diff options
author | 2020-05-25 16:42:42 +0200 | |
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committer | 2020-05-25 16:42:57 +0200 | |
commit | 22513fb6fe281f5ccb75aaddb6417a12a66c313d (patch) | |
tree | 3cf84032cc6482d685a8dbb57e015bd17c7f7fdc /src/devices/cpu/z180/z180ops.h | |
parent | e42c2d2874cf9c1092c01ab5ce9ef997d465ce25 (diff) |
emumem: A little more speedup. cache and specific change syntax, and are not pointers anymore [O. Galibert]
The last(?) two changes are:
- Add a template parameter to everything (theoretically the address
space width, in practice a level derived from it to keep as much
compatibility between widths as possible) so that the shift size
becomes a constant.
- Change the syntax of declaring and initializing the caches and
specifics so that they're embedded in the owner device. Solves
lifetime issues and also removes one indirection (looking up the base
dispatch pointer through the cache/specific pointer).
Diffstat (limited to 'src/devices/cpu/z180/z180ops.h')
-rw-r--r-- | src/devices/cpu/z180/z180ops.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/devices/cpu/z180/z180ops.h b/src/devices/cpu/z180/z180ops.h index 7b4d0f159f2..0e57ff64532 100644 --- a/src/devices/cpu/z180/z180ops.h +++ b/src/devices/cpu/z180/z180ops.h @@ -27,7 +27,7 @@ inline u8 z180_device::IN(u16 port) if (is_internal_io_address(port)) return z180_readcontrol(port); m_extra_cycles += io_wait_states(); - return m_iospace->read_byte(port); + return m_io.read_byte(port); } /*************************************************************** @@ -40,7 +40,7 @@ inline void z180_device::OUT(u16 port, u8 value) else { m_extra_cycles += io_wait_states(); - m_iospace->write_byte(port, value); + m_io.write_byte(port, value); } } @@ -117,7 +117,7 @@ uint8_t z180_device::ROP() offs_t addr = _PCD; _PC++; m_extra_cycles += memory_wait_states(); - return m_ocache->read_byte(MMU_REMAP_ADDR(addr)); + return m_copcodes.read_byte(MMU_REMAP_ADDR(addr)); } /**************************************************************** @@ -131,7 +131,7 @@ uint8_t z180_device::ARG() offs_t addr = _PCD; _PC++; m_extra_cycles += memory_wait_states(); - return m_cache->read_byte(MMU_REMAP_ADDR(addr)); + return m_cprogram.read_byte(MMU_REMAP_ADDR(addr)); } uint32_t z180_device::ARG16() @@ -139,7 +139,7 @@ uint32_t z180_device::ARG16() offs_t addr = _PCD; _PC += 2; m_extra_cycles += memory_wait_states() * 2; - return m_cache->read_byte(MMU_REMAP_ADDR(addr)) | (m_cache->read_byte(MMU_REMAP_ADDR(addr+1)) << 8); + return m_cprogram.read_byte(MMU_REMAP_ADDR(addr)) | (m_cprogram.read_byte(MMU_REMAP_ADDR(addr+1)) << 8); } /*************************************************************** |