X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=cyclone68000.git;a=blobdiff_plain;f=app.h;h=9d0195708f1658e6f8686d80bf849da311f17ad0;hp=f041dfffa9fee61ff19fa07d64b9b7c0d94200f5;hb=198817609e33a09e825e71e85118d1b07ecdf645;hpb=3504ce942735ae4283cd47ca6defaae87b550c57

diff --git a/app.h b/app.h
index f041dff..9d01957 100644
--- a/app.h
+++ b/app.h
@@ -24,6 +24,13 @@
 #include "Disa/Disa.h"
 
 // Ea.cpp
+enum EaRWType {
+  earwt_sign_extend = 1,
+  earwt_zero_extend,
+  earwt_shifted_up,
+  earwt_msb_dont_care,
+};
+
 extern int earead_check_addrerr;
 extern int eawrite_check_addrerr;
 extern int g_jmp_cycle_table[];
@@ -32,12 +39,11 @@ extern int g_lea_cycle_table[];
 extern int g_pea_cycle_table[];
 extern int g_movem_cycle_table[];
 int Ea_add_ns(int *tab, int ea); // add nonstandard EA cycles
-int EaCalc(int a,int mask,int ea,int size,int top=0,int sign_extend=1); // 6
-int EaRead(int a,int v,int ea,int size,int mask,int top=0,int sign_extend=1,int set_nz=0); // 8
-int EaCalcRead(int r_ea,int r,int ea,int size,int mask,int sign_extend=1,int set_nz=0); // 7
-int EaCalcReadNoSE(int r_ea,int r,int ea,int size,int mask);
+int EaCalc(int a,int mask,int ea,int size,EaRWType type=earwt_sign_extend); // 6
+int EaRead(int a,int v,int ea,int size,int mask,EaRWType type=earwt_sign_extend,int set_nz=0); // 8
+int EaCalcRead(int r_ea,int r,int ea,int size,int mask,EaRWType type=earwt_sign_extend,int set_nz=0); // 7
 int EaCanRead(int ea,int size);
-int EaWrite(int a,int v,int ea,int size,int mask,int top=0,int sign_extend_ea=1);
+int EaWrite(int a,int v,int ea,int size,int mask,EaRWType type=earwt_sign_extend);
 int EaCanWrite(int ea);
 int EaAn(int ea);
 
@@ -59,6 +65,8 @@ extern int g_op;
 extern int opend_op_changes_cycles, opend_check_interrupt, opend_check_trace;
 int OpGetFlags(int subtract,int xbit,int sprecialz=0);
 void OpGetFlagsNZ(int rd);
+void SignExtend(int rd, int rs, int size);
+void ZeroExtend(int rd, int rs, int size);
 void OpUse(int op,int use);
 void OpStart(int op,int sea=0,int tea=0,int op_changes_cycles=0,int supervisor_check=0);
 void OpEnd(int sea=0,int tea=0);