Break console io example out into own app

apps/Makefile

@@ -4,6 +4,7 @@ all:
 	docker build -t ${DOCKER_IMAGE} .
 	(cd sketch && make)
 	(cd helloworld && make)
+	(cd conio && make)
 	(cd zig-mandel && make)
 	(cd zigtris && make)
 	(cd rust-hello && make)
@@ -12,6 +13,7 @@ all:
 clean:
 	(cd sketch && make clean)
 	(cd helloworld && make clean)
+	(cd conio && make clean)
 	(cd zig-mandel && make clean)
 	(cd zigtris && make clean)
 	(cd rust-hello && make clean)

apps/conio/Makefile

@@ -0,0 +1,27 @@
+PROJECT:=conio
+
+DOCKER_IMAGE=riscv-dev
+DOCKER_CMD:=docker run --rm -v ${PWD}../../../:/data -w /data/apps/${PROJECT} ${DOCKER_IMAGE}
+PREFIX:=${DOCKER_CMD} riscv64-unknown-elf-
+CFLAGS+=-I../../common
+CFLAGS+=-fno-stack-protector
+CFLAGS+=-static-libgcc -fdata-sections -ffunction-sections
+CFLAGS+=-g -Os -march=rv32ima_zicsr -mabi=ilp32 -static
+LDFLAGS:= -T ../linker.ld -nostdlib -Wl,--gc-sections
+LIBS:= #-lgcc # needed for softfp
+
+SRCS=${PROJECT}.c ../crt0.S
+
+all:
+	${PREFIX}gcc -o ${PROJECT}.elf ${CFLAGS} ${LDFLAGS} ${SRCS} ${LIBS}
+	$(PREFIX)objcopy ${PROJECT}.elf -O binary ${PROJECT}.bin
+
+disasm: all
+	$(PREFIX)objdump -S -d -f ${PROJECT}.elf
+
+test: all
+	../../host/host ${PWD}/${PROJECT}.bin
+
+clean:
+	rm -f ${PROJECT}.o ${PROJECT}.elf ${PROJECT}.bin
+

apps/conio/conio.c

@@ -0,0 +1,15 @@
+#define USE_MAIN
+#include "uvm32_target.h"
+
+void main(void) {
+    uint32_t c;
+    println("Press a key!");
+    while(c = getc()) {
+        if (c != 0xFFFFFFFF) {
+            print("Got: ");
+            printx(c);
+            println("");
+        }
+    }
+}
+

apps/helloworld/helloworld.c

@@ -5,15 +5,5 @@ void main(void) {
     for (int i=0;i<10;i++) {
         printd(i);
     }
-#if 0
-    uint32_t c;
-    while(c = getc()) {
-        if (c != 0xFFFFFFFF) {
-            print("Got: ");
-            printx(c);
-            println("");
-        }
-    }
-#endif
 }