283 lines
6.7 KiB
NASM
283 lines
6.7 KiB
NASM
; Generated by Henceforth {{ env!("CARGO_PKG_VERSION") }} ({{ env!("CARGO_PKG_REPOSITORY") }})
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.include "$lib/core.asm"
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.include "$lib/std.asm"
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.define PLACEHOLDER_U8, CORE_U8_MAX
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.define PLACEHOLDER_U16, CORE_U16_MAX
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.define_eval prev, OFFSET
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ts PLACEHOLDER_U16
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tlr CORE_REG_PC
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.define_eval diff, (OFFSET - prev)
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.define_eval MAIN_JUMPER, (CORE_MEM_PRG_END - diff)
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.org prev
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.delete prev, diff
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.define_eval prev, OFFSET
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{%- for c in conditions %}
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.bytes PLACEHOLDER_U16{% if !c.data.1.is_empty() %}, PLACEHOLDER_U16{% endif %}
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{%- endfor %}
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.define_eval JUMP_TABLE_CONDITIONS_SIZE, (OFFSET - prev)
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.org prev
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.delete prev
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.define_eval JUMP_TABLE_WORDS_SIZE, ({{ words.len() }} * 2)
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.define_eval JUMP_TABLE_PTR, (MAIN_JUMPER - JUMP_TABLE_CONDITIONS_SIZE - JUMP_TABLE_WORDS_SIZE)
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.debug JUMP_TABLE_CONDITIONS_SIZE, JUMP_TABLE_WORDS_SIZE, (JUMP_TABLE_CONDITIONS_SIZE + JUMP_TABLE_WORDS_SIZE / 2), JUMP_TABLE_PTR
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.define_eval counter, 0
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; jump table
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; conditions
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{%- for c in conditions %}
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.define_eval jump_table_conditions_if_{{ c.id }}, (JUMP_TABLE_PTR + counter)
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.define_eval counter, (counter + 2)
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{%- if !c.data.1.is_empty() %}
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.define_eval jump_table_conditions_else_{{ c.id }}, (JUMP_TABLE_PTR + counter)
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.define_eval counter, (counter + 2)
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{%- endif %}
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{%- endfor %}
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; words
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{%- for w in words %}
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.define_eval jump_table_words_{{ w.id }}, (JUMP_TABLE_PTR + counter)
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.define_eval counter, (counter + 1)
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{%- endfor %}
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.delete counter
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.define_eval MEM_JUMP_TABLE_LEN, (JUMP_TABLE_CONDITIONS_SIZE + JUMP_TABLE_WORDS_SIZE / 2)
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.define_eval MEM_JUMP_TABLE_PTR, CORE_MEM_MEM
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.define_eval MEM_JUMP_TABLE_END, (MEM_JUMP_TABLE_PTR + MEM_JUMP_TABLE_LEN)
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.define_eval MEM_LOOP_DEPTH, (MEM_JUMP_TABLE_END + 1)
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.define_eval MEM_LOOP_I, (MEM_LOOP_DEPTH + 1)
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.define_eval MEM_LOOP_J, (MEM_LOOP_I + 1)
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.define_eval MEM_CALL_STACK_LEN, 16
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.define_eval MEM_CALL_STACK_PTR, (MEM_LOOP_J + 1)
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.define_eval MEM_CALL_STACK_END, (MEM_CALL_STACK_PTR + MEM_CALL_STACK_LEN)
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.define_eval MEM_ALLOC_PTR, (MEM_CALL_STACK_END + 1)
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.macro stack_transfer_alu
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.std_ld
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tlr CORE_REG_B
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.std_ld
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tlr CORE_REG_A
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.endmacro
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.macro jump_table_pull_ptr, jump_table_pull_ptr_arg_0_ptr, jump_table_pull_ptr_arg_1_counter
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ts jump_table_pull_ptr_arg_0_ptr
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tls
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ts 8
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tlr CORE_REG_B
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.std_get jump_table_pull_ptr_arg_0_ptr
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tlr CORE_REG_A
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ts CORE_ALU_LSH
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alu
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tlr CORE_REG_A
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.std_get (jump_table_pull_ptr_arg_0_ptr + 1)
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tlr CORE_REG_B
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ts CORE_ALU_OR
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alu
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tlr CORE_REG_A
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tls
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dbg
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pop
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pop
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.endmacro
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.define_eval counter, 0
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; setup jump table
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; conditions
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{%- for c in conditions %}
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.jump_table_pull_ptr jump_table_conditions_if_{{ c.id }}, counter
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.define_eval counter, (counter + 1)
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{%- if !c.data.1.is_empty() %}
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.jump_table_pull_ptr jump_table_conditions_else_{{ c.id }}, counter
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.define_eval counter, (counter + 1)
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{%- endif %}
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{%- endfor %}
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; words
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{%- for w in words %}
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.jump_table_pull_ptr jump_table_words_{{ w.id }}, counter
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.define_eval counter, (counter + 1)
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{%- endfor %}
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.delete counter
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.delete_macro jump_table_pull_ptr
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.macro self_ref, self_ref_arg_0_ptr
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.std_rset CORE_REG_A, self_ref_arg_0_ptr
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.std_set self_ref_arg_0_ptr
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.endmacro
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; reference MEM_CALL_STACK_PTR to itself
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.self_ref MEM_CALL_STACK_PTR
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; reference MEM_ALLOC_PTR to itself
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.self_ref MEM_ALLOC_PTR
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.delete_macro self_ref
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.std_jump MAIN_JUMPER
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call_stack_jump:
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.std_get MEM_CALL_STACK_PTR
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tlr CORE_REG_A
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.std_rset CORE_REG_B, 1
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.std_alu CORE_ALU_ADD
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tlr CORE_REG_A
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tlr CORE_REG_B
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.std_set MEM_CALL_STACK_PTR
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tsr CORE_REG_D
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tlr CORE_REG_A
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tsr CORE_REG_B
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set
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tsr CORE_REG_C
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tlr CORE_REG_PC
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return_call_stack_jump:
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.std_get MEM_CALL_STACK_PTR
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tlr CORE_REG_A
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tlr CORE_REG_C
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.std_rset CORE_REG_B, 1
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.std_alu CORE_ALU_SUB
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tlr CORE_REG_A
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.std_set MEM_CALL_STACK_PTR
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tsr CORE_REG_C
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get
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tlr CORE_REG_PC
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.macro call_stack_jump, call_stack_jump_arg_0_label
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.std_rset CORE_REG_C, call_stack_jump_arg_0_label
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.std_rset CORE_REG_D, (OFFSET + 7)
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ts call_stack_jump
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tlr CORE_REG_PC
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.endmacro
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.macro call_stack_jump_cond_if, call_stack_jump_cond_if_arg_0_if_label
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.std_ld
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tlr CORE_REG_A
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.std_rset CORE_REG_C, call_stack_jump_cond_if_arg_0_if_label
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.std_rset CORE_REG_D, (OFFSET + 7)
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ts call_stack_jump
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tlrc CORE_REG_PC
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.endmacro
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.define_eval prev, OFFSET
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.std_ld
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tlr CORE_REG_A
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.std_rset CORE_REG_C, PLACEHOLDER_U16
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.std_rset CORE_REG_D, PLACEHOLDER_U16
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ts call_stack_jump
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tlrc CORE_REG_PC
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.std_rset CORE_REG_C, PLACEHOLDER_U16
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.std_rset CORE_REG_D, PLACEHOLDER_U16
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ts call_stack_jump
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tlr CORE_REG_PC
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.define_eval CALL_STACK_JUMP_COND_IF_ELSE_SIZE, (OFFSET - prev)
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.org prev
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.delete prev
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.macro call_stack_jump_cond_if_else, call_stack_jump_cond_if_else_arg_0_if_label, call_stack_jump_cond_if_else_arg_1_else_label
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.define_eval prev, OFFSET
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.define offset_till_end, (OFFSET - prev * -1 + CALL_STACK_JUMP_COND_IF_ELSE_SIZE)
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.std_ld
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tlr CORE_REG_A
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.std_rset CORE_REG_C, call_stack_jump_cond_if_else_arg_0_if_label
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.std_rset CORE_REG_D, (OFFSET + offset_till_end)
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ts call_stack_jump
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tlrc CORE_REG_PC
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.std_rset CORE_REG_C, call_stack_jump_cond_if_else_arg_1_else_label
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.std_rset CORE_REG_D, (OFFSET + offset_till_end)
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ts call_stack_jump
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tlr CORE_REG_PC
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.delete prev, offset_till_end
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.endmacro
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.macro return_call_stack_jump
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.std_jump return_call_stack_jump
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.endmacro
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; data
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; strings
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{%- for s in strings %}
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{% let bytes = s.data.as_bytes() -%}
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data_strings_{{ s.id }}:
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{%- for byte in bytes %}
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.bytes {{ "0x{:02x}"|format(byte) }}
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{%- endfor %}
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data_strings_end_{{ s.id }}:
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{% endfor %}
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; conditions
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{%- for c in conditions %}
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; condition: {{ c.id }}
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conditions_if_{{ c.id }}:
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{%- for ins in c.data.0 %}
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{{ ins }}
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{%- endfor %}
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.return_call_stack_jump
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{%- if !c.data.1.is_empty() %}
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conditions_else_{{ c.id }}:
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{%- for ins in c.data.1 %}
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{{ ins }}
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{%- endfor %}
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.return_call_stack_jump
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{%- endif %}
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{% endfor %}
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; words
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{%- for w in words %}
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words_{{ w.id }}:
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{%- for node in w.data.1 %}
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{{ node }}
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{%- endfor %}
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.return_call_stack_jump
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{% endfor %}
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; static jump table
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.define_eval prev, OFFSET
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; conditions
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{%- for c in conditions %}
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; condition: {{ c.id }}
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.org jump_table_conditions_if_{{ c.id }}
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.bytes conditions_if_{{ c.id }}
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{%- if !c.data.1.is_empty() %}
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.org jump_table_conditions_else_{{ c.id }}
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.bytes conditions_else_{{ c.id }}
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{%- endif %}
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{% endfor %}
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; words
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{%- for w in words %}
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.org jump_table_words_{{ w.id }}
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.bytes words_{{ w.id }}
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{% endfor %}
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.org prev
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.delete prev
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; main
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main:
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.org MAIN_JUMPER
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ts main
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tlr CORE_REG_PC
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.org main
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{%- for node in main %}
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{{ node }}
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{%- endfor %}
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.std_stop
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