uxn

commit 12552c51a7b4b709204d116031e46773d08ae7ec
parent 44157aae5bb3c4bb2592ca7d07fe16ac6f7502d2
Author: Andrew Alderwick <andrew@alderwick.co.uk>
Date:   Sun, 28 Mar 2021 20:38:43 +0100

Removed FLAG_RETURN.

Diffstat:
M
src/uxn.c
 | 
4
+---
M
src/uxn.h
 | 
1
-

2 files changed, 1 insertion(+), 4 deletions(-)
diff --git a/src/uxn.c b/src/uxn.c
@@ -132,9 +132,7 @@ lituxn(Uxn *u, Uint8 instr)
 void
 opcuxn(Uxn *u, Uint8 instr)
 {
-	Uint8 op = instr & 0x3f, freturn;
-	setflag(&u->status, FLAG_RETURN, (instr >> 6) & 1);
-	freturn = getflag(&u->status, FLAG_RETURN);
+	Uint8 op = instr & 0x3f, freturn = instr & 0x40;
 	u->src = freturn ? &u->rst : &u->wst;
 	u->dst = freturn ? &u->wst : &u->rst;
 	(*ops[op])(u);
diff --git a/src/uxn.h b/src/uxn.h
@@ -17,7 +17,6 @@ typedef unsigned short Uint16;
 typedef signed short Sint16;
 
 #define FLAG_HALT 0x01
-#define FLAG_RETURN 0x04
 #define PAGE_DEVICE 0x0100
 #define PAGE_VECTORS 0x0200