1 files changed, 91 insertions, 0 deletions
diff --git a/igen/sux-igen/addr-modes.igen b/igen/sux-igen/addr-modes.igen
new file mode 100644
index 0000000..3780ed2
--- /dev/null
+++ b/igen/sux-igen/addr-modes.igen
@@ -0,0 +1,91 @@
+#include "utils.igen"
+
+%%
+
+/*
+am((abs|zm)[xy]?) {
+	if (am == zmx || am == absx) {
+		idx = cpu->x;
+	} else if (am == zmy || am == absy) {
+		idx = cpu->y;
+	}
+
+	if (am == abs || am == absx || am == absy) {
+		is_abs = 1;
+	}
+
+	size = ((prefix & 0xC) >> 1) | is_abs;
+	addr = read(cpu->pc, size) + idx;
+	value = read(addr, rs);
+}
+
+am((a)?ind([xy])?) {
+	if (am == indx || am == aindx) {
+		idx = cpu->x;
+		pre_idx = 1;
+	} else if (am == indy || am == aindy) {
+		idx = cpu->y;
+	}
+
+	if (am == aind || am == aindx || am == aindy) {
+		is_abs = 1;
+	}
+
+	size = ((prefix & 0xC) >> 1) | is_abs;
+
+	if (pre_idx) {
+		addr = read(read(cpu->pc + idx, size), 7);
+	} else {
+		addr = read(read(cpu->pc, size), 7) + idx;
+	}
+
+	value = read(addr, rs);
+}
+
+am(eind) {
+	addr = cpu->e;
+	value = read(addr, rs);
+}
+*/
+
+am(abs|zm([xy])?) {
+	if (am == abs) {
+		mem_type = ABS;
+	} else {
+		if (am == zmx) {
+			idx = cpu->x;
+		} else if (am == zmy) {
+			idx = cpu->y;
+		}
+		mem_type = ZM;
+	}
+	addr = read_addr(prefix, mem_type) + idx;
+	value = read(addr, rs);
+}
+
+am(ind([xy])?) {
+	if (am == indx) {
+		idx = cpu->x;
+		pre_idx = 1;
+	} else if (am == indy) {
+		idx = cpu->y;
+	}
+	mem_type = ZM;
+	addr = ind_idx_addr(prefix, mem_type, idx, pre_idx);
+	value = read(addr, rs);
+}
+
+am(rel) {
+	addr = rel_addr(prefix);
+}
+
+am(imm) {
+	value = read(cpu->pc, rs);
+	cpu->pc += rs+1;
+}
+
+am(breg) {
+	value = cpu->b;
+}
+
+%%