86Box/src/codegen_new/codegen_accumulate.c

#include <stdint.h>
#include <86box/86box.h>
#include "cpu.h"
#include <86box/mem.h>

#include "codegen.h"
#include "codegen_accumulate.h"
#include "codegen_ir.h"

static struct
{
        int count;
        int dest_reg;
} acc_regs[] =
{
        [ACCREG_ins]    = {0, IREG_ins},
        [ACCREG_cycles] = {0, IREG_cycles},
};

void codegen_accumulate(ir_data_t *ir, int acc_reg, int delta)
{
        acc_regs[acc_reg].count += delta;

	if ((acc_reg == ACCREG_cycles) && (delta != 0)) {
		uop_ADD_IMM(ir, IREG_acycs, IREG_acycs, -delta);
	}
}

void codegen_accumulate_flush(ir_data_t *ir)
{
        int c;
        
        for (c = 0; c < ACCREG_COUNT; c++)
        {
                if (acc_regs[c].count)
		{
                        uop_ADD_IMM(ir, acc_regs[c].dest_reg, acc_regs[c].dest_reg, acc_regs[c].count);
                }

                acc_regs[c].count = 0;
        }
}

void codegen_accumulate_reset()
{
        int c;

        for (c = 0; c < ACCREG_COUNT; c++)
                acc_regs[c].count = 0;
}