target/m68k: rename M68K_FEATURE_M68000 to M68K_FEATURE_M68K

The M68K_FEATURE_M68000 feature is misleading in that its name suggests the feature
is defined just for Motorola 68000 CPUs, whilst in fact it is defined for all
Motorola 680X0 CPUs.

In order to avoid confusion with the other M68K_FEATURE_M680X0 constants which
define the features available for specific Motorola CPU models, rename
M68K_FEATURE_M68000 to M68K_FEATURE_M68K and add comments to clarify its usage.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220917112515.83905-2-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Mark Cave-Ayland 2022-09-17 12:25:12 +01:00 committed by Laurent Vivier
parent 214c6002d0
commit aece90d85d
5 changed files with 75 additions and 74 deletions

View File

@ -110,7 +110,7 @@ static void m68000_cpu_initfn(Object *obj)
M68kCPU *cpu = M68K_CPU(obj);
CPUM68KState *env = &cpu->env;
m68k_set_feature(env, M68K_FEATURE_M68000);
m68k_set_feature(env, M68K_FEATURE_M68K);
m68k_set_feature(env, M68K_FEATURE_USP);
m68k_set_feature(env, M68K_FEATURE_WORD_INDEX);
m68k_set_feature(env, M68K_FEATURE_MOVEP);

View File

@ -480,8 +480,9 @@ void do_m68k_semihosting(CPUM68KState *env, int nr);
*/
enum m68k_features {
/* Base m68k instruction set */
M68K_FEATURE_M68000,
/* Base Motorola CPU set (not set for Coldfire CPUs) */
M68K_FEATURE_M68K,
/* Motorola CPU feature sets */
M68K_FEATURE_M68010,
M68K_FEATURE_M68020,
M68K_FEATURE_M68030,

View File

@ -460,7 +460,7 @@ void m68k_switch_sp(CPUM68KState *env)
int new_sp;
env->sp[env->current_sp] = env->aregs[7];
if (m68k_feature(env, M68K_FEATURE_M68000)) {
if (m68k_feature(env, M68K_FEATURE_M68K)) {
if (env->sr & SR_S) {
/* SR:Master-Mode bit unimplemented then ISP is not available */
if (!m68k_feature(env, M68K_FEATURE_MSP) || env->sr & SR_M) {

View File

@ -432,7 +432,7 @@ static void m68k_interrupt_all(CPUM68KState *env, int is_hw)
static void do_interrupt_all(CPUM68KState *env, int is_hw)
{
if (m68k_feature(env, M68K_FEATURE_M68000)) {
if (m68k_feature(env, M68K_FEATURE_M68K)) {
m68k_interrupt_all(env, is_hw);
return;
}

View File

@ -471,7 +471,7 @@ static TCGv gen_lea_indexed(CPUM68KState *env, DisasContext *s, TCGv base)
if ((ext & 0x800) == 0 && !m68k_feature(s->env, M68K_FEATURE_WORD_INDEX))
return NULL_QREG;
if (m68k_feature(s->env, M68K_FEATURE_M68000) &&
if (m68k_feature(s->env, M68K_FEATURE_M68K) &&
!m68k_feature(s->env, M68K_FEATURE_SCALED_INDEX)) {
ext &= ~(3 << 9);
}
@ -804,7 +804,7 @@ static TCGv gen_lea_mode(CPUM68KState *env, DisasContext *s,
reg = get_areg(s, reg0);
tmp = mark_to_release(s, tcg_temp_new());
if (reg0 == 7 && opsize == OS_BYTE &&
m68k_feature(s->env, M68K_FEATURE_M68000)) {
m68k_feature(s->env, M68K_FEATURE_M68K)) {
tcg_gen_subi_i32(tmp, reg, 2);
} else {
tcg_gen_subi_i32(tmp, reg, opsize_bytes(opsize));
@ -888,7 +888,7 @@ static TCGv gen_ea_mode(CPUM68KState *env, DisasContext *s, int mode, int reg0,
if (what == EA_STORE || !addrp) {
TCGv tmp = tcg_temp_new();
if (reg0 == 7 && opsize == OS_BYTE &&
m68k_feature(s->env, M68K_FEATURE_M68000)) {
m68k_feature(s->env, M68K_FEATURE_M68K)) {
tcg_gen_addi_i32(tmp, reg, 2);
} else {
tcg_gen_addi_i32(tmp, reg, opsize_bytes(opsize));
@ -2210,7 +2210,7 @@ DISAS_INSN(bitop_im)
op = (insn >> 6) & 3;
bitnum = read_im16(env, s);
if (m68k_feature(s->env, M68K_FEATURE_M68000)) {
if (m68k_feature(s->env, M68K_FEATURE_M68K)) {
if (bitnum & 0xfe00) {
disas_undef(env, s, insn);
return;
@ -2897,7 +2897,7 @@ DISAS_INSN(mull)
return;
}
SRC_EA(env, src1, OS_LONG, 0, NULL);
if (m68k_feature(s->env, M68K_FEATURE_M68000)) {
if (m68k_feature(s->env, M68K_FEATURE_M68K)) {
tcg_gen_movi_i32(QREG_CC_C, 0);
if (sign) {
tcg_gen_muls2_i32(QREG_CC_N, QREG_CC_V, src1, DREG(ext, 12));
@ -3492,7 +3492,7 @@ static inline void shift_im(DisasContext *s, uint16_t insn, int opsize)
* while M68000 sets if the most significant bit is changed at
* any time during the shift operation.
*/
if (!logical && m68k_feature(s->env, M68K_FEATURE_M68000)) {
if (!logical && m68k_feature(s->env, M68K_FEATURE_M68K)) {
/* if shift count >= bits, V is (reg != 0) */
if (count >= bits) {
tcg_gen_setcond_i32(TCG_COND_NE, QREG_CC_V, reg, QREG_CC_V);
@ -3576,7 +3576,7 @@ static inline void shift_reg(DisasContext *s, uint16_t insn, int opsize)
* int64_t t = (int64_t)(intN_t)reg << count;
* V = ((s ^ t) & (-1 << (bits - 1))) != 0
*/
if (!logical && m68k_feature(s->env, M68K_FEATURE_M68000)) {
if (!logical && m68k_feature(s->env, M68K_FEATURE_M68K)) {
TCGv_i64 tt = tcg_const_i64(32);
/* if shift is greater than 32, use 32 */
tcg_gen_movcond_i64(TCG_COND_GT, s64, s64, tt, tt, s64);
@ -3669,7 +3669,7 @@ DISAS_INSN(shift_mem)
* while M68000 sets if the most significant bit is changed at
* any time during the shift operation
*/
if (!logical && m68k_feature(s->env, M68K_FEATURE_M68000)) {
if (!logical && m68k_feature(s->env, M68K_FEATURE_M68K)) {
src = gen_extend(s, src, OS_WORD, 1);
tcg_gen_xor_i32(QREG_CC_V, QREG_CC_N, src);
}
@ -4620,7 +4620,7 @@ DISAS_INSN(move_from_sr)
{
TCGv sr;
if (IS_USER(s) && !m68k_feature(env, M68K_FEATURE_M68000)) {
if (IS_USER(s) && !m68k_feature(env, M68K_FEATURE_M68K)) {
gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE);
return;
}
@ -6035,7 +6035,7 @@ void register_m68k_insns (CPUM68KState *env)
} while(0)
BASE(undef, 0000, 0000);
INSN(arith_im, 0080, fff8, CF_ISA_A);
INSN(arith_im, 0000, ff00, M68000);
INSN(arith_im, 0000, ff00, M68K);
INSN(chk2, 00c0, f9c0, CHK2);
INSN(bitrev, 00c0, fff8, CF_ISA_APLUSC);
BASE(bitop_reg, 0100, f1c0);
@ -6044,26 +6044,26 @@ void register_m68k_insns (CPUM68KState *env)
BASE(bitop_reg, 01c0, f1c0);
INSN(movep, 0108, f138, MOVEP);
INSN(arith_im, 0280, fff8, CF_ISA_A);
INSN(arith_im, 0200, ff00, M68000);
INSN(undef, 02c0, ffc0, M68000);
INSN(arith_im, 0200, ff00, M68K);
INSN(undef, 02c0, ffc0, M68K);
INSN(byterev, 02c0, fff8, CF_ISA_APLUSC);
INSN(arith_im, 0480, fff8, CF_ISA_A);
INSN(arith_im, 0400, ff00, M68000);
INSN(undef, 04c0, ffc0, M68000);
INSN(arith_im, 0600, ff00, M68000);
INSN(undef, 06c0, ffc0, M68000);
INSN(arith_im, 0400, ff00, M68K);
INSN(undef, 04c0, ffc0, M68K);
INSN(arith_im, 0600, ff00, M68K);
INSN(undef, 06c0, ffc0, M68K);
INSN(ff1, 04c0, fff8, CF_ISA_APLUSC);
INSN(arith_im, 0680, fff8, CF_ISA_A);
INSN(arith_im, 0c00, ff38, CF_ISA_A);
INSN(arith_im, 0c00, ff00, M68000);
INSN(arith_im, 0c00, ff00, M68K);
BASE(bitop_im, 0800, ffc0);
BASE(bitop_im, 0840, ffc0);
BASE(bitop_im, 0880, ffc0);
BASE(bitop_im, 08c0, ffc0);
INSN(arith_im, 0a80, fff8, CF_ISA_A);
INSN(arith_im, 0a00, ff00, M68000);
INSN(arith_im, 0a00, ff00, M68K);
#if defined(CONFIG_SOFTMMU)
INSN(moves, 0e00, ff00, M68000);
INSN(moves, 0e00, ff00, M68K);
#endif
INSN(cas, 0ac0, ffc0, CAS);
INSN(cas, 0cc0, ffc0, CAS);
@ -6073,44 +6073,44 @@ void register_m68k_insns (CPUM68KState *env)
BASE(move, 1000, f000);
BASE(move, 2000, f000);
BASE(move, 3000, f000);
INSN(chk, 4000, f040, M68000);
INSN(chk, 4000, f040, M68K);
INSN(strldsr, 40e7, ffff, CF_ISA_APLUSC);
INSN(negx, 4080, fff8, CF_ISA_A);
INSN(negx, 4000, ff00, M68000);
INSN(undef, 40c0, ffc0, M68000);
INSN(negx, 4000, ff00, M68K);
INSN(undef, 40c0, ffc0, M68K);
INSN(move_from_sr, 40c0, fff8, CF_ISA_A);
INSN(move_from_sr, 40c0, ffc0, M68000);
INSN(move_from_sr, 40c0, ffc0, M68K);
BASE(lea, 41c0, f1c0);
BASE(clr, 4200, ff00);
BASE(undef, 42c0, ffc0);
INSN(move_from_ccr, 42c0, fff8, CF_ISA_A);
INSN(move_from_ccr, 42c0, ffc0, M68000);
INSN(move_from_ccr, 42c0, ffc0, M68K);
INSN(neg, 4480, fff8, CF_ISA_A);
INSN(neg, 4400, ff00, M68000);
INSN(undef, 44c0, ffc0, M68000);
INSN(neg, 4400, ff00, M68K);
INSN(undef, 44c0, ffc0, M68K);
BASE(move_to_ccr, 44c0, ffc0);
INSN(not, 4680, fff8, CF_ISA_A);
INSN(not, 4600, ff00, M68000);
INSN(not, 4600, ff00, M68K);
#if defined(CONFIG_SOFTMMU)
BASE(move_to_sr, 46c0, ffc0);
#endif
INSN(nbcd, 4800, ffc0, M68000);
INSN(linkl, 4808, fff8, M68000);
INSN(nbcd, 4800, ffc0, M68K);
INSN(linkl, 4808, fff8, M68K);
BASE(pea, 4840, ffc0);
BASE(swap, 4840, fff8);
INSN(bkpt, 4848, fff8, BKPT);
INSN(movem, 48d0, fbf8, CF_ISA_A);
INSN(movem, 48e8, fbf8, CF_ISA_A);
INSN(movem, 4880, fb80, M68000);
INSN(movem, 4880, fb80, M68K);
BASE(ext, 4880, fff8);
BASE(ext, 48c0, fff8);
BASE(ext, 49c0, fff8);
BASE(tst, 4a00, ff00);
INSN(tas, 4ac0, ffc0, CF_ISA_B);
INSN(tas, 4ac0, ffc0, M68000);
INSN(tas, 4ac0, ffc0, M68K);
#if defined(CONFIG_SOFTMMU)
INSN(halt, 4ac8, ffff, CF_ISA_A);
INSN(halt, 4ac8, ffff, M68060);
INSN(halt, 4ac8, ffff, M68K);
#endif
INSN(pulse, 4acc, ffff, CF_ISA_A);
BASE(illegal, 4afc, ffff);
@ -6125,7 +6125,7 @@ void register_m68k_insns (CPUM68KState *env)
#if defined(CONFIG_SOFTMMU)
INSN(move_to_usp, 4e60, fff8, USP);
INSN(move_from_usp, 4e68, fff8, USP);
INSN(reset, 4e70, ffff, M68000);
INSN(reset, 4e70, ffff, M68K);
BASE(stop, 4e72, ffff);
BASE(rte, 4e73, ffff);
INSN(cf_movec, 4e7b, ffff, CF_ISA_A);
@ -6134,15 +6134,15 @@ void register_m68k_insns (CPUM68KState *env)
BASE(nop, 4e71, ffff);
INSN(rtd, 4e74, ffff, RTD);
BASE(rts, 4e75, ffff);
INSN(trapv, 4e76, ffff, M68000);
INSN(rtr, 4e77, ffff, M68000);
INSN(trapv, 4e76, ffff, M68K);
INSN(rtr, 4e77, ffff, M68K);
BASE(jump, 4e80, ffc0);
BASE(jump, 4ec0, ffc0);
INSN(addsubq, 5000, f080, M68000);
INSN(addsubq, 5000, f080, M68K);
BASE(addsubq, 5080, f0c0);
INSN(scc, 50c0, f0f8, CF_ISA_A); /* Scc.B Dx */
INSN(scc, 50c0, f0c0, M68000); /* Scc.B <EA> */
INSN(dbcc, 50c8, f0f8, M68000);
INSN(scc, 50c0, f0c0, M68K); /* Scc.B <EA> */
INSN(dbcc, 50c8, f0f8, M68K);
INSN(trapcc, 50fa, f0fe, TRAPCC); /* opmode 010, 011 */
INSN(trapcc, 50fc, f0ff, TRAPCC); /* opmode 100 */
INSN(trapcc, 51fa, fffe, CF_ISA_A); /* TPF (trapf) opmode 010, 011 */
@ -6161,15 +6161,15 @@ void register_m68k_insns (CPUM68KState *env)
INSN(mvzs, 7100, f100, CF_ISA_B);
BASE(or, 8000, f000);
BASE(divw, 80c0, f0c0);
INSN(sbcd_reg, 8100, f1f8, M68000);
INSN(sbcd_mem, 8108, f1f8, M68000);
INSN(sbcd_reg, 8100, f1f8, M68K);
INSN(sbcd_mem, 8108, f1f8, M68K);
BASE(addsub, 9000, f000);
INSN(undef, 90c0, f0c0, CF_ISA_A);
INSN(subx_reg, 9180, f1f8, CF_ISA_A);
INSN(subx_reg, 9100, f138, M68000);
INSN(subx_mem, 9108, f138, M68000);
INSN(subx_reg, 9100, f138, M68K);
INSN(subx_mem, 9108, f138, M68K);
INSN(suba, 91c0, f1c0, CF_ISA_A);
INSN(suba, 90c0, f0c0, M68000);
INSN(suba, 90c0, f0c0, M68K);
BASE(undef_mac, a000, f000);
INSN(mac, a000, f100, CF_EMAC);
@ -6190,41 +6190,41 @@ void register_m68k_insns (CPUM68KState *env)
INSN(cmpa, b0c0, f1c0, CF_ISA_B); /* cmpa.w */
INSN(cmp, b080, f1c0, CF_ISA_A);
INSN(cmpa, b1c0, f1c0, CF_ISA_A);
INSN(cmp, b000, f100, M68000);
INSN(eor, b100, f100, M68000);
INSN(cmpm, b108, f138, M68000);
INSN(cmpa, b0c0, f0c0, M68000);
INSN(cmp, b000, f100, M68K);
INSN(eor, b100, f100, M68K);
INSN(cmpm, b108, f138, M68K);
INSN(cmpa, b0c0, f0c0, M68K);
INSN(eor, b180, f1c0, CF_ISA_A);
BASE(and, c000, f000);
INSN(exg_dd, c140, f1f8, M68000);
INSN(exg_aa, c148, f1f8, M68000);
INSN(exg_da, c188, f1f8, M68000);
INSN(exg_dd, c140, f1f8, M68K);
INSN(exg_aa, c148, f1f8, M68K);
INSN(exg_da, c188, f1f8, M68K);
BASE(mulw, c0c0, f0c0);
INSN(abcd_reg, c100, f1f8, M68000);
INSN(abcd_mem, c108, f1f8, M68000);
INSN(abcd_reg, c100, f1f8, M68K);
INSN(abcd_mem, c108, f1f8, M68K);
BASE(addsub, d000, f000);
INSN(undef, d0c0, f0c0, CF_ISA_A);
INSN(addx_reg, d180, f1f8, CF_ISA_A);
INSN(addx_reg, d100, f138, M68000);
INSN(addx_mem, d108, f138, M68000);
INSN(addx_reg, d100, f138, M68K);
INSN(addx_mem, d108, f138, M68K);
INSN(adda, d1c0, f1c0, CF_ISA_A);
INSN(adda, d0c0, f0c0, M68000);
INSN(adda, d0c0, f0c0, M68K);
INSN(shift_im, e080, f0f0, CF_ISA_A);
INSN(shift_reg, e0a0, f0f0, CF_ISA_A);
INSN(shift8_im, e000, f0f0, M68000);
INSN(shift16_im, e040, f0f0, M68000);
INSN(shift_im, e080, f0f0, M68000);
INSN(shift8_reg, e020, f0f0, M68000);
INSN(shift16_reg, e060, f0f0, M68000);
INSN(shift_reg, e0a0, f0f0, M68000);
INSN(shift_mem, e0c0, fcc0, M68000);
INSN(rotate_im, e090, f0f0, M68000);
INSN(rotate8_im, e010, f0f0, M68000);
INSN(rotate16_im, e050, f0f0, M68000);
INSN(rotate_reg, e0b0, f0f0, M68000);
INSN(rotate8_reg, e030, f0f0, M68000);
INSN(rotate16_reg, e070, f0f0, M68000);
INSN(rotate_mem, e4c0, fcc0, M68000);
INSN(shift8_im, e000, f0f0, M68K);
INSN(shift16_im, e040, f0f0, M68K);
INSN(shift_im, e080, f0f0, M68K);
INSN(shift8_reg, e020, f0f0, M68K);
INSN(shift16_reg, e060, f0f0, M68K);
INSN(shift_reg, e0a0, f0f0, M68K);
INSN(shift_mem, e0c0, fcc0, M68K);
INSN(rotate_im, e090, f0f0, M68K);
INSN(rotate8_im, e010, f0f0, M68K);
INSN(rotate16_im, e050, f0f0, M68K);
INSN(rotate_reg, e0b0, f0f0, M68K);
INSN(rotate8_reg, e030, f0f0, M68K);
INSN(rotate16_reg, e070, f0f0, M68K);
INSN(rotate_mem, e4c0, fcc0, M68K);
INSN(bfext_mem, e9c0, fdc0, BITFIELD); /* bfextu & bfexts */
INSN(bfext_reg, e9c0, fdf8, BITFIELD);
INSN(bfins_mem, efc0, ffc0, BITFIELD);