59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/*
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* Source file for helper functions.
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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 <stdio.h>
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#include "include/defs.h"
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void dump_regs(pstate_t* s)
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{
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printf("r0: 0x%08x r1: 0x%08x r2: 0x%08x, r3: 0x%08x\n", s->gprs[0], s->gprs[1], s->gprs[2], s->gprs[3]);
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printf("r4: 0x%08x r5: 0x%08x r6: 0x%08x, r7: 0x%08x\n", s->gprs[4], s->gprs[5], s->gprs[6], s->gprs[7]);
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printf("r8: 0x%08x r9: 0x%08x r10: 0x%08x, r11: 0x%08x\n", s->gprs[8], s->gprs[9], s->gprs[10], s->gprs[11]);
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printf("r12: 0x%08x r13: 0x%08x r14: 0x%08x, r15: 0x%08x\n", s->gprs[12], s->gprs[13], s->gprs[14], s->gprs[15]);
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printf("sp: 0x%04x pc: 0x%04x\n", s->sp, s->pc);
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printf("\n");
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}
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misc_instruction_t convert_raw2misc(raw_instruction_t* r)
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{
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misc_instruction_t i;
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uint32_t inst = (uint32_t) *r;
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inst = __builtin_bswap32(inst);
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i.opcode = (inst >> 23) & 0x3f;
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i.imm = 0xffffff;
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return i;
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}
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register_instruction_t convert_raw2register(raw_instruction_t* r)
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{
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register_instruction_t i;
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uint32_t inst = (uint32_t) *r;
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i.opcode = (inst >> 23) & 0x7f;
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i.dest = (inst >> 18) & 0x1f;
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i.src1 = (inst >> 13) & 0x1f;
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i.src2 = (inst >> 8) & 0x1f;
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#ifdef _DEBUG
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printf("convert_raw2register: opcode: 0b%04b, dest: 0b%05b, src1: 0b%021b, src2: 0b%021b\n", i.opcode, i.dest, i.src1, i.src2);
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#endif
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return i;
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}
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ls_instruction_t convert_raw2ls(raw_instruction_t* r)
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{
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ls_instruction_t i;
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uint32_t inst = (uint32_t) *r;
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i.opcode = (inst >> 26) & 0xf;
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i.reg = (inst >> 21) & 0x1f;
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i.imm = inst & 0x1FFFFF;
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#ifdef _DEBUG
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printf("convert_raw2ls: opcode: 0b%04b, reg: 0b%05b, imm: 0b%021b\n", i.opcode, i.reg, i.imm);
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#endif
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return i;
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}
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