testing and unfinished changes to main

.vscode/c_cpp_properties.json

@@ -1,16 +1,24 @@
 {
     "configurations": [
         {
-            "name": "Linux",
+            "name": "nspire",
             "includePath": [
-                "${workspaceFolder}/**",
+                "/home/franchioping/NSpire/Nespire/**",
                 "/home/franchioping/NSpire/Ndless/ndless-sdk/include/*"
             ],
             "defines": [],
-            "compilerPath": "/usr/bin/clang",
+            "compilerPath": "/home/franchioping/NSpire/Ndless/ndless-sdk/bin/nspire-gcc",
             "cStandard": "c17",
             "cppStandard": "c++17",
-            "intelliSenseMode": "linux-gcc-arm"
+            "compilerPathInCppPropertiesJson": "/home/franchioping/NSpire/Ndless/ndless-sdk/bin/nspire-gcc",
+            "mergeConfigurations": false,
+            "browse": {
+                "path": [
+                    "/home/franchioping/NSpire/Ndless/ndless-sdk/include/*",
+                    "${workspaceFolder}"
+                ],
+                "limitSymbolsToIncludedHeaders": true
+            }
         }
     ],
     "version": 4

.vscode/settings.json

@@ -1,3 +1,7 @@
 {
-    "makefile.makefilePath": ""
+    "makefile.makefilePath": "",
+    "files.associations": {
+        "platform-nspire.h": "c",
+        "*.inc": "c"
+    }
 }

source/.buildver

@@ -0,0 +1 @@
+4

source/Makefile

@@ -1,22 +1,60 @@
-PREFIX=nspire-
+DEBUG = FALSE
 
-all: nes_emu.tns clean_p
-	@echo DONE
+BLD_FILE ?= .buildver                                                          
 
-nes_emu.tns : nespire.elf
-	genzehn --input $< --output $@ --name "nes_emu"
-	make-prg $@ ./nes_emu.prg.tns
+# Initiate BLD_FILE if not exists                                              
+buildver_create := $(shell if ! test -f $(BLD_FILE); then echo 0 > $(BLD_FILE); fi)
 
-nespire.elf : main.o cpu.o debug.o memory.o ppu.o rom.o menu.o
-	$(PREFIX)ld main.o cpu.o debug.o memory.o ppu.o rom.o menu.o -o $@
+# Prepare callable function. This function updates BLD_FILE
+buildver = $(shell echo $$(($$(cat $(BLD_FILE)) + 1)) > $(BLD_FILE))
 
-%.o : %.S
-	$(PREFIX)gcc  -Wall -W -marm -Os -c $< -o $@
+VER = buildver
+
+GCC = nspire-gcc
+AS  = nspire-as
+GXX = nspire-g++
+LD  = nspire-ld
+GENZEHN = genzehn
+
+EXE = nespire$(shell cat $(BLD_FILE))
 
 
-clean_p: 
-	@rm -f *.o nespire.elf
+GCCFLAGS = -Wall -W -marm
+LDFLAGS =
+ZEHNFLAGS = --name "$(EXE)"
+
+ifeq ($(DEBUG),FALSE)
+	GCCFLAGS += -Os
+else
+	GCCFLAGS += -O0 -g
+endif
+
+OBJS = $(patsubst %.c, %.o, $(shell find . -name \*.c))
+OBJS += $(patsubst %.cpp, %.o, $(shell find . -name \*.cpp))
+OBJS += $(patsubst %.S, %.o, $(shell find . -name \*.S))
+DISTDIR = builds
 
 
-clean: clean_p
-	@rm -f nes_emu.tns nes_emu.prg.tns
+all:$(DISTDIR)/$(EXE).tns
+
+%.o: %.c
+	$(GCC) $(GCCFLAGS) -c $< -o $@
+
+%.o: %.cpp
+	$(GXX) $(GCCFLAGS) -c $< -o $@
+	
+%.o: %.S
+	$(AS) -c $< -o $@
+
+$(DISTDIR)/$(EXE).elf: $(OBJS)
+	mkdir -p $(DISTDIR)
+	$(LD) $^ -o $@ $(LDFLAGS)
+
+$(DISTDIR)/$(EXE).tns: $(DISTDIR)/$(EXE).elf
+	$(GENZEHN) --input $^ --output $@.zehn $(ZEHNFLAGS)
+	$(call buildver)
+	make-prg $@.zehn $@
+	rm $@.zehn
+
+clean:
+	rm -f $(OBJS) 

source/main.S

@@ -373,6 +373,8 @@ touchpad_read_input:
 
 	.pool
 
+.extern write_save_state
+
 save_state:
     str lr, saved_state_cpu_status+56
     adr lr, saved_state_cpu_status
@@ -392,8 +394,11 @@ save_state:
     cmp r1, #0
     bne sstate_loop
 
-    mov r0, #1
-    str r0, save_state_exists
+
+
+	mov r0, saved_state_cpu_status
+	str r1, saved_state_cpu_cpsr
+	bl write_save_state
 
     ldr lr, saved_state_cpu_status+56 // subroutine return
 

source/save_state.c

@@ -0,0 +1,25 @@
+#include <stdint.h>
+#include <stdlib.h>
+#include <libndls.h>
+#include <stdio.h>
+
+
+#define s_SIZE                  0x4600;
+
+void write_save_state(uint32_t saved_state_cpu_status_addr, uint32_t saved_state_cpu_cpsr);
+
+void write_save_state(uint32_t saved_state_cpu_status_addr, uint32_t saved_state_cpu_cpsr){
+    size_t lenght = s_SIZE;
+
+    size_t data_size = s_SIZE + sizeof(uint32_t);
+    uint32_t *data = malloc(data_size);
+
+
+    memcpy(data, saved_state_cpu_status_addr, lenght);
+
+    data[data_size-1] = saved_state_cpu_cpsr;
+
+    FILE* savefile = fopen("/documents/ndless/test.tns", "wb");
+    fwrite(data, data_size, 1, savefile);
+    fclose(savefile);
+}

testing/.buildver

@@ -1 +1 @@
-6
+10

testing/Makefile

@@ -32,11 +32,10 @@ endif
 OBJS = $(patsubst %.c, %.o, $(shell find . -name \*.c))
 OBJS += $(patsubst %.cpp, %.o, $(shell find . -name \*.cpp))
 OBJS += $(patsubst %.S, %.o, $(shell find . -name \*.S))
-DISTDIR = .
-vpath %.tns $(DISTDIR)
-vpath %.elf $(DISTDIR)
+DISTDIR = builds
 
-all: $(EXE).tns
+
+all:$(DISTDIR)/$(EXE).tns
 
 %.o: %.c
 	$(GCC) $(GCCFLAGS) -c $< -o $@
@@ -47,15 +46,15 @@ all: $(EXE).tns
 %.o: %.S
 	$(AS) -c $< -o $@
 
-$(EXE).elf: $(OBJS)
+$(DISTDIR)/$(EXE).elf: $(OBJS)
 	mkdir -p $(DISTDIR)
 	$(LD) $^ -o $@ $(LDFLAGS)
 
-$(EXE).tns: $(EXE).elf
+$(DISTDIR)/$(EXE).tns: $(DISTDIR)/$(EXE).elf
 	$(GENZEHN) --input $^ --output $@.zehn $(ZEHNFLAGS)
 	$(call buildver)
 	make-prg $@.zehn $@
 	rm $@.zehn
 
 clean:
-	rm -f $(OBJS) $(DISTDIR)/$(EXE).tns $(DISTDIR)/$(EXE).elf $(DISTDIR)/$(EXE).zehn nespire_mod_*.elf nespire_mod_*.tns
+	rm -f $(OBJS) 

testing/util.c

@@ -1,22 +1,24 @@
-#include <stdio.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <dirent.h>
+#include <nspireio/nspireio.h>
 #include <libndls.h>
+#include <nspireio/platform-nspire.h>
 
-void util_stuff();
+void util_stuff(int argc, char **argv);
 
 
-int KEYS_TO_QUIT = 2;
+void util_stuff(int argc, char **argv){
 
-void util_stuff(){
-
-    printf("Hello World!\n");
-    puts("TEST");
-
-
-    for(int i = 0; i < KEYS_TO_QUIT; i++){
-        wait_key_pressed();
+    // init console
+    nio_console console;
+    nio_init(&console, NIO_MAX_COLS , NIO_MAX_ROWS, 0, 0, NIO_COLOR_BLACK, NIO_COLOR_WHITE, true);
+    nio_set_default(&console);
+    nio_printf("test\n");
+    nio_printf("argc: %d\n", argc);
+    for(int i = 0; i < argc; i++){
+        nio_printf("arg %d: %s\n", i, argv[i]);
     }
+
+    wait_key_pressed();
     return;
-}
+}
+
+