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Diffstat (limited to 'src/emu/cpu/e0c6200/e0c6200.c')
-rw-r--r--src/emu/cpu/e0c6200/e0c6200.c20
1 files changed, 9 insertions, 11 deletions
diff --git a/src/emu/cpu/e0c6200/e0c6200.c b/src/emu/cpu/e0c6200/e0c6200.c
index d9b1ab65864..e0b6a2eb8d2 100644
--- a/src/emu/cpu/e0c6200/e0c6200.c
+++ b/src/emu/cpu/e0c6200/e0c6200.c
@@ -78,7 +78,7 @@ void e0c6200_cpu_device::device_start()
m_prev_pc = 0;
m_npc = 0;
m_jpc = 0;
-
+
m_a = 0;
m_b = 0;
m_xp = m_xh = m_xl = 0;
@@ -158,7 +158,7 @@ void e0c6200_cpu_device::do_interrupt()
m_halt = m_sleep = false;
push_pc();
m_f &= ~I_FLAG;
-
+
// page 1 of the current bank
m_pc = (m_pc & 0x1000) | 0x100 | m_irq_vector;
@@ -180,27 +180,27 @@ void e0c6200_cpu_device::execute_run()
break;
}
}
-
+
// core cpu not running (peripherals still work)
if (m_halt || m_sleep)
{
m_icount = 0;
break;
}
-
+
// remember previous state, prepare pset-longjump
m_prev_op = m_op;
m_prev_pc = m_pc;
m_jpc = ((m_prev_op & 0xfe0) == 0xe40) ? m_npc : (m_prev_pc & 0x1f00);
-
+
// fetch next opcode
debugger_instruction_hook(this, m_pc);
m_op = m_program->read_word(m_pc << 1) & 0xfff;
m_pc = (m_pc & 0x1000) | ((m_pc + 1) & 0x0fff);
-
+
// minimal opcode time is 5 clock cycles, opcodes take 5, 7, or 12 clock cycles
m_icount -= 5;
-
+
// handle opcode
execute_one();
}
@@ -226,7 +226,7 @@ void e0c6200_cpu_device::execute_one()
// i = 4-bit immediate param
// e = 8-bit immediate param
// s = 8-bit immediate branch destination
-
+
switch (m_op & 0xf00)
{
// JP s: jump unconditional
@@ -296,7 +296,6 @@ void e0c6200_cpu_device::execute_one()
default:
switch (m_op)
{
-
// LD r,q: load register with register
case 0xec0: /* m_a = m_a; */ break;
case 0xec1: m_a = m_b; break;
@@ -698,7 +697,6 @@ void e0c6200_cpu_device::execute_one()
default:
switch (m_op & 0xff0)
{
-
// LD r,i: load register with 4-bit immediate data
case 0xe00: m_a = m_op & 0xf; break;
case 0xe10: m_b = m_op & 0xf; break;
@@ -726,7 +724,7 @@ void e0c6200_cpu_device::execute_one()
break;
// LD Mn,A: load memory with A
- case 0xf80:
+ case 0xf80:
write_mn(m_a);
break;