diff options
Diffstat (limited to 'src/devices/cpu/tms9900/tms9900.cpp')
-rw-r--r-- | src/devices/cpu/tms9900/tms9900.cpp | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/src/devices/cpu/tms9900/tms9900.cpp b/src/devices/cpu/tms9900/tms9900.cpp index c7719cef76e..de0621bb6bd 100644 --- a/src/devices/cpu/tms9900/tms9900.cpp +++ b/src/devices/cpu/tms9900/tms9900.cpp @@ -2746,15 +2746,22 @@ void tms99xx_device::alu_int() } /**************************************************************************/ + +/* + The minimum number of cycles applies to a command like STWP R0. +*/ uint32_t tms99xx_device::execute_min_cycles() const { - return 2; + return 8; } -// TODO: Compute this value, just a wild guess for the average +/* + The maximum number of cycles applies to a DIV command, depending on the + data to be divided, and the mode of adressing. +*/ uint32_t tms99xx_device::execute_max_cycles() const { - return 10; + return 124; } uint32_t tms99xx_device::execute_input_lines() const |