From ebdb079cae3b90e4ad9b70535d19e44ecf80508c Mon Sep 17 00:00:00 2001
From: neauoire <aliceffekt@gmail.com>
Date: Sun, 28 Mar 2021 10:20:24 -0700
Subject: [PATCH] Fixed issue with assembler segfault

---
 build.sh                       |  2 +-
 projects/examples/dev.keys.usm | 15 +++++++++++++++
 src/assembler.c                | 10 +++++-----
 src/emulator.c                 |  1 +
 4 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/build.sh b/build.sh
index 99c7f9f..a6e2477 100755
--- a/build.sh
+++ b/build.sh
@@ -28,7 +28,7 @@ else
 fi
 
 echo "Assembling.."
-./bin/assembler projects/software/noodle.usm bin/boot.rom
+./bin/assembler projects/software/left.usm bin/boot.rom
 
 echo "Running.."
 if [ "${2}" = '--cli' ]; 
diff --git a/projects/examples/dev.keys.usm b/projects/examples/dev.keys.usm
index 3194a47..ec8c9d3 100644
--- a/projects/examples/dev.keys.usm
+++ b/projects/examples/dev.keys.usm
@@ -2,6 +2,10 @@
 
 %8+  { #0008 ADD2 }
 %8*  { #0030 SFT2 }
+%MOD2 { #03 AND  }
+
+;cursor { x 2 y 2 blink 1 }
+
 
 |0100 ;Console { pad 8 char 1 byte 1 short 2 }
 |0110 ;Screen { width 2 height 2 pad 4 y 2 x 2 color 1 }
@@ -15,6 +19,15 @@
 
 @FRAME
 	
+	( update cursor )
+	#02 ~cursor.blink #01 EQU ADD =Sprite.color
+
+	,cursor_icn =Sprite.addr
+	~cursor.blink MOD2 #00 EQU =cursor.blink
+
+	
+
+
 	~Keys #00 EQU ^$end JNZ
 
 	( enter key )
@@ -34,6 +47,8 @@
 
 BRK
 
+@cursor_icn [ ffff ffff ffff ffff ]
+
 @font ( spectrum-zx font ) 
 [
 	0000 0000 0000 0000 0000 2400 7e3c 0000 0000 2400 3c42 0000 0000 6c7c 7c38 1000
diff --git a/src/assembler.c b/src/assembler.c
index 34d6b41..c969885 100644
--- a/src/assembler.c
+++ b/src/assembler.c
@@ -263,11 +263,11 @@ walktoken(char *w)
 	if(findopcode(w) || scmp(w, "BRK", 4))
 		return 1;
 	switch(w[0]) {
-	case '=': return 4 - (findlabeladdr(w + 1) < 0x0100); /* POK/STR helper (lit addr(1/2) str) */
-	case '~': return 4 - (findlabeladdr(w + 1) < 0x0100); /* PEK/LDR helper (lit addr(1/2) ldr) */
-	case ',': return 3;                                   /* lit2 addr-hb addr-lb */
-	case '.': return 2;                                   /* addr-hb addr-lb */
-	case '^': return 2;                                   /* Relative jump: lit addr-offset */
+	case '=': return 4 - (findlabel(w + 1) && findlabeladdr(w + 1) < 0x0100); /* POK/STR helper (lit addr(1/2) str) */
+	case '~': return 4 - (findlabel(w + 1) && findlabeladdr(w + 1) < 0x0100); /* PEK/LDR helper (lit addr(1/2) ldr) */
+	case ',': return 3;                                                       /* lit2 addr-hb addr-lb */
+	case '.': return 2;                                                       /* addr-hb addr-lb */
+	case '^': return 2;                                                       /* Relative jump: lit addr-offset */
 	case '#': return (slen(w + 1) == 2 ? 2 : 3);
 	}
 	if((m = findmacro(w))) {
diff --git a/src/emulator.c b/src/emulator.c
index 5f3c659..fb939c8 100644
--- a/src/emulator.c
+++ b/src/emulator.c
@@ -436,6 +436,7 @@ datetime_poke(Uxn *u, Uint16 ptr, Uint8 b0, Uint8 b1)
 	m[ptr + 8] = (t->tm_yday & 0xff00) >> 8;
 	m[ptr + 9] = t->tm_yday & 0xff;
 	m[ptr + 10] = t->tm_isdst;
+	(void)b0;
 	return b1;
 }