func parseInput(_ input: [StaticString]) -> [(Direction, Int)] {
input.map({ line in
let turns = line.withUTF8Buffer { tmp in
atoi(str: [UInt8](tmp.dropFirst()))
}
return (Direction(line.utf8Start[0]), turns)
})
}
static func part1(_ input: [(Direction, Int)]) {
var cur = 50
var count = 0
for (dir, num) in input {
cur = switch dir {
case .Left: (cur - num) % 100
case .Right: (cur + num) % 100
}
if (cur < 0) { cur += 100 }
if (cur == 0) { count += 1 }
}
print("Part 1: \(count)")
}
static func part2(_ input: [(Direction, Int)]) {
var cur = 50
var count = 0
for (dir, num) in input {
let start = cur
let fullCycles = num - (num % 100)
count += fullCycles / 100
cur = switch dir {
case .Left: (cur - num) % 100
case .Right: (cur + num) % 100
}
if (cur < 0) { cur += 100 }
switch dir {
case .Left:
if (start - (num % 100)) < 0 && start != 0 {
count += 1
}
case .Right:
if (start + (num % 100)) >= 100 && start != 0 && cur != 0 {
count += 1
}
}
if (cur == 0) { count += 1 }
}
print("Part 2: \(count)")
}
static func main() {
let parsed = parseInput(realInput)
part1(parsed)
part2(parsed)
}
static func atoi(str: [UInt8]) -> Int {
var result = 0
for char in str {
if char >= 0x30 && char <= 0x39 {
result = result * 10 + (Int(char) - 0x30)
} else {
break
}
}
return result
}
}
enum Direction {
case Left
case Right
init(_ char: UInt8) {
self = switch char {
case 0x4c: Direction.Left
case 0x52: Direction.Right
default: fatalError()
}
}
}

7
day01/include/BridgingHeader.h Normal file
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@@ -0,0 +1,7 @@
#include <3ds.h>
#include <stdio.h>
static inline void gspWaitForVBlankWrapper(void) {
gspWaitForVBlank();
}

116
day01/Sources/day01/input.swift → day01/source/day01.swift
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@@ -1,3 +1,119 @@
@main
struct Day01 {
static func main() {
gfxInitDefault()
consoleInit(GFX_TOP, nil)
let parsed = parseInput(realInput)
//print("\(parsed[0].0.rawValue) \(parsed[0].1)")
part1(parsed)
part2(parsed)
// Main loop
while aptMainLoop() {
// Scan all the inputs. This should be done once for each frame
hidScanInput()
// hidKeysDown returns information about which buttons have been just pressed (and they weren't in the previous frame)
let kDown = hidKeysDown()
if kDown & KEY_START != 0 {
break // break in order to return to hbmenu
}
// Flush and swap framebuffers
gfxFlushBuffers()
gfxSwapBuffers()
// Wait for VBlank
gspWaitForVBlankWrapper()
}
gfxExit()
}
static func parseInput(_ input: [StaticString]) -> [(Direction, Int)] {
input.map({ line in
let turns = line.withUTF8Buffer { tmp in
atoi(str: [UInt8](tmp.dropFirst()))
}
return (Direction(line.utf8Start[0]), turns)
})
}
static func part1(_ input: [(Direction, Int)]) {
var cur = 50
var count = 0
for (dir, num) in input {
cur = switch dir {
case .Left: (cur - num) % 100
case .Right: (cur + num) % 100
}
if (cur < 0) { cur += 100 }
if (cur == 0) { count += 1 }
}
print("Part 1: \(count)")
}
static func part2(_ input: [(Direction, Int)]) {
var cur = 50
var count = 0
for (dir, num) in input {
let start = cur
let fullCycles = num - (num % 100)
count += fullCycles / 100
cur = switch dir {
case .Left: (cur - num) % 100
case .Right: (cur + num) % 100
}
if (cur < 0) { cur += 100 }
switch dir {
case .Left:
if (start - (num % 100)) < 0 && start != 0 {
count += 1
}
case .Right:
if (start + (num % 100)) >= 100 && start != 0 && cur != 0 {
count += 1
}
}
if (cur == 0) { count += 1 }
}
print("Part 2: \(count)")
}
static func atoi(str: [UInt8]) -> Int {
var result = 0
for char in str {
if char >= 0x30 && char <= 0x39 {
result = result * 10 + (Int(char) - 0x30)
} else {
break
}
}
return result
}
}
enum Direction: Int {
case Left = 0
case Right = 1
init(_ char: UInt8) {
self = switch char {
case 0x4c: Direction.Left
case 0x52: Direction.Right
default: fatalError()
}
}
}
public let testInput: [StaticString] = [ public let testInput: [StaticString] = [
"L68", "L68",
"L30", "L30",

18
day01/source/shims.c Normal file
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@@ -0,0 +1,18 @@
#include <stdlib.h>
#include <malloc.h>
#include <errno.h>
int posix_memalign(void **res, size_t align, size_t len) {
if (align < sizeof(void *)) return 22;
void *mem = memalign(align, len);
if (!mem) return errno;
*res = mem;
return 0;
}
int getentropy(void *buffer, size_t length) {
for (int i = 0; i < length; i++) {
((int*)buffer)[i] = rand();
}
return 0;
}