diff options
Diffstat (limited to 'src/devices/cpu/melps4/melps4op.cpp')
-rw-r--r-- | src/devices/cpu/melps4/melps4op.cpp | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/src/devices/cpu/melps4/melps4op.cpp b/src/devices/cpu/melps4/melps4op.cpp index 755d5a10ef1..5760836515b 100644 --- a/src/devices/cpu/melps4/melps4op.cpp +++ b/src/devices/cpu/melps4/melps4op.cpp @@ -9,15 +9,15 @@ // internal helpers -inline uint8_t melps4_cpu_device::ram_r() +inline u8 melps4_cpu_device::ram_r() { - uint8_t address = (m_z << 6 | m_x << 4 | m_y) & m_datamask; + u8 address = (m_z << 6 | m_x << 4 | m_y) & m_datamask; return m_data->read_byte(address) & 0xf; } -inline void melps4_cpu_device::ram_w(uint8_t data) +inline void melps4_cpu_device::ram_w(u8 data) { - uint8_t address = (m_z << 6 | m_x << 4 | m_y) & m_datamask; + u8 address = (m_z << 6 | m_x << 4 | m_y) & m_datamask; m_data->write_byte(address, data & 0xf); } @@ -135,7 +135,7 @@ void melps4_cpu_device::op_lcps() m_cps = m_op & 1; // swap registers - uint8_t x, y, z, cy; + u8 x, y, z, cy; x = m_x; y = m_y; z = m_z; @@ -172,7 +172,7 @@ void melps4_cpu_device::op_tam() void melps4_cpu_device::op_xam() { // XAM j: exchange RAM with A, xor X with j - uint8_t a = m_a; + u8 a = m_a; m_a = ram_r(); ram_w(a); m_x ^= m_op & 3; @@ -228,7 +228,7 @@ void melps4_cpu_device::op_amcs() void melps4_cpu_device::op_a() { // A n: add immediate to A, skip next on no carry (except when n=6) - uint8_t n = m_op & 0xf; + u8 n = m_op & 0xf; m_a += n; m_skip = !(m_a & 0x10 || n == 6); m_a &= 0xf; @@ -261,7 +261,7 @@ void melps4_cpu_device::op_cma() void melps4_cpu_device::op_rl() { // RL(undocumented): rotate A left through carry - uint8_t c = m_a >> 3 & 1; + u8 c = m_a >> 3 & 1; m_a = (m_a << 1 | m_cy) & 0xf; m_cy = c; } @@ -269,7 +269,7 @@ void melps4_cpu_device::op_rl() void melps4_cpu_device::op_rr() { // RR(undocumented): rotate A right through carry - uint8_t c = m_a & 1; + u8 c = m_a & 1; m_a = m_a >> 1 | m_cy << 3; m_cy = c; } @@ -334,7 +334,7 @@ void melps4_cpu_device::op_taj() void melps4_cpu_device::op_xal() { // XAL: exchange A with L - uint8_t a = m_a; + u8 a = m_a; m_a = m_l; m_l = a; } @@ -342,7 +342,7 @@ void melps4_cpu_device::op_xal() void melps4_cpu_device::op_xah() { // XAH: exchange A with H - uint8_t a = m_a; + u8 a = m_a; m_a = m_h; m_h = a; } @@ -363,7 +363,7 @@ void melps4_cpu_device::op_dec() void melps4_cpu_device::op_shl() { // SHL: set bit in L or H designated by C - uint8_t mask = 1 << (m_c & 3); + u8 mask = 1 << (m_c & 3); if (m_c & 4) m_h |= mask; else @@ -373,7 +373,7 @@ void melps4_cpu_device::op_shl() void melps4_cpu_device::op_rhl() { // RHL: reset bit in L or H designated by C - uint8_t mask = 1 << (m_c & 3); + u8 mask = 1 << (m_c & 3); if (m_c & 4) m_h &= ~mask; else @@ -499,7 +499,7 @@ void melps4_cpu_device::op_b() // - short call: subroutine page // - short jump: current page, or sub. page + 1 when in sub. mode // - long jump/call(B/BM preceded by SP): temp SP register - uint8_t page = m_pc >> 7; + u8 page = m_pc >> 7; if ((m_prev_op & ~0xf) == m_sp_mask) { m_sm = false; @@ -696,5 +696,5 @@ void melps4_cpu_device::op_nop() void melps4_cpu_device::op_illegal() { - logerror("%s unknown opcode $%03X at $%04X\n", tag(), m_op, m_prev_pc); + logerror("unknown opcode $%03X at $%04X\n", m_op, m_prev_pc); } |