X-Git-Url: http://4ch.mooo.com/gitweb/?a=blobdiff_plain;f=src%2FFTEST.C;fp=src%2FFTEST.C;h=5f7efa80b24c62e0069d1d8bbf0e5e495cc9a0f8;hb=077782026074116470d9637507d988ffcc29ef58;hp=0000000000000000000000000000000000000000;hpb=0a685a71db0f60421bf68f4917a7ddd674ee872a;p=16.git

diff --git a/src/FTEST.C b/src/FTEST.C
new file mode 100644
index 00000000..5f7efa80
--- /dev/null
+++ b/src/FTEST.C
@@ -0,0 +1,56 @@
+#include <stdio.h>
+#include "lib/types.h"
+#include "lib/text.h"
+
+main() {
+    int i;
+    int j;
+    char l[16];
+    char c;
+    word s, o;
+    word addr = (word) l;
+    textInit();
+
+    //print the addresses of the fonts
+    printf("ROM FONT Addresses\n");
+    for(i=0; i<4; i++) {
+	printf("%d: %x:%x\n", i, romFonts[i].seg, romFonts[i].off);
+    }
+
+    printf("Character: ");
+    scanf("%c", &c);
+
+    s=romFonts[ROM_FONT_8x16].seg;
+    o=romFonts[ROM_FONT_8x16].off;
+
+    //load the letter 'A'
+    __asm {
+		MOV DI, addr
+		MOV SI, o
+		MOV ES, s
+		SUB BH, BH
+		MOV BL, c	; the letter
+		SHL BX, 1
+		SHL BX, 1
+		SHL BX, 1
+		SHL BX, 1
+		ADD SI, BX	;the address of A
+		MOV CX, 16
+	L1:	MOV AX, ES:SI
+		MOV DS:DI, AX
+		INC SI
+		INC DI
+		DEC CX
+		JNZ L1
+    }
+
+    //render the letter in ascii art
+    for(i=0; i<16; i++) {
+	j=1<<8;
+	while(j) {
+	    printf("%c", l[i] & j ? '*':' ');
+	    j>>=1;
+	}
+	printf("\n");
+    }
+}