emit_math.c File Reference

Math operations for JIT code generation (x86-64 and ARM64). More...

#include "emit/emit_math.h"
#include "emit/emit.h"
#include "emit_internals.h"
#include <stdio.h>
#include <string.h>

Include dependency graph for emit_math.c:

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Macros
#define	EMIT_CHECK(x)
#define	EMIT_REG_NEEDS_REX(reg)   ((reg) >= 8)

Functions
static infix_status	emit_x86_rex (emit_context_t *ctx, bool w, bool r, bool x, bool b)
INFIX_API infix_status	emit_math_mov_imm (emit_context_t *ctx, emit_register_t dest, uint64_t imm)
INFIX_API infix_status	emit_math_movq_gpr_xmm (emit_context_t *ctx, emit_register_t gpr_dest, emit_register_t xmm_src)
INFIX_API infix_status	emit_math_mov_reg (emit_context_t *ctx, emit_register_t dest, emit_register_t src)
INFIX_API infix_status	emit_math_add (emit_context_t *ctx, emit_register_t dest, emit_register_t src)
INFIX_API infix_status	emit_math_add_imm (emit_context_t *ctx, emit_register_t dest, int32_t imm)
INFIX_API infix_status	emit_math_sub (emit_context_t *ctx, emit_register_t dest, emit_register_t src)
INFIX_API infix_status	emit_math_sub_imm (emit_context_t *ctx, emit_register_t dest, int32_t imm)
INFIX_API infix_status	emit_math_mul (emit_context_t *ctx, emit_register_t src)
INFIX_API infix_status	emit_math_imul_imm (emit_context_t *ctx, emit_register_t dest, int32_t imm)
INFIX_API infix_status	emit_math_and (emit_context_t *ctx, emit_register_t dest, emit_register_t src)
INFIX_API infix_status	emit_math_or (emit_context_t *ctx, emit_register_t dest, emit_register_t src)
INFIX_API infix_status	emit_math_xor (emit_context_t *ctx, emit_register_t dest, emit_register_t src)
INFIX_API infix_status	emit_math_not (emit_context_t *ctx, emit_register_t reg)
INFIX_API infix_status	emit_math_neg (emit_context_t *ctx, emit_register_t reg)
INFIX_API infix_status	emit_math_shl (emit_context_t *ctx, emit_register_t dest, emit_register_t src)
INFIX_API infix_status	emit_math_shr (emit_context_t *ctx, emit_register_t dest, emit_register_t src)
INFIX_API infix_status	emit_math_cmp (emit_context_t *ctx, emit_register_t a, emit_register_t b)
INFIX_API infix_status	emit_math_cmp_imm (emit_context_t *ctx, emit_register_t reg, int32_t imm)
INFIX_API infix_status	emit_math_test (emit_context_t *ctx, emit_register_t a, emit_register_t b)
INFIX_API infix_status	emit_math_jmp (emit_context_t *ctx, const char *label)
INFIX_API infix_status	emit_math_jmp_cc (emit_context_t *ctx, emit_cc_t cc, const char *label)
INFIX_API infix_status	emit_math_call (emit_context_t *ctx, const char *name)
INFIX_API infix_status	emit_math_prologue (emit_context_t *ctx)
INFIX_API infix_status	emit_math_epilogue (emit_context_t *ctx)
INFIX_API infix_status	emit_math_ret (emit_context_t *ctx)
INFIX_API infix_status	emit_math_push (emit_context_t *ctx, emit_register_t reg)
INFIX_API infix_status	emit_math_pop (emit_context_t *ctx, emit_register_t reg)
INFIX_API infix_status	emit_math_load_reg (emit_context_t *ctx, emit_register_t dest, emit_register_t base, int32_t offset)
INFIX_API infix_status	emit_math_store_reg (emit_context_t *ctx, emit_register_t base, int32_t offset, emit_register_t src)
INFIX_API infix_status	emit_math_load_sym (emit_context_t *ctx, emit_register_t dest, const char *sym)
INFIX_API infix_status	emit_math_store_sym (emit_context_t *ctx, const char *sym, emit_register_t src)
INFIX_API infix_status	emit_math_movsd_reg (emit_context_t *ctx, emit_register_t dest, emit_register_t src)
INFIX_API infix_status	emit_math_addsd (emit_context_t *ctx, emit_register_t dest, emit_register_t src)
INFIX_API infix_status	emit_math_subsd (emit_context_t *ctx, emit_register_t dest, emit_register_t src)

Variables
static const uint8_t	x86_jcc_opcodes [16]

Detailed Description

Math operations for JIT code generation (x86-64 and ARM64).

Copyright (c) 2025 Sanko Robinson

This source code is dual-licensed under the Artistic License 2.0 or the MIT License. You may choose to use the code under the terms of either license.

SPDX-License-Identifier: (Artistic-2.0 OR MIT)

Macro Definition Documentation

EMIT_CHECK

#define EMIT_CHECK

(

x

)

Value:

    do {                         \
        infix_status _s = (x);   \
        if (_s != INFIX_SUCCESS) \
            return _s;           \
    } while (0)

EMIT_REG_NEEDS_REX

#define EMIT_REG_NEEDS_REX

(

reg

)

((reg) >= 8)

Function Documentation

emit_math_add()

INFIX_API infix_status emit_math_add	(	emit_context_t *	ctx,
		emit_register_t	dest,
		emit_register_t	src
	)

emit_math_add_imm()

INFIX_API infix_status emit_math_add_imm	(	emit_context_t *	ctx,
		emit_register_t	dest,
		int32_t	imm
	)

emit_math_addsd()

INFIX_API infix_status emit_math_addsd	(	emit_context_t *	ctx,
		emit_register_t	dest,
		emit_register_t	src
	)

emit_math_and()

INFIX_API infix_status emit_math_and	(	emit_context_t *	ctx,
		emit_register_t	dest,
		emit_register_t	src
	)

emit_math_call()

INFIX_API infix_status emit_math_call	(	emit_context_t *	ctx,
		const char *	name
	)

emit_math_cmp()

INFIX_API infix_status emit_math_cmp	(	emit_context_t *	ctx,
		emit_register_t	a,
		emit_register_t	b
	)

emit_math_cmp_imm()

INFIX_API infix_status emit_math_cmp_imm	(	emit_context_t *	ctx,
		emit_register_t	reg,
		int32_t	imm
	)

emit_math_epilogue()

INFIX_API infix_status emit_math_epilogue

(

emit_context_t *

ctx

)

emit_math_imul_imm()

INFIX_API infix_status emit_math_imul_imm	(	emit_context_t *	ctx,
		emit_register_t	dest,
		int32_t	imm
	)

emit_math_jmp()

INFIX_API infix_status emit_math_jmp	(	emit_context_t *	ctx,
		const char *	label
	)

emit_math_jmp_cc()

INFIX_API infix_status emit_math_jmp_cc	(	emit_context_t *	ctx,
		emit_cc_t	cc,
		const char *	label
	)

emit_math_load_reg()

INFIX_API infix_status emit_math_load_reg	(	emit_context_t *	ctx,
		emit_register_t	dest,
		emit_register_t	base,
		int32_t	offset
	)

emit_math_load_sym()

INFIX_API infix_status emit_math_load_sym	(	emit_context_t *	ctx,
		emit_register_t	dest,
		const char *	sym
	)

emit_math_mov_imm()

INFIX_API infix_status emit_math_mov_imm	(	emit_context_t *	ctx,
		emit_register_t	dest,
		uint64_t	imm
	)

emit_math_mov_reg()

INFIX_API infix_status emit_math_mov_reg	(	emit_context_t *	ctx,
		emit_register_t	dest,
		emit_register_t	src
	)

emit_math_movq_gpr_xmm()

INFIX_API infix_status emit_math_movq_gpr_xmm	(	emit_context_t *	ctx,
		emit_register_t	gpr_dest,
		emit_register_t	xmm_src
	)

emit_math_movsd_reg()

INFIX_API infix_status emit_math_movsd_reg	(	emit_context_t *	ctx,
		emit_register_t	dest,
		emit_register_t	src
	)

emit_math_mul()

INFIX_API infix_status emit_math_mul	(	emit_context_t *	ctx,
		emit_register_t	src
	)

emit_math_neg()

INFIX_API infix_status emit_math_neg	(	emit_context_t *	ctx,
		emit_register_t	reg
	)

emit_math_not()

INFIX_API infix_status emit_math_not	(	emit_context_t *	ctx,
		emit_register_t	reg
	)

emit_math_or()

INFIX_API infix_status emit_math_or	(	emit_context_t *	ctx,
		emit_register_t	dest,
		emit_register_t	src
	)

emit_math_pop()

INFIX_API infix_status emit_math_pop	(	emit_context_t *	ctx,
		emit_register_t	reg
	)

emit_math_prologue()

INFIX_API infix_status emit_math_prologue

(

emit_context_t *

ctx

)

emit_math_push()

INFIX_API infix_status emit_math_push	(	emit_context_t *	ctx,
		emit_register_t	reg
	)

emit_math_ret()

INFIX_API infix_status emit_math_ret

(

emit_context_t *

ctx

)

emit_math_shl()

INFIX_API infix_status emit_math_shl	(	emit_context_t *	ctx,
		emit_register_t	dest,
		emit_register_t	src
	)

emit_math_shr()

INFIX_API infix_status emit_math_shr	(	emit_context_t *	ctx,
		emit_register_t	dest,
		emit_register_t	src
	)

emit_math_store_reg()

INFIX_API infix_status emit_math_store_reg	(	emit_context_t *	ctx,
		emit_register_t	base,
		int32_t	offset,
		emit_register_t	src
	)

emit_math_store_sym()

INFIX_API infix_status emit_math_store_sym	(	emit_context_t *	ctx,
		const char *	sym,
		emit_register_t	src
	)

emit_math_sub()

INFIX_API infix_status emit_math_sub	(	emit_context_t *	ctx,
		emit_register_t	dest,
		emit_register_t	src
	)

emit_math_sub_imm()

INFIX_API infix_status emit_math_sub_imm	(	emit_context_t *	ctx,
		emit_register_t	dest,
		int32_t	imm
	)

emit_math_subsd()

INFIX_API infix_status emit_math_subsd	(	emit_context_t *	ctx,
		emit_register_t	dest,
		emit_register_t	src
	)

emit_math_test()

INFIX_API infix_status emit_math_test	(	emit_context_t *	ctx,
		emit_register_t	a,
		emit_register_t	b
	)

emit_math_xor()

INFIX_API infix_status emit_math_xor	(	emit_context_t *	ctx,
		emit_register_t	dest,
		emit_register_t	src
	)

emit_x86_rex()

static infix_status emit_x86_rex ( emit_context_t *  ctx, bool  w, bool  r, bool  x, bool  b  )

static

Variable Documentation

x86_jcc_opcodes

const uint8_t x86_jcc_opcodes[16]

static

Initial value:

= {
    0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F}