o add bsnes

bsnes/smp/ssmp/core/op_rmw.cpp

@@ -0,0 +1,265 @@
+#ifdef SSMP_CPP
+
+//inc_a
+case 0xbc: {
+  op_io();
+  regs.a = op_inc(regs.a);
+} break;
+
+//inc_x
+case 0x3d: {
+  op_io();
+  regs.x = op_inc(regs.x);
+} break;
+
+//inc_y
+case 0xfc: {
+  op_io();
+  regs.y = op_inc(regs.y);
+} break;
+
+//dec_a
+case 0x9c: {
+  op_io();
+  regs.a = op_dec(regs.a);
+} break;
+
+//dec_x
+case 0x1d: {
+  op_io();
+  regs.x = op_dec(regs.x);
+} break;
+
+//dec_y
+case 0xdc: {
+  op_io();
+  regs.y = op_dec(regs.y);
+} break;
+
+//asl_a
+case 0x1c: {
+  op_io();
+  regs.a = op_asl(regs.a);
+} break;
+
+//lsr_a
+case 0x5c: {
+  op_io();
+  regs.a = op_lsr(regs.a);
+} break;
+
+//rol_a
+case 0x3c: {
+  op_io();
+  regs.a = op_rol(regs.a);
+} break;
+
+//ror_a
+case 0x7c: {
+  op_io();
+  regs.a = op_ror(regs.a);
+} break;
+
+//inc_dp
+case 0xab: {
+  dp = op_readpc();
+  rd = op_readdp(dp);
+  rd = op_inc(rd);
+  op_writedp(dp, rd);
+} break;
+
+//dec_dp
+case 0x8b: {
+  dp = op_readpc();
+  rd = op_readdp(dp);
+  rd = op_dec(rd);
+  op_writedp(dp, rd);
+} break;
+
+//asl_dp
+case 0x0b: {
+  dp = op_readpc();
+  rd = op_readdp(dp);
+  rd = op_asl(rd);
+  op_writedp(dp, rd);
+} break;
+
+//lsr_dp
+case 0x4b: {
+  dp = op_readpc();
+  rd = op_readdp(dp);
+  rd = op_lsr(rd);
+  op_writedp(dp, rd);
+} break;
+
+//rol_dp
+case 0x2b: {
+  dp = op_readpc();
+  rd = op_readdp(dp);
+  rd = op_rol(rd);
+  op_writedp(dp, rd);
+} break;
+
+//ror_dp
+case 0x6b: {
+  dp = op_readpc();
+  rd = op_readdp(dp);
+  rd = op_ror(rd);
+  op_writedp(dp, rd);
+} break;
+
+//inc_dpx
+case 0xbb: {
+  dp = op_readpc();
+  op_io();
+  rd = op_readdp(dp + regs.x);
+  rd = op_inc(rd);
+  op_writedp(dp + regs.x, rd);
+} break;
+
+//dec_dpx
+case 0x9b: {
+  dp = op_readpc();
+  op_io();
+  rd = op_readdp(dp + regs.x);
+  rd = op_dec(rd);
+  op_writedp(dp + regs.x, rd);
+} break;
+
+//asl_dpx
+case 0x1b: {
+  dp = op_readpc();
+  op_io();
+  rd = op_readdp(dp + regs.x);
+  rd = op_asl(rd);
+  op_writedp(dp + regs.x, rd);
+} break;
+
+//lsr_dpx
+case 0x5b: {
+  dp = op_readpc();
+  op_io();
+  rd = op_readdp(dp + regs.x);
+  rd = op_lsr(rd);
+  op_writedp(dp + regs.x, rd);
+} break;
+
+//rol_dpx
+case 0x3b: {
+  dp = op_readpc();
+  op_io();
+  rd = op_readdp(dp + regs.x);
+  rd = op_rol(rd);
+  op_writedp(dp + regs.x, rd);
+} break;
+
+//ror_dpx
+case 0x7b: {
+  dp = op_readpc();
+  op_io();
+  rd = op_readdp(dp + regs.x);
+  rd = op_ror(rd);
+  op_writedp(dp + regs.x, rd);
+} break;
+
+//inc_addr
+case 0xac: {
+  dp  = op_readpc();
+  dp |= op_readpc() << 8;
+  rd = op_readaddr(dp);
+  rd = op_inc(rd);
+  op_writeaddr(dp, rd);
+} break;
+
+//dec_addr
+case 0x8c: {
+  dp  = op_readpc();
+  dp |= op_readpc() << 8;
+  rd = op_readaddr(dp);
+  rd = op_dec(rd);
+  op_writeaddr(dp, rd);
+} break;
+
+//asl_addr
+case 0x0c: {
+  dp  = op_readpc();
+  dp |= op_readpc() << 8;
+  rd = op_readaddr(dp);
+  rd = op_asl(rd);
+  op_writeaddr(dp, rd);
+} break;
+
+//lsr_addr
+case 0x4c: {
+  dp  = op_readpc();
+  dp |= op_readpc() << 8;
+  rd = op_readaddr(dp);
+  rd = op_lsr(rd);
+  op_writeaddr(dp, rd);
+} break;
+
+//rol_addr
+case 0x2c: {
+  dp  = op_readpc();
+  dp |= op_readpc() << 8;
+  rd = op_readaddr(dp);
+  rd = op_rol(rd);
+  op_writeaddr(dp, rd);
+} break;
+
+//ror_addr
+case 0x6c: {
+  dp  = op_readpc();
+  dp |= op_readpc() << 8;
+  rd = op_readaddr(dp);
+  rd = op_ror(rd);
+  op_writeaddr(dp, rd);
+} break;
+
+//tset_addr_a
+case 0x0e: {
+  dp  = op_readpc();
+  dp |= op_readpc() << 8;
+  rd = op_readaddr(dp);
+  regs.p.n = !!((regs.a - rd) & 0x80);
+  regs.p.z = ((regs.a - rd) == 0);
+  op_readaddr(dp);
+  op_writeaddr(dp, rd | regs.a);
+} break;
+
+//tclr_addr_a
+case 0x4e: {
+  dp  = op_readpc();
+  dp |= op_readpc() << 8;
+  rd = op_readaddr(dp);
+  regs.p.n = !!((regs.a - rd) & 0x80);
+  regs.p.z = ((regs.a - rd) == 0);
+  op_readaddr(dp);
+  op_writeaddr(dp, rd &~ regs.a);
+} break;
+
+//incw_dp
+case 0x3a: {
+  dp = op_readpc();
+  rd = op_readdp(dp);
+  rd++;
+  op_writedp(dp++, rd);
+  rd += op_readdp(dp) << 8;
+  op_writedp(dp, rd >> 8);
+  regs.p.n = !!(rd & 0x8000);
+  regs.p.z = (rd == 0);
+} break;
+
+//decw_dp
+case 0x1a: {
+  dp = op_readpc();
+  rd = op_readdp(dp);
+  rd--;
+  op_writedp(dp++, rd);
+  rd += op_readdp(dp) << 8;
+  op_writedp(dp, rd >> 8);
+  regs.p.n = !!(rd & 0x8000);
+  regs.p.z = (rd == 0);
+} break;
+
+#endif