Add cc65 artifacts to repo for now

cc65/asminc/sim65.inc

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+
+; *******************************************************************************
+; **                                                                           **
+; **  sim65.inc : assembler definitions for the sim6502 and sim65c02 targets.  **
+; **                                                                           **
+; **  Sidney Cadot, January 2025                                               **
+; **                                                                           **
+; *******************************************************************************
+
+            ; The '_peripherals' symbol is defined in the linker configuration
+            ; file to correspond to the first address in the periperal memory
+            ; aparture.
+            ;
+            ; We use it here as a base address for all peripheral addresses.
+
+            .import _peripherals
+
+; **************************************************************
+; **                                                          **
+; **  Define assembler symbols for the "counter" peripheral.  **
+; **                                                          **
+; **************************************************************
+
+peripheral_counter_base   := _peripherals + 0
+
+peripheral_counter_latch  := peripheral_counter_base + 0
+peripheral_counter_select := peripheral_counter_base + 1
+peripheral_counter_value  := peripheral_counter_base + 2
+
+; Values for the peripheral_counter_select register.
+
+COUNTER_SELECT_CLOCKCYCLE_COUNTER   = $00
+COUNTER_SELECT_INSTRUCTION_COUNTER  = $01
+COUNTER_SELECT_IRQ_COUNTER          = $02
+COUNTER_SELECT_NMI_COUNTER          = $03
+COUNTER_SELECT_WALLCLOCK_TIME       = $80
+COUNTER_SELECT_WALLCLOCK_TIME_SPLIT = $81
+
+; ********************************************************************
+; **                                                                **
+; **  Define assembler symbols for the "sim65 control" peripheral.  **
+; **                                                                **
+; ********************************************************************
+
+peripheral_sim65_base       := _peripherals + 10
+
+peripheral_sim65_cpu_mode   := peripheral_sim65_base + 0
+peripheral_sim65_trace_mode := peripheral_sim65_base + 1
+
+; Values for the peripheral_sim65_cpu_mode register.
+
+SIM65_CPU_MODE_6502  = $00
+SIM65_CPU_MODE_65C02 = $01
+SIM65_CPU_MODE_6502X = $02
+
+; Bitfield values for the peripheral_sim65_trace_mode field.
+
+SIM65_TRACE_MODE_FIELD_INSTR_COUNTER  = $40
+SIM65_TRACE_MODE_FIELD_CLOCK_COUNTER  = $20
+SIM65_TRACE_MODE_FIELD_PC             = $10
+SIM65_TRACE_MODE_FIELD_INSTR_BYTES    = $08
+SIM65_TRACE_MODE_FIELD_INSTR_ASSEMBLY = $04
+SIM65_TRACE_MODE_FIELD_CPU_REGISTERS  = $02
+SIM65_TRACE_MODE_FIELD_CC65_SP        = $01
+
+; Values for the peripheral_sim65_trace_mode field that fully disable / enable tracing.
+
+SIM65_TRACE_MODE_DISABLE              = $00
+SIM65_TRACE_MODE_ENABLE_FULL          = $7F
+
+; ************************
+; **                    **
+; **  End of sim65.inc  **
+; **                    **
+; ************************