sim

commit 095ed2427f56c6876951af58fa745a308d13cd8b
Author: ssnf <ssnf@ssnf.xyz>
Date:   Tue, 22 Jun 2021 16:29:36 +0000

initial commit

Diffstat:
A
.gitignore
 | 
2
++
A
Makefile
 | 
15
+++++++++++++++
A
posix.c
 | 
25
+++++++++++++++++++++++++
A
sim.c
 | 
43
+++++++++++++++++++++++++++++++++++++++++++
A
sim.h
 | 
12
++++++++++++

5 files changed, 97 insertions(+), 0 deletions(-)
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,2 @@
+sim
+*.o
diff --git a/Makefile b/Makefile
@@ -0,0 +1,15 @@
+CC      = c89
+CFLAGS  = -Os -Wall -Wpedantic -Wno-deprecated-declarations
+SRC     = ${wildcard *.c}
+OBJ     = ${SRC:.c=.o}
+
+all: sim
+
+sim: ${OBJ}
+	${CC} ${OBJ} -o $@
+
+%.o: %.c
+	${CC} ${CFLAGS} -c $< -o $@
+
+clean:
+	rm -f sim *.o
diff --git a/posix.c b/posix.c
@@ -0,0 +1,25 @@
+#include <stdio.h>
+#include <termios.h>
+
+void raw_init();
+void raw_end();
+
+static struct termios initial_state;
+
+void
+raw_init()
+{
+	struct termios raw_state;
+
+	tcgetattr(0, &initial_state);
+	raw_state = initial_state;
+	raw_state.c_lflag &= ~(ECHO|ICANON|ISIG);
+	tcsetattr(0, TCSAFLUSH, &raw_state);
+	setbuf(stdout, NULL);
+}
+
+void
+raw_end()
+{
+	tcsetattr(0, TCSAFLUSH, &initial_state);
+}
diff --git a/sim.c b/sim.c
@@ -0,0 +1,43 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "sim.h"
+
+void file_open(char* name);
+
+char* file;
+
+void
+file_open(char* name)
+{
+	FILE* f;
+	ulong l;
+
+	f = fopen(name, "r");
+	fseek(f, 0, SEEK_END);
+	l = ftell(f);
+	fseek(f, 0, SEEK_SET);
+	file = malloc(l);
+	fread(file, l, 1, f);
+	fclose(f);
+}
+
+
+int
+main()
+{
+	char a[16];
+	uint i, j;
+	ushort wx, wy;
+
+	raw_init();
+	file_open("sim.c");
+	printf(CSRMAX DSR);
+	for (i = 0; fread(a + i, 1, 1, stdin), a[i] != '\x1b'; ++i); /*buffer the input, or expect hell*/
+	for (j = i; fread(a + j, 1, 1, stdin), a[j++] != 'R';);
+	sscanf(a + i, "[%hu;%huR", &wy, &wx);
+	printf(ED CSI "%hu;H", wy/2);
+	puts(file);
+	raw_end();
+	return 0;
+}
diff --git a/sim.h b/sim.h
@@ -0,0 +1,12 @@
+#define ED "\x1b[2J"
+#define DSR "\x1b[6n"
+#define CSRMAX "\x1b[999C\x1b[999B"
+#define CSI "\x1b["
+
+typedef unsigned char uchar;
+typedef unsigned int uint;
+typedef unsigned short ushort;
+typedef unsigned long ulong;
+
+void raw_init();
+void raw_end();