50 lines
733 B
C
50 lines
733 B
C
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/*
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* Source file for miscellaneous operations.
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*
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* CAR (Cool ARM Ripoff) copyright (c) 2026 David J Goeke. All rights reserved.
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* Unauthorized (re)distribution is prohibited.
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*/
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#include "include/defs.h"
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DEFINE_OP(nop)
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{
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OP_RETURN_NORMAL
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}
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DEFINE_OP(call)
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{
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misc_instruction_t i = convert_raw2misc(ri);
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_push(state->pc + 1, state);
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uint32_t addr = (uint32_t) (state->pc + (int32_t) i.imm);
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state->pc = addr;
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OP_RETURN_NO_INC_PC
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}
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DEFINE_OP(ret)
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{
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uint32_t r_addr;
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_pop(&r_addr, state);
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state->pc = r_addr;
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OP_RETURN_NO_INC_PC
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}
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DEFINE_OP(jmp)
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{
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misc_instruction_t i = convert_raw2misc(ri);
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uint32_t addr = (uint32_t) (state->pc + (int32_t) i.imm);
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state->pc = addr;
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OP_RETURN_NO_INC_PC
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}
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