RaySollium99/picodrive
1
0
Fork 0
mirror of https://github.com/RaySollium99/picodrive.git synced 2025-09-05 15:27:46 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

sh2 drc, add detection for in-memory polling

Browse source
This commit is contained in:
kub 2019-05-02 23:16:55 +02:00
parent 213b7f42c1
commit 397ccdc6cf
9 changed files with 224 additions and 113 deletions
Download patch file Download diff file Expand all files Collapse all files

94
cpu/sh2/compiler.c
View file

@ -532,6 +532,9 @@ static void (*sh2_drc_test_irq)(void);
static u32 REGPARM(1) (*sh2_drc_read8)(u32 a);
static u32 REGPARM(1) (*sh2_drc_read16)(u32 a);
static u32 REGPARM(1) (*sh2_drc_read32)(u32 a);
static u32 REGPARM(1) (*sh2_drc_read8_poll)(u32 a);
static u32 REGPARM(1) (*sh2_drc_read16_poll)(u32 a);
static u32 REGPARM(1) (*sh2_drc_read32_poll)(u32 a);
static void REGPARM(2) (*sh2_drc_write8)(u32 a, u32 d);
static void REGPARM(2) (*sh2_drc_write16)(u32 a, u32 d);
static void REGPARM(2) (*sh2_drc_write32)(u32 a, u32 d);
@ -540,6 +543,7 @@ static void REGPARM(2) (*sh2_drc_write32)(u32 a, u32 d);
#define MF_SIZEMASK 0x03 // size of access
#define MF_POSTINCR 0x10 // post increment (for read_rr)
#define MF_PREDECR MF_POSTINCR // pre decrement (for write_rr)
#define MF_POLLING 0x20 // include polling check in read
// address space stuff
static int dr_is_rom(u32 a)
@ -2263,11 +2267,18 @@ static int emit_memhandler_read(int size)
rcache_evict_vreg(guest_regs[SHR_SR].vreg);
#endif
switch (size & MF_SIZEMASK) {
case 0: emith_call(sh2_drc_read8); break; // 8
case 1: emith_call(sh2_drc_read16); break; // 16
case 2: emith_call(sh2_drc_read32); break; // 32
}
if (size & MF_POLLING)
switch (size & MF_SIZEMASK) {
case 0: emith_call(sh2_drc_read8_poll); break; // 8
case 1: emith_call(sh2_drc_read16_poll); break; // 16
case 2: emith_call(sh2_drc_read32_poll); break; // 32
}
else
switch (size & MF_SIZEMASK) {
case 0: emith_call(sh2_drc_read8); break; // 8
case 1: emith_call(sh2_drc_read16); break; // 16
case 2: emith_call(sh2_drc_read32); break; // 32
}
rcache_invalidate_tmp();
return rcache_get_tmp_ret();
@ -2545,6 +2556,7 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id)
struct drcf {
int delay_reg:8;
u32 loop_type:8;
u32 polling:8;
u32 test_irq:1;
u32 pending_branch_direct:1;
u32 pending_branch_indirect:1;
@ -2769,6 +2781,7 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id)
#if LOOP_DETECTION
drcf.loop_type = op_flags[i] & OF_LOOP;
drcf.delay_reg = -1;
drcf.polling = (drcf.loop_type == OF_POLL_LOOP ? MF_POLLING : 0);
#endif
// must update PC
@ -3176,7 +3189,7 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id)
case 0x0c: // MOV.B @(R0,Rm),Rn 0000nnnnmmmm1100
case 0x0d: // MOV.W @(R0,Rm),Rn 0000nnnnmmmm1101
case 0x0e: // MOV.L @(R0,Rm),Rn 0000nnnnmmmm1110
emit_indirect_indexed_read(sh2, GET_Rn(), SHR_R0, GET_Rm(), op & 3);
emit_indirect_indexed_read(sh2, GET_Rn(), SHR_R0, GET_Rm(), (op & 3) | drcf.polling);
goto end_op;
case 0x0f: // MAC.L @Rm+,@Rn+ 0000nnnnmmmm1111
emit_indirect_read_double(sh2, &tmp, &tmp2, GET_Rn(), GET_Rm(), 2);
@ -3700,7 +3713,7 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id)
/////////////////////////////////////////////
case 0x05: // MOV.L @(disp,Rm),Rn 0101nnnnmmmmdddd
emit_memhandler_read_rr(sh2, GET_Rn(), GET_Rm(), (op & 0x0f) * 4, 2);
emit_memhandler_read_rr(sh2, GET_Rn(), GET_Rm(), (op & 0x0f) * 4, 2 | drcf.polling);
goto end_op;
/////////////////////////////////////////////
@ -3713,7 +3726,7 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id)
case 0x04: // MOV.B @Rm+,Rn 0110nnnnmmmm0100
case 0x05: // MOV.W @Rm+,Rn 0110nnnnmmmm0101
case 0x06: // MOV.L @Rm+,Rn 0110nnnnmmmm0110
tmp = ((op & 7) >= 4 && GET_Rn() != GET_Rm()) ? MF_POSTINCR : 0;
tmp = ((op & 7) >= 4 && GET_Rn() != GET_Rm()) ? MF_POSTINCR : drcf.polling;
emit_memhandler_read_rr(sh2, GET_Rn(), GET_Rm(), 0, (op & 3) | tmp);
goto end_op;
case 0x03: // MOV Rm,Rn 0110nnnnmmmm0011
@ -3791,7 +3804,7 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id)
case 0x0400: // MOV.B @(disp,Rm),R0 10000100mmmmdddd
case 0x0500: // MOV.W @(disp,Rm),R0 10000101mmmmdddd
tmp = (op & 0x100) >> 8;
emit_memhandler_read_rr(sh2, SHR_R0, GET_Rm(), (op & 0x0f) << tmp, tmp);
emit_memhandler_read_rr(sh2, SHR_R0, GET_Rm(), (op & 0x0f) << tmp, tmp | drcf.polling);
goto end_op;
case 0x0800: // CMP/EQ #imm,R0 10001000iiiiiiii
tmp2 = rcache_get_reg(SHR_R0, RC_GR_READ, NULL);
@ -3817,7 +3830,7 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id)
case 0x0500: // MOV.W @(disp,GBR),R0 11000101dddddddd
case 0x0600: // MOV.L @(disp,GBR),R0 11000110dddddddd
tmp = (op & 0x300) >> 8;
emit_memhandler_read_rr(sh2, SHR_R0, SHR_GBR, (op & 0xff) << tmp, tmp);
emit_memhandler_read_rr(sh2, SHR_R0, SHR_GBR, (op & 0xff) << tmp, tmp | drcf.polling);
goto end_op;
case 0x0800: // TST #imm,R0 11001000iiiiiiii
tmp = rcache_get_reg(SHR_R0, RC_GR_READ, NULL);
@ -3843,7 +3856,7 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id)
}
goto end_op;
case 0x0c00: // TST.B #imm,@(R0,GBR) 11001100iiiiiiii
tmp = emit_indirect_indexed_read(sh2, SHR_TMP, SHR_R0, SHR_GBR, 0);
tmp = emit_indirect_indexed_read(sh2, SHR_TMP, SHR_R0, SHR_GBR, 0 | drcf.polling);
sr = rcache_get_reg(SHR_SR, RC_GR_RMW, NULL);
emith_bic_r_imm(sr, T);
emith_tst_r_imm(tmp, op & 0xff);
@ -4149,6 +4162,56 @@ static void sh2_generate_utils(void)
emith_jump_reg(arg2);
emith_flush();
// d = sh2_drc_read8_poll(u32 a)
sh2_drc_read8_poll = (void *)tcache_ptr;
emith_ctx_read_ptr(arg1, offsetof(SH2, read8_map));
emith_sh2_rcall(arg0, arg1, arg2, arg3);
EMITH_SJMP_START(DCOND_CC);
emith_move_r_r_ptr_c(DCOND_CS, arg1, CONTEXT_REG);
emith_jump_reg_c(DCOND_CS, arg2);
EMITH_SJMP_END(DCOND_CC);
emith_and_r_r_r(arg1, arg0, arg3);
emith_eor_r_imm(arg1, 1);
emith_read8s_r_r_r(arg1, arg1, arg2);
emith_push_ret(arg1);
emith_move_r_r_ptr(arg1, CONTEXT_REG);
emith_call(p32x_sh2_poll_memory);
emith_pop_and_ret(RET_REG);
emith_flush();
// d = sh2_drc_read16_poll(u32 a)
sh2_drc_read16_poll = (void *)tcache_ptr;
emith_ctx_read_ptr(arg1, offsetof(SH2, read16_map));
emith_sh2_rcall(arg0, arg1, arg2, arg3);
EMITH_SJMP_START(DCOND_CC);
emith_move_r_r_ptr_c(DCOND_CS, arg1, CONTEXT_REG);
emith_jump_reg_c(DCOND_CS, arg2);
EMITH_SJMP_END(DCOND_CC);
emith_and_r_r_r(arg1, arg0, arg3);
emith_read16s_r_r_r(arg1, arg1, arg2);
emith_push_ret(arg1);
emith_move_r_r_ptr(arg1, CONTEXT_REG);
emith_call(p32x_sh2_poll_memory);
emith_pop_and_ret(RET_REG);
emith_flush();
// d = sh2_drc_read32_poll(u32 a)
sh2_drc_read32_poll = (void *)tcache_ptr;
emith_ctx_read_ptr(arg1, offsetof(SH2, read32_map));
emith_sh2_rcall(arg0, arg1, arg2, arg3);
EMITH_SJMP_START(DCOND_CC);
emith_move_r_r_ptr_c(DCOND_CS, arg1, CONTEXT_REG);
emith_jump_reg_c(DCOND_CS, arg2);
EMITH_SJMP_END(DCOND_CC);
emith_and_r_r_r(arg1, arg0, arg3);
emith_read_r_r_r(arg1, arg1, arg2);
emith_ror(arg1, arg1, 16);
emith_push_ret(arg1);
emith_move_r_r_ptr(arg1, CONTEXT_REG);
emith_call(p32x_sh2_poll_memory);
emith_pop_and_ret(RET_REG);
emith_flush();
// sh2_drc_exit(void)
sh2_drc_exit = (void *)tcache_ptr;
emit_do_static_regs(1, arg2);
@ -4289,6 +4352,9 @@ static void sh2_generate_utils(void)
MAKE_WRITE_WRAPPER(sh2_drc_write8);
MAKE_WRITE_WRAPPER(sh2_drc_write16);
MAKE_WRITE_WRAPPER(sh2_drc_write32);
MAKE_READ_WRAPPER(sh2_drc_read8_poll);
MAKE_READ_WRAPPER(sh2_drc_read16_poll);
MAKE_READ_WRAPPER(sh2_drc_read32_poll);
#endif
emith_pool_commit(0);
@ -4304,6 +4370,9 @@ static void sh2_generate_utils(void)
host_dasm_new_symbol(sh2_drc_read8);
host_dasm_new_symbol(sh2_drc_read16);
host_dasm_new_symbol(sh2_drc_read32);
host_dasm_new_symbol(sh2_drc_read8_poll);
host_dasm_new_symbol(sh2_drc_read16_poll);
host_dasm_new_symbol(sh2_drc_read32_poll);
#endif
}
@ -5396,11 +5465,13 @@ u16 scan_block(u32 base_pc, int is_slave, u8 *op_flags, u32 *end_pc_out,
opd->source = BITMASK2(GET_Rm(), SHR_MEM);
opd->dest = BITMASK1(SHR_R0);
opd->imm = (op & 0x0f);
op_flags[i] |= OF_POLL_INSN;
break;
case 0x0500: // MOV.W @(disp,Rm),R0 10000101mmmmdddd
opd->source = BITMASK2(GET_Rm(), SHR_MEM);
opd->dest = BITMASK1(SHR_R0);
opd->imm = (op & 0x0f) * 2;
op_flags[i] |= OF_POLL_INSN;
break;
case 0x0800: // CMP/EQ #imm,R0 10001000iiiiiiii
opd->source = BITMASK1(SHR_R0);
@ -5539,6 +5610,7 @@ u16 scan_block(u32 base_pc, int is_slave, u8 *op_flags, u32 *end_pc_out,
opd->source = BITMASK3(SHR_GBR, SHR_R0, SHR_MEM);
opd->dest = BITMASK1(SHR_T);
opd->imm = op & 0xff;
op_flags[i] |= OF_POLL_INSN;
opd->cycles = 3;
break;
case 0x0d00: // AND.B #imm,@(R0,GBR) 11001101iiiiiiii