X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=cpu%2Fdrc%2Femit_x86.c;h=754c27fe1a4c1ef227cf69cdd1bc50936dfcd834;hb=9db6a54485501b56b0f2f5db4d093c38fe495bda;hp=3624f5c3f1c55cb14d4b430069de5536f583622d;hpb=04092e329bbd050073d42defcd609550d8545e74;p=picodrive.git

diff --git a/cpu/drc/emit_x86.c b/cpu/drc/emit_x86.c
index 3624f5c..754c27f 100644
--- a/cpu/drc/emit_x86.c
+++ b/cpu/drc/emit_x86.c
@@ -1,4 +1,10 @@
 /*
+ * Basic macros to emit x86 instructions and some utils
+ * Copyright (C) 2008,2009,2010 notaz
+ *
+ * This work is licensed under the terms of MAME license.
+ * See COPYING file in the top-level directory.
+ *
  * note:
  *  temp registers must be eax-edx due to use of SETcc and r/w 8/16.
  * note about silly things like emith_eor_r_r_r:
@@ -139,6 +145,17 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
 }
 
 // _r_r_r
+#define emith_add_r_r_r(d, s1, s2) { \
+	if (d == s1) { \
+		emith_add_r_r(d, s2); \
+	} else if (d == s2) { \
+		emith_add_r_r(d, s1); \
+	} else { \
+		emith_move_r_r(d, s1); \
+		emith_add_r_r(d, s2); \
+	} \
+}
+
 #define emith_eor_r_r_r(d, s1, s2) { \
 	if (d == s1) { \
 		emith_eor_r_r(d, s2); \
@@ -612,14 +629,13 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
 }
 
 // assumes EBX is free temporary
-#define emith_sh2_wcall(a, tab, ret_ptr) { \
+#define emith_sh2_wcall(a, tab) { \
 	int arg2_; \
 	host_arg2reg(arg2_, 2); \
 	emith_lsr(xBX, a, SH2_WRITE_SHIFT); \
 	EMIT_OP_MODRM(0x8b, 0, xBX, 4); \
 	EMIT_SIB(2, xBX, tab); /* mov ebx, [tab + ebx * 4] */ \
-	emith_ctx_read(arg2_, offsetof(SH2, is_slave)); \
-	emith_push_imm((long)(ret_ptr)); \
+	emith_move_r_r(arg2_, CONTEXT_REG); \
 	emith_jump_reg(xBX); \
 }