Implement SET/RES for IX/IY.

src/z80_ops.inc.c

@@ -1855,7 +1855,22 @@ static uint8_t z80_inst_set_b_hl(Z80 *z80, uint8_t opcode)
     return 15;
 }
 
-// TODO: SET b, (IXY+d)
+/*
+    SET b, (IXY+d) (0xDDCBC6, 0xDDCBCE, 0xDDCBD6, 0xDDCBDE, 0xDDCBE6, 0xDDCBEE,
+          0xDDCBF6, 0xDDCBFE, 0xFDCBC6, 0xFDCBCE, 0xFDCBD6, 0xFDCBDE, 0xFDCBE6,
+          0xFDCBEE, 0xFDCBF6, 0xFDCBFE):
+    Set bit b of (IX+d) or (IY+d).
+*/
+static uint8_t z80_inst_set_b_ixy(Z80 *z80, uint8_t opcode)
+{
+    uint16_t addr = get_index_addr(z80, z80->regs.pc - 1);
+    uint8_t val = mmu_read_byte(z80->mmu, addr);
+    uint8_t bit = (opcode >> 3) & 0x07;
+    val |= 1 << bit;
+    mmu_write_byte(z80->mmu, addr, val);
+    z80->regs.pc++;
+    return 15;
+}
 
 /*
     RES b, r   (0xCB80, 0xCB81, 0xCB82, 0xCB83, 0xCB84, 0xCB85, 0xCB87, 0xCB88,
@@ -1891,7 +1906,22 @@ static uint8_t z80_inst_res_b_hl(Z80 *z80, uint8_t opcode)
     return 15;
 }
 
-// TODO: RES b, (IXY+d)
+/*
+    RES b, (IXY+d) (0xDDCB86, 0xDDCB8E, 0xDDCB96, 0xDDCB9E, 0xDDCBA6, 0xDDCBAE,
+          0xDDCBB6, 0xDDCBBE, 0xFDCB86, 0xFDCB8E, 0xFDCBA6, 0xFDCBAE, 0xFDCBB6,
+          0xFDCBBE, 0xFDCBC6, 0xFDCBCE):
+    Set bit b of (IX+d) or (IY+d).
+*/
+static uint8_t z80_inst_res_b_ixy(Z80 *z80, uint8_t opcode)
+{
+    uint16_t addr = get_index_addr(z80, z80->regs.pc - 1);
+    uint8_t val = mmu_read_byte(z80->mmu, addr);
+    uint8_t bit = (opcode >> 3) & 0x07;
+    val &= ~(1 << bit);
+    mmu_write_byte(z80->mmu, addr, val);
+    z80->regs.pc++;
+    return 15;
+}
 
 /*
     JP nn (0xC3):

src/z80_tables.inc.c

@@ -1172,7 +1172,7 @@ static DispatchTable instruction_table_index_bits = {
     [0x83] = z80_inst_unimplemented,  // TODO
     [0x84] = z80_inst_unimplemented,  // TODO
     [0x85] = z80_inst_unimplemented,  // TODO
-    [0x86] = z80_inst_unimplemented,  // TODO
+    [0x86] = z80_inst_res_b_ixy,
     [0x87] = z80_inst_unimplemented,  // TODO
     [0x88] = z80_inst_unimplemented,  // TODO
     [0x89] = z80_inst_unimplemented,  // TODO
@@ -1180,7 +1180,7 @@ static DispatchTable instruction_table_index_bits = {
     [0x8B] = z80_inst_unimplemented,  // TODO
     [0x8C] = z80_inst_unimplemented,  // TODO
     [0x8D] = z80_inst_unimplemented,  // TODO
-    [0x8E] = z80_inst_unimplemented,  // TODO
+    [0x8E] = z80_inst_res_b_ixy,
     [0x8F] = z80_inst_unimplemented,  // TODO
     [0x90] = z80_inst_unimplemented,  // TODO
     [0x91] = z80_inst_unimplemented,  // TODO
@@ -1188,7 +1188,7 @@ static DispatchTable instruction_table_index_bits = {
     [0x93] = z80_inst_unimplemented,  // TODO
     [0x94] = z80_inst_unimplemented,  // TODO
     [0x95] = z80_inst_unimplemented,  // TODO
-    [0x96] = z80_inst_unimplemented,  // TODO
+    [0x96] = z80_inst_res_b_ixy,
     [0x97] = z80_inst_unimplemented,  // TODO
     [0x98] = z80_inst_unimplemented,  // TODO
     [0x99] = z80_inst_unimplemented,  // TODO
@@ -1196,7 +1196,7 @@ static DispatchTable instruction_table_index_bits = {
     [0x9B] = z80_inst_unimplemented,  // TODO
     [0x9C] = z80_inst_unimplemented,  // TODO
     [0x9D] = z80_inst_unimplemented,  // TODO
-    [0x9E] = z80_inst_unimplemented,  // TODO
+    [0x9E] = z80_inst_res_b_ixy,
     [0x9F] = z80_inst_unimplemented,  // TODO
     [0xA0] = z80_inst_unimplemented,  // TODO
     [0xA1] = z80_inst_unimplemented,  // TODO
@@ -1204,7 +1204,7 @@ static DispatchTable instruction_table_index_bits = {
     [0xA3] = z80_inst_unimplemented,  // TODO
     [0xA4] = z80_inst_unimplemented,  // TODO
     [0xA5] = z80_inst_unimplemented,  // TODO
-    [0xA6] = z80_inst_unimplemented,  // TODO
+    [0xA6] = z80_inst_res_b_ixy,
     [0xA7] = z80_inst_unimplemented,  // TODO
     [0xA8] = z80_inst_unimplemented,  // TODO
     [0xA9] = z80_inst_unimplemented,  // TODO
@@ -1212,7 +1212,7 @@ static DispatchTable instruction_table_index_bits = {
     [0xAB] = z80_inst_unimplemented,  // TODO
     [0xAC] = z80_inst_unimplemented,  // TODO
     [0xAD] = z80_inst_unimplemented,  // TODO
-    [0xAE] = z80_inst_unimplemented,  // TODO
+    [0xAE] = z80_inst_res_b_ixy,
     [0xAF] = z80_inst_unimplemented,  // TODO
     [0xB0] = z80_inst_unimplemented,  // TODO
     [0xB1] = z80_inst_unimplemented,  // TODO
@@ -1220,7 +1220,7 @@ static DispatchTable instruction_table_index_bits = {
     [0xB3] = z80_inst_unimplemented,  // TODO
     [0xB4] = z80_inst_unimplemented,  // TODO
     [0xB5] = z80_inst_unimplemented,  // TODO
-    [0xB6] = z80_inst_unimplemented,  // TODO
+    [0xB6] = z80_inst_res_b_ixy,
     [0xB7] = z80_inst_unimplemented,  // TODO
     [0xB8] = z80_inst_unimplemented,  // TODO
     [0xB9] = z80_inst_unimplemented,  // TODO
@@ -1228,7 +1228,7 @@ static DispatchTable instruction_table_index_bits = {
     [0xBB] = z80_inst_unimplemented,  // TODO
     [0xBC] = z80_inst_unimplemented,  // TODO
     [0xBD] = z80_inst_unimplemented,  // TODO
-    [0xBE] = z80_inst_unimplemented,  // TODO
+    [0xBE] = z80_inst_res_b_ixy,
     [0xBF] = z80_inst_unimplemented,  // TODO
     [0xC0] = z80_inst_unimplemented,  // TODO
     [0xC1] = z80_inst_unimplemented,  // TODO
@@ -1236,7 +1236,7 @@ static DispatchTable instruction_table_index_bits = {
     [0xC3] = z80_inst_unimplemented,  // TODO
     [0xC4] = z80_inst_unimplemented,  // TODO
     [0xC5] = z80_inst_unimplemented,  // TODO
-    [0xC6] = z80_inst_unimplemented,  // TODO
+    [0xC6] = z80_inst_set_b_ixy,
     [0xC7] = z80_inst_unimplemented,  // TODO
     [0xC8] = z80_inst_unimplemented,  // TODO
     [0xC9] = z80_inst_unimplemented,  // TODO
@@ -1244,7 +1244,7 @@ static DispatchTable instruction_table_index_bits = {
     [0xCB] = z80_inst_unimplemented,  // TODO
     [0xCC] = z80_inst_unimplemented,  // TODO
     [0xCD] = z80_inst_unimplemented,  // TODO
-    [0xCE] = z80_inst_unimplemented,  // TODO
+    [0xCE] = z80_inst_set_b_ixy,
     [0xCF] = z80_inst_unimplemented,  // TODO
     [0xD0] = z80_inst_unimplemented,  // TODO
     [0xD1] = z80_inst_unimplemented,  // TODO
@@ -1252,7 +1252,7 @@ static DispatchTable instruction_table_index_bits = {
     [0xD3] = z80_inst_unimplemented,  // TODO
     [0xD4] = z80_inst_unimplemented,  // TODO
     [0xD5] = z80_inst_unimplemented,  // TODO
-    [0xD6] = z80_inst_unimplemented,  // TODO
+    [0xD6] = z80_inst_set_b_ixy,
     [0xD7] = z80_inst_unimplemented,  // TODO
     [0xD8] = z80_inst_unimplemented,  // TODO
     [0xD9] = z80_inst_unimplemented,  // TODO
@@ -1260,7 +1260,7 @@ static DispatchTable instruction_table_index_bits = {
     [0xDB] = z80_inst_unimplemented,  // TODO
     [0xDC] = z80_inst_unimplemented,  // TODO
     [0xDD] = z80_inst_unimplemented,  // TODO
-    [0xDE] = z80_inst_unimplemented,  // TODO
+    [0xDE] = z80_inst_set_b_ixy,
     [0xDF] = z80_inst_unimplemented,  // TODO
     [0xE0] = z80_inst_unimplemented,  // TODO
     [0xE1] = z80_inst_unimplemented,  // TODO
@@ -1268,7 +1268,7 @@ static DispatchTable instruction_table_index_bits = {
     [0xE3] = z80_inst_unimplemented,  // TODO
     [0xE4] = z80_inst_unimplemented,  // TODO
     [0xE5] = z80_inst_unimplemented,  // TODO
-    [0xE6] = z80_inst_unimplemented,  // TODO
+    [0xE6] = z80_inst_set_b_ixy,
     [0xE7] = z80_inst_unimplemented,  // TODO
     [0xE8] = z80_inst_unimplemented,  // TODO
     [0xE9] = z80_inst_unimplemented,  // TODO
@@ -1276,7 +1276,7 @@ static DispatchTable instruction_table_index_bits = {
     [0xEB] = z80_inst_unimplemented,  // TODO
     [0xEC] = z80_inst_unimplemented,  // TODO
     [0xED] = z80_inst_unimplemented,  // TODO
-    [0xEE] = z80_inst_unimplemented,  // TODO
+    [0xEE] = z80_inst_set_b_ixy,
     [0xEF] = z80_inst_unimplemented,  // TODO
     [0xF0] = z80_inst_unimplemented,  // TODO
     [0xF1] = z80_inst_unimplemented,  // TODO
@@ -1284,7 +1284,7 @@ static DispatchTable instruction_table_index_bits = {
     [0xF3] = z80_inst_unimplemented,  // TODO
     [0xF4] = z80_inst_unimplemented,  // TODO
     [0xF5] = z80_inst_unimplemented,  // TODO
-    [0xF6] = z80_inst_unimplemented,  // TODO
+    [0xF6] = z80_inst_set_b_ixy,
     [0xF7] = z80_inst_unimplemented,  // TODO
     [0xF8] = z80_inst_unimplemented,  // TODO
     [0xF9] = z80_inst_unimplemented,  // TODO
@@ -1292,6 +1292,6 @@ static DispatchTable instruction_table_index_bits = {
     [0xFB] = z80_inst_unimplemented,  // TODO
     [0xFC] = z80_inst_unimplemented,  // TODO
     [0xFD] = z80_inst_unimplemented,  // TODO
-    [0xFE] = z80_inst_unimplemented,  // TODO
+    [0xFE] = z80_inst_set_b_ixy,
     [0xFF] = z80_inst_unimplemented   // TODO
 };