64 lines
1.3 KiB
NASM
64 lines
1.3 KiB
NASM
.include "$lib/core.asm"
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.include "$lib/std.asm"
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.include "$lib/main.asm"
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.define MEM_LOOP_I, CORE_MEM_MEM
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.define MEM_LOOP_J, (MEM_LOOP_I + 1)
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.define MEM_CALL_STACK_PTR, (MEM_LOOP_J + 1)
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.define MEM_ALLOC_PTR, (MEM_CALL_STACK_PTR + 16)
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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 call_stack_jump, call_stack_jump_arg_0_label, call_stack_jump_arg_1_offset
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.std_rset CORE_REG_C, call_stack_jump_arg_0_label
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.std_rset CORE_REG_D, (call_stack_jump_arg_1_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 return_call_stack_jump
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.std_jump return_call_stack_jump
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.endmacro
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.std_rset CORE_REG_A, MEM_CALL_STACK_PTR
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.std_set MEM_CALL_STACK_PTR
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.std_rset CORE_REG_A, (MEM_ALLOC_PTR + 1)
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.std_set MEM_ALLOC_PTR
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.jump_main
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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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