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Diffstat (limited to 'src/devices/cpu/tms1000/tms1400.cpp')
-rw-r--r--src/devices/cpu/tms1000/tms1400.cpp55
1 files changed, 0 insertions, 55 deletions
diff --git a/src/devices/cpu/tms1000/tms1400.cpp b/src/devices/cpu/tms1000/tms1400.cpp
index 470136a16e5..4c392ec7599 100644
--- a/src/devices/cpu/tms1000/tms1400.cpp
+++ b/src/devices/cpu/tms1000/tms1400.cpp
@@ -88,58 +88,3 @@ void tms1400_cpu_device::device_reset()
// small differences in 00-3f area
m_fixed_decode[0x0b] = F_TPC;
}
-
-
-// opcode deviations
-void tms1400_cpu_device::op_br()
-{
- // BR/BL: conditional branch
- if (m_status)
- {
- m_pa = m_pb; // don't care about clatch
- m_ca = m_cb;
- m_pc = m_opcode & m_pc_mask;
- }
-}
-
-void tms1400_cpu_device::op_call()
-{
- // CALL/CALLL: conditional call
- if (m_status)
- {
- // 3-level stack, mask clatch 3 bits (no need to mask others)
- m_clatch = (m_clatch << 1 | 1) & 7;
-
- m_sr = m_sr << m_pc_bits | m_pc;
- m_pc = m_opcode & m_pc_mask;
-
- m_ps = m_ps << 4 | m_pa;
- m_pa = m_pb;
-
- m_cs = m_cs << 2 | m_ca;
- m_ca = m_cb;
- }
- else
- {
- m_pb = m_pa;
- m_cb = m_ca;
- }
-}
-
-void tms1400_cpu_device::op_retn()
-{
- // RETN: return from subroutine
- if (m_clatch & 1)
- {
- m_clatch >>= 1;
-
- m_pc = m_sr & m_pc_mask;
- m_sr >>= m_pc_bits;
-
- m_pa = m_pb = m_ps & 0xf;
- m_ps >>= 4;
-
- m_ca = m_cb = m_cs & 3;
- m_cs >>= 2;
- }
-}