move stuff around and create initial source structure

1 files changed, 40 insertions, 0 deletions

diff --git a/src/emu/riscas.c b/src/emu/riscas.c
new file mode 100644
index 0000000..e4180b2
--- /dev/null
+++ b/src/emu/riscas.c
@@ -0,0 +1,40 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#include "asm.h"
+#include "log.h"
+
+static
+void usage(int rc)
+{
+	fprintf(stderr, "Usage: riscas <source> <program>\n");
+	exit(rc);
+}
+
+int main(int argc, char *argv[])
+{
+	if (argc < 3) {
+		usage(EXIT_FAILURE);
+	}
+
+	FILE *sfd;
+	if ((sfd = fopen(argv[1], "r")) == NULL)
+		pdie("could not open source %s", argv[1]);
+
+	FILE *pfd;
+	if ((pfd = fopen(argv[2], "w")) == NULL)
+		pdie("could not open program %s", argv[2]);
+
+	char line[128];
+	while (fgets(line, 128, sfd)) {
+		uint32_t IR = compile(line);
+
+		if (IR == 0xFFFFFFFF)
+			die("illegal instruction: %s", line);
+
+		fwrite(&IR, sizeof(uint32_t), 1, pfd);
+	}
+
+	return 0;
+}