From: notaz Date: Mon, 7 Dec 2009 12:30:56 +0000 (+0000) Subject: 32x: drc: finish MAC, gen drc entry/exit (for statically alloced regs) X-Git-Tag: v1.85~214 X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=picodrive.git;a=commitdiff_plain;h=8796b7ee88b83c54bd09c0087e023dfac5df3e08 32x: drc: finish MAC, gen drc entry/exit (for statically alloced regs) git-svn-id: file:///home/notaz/opt/svn/PicoDrive@837 be3aeb3a-fb24-0410-a615-afba39da0efa --- diff --git a/cpu/drc/emit_arm.c b/cpu/drc/emit_arm.c index 135274a..f651dd5 100644 --- a/cpu/drc/emit_arm.c +++ b/cpu/drc/emit_arm.c @@ -24,6 +24,7 @@ #define A_R10M (1 << 10) #define A_R11M (1 << 11) #define A_R14M (1 << 14) +#define A_R15M (1 << 15) #define A_COND_AL 0xe #define A_COND_EQ 0x0 @@ -81,6 +82,7 @@ #define A_OP_TST 0x8 #define A_OP_TEQ 0x9 #define A_OP_CMP 0xa +#define A_OP_CMN 0xa #define A_OP_ORR 0xc #define A_OP_MOV 0xd #define A_OP_BIC 0xe @@ -180,8 +182,8 @@ #define EOP_XXM(cond,p,u,s,w,l,rn,list) \ EMIT(((cond)<<28) | (1<<27) | ((p)<<24) | ((u)<<23) | ((s)<<22) | ((w)<<21) | ((l)<<20) | ((rn)<<16) | (list)) -#define EOP_STMFD_ST(list) EOP_XXM(A_COND_AL,1,0,0,1,0,13,list) -#define EOP_LDMFD_ST(list) EOP_XXM(A_COND_AL,0,1,0,1,1,13,list) +#define EOP_STMFD(rb,list) EOP_XXM(A_COND_AL,1,0,0,1,0,rb,list) +#define EOP_LDMFD(rb,list) EOP_XXM(A_COND_AL,0,1,0,1,1,rb,list) /* branches */ #define EOP_C_BX(cond,rm) \ @@ -232,9 +234,13 @@ static void emith_op_imm2(int cond, int s, int op, int rd, int rn, unsigned int int ror2; u32 v; - if (op == A_OP_MOV) + if (op == A_OP_MOV) { rn = 0; - else if (imm == 0) + if (~imm < 0x100) { + imm = ~imm; + op = A_OP_MVN; + } + } else if (imm == 0) return; for (v = imm, ror2 = 0; v != 0 || op == A_OP_MOV; v >>= 8, ror2 -= 8/2) { @@ -294,6 +300,22 @@ static int emith_xbranch(int cond, void *target, int is_call) return (u32 *)tcache_ptr - start_ptr; } +#define JMP_POS(ptr) \ + ptr = tcache_ptr; \ + tcache_ptr += sizeof(u32) + +#define JMP_EMIT(cond, ptr) { \ + int val = (u32 *)tcache_ptr - (u32 *)(ptr) - 2; \ + EOP_C_B_PTR(ptr, cond, 0, val & 0xffffff); \ +} + +#define EMITH_JMP_START(cond) { \ + void *cond_ptr; \ + JMP_POS(cond_ptr) + +#define EMITH_JMP_END(cond) \ + JMP_EMIT(cond, cond_ptr); \ +} // fake "simple" or "short" jump - using cond insns instead #define EMITH_SJMP_START(cond) \ @@ -365,6 +387,9 @@ static int emith_xbranch(int cond, void *target, int is_call) #define emith_sbcf_r_r(d, s) \ EOP_SBC_REG(A_COND_AL,1,d,d,s,A_AM1_LSL,0) +#define emith_eorf_r_r(d, s) \ + EOP_EOR_REG(A_COND_AL,1,d,d,s,A_AM1_LSL,0) + #define emith_move_r_imm(r, imm) \ emith_op_imm(A_COND_AL, 0, A_OP_MOV, r, imm) @@ -390,12 +415,21 @@ static int emith_xbranch(int cond, void *target, int is_call) #define emith_tst_r_imm(r, imm) \ emith_top_imm(A_COND_AL, A_OP_TST, r, imm) -#define emith_cmp_r_imm(r, imm) \ - emith_top_imm(A_COND_AL, A_OP_CMP, r, imm) +#define emith_cmp_r_imm(r, imm) { \ + u32 op = A_OP_CMP, imm_ = imm; \ + if (~imm_ < 0x100) { \ + imm_ = ~imm_; \ + op = A_OP_CMN; \ + } \ + emith_top_imm(A_COND_AL, op, r, imm); \ +} #define emith_subf_r_imm(r, imm) \ emith_op_imm(A_COND_AL, 1, A_OP_SUB, r, imm) +#define emith_move_r_imm_c(cond, r, imm) \ + emith_op_imm(cond, 0, A_OP_MOV, r, imm) + #define emith_add_r_imm_c(cond, r, imm) \ emith_op_imm(cond, 0, A_OP_ADD, r, imm) @@ -430,6 +464,9 @@ static int emith_xbranch(int cond, void *target, int is_call) #define emith_lsr(d, s, cnt) \ EOP_MOV_REG(A_COND_AL,0,d,s,A_AM1_LSR,cnt) +#define emith_asr(d, s, cnt) \ + EOP_MOV_REG(A_COND_AL,0,d,s,A_AM1_ASR,cnt) + #define emith_ror(d, s, cnt) \ EOP_MOV_REG(A_COND_AL,0,d,s,A_AM1_ROR,cnt) @@ -484,9 +521,25 @@ static int emith_xbranch(int cond, void *target, int is_call) #define emith_ctx_read(r, offs) \ EOP_LDR_IMM(r, CONTEXT_REG, offs) +#define emith_ctx_read_multiple(r, offs, count, tmpr) do { \ + int v_, r_ = r, c_ = count; \ + for (v_ = 0; c_; c_--, r_++) \ + v_ |= 1 << r_; \ + EOP_ADD_IMM(tmpr,CONTEXT_REG,30/2,(offs)>>2); \ + EOP_LDMFD(tmpr,v_); \ +} while(0) + #define emith_ctx_write(r, offs) \ EOP_STR_IMM(r, CONTEXT_REG, offs) +#define emith_ctx_write_multiple(r, offs, count, tmpr) do { \ + int v_, r_ = r, c_ = count; \ + for (v_ = 0; c_; c_--, r_++) \ + v_ |= 1 << r_; \ + EOP_ADD_IMM(tmpr,CONTEXT_REG,30/2,(offs)>>2); \ + EOP_STMFD(tmpr,v_); \ +} while(0) + #define emith_clear_msb_c(cond, d, s, count) { \ u32 t; \ if ((count) <= 8) { \ @@ -513,15 +566,6 @@ static int emith_xbranch(int cond, void *target, int is_call) EOP_MOV_REG_ASR(d,d,32 - (bits)); \ } -#define JMP_POS(ptr) \ - ptr = tcache_ptr; \ - tcache_ptr += sizeof(u32) - -#define JMP_EMIT(cond, ptr) { \ - int val = (u32 *)tcache_ptr - (u32 *)(ptr) - 2; \ - EOP_C_B_PTR(ptr, cond, 0, val & 0xffffff); \ -} - // _r_r // put bit0 of r0 to carry #define emith_set_carry(r0) \ @@ -557,7 +601,16 @@ static int emith_xbranch(int cond, void *target, int is_call) #define emith_jump(target) \ emith_jump_cond(A_COND_AL, target) +#define emith_jump_reg(r) \ + EOP_BX(r) + /* SH2 drc specific */ +#define emith_sh2_drc_entry() \ + EOP_STMFD(13,A_R7M|A_R14M) + +#define emith_sh2_drc_exit() \ + EOP_LDMFD(13,A_R7M|A_R15M) + #define emith_sh2_test_t() { \ int r = rcache_get_reg(SHR_SR, RC_GR_READ); \ EOP_TST_IMM(r, 0, 1); \ diff --git a/cpu/drc/emit_x86.c b/cpu/drc/emit_x86.c index 6ef8ede..7f314f0 100644 --- a/cpu/drc/emit_x86.c +++ b/cpu/drc/emit_x86.c @@ -202,6 +202,11 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI }; emith_arith_r_imm(4, r, ~(imm)) // fake conditionals (using SJMP instead) +#define emith_move_r_imm_c(cond, r, imm) { \ + (void)(cond); \ + emith_move_r_imm(r, imm); \ +} + #define emith_add_r_imm_c(cond, r, imm) { \ (void)(cond); \ emith_add_r_imm(r, imm); \ @@ -365,6 +370,7 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI }; #define emith_subf_r_r emith_sub_r_r #define emith_adcf_r_r emith_adc_r_r #define emith_sbcf_r_r emith_sbc_r_r +#define emith_eorf_r_r emith_eor_r_r #define emith_negcf_r_r emith_negc_r_r #define emith_lslf emith_lsl @@ -376,15 +382,27 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI }; #define emith_rorcf emith_rorc // XXX: offs is 8bit only -#define emith_ctx_read(r, offs) { \ +#define emith_ctx_read(r, offs) do { \ EMIT_OP_MODRM(0x8b, 1, r, xBP); \ EMIT(offs, u8); /* mov tmp, [ebp+#offs] */ \ -} +} while (0) -#define emith_ctx_write(r, offs) { \ +#define emith_ctx_read_multiple(r, offs, cnt, tmpr) do { \ + int r_ = r, offs_ = offs, cnt_ = cnt; \ + for (; cnt > 0; r_++, offs_ += 4, cnt_--) \ + emith_ctx_read(r_, offs_); \ +} while (0) + +#define emith_ctx_write(r, offs) do { \ EMIT_OP_MODRM(0x89, 1, r, xBP); \ EMIT(offs, u8); /* mov [ebp+#offs], tmp */ \ -} +} while (0) + +#define emith_ctx_write_multiple(r, offs, cnt, tmpr) do { \ + int r_ = r, offs_ = offs, cnt_ = cnt; \ + for (; cnt > 0; r_++, offs_ += 4, cnt_--) \ + emith_ctx_write(r_, offs_); \ +} while (0) #define emith_jump(ptr) { \ u32 disp = (u32)ptr - ((u32)tcache_ptr + 5); \ @@ -401,15 +419,21 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI }; #define emith_call_cond(cond, ptr) \ emith_call(ptr) -// "simple" or "short" jump -#define EMITH_SJMP_START(cond) { \ +#define emith_jump_reg(r) \ + EMIT_OP_MODRM(0xff, 3, 4, r) + +#define EMITH_JMP_START(cond) { \ u8 *cond_ptr; \ JMP8_POS(cond_ptr) -#define EMITH_SJMP_END(cond) \ +#define EMITH_JMP_END(cond) \ JMP8_EMIT(cond, cond_ptr); \ } +// "simple" jump (no more then a few insns) +#define EMITH_SJMP_START EMITH_JMP_START +#define EMITH_SJMP_END EMITH_JMP_END + #define host_arg2reg(rd, arg) \ switch (arg) { \ case 0: rd = xAX; break; \ @@ -430,6 +454,17 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI }; } /* SH2 drc specific */ +#define emith_sh2_drc_entry() { \ + emith_push(xBX); \ + emith_push(xBP); \ +} + +#define emith_sh2_drc_exit() { \ + emith_pop(xBP); \ + emith_pop(xBX); \ + EMIT_OP(0xc3); /* ret */\ +} + #define emith_sh2_test_t() { \ int t = rcache_get_reg(SHR_SR, RC_GR_READ); \ EMIT_OP_MODRM(0xf6, 3, 0, t); \ diff --git a/cpu/sh2/compiler.c b/cpu/sh2/compiler.c index f260f92..19fb1a9 100644 --- a/cpu/sh2/compiler.c +++ b/cpu/sh2/compiler.c @@ -11,6 +11,7 @@ #include "compiler.h" #include "../drc/cmn.h" +// debug stuff { #ifndef DRC_DEBUG #define DRC_DEBUG 0 #endif @@ -40,6 +41,7 @@ static char sh2dasm_buff[64]; #else #define do_host_disasm(x) #endif +// } debug #define BLOCK_CYCLE_LIMIT 100 #define MAX_BLOCK_SIZE (BLOCK_CYCLE_LIMIT * 6 * 6) @@ -47,6 +49,7 @@ static char sh2dasm_buff[64]; // we have 3 translation cache buffers, split from one drc/cmn buffer. // BIOS shares tcache with data array because it's only used for init // and can be discarded early +// XXX: need to tune sizes static const int tcache_sizes[3] = { DRC_TCACHE_SIZE * 6 / 8, // ROM, DRAM DRC_TCACHE_SIZE / 8, // BIOS, data array in master sh2 @@ -152,8 +155,8 @@ static int block_counts[3]; #define HASH_MASK (MAX_HASH_ENTRIES - 1) static void **hash_table; -extern void sh2_drc_entry(SH2 *sh2, void *block); -extern void sh2_drc_exit(void); +static void REGPARM(2) (*sh2_drc_entry)(const void *block, SH2 *sh2); +static void (*sh2_drc_exit)(void); // tmp extern void REGPARM(2) sh2_do_op(SH2 *sh2, int opcode); @@ -503,12 +506,13 @@ static int emit_indirect_indexed_read(int rx, int ry, int size) return emit_memhandler_read(size); } -// Rwr -> @(Rx,Ry) -static void emit_indirect_indexed_write(int rx, int ry, int wr, int size) +// tmp_wr -> @(Rx,Ry) +static void emit_indirect_indexed_write(int tmp_wr, int rx, int ry, int size) { int a0, t; rcache_clean(); - rcache_get_reg_arg(1, wr); + t = rcache_get_tmp_arg(1); + emith_move_r_r(t, tmp_wr); a0 = rcache_get_reg_arg(0, rx); t = rcache_get_reg(ry, RC_GR_READ); emith_add_r_r(a0, t); @@ -537,35 +541,57 @@ static void emit_indirect_read_double(u32 *rnr, u32 *rmr, int rn, int rm, int si emith_add_r_imm(tmp, 1 << size); } -// fixup for saturated MAC, to be called from generated code -// FIXME: statically alloced regs need to be fixed -static void sh2_macl_sat_fixup(void) +static void emit_do_static_regs(int is_write, int tmpr) { - if ((signed int)sh2->mach < 0 && sh2->mach < 0xffff8000) - { - sh2->mach = 0x00008000; - sh2->macl = 0x00000000; - } - else if ((signed int)sh2->mach > 0 && sh2->mach > 0x00007fff) - { - sh2->mach = 0x00007fff; - sh2->macl = 0xffffffff; + int i, r, count; + + for (i = 0; i < ARRAY_SIZE(reg_map_g2h); i++) { + r = reg_map_g2h[i]; + if (r == -1) + continue; + + for (count = 1; i < ARRAY_SIZE(reg_map_g2h) - 1; i++, r++) { + if (reg_map_g2h[i + 1] != r + 1) + break; + count++; + } + + if (count > 1) { + // i, r point to last item + if (is_write) + emith_ctx_write_multiple(r - count + 1, (i - count + 1) * 4, count, tmpr); + else + emith_ctx_read_multiple(r - count + 1, (i - count + 1) * 4, count, tmpr); + } else { + if (is_write) + emith_ctx_write(r, i * 4); + else + emith_ctx_read(r, i * 4); + } } } -static void sh2_macw_sat_fixup(void) +static void sh2_generate_utils(void) { - signed int t = sh2->mach; - if (t < -1 || (t == -1 && !(sh2->macl & 0x80000000))) - { - sh2->mach = 0xffffffff; // ? - sh2->macl = 0x80000000; - } - else if (t > 0 || (t == 0 && (sh2->macl & 0x80000000))) - { - sh2->mach = 0x7fffffff; - sh2->macl = 0xffffffff; - } + int ctx, blk, tmp; + + host_arg2reg(blk, 0); + host_arg2reg(ctx, 1); + host_arg2reg(tmp, 2); + + // sh2_drc_entry(void *block, SH2 *sh2) + sh2_drc_entry = (void *)tcache_ptr; + emith_sh2_drc_entry(); + emith_move_r_r(CONTEXT_REG, ctx); // move ctx, arg1 + emit_do_static_regs(0, tmp); + emith_jump_reg(blk); // jump arg0 + + // sh2_drc_exit(void) + sh2_drc_exit = (void *)tcache_ptr; + emit_do_static_regs(1, tmp); + emith_sh2_drc_exit(); + + rcache_invalidate(); } #define DELAYED_OP \ @@ -697,7 +723,8 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) case 0x04: // MOV.B Rm,@(R0,Rn) 0000nnnnmmmm0100 case 0x05: // MOV.W Rm,@(R0,Rn) 0000nnnnmmmm0101 case 0x06: // MOV.L Rm,@(R0,Rn) 0000nnnnmmmm0110 - emit_indirect_indexed_write(SHR_R0, GET_Rn(), GET_Rm(), op & 3); + tmp = rcache_get_reg(GET_Rm(), RC_GR_READ); + emit_indirect_indexed_write(tmp, SHR_R0, GET_Rn(), op & 3); goto end_op; case 0x07: // MUL.L Rm,Rn 0000nnnnmmmm0111 @@ -712,12 +739,12 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) switch (GET_Fx()) { case 0: // CLRT 0000000000001000 - tmp = rcache_get_reg(SHR_SR, RC_GR_RMW); - emith_bic_r_imm(tmp, T); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_bic_r_imm(sr, T); break; case 1: // SETT 0000000000011000 - tmp = rcache_get_reg(SHR_SR, RC_GR_RMW); - emith_or_r_imm(tmp, T); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_or_r_imm(sr, T); break; case 2: // CLRMAC 0000000000101000 tmp = rcache_get_reg(SHR_MACL, RC_GR_WRITE); @@ -737,13 +764,13 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) break; case 1: // DIV0U 0000000000011001 CHECK_UNHANDLED_BITS(0xf00); - tmp = rcache_get_reg(SHR_SR, RC_GR_RMW); - emith_bic_r_imm(tmp, M|Q|T); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_bic_r_imm(sr, M|Q|T); break; case 2: // MOVT Rn 0000nnnn00101001 - tmp = rcache_get_reg(SHR_SR, RC_GR_READ); + sr = rcache_get_reg(SHR_SR, RC_GR_READ); tmp2 = rcache_get_reg(GET_Rn(), RC_GR_WRITE); - emith_clear_msb(tmp2, tmp, 31); + emith_clear_msb(tmp2, sr, 31); break; default: goto default_; @@ -822,24 +849,34 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) goto end_op; case 0x0f: // MAC.L @Rm+,@Rn+ 0000nnnnmmmm1111 emit_indirect_read_double(&tmp, &tmp2, GET_Rn(), GET_Rm(), 2); - tmp3 = rcache_get_reg(SHR_SR, RC_GR_READ); + sr = rcache_get_reg(SHR_SR, RC_GR_READ); tmp4 = rcache_get_reg(SHR_MACH, RC_GR_RMW); /* MS 16 MAC bits unused if saturated */ - emith_tst_r_imm(tmp3, S); + emith_tst_r_imm(sr, S); EMITH_SJMP_START(DCOND_EQ); emith_clear_msb_c(DCOND_NE, tmp4, tmp4, 16); EMITH_SJMP_END(DCOND_EQ); tmp3 = rcache_get_reg(SHR_MACL, RC_GR_RMW); // might evict SR emith_mula_s64(tmp3, tmp4, tmp, tmp2); - rcache_free_tmp(tmp); rcache_free_tmp(tmp2); - rcache_clean(); - tmp3 = rcache_get_reg(SHR_SR, RC_GR_READ); - emith_tst_r_imm(tmp3, S); - EMITH_SJMP_START(DCOND_EQ); - emith_call_cond(DCOND_NE, sh2_macl_sat_fixup); - EMITH_SJMP_END(DCOND_EQ); - rcache_invalidate(); + sr = rcache_get_reg(SHR_SR, RC_GR_READ); // reget just in case + emith_tst_r_imm(sr, S); + + EMITH_JMP_START(DCOND_EQ); + emith_asr(tmp, tmp4, 15); + emith_cmp_r_imm(tmp, -1); // negative overflow (0x80000000..0xffff7fff) + EMITH_SJMP_START(DCOND_GE); + emith_move_r_imm_c(DCOND_LT, tmp4, 0x8000); + emith_move_r_imm_c(DCOND_LT, tmp3, 0x0000); + EMITH_SJMP_END(DCOND_GE); + emith_cmp_r_imm(tmp, 0); // positive overflow (0x00008000..0x7fffffff) + EMITH_SJMP_START(DCOND_LE); + emith_move_r_imm_c(DCOND_GT, tmp4, 0x00007fff); + emith_move_r_imm_c(DCOND_GT, tmp3, 0xffffffff); + EMITH_SJMP_END(DCOND_LE); + EMITH_JMP_END(DCOND_EQ); + + rcache_free_tmp(tmp); cycles += 3; goto end_op; } @@ -877,30 +914,30 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) emit_memhandler_write(op & 3); goto end_op; case 0x07: // DIV0S Rm,Rn 0010nnnnmmmm0111 - tmp = rcache_get_reg(SHR_SR, RC_GR_RMW); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); tmp3 = rcache_get_reg(GET_Rm(), RC_GR_READ); - emith_bic_r_imm(tmp, M|Q|T); + emith_bic_r_imm(sr, M|Q|T); emith_tst_r_imm(tmp2, (1<<31)); EMITH_SJMP_START(DCOND_EQ); - emith_or_r_imm_c(DCOND_NE, tmp, Q); + emith_or_r_imm_c(DCOND_NE, sr, Q); EMITH_SJMP_END(DCOND_EQ); emith_tst_r_imm(tmp3, (1<<31)); EMITH_SJMP_START(DCOND_EQ); - emith_or_r_imm_c(DCOND_NE, tmp, M); + emith_or_r_imm_c(DCOND_NE, sr, M); EMITH_SJMP_END(DCOND_EQ); emith_teq_r_r(tmp2, tmp3); EMITH_SJMP_START(DCOND_PL); - emith_or_r_imm_c(DCOND_MI, tmp, T); + emith_or_r_imm_c(DCOND_MI, sr, T); EMITH_SJMP_END(DCOND_PL); goto end_op; case 0x08: // TST Rm,Rn 0010nnnnmmmm1000 - tmp = rcache_get_reg(SHR_SR, RC_GR_RMW); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); tmp3 = rcache_get_reg(GET_Rm(), RC_GR_READ); - emith_bic_r_imm(tmp, T); + emith_bic_r_imm(sr, T); emith_tst_r_r(tmp2, tmp3); - emit_or_t_if_eq(tmp); + emit_or_t_if_eq(sr); goto end_op; case 0x09: // AND Rm,Rn 0010nnnnmmmm1001 tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); @@ -922,8 +959,8 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); tmp3 = rcache_get_reg(GET_Rm(), RC_GR_READ); emith_eor_r_r_r(tmp, tmp2, tmp3); - tmp2 = rcache_get_reg(SHR_SR, RC_GR_RMW); - emith_bic_r_imm(tmp2, T); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_bic_r_imm(sr, T); emith_tst_r_imm(tmp, 0x000000ff); emit_or_t_if_eq(tmp); emith_tst_r_imm(tmp, 0x0000ff00); @@ -971,34 +1008,34 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) case 0x03: // CMP/GE Rm,Rn 0011nnnnmmmm0011 case 0x06: // CMP/HI Rm,Rn 0011nnnnmmmm0110 case 0x07: // CMP/GT Rm,Rn 0011nnnnmmmm0111 - tmp = rcache_get_reg(SHR_SR, RC_GR_RMW); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); tmp3 = rcache_get_reg(GET_Rm(), RC_GR_READ); - emith_bic_r_imm(tmp, T); + emith_bic_r_imm(sr, T); emith_cmp_r_r(tmp2, tmp3); switch (op & 0x07) { case 0x00: // CMP/EQ - emit_or_t_if_eq(tmp); + emit_or_t_if_eq(sr); break; case 0x02: // CMP/HS EMITH_SJMP_START(DCOND_LO); - emith_or_r_imm_c(DCOND_HS, tmp, T); + emith_or_r_imm_c(DCOND_HS, sr, T); EMITH_SJMP_END(DCOND_LO); break; case 0x03: // CMP/GE EMITH_SJMP_START(DCOND_LT); - emith_or_r_imm_c(DCOND_GE, tmp, T); + emith_or_r_imm_c(DCOND_GE, sr, T); EMITH_SJMP_END(DCOND_LT); break; case 0x06: // CMP/HI EMITH_SJMP_START(DCOND_LS); - emith_or_r_imm_c(DCOND_HI, tmp, T); + emith_or_r_imm_c(DCOND_HI, sr, T); EMITH_SJMP_END(DCOND_LS); break; case 0x07: // CMP/GT EMITH_SJMP_START(DCOND_LE); - emith_or_r_imm_c(DCOND_GT, tmp, T); + emith_or_r_imm_c(DCOND_GT, sr, T); EMITH_SJMP_END(DCOND_LE); break; } @@ -1055,29 +1092,29 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) case 0x0e: // ADDC Rm,Rn 0011nnnnmmmm1110 tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); - tmp3 = rcache_get_reg(SHR_SR, RC_GR_RMW); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); if (op & 4) { // adc - emith_set_carry(tmp3); + emith_set_carry(sr); emith_adcf_r_r(tmp, tmp2); - emith_carry_to_t(tmp3, 0); + emith_carry_to_t(sr, 0); } else { - emith_set_carry_sub(tmp3); + emith_set_carry_sub(sr); emith_sbcf_r_r(tmp, tmp2); - emith_carry_to_t(tmp3, 1); + emith_carry_to_t(sr, 1); } goto end_op; case 0x0b: // SUBV Rm,Rn 0011nnnnmmmm1011 case 0x0f: // ADDV Rm,Rn 0011nnnnmmmm1111 tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); - tmp3 = rcache_get_reg(SHR_SR, RC_GR_RMW); - emith_bic_r_imm(tmp3, T); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_bic_r_imm(sr, T); if (op & 4) { emith_addf_r_r(tmp, tmp2); } else emith_subf_r_r(tmp, tmp2); EMITH_SJMP_START(DCOND_VC); - emith_or_r_imm_c(DCOND_VS, tmp3, T); + emith_or_r_imm_c(DCOND_VS, sr, T); EMITH_SJMP_END(DCOND_VC); goto end_op; case 0x0d: // DMULS.L Rm,Rn 0011nnnnmmmm1101 @@ -1099,10 +1136,10 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) { case 0: // SHLL Rn 0100nnnn00000000 case 2: // SHAL Rn 0100nnnn00100000 - tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); - tmp2 = rcache_get_reg(SHR_SR, RC_GR_RMW); + tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); emith_lslf(tmp, tmp, 1); - emith_carry_to_t(tmp2, 0); + emith_carry_to_t(sr, 0); goto end_op; case 1: // DT Rn 0100nnnn00010000 if (p32x_sh2_read16(pc, sh2) == 0x8bfd) { // BF #-2 @@ -1110,10 +1147,10 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) goto end_op; } tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); - tmp2 = rcache_get_reg(SHR_SR, RC_GR_RMW); - emith_bic_r_imm(tmp2, T); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_bic_r_imm(sr, T); emith_subf_r_imm(tmp, 1); - emit_or_t_if_eq(tmp2); + emit_or_t_if_eq(sr); goto end_op; } goto default_; @@ -1122,21 +1159,21 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) { case 0: // SHLR Rn 0100nnnn00000001 case 2: // SHAR Rn 0100nnnn00100001 - tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); - tmp2 = rcache_get_reg(SHR_SR, RC_GR_RMW); + tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); if (op & 0x20) { emith_asrf(tmp, tmp, 1); } else emith_lsrf(tmp, tmp, 1); - emith_carry_to_t(tmp2, 0); + emith_carry_to_t(sr, 0); goto end_op; case 1: // CMP/PZ Rn 0100nnnn00010001 - tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); - tmp2 = rcache_get_reg(SHR_SR, RC_GR_RMW); - emith_bic_r_imm(tmp2, T); + tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_bic_r_imm(sr, T); emith_cmp_r_imm(tmp, 0); EMITH_SJMP_START(DCOND_LT); - emith_or_r_imm_c(DCOND_GE, tmp2, T); + emith_or_r_imm_c(DCOND_GE, sr, T); EMITH_SJMP_END(DCOND_LT); goto end_op; } @@ -1181,32 +1218,32 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) { case 0x04: // ROTL Rn 0100nnnn00000100 case 0x05: // ROTR Rn 0100nnnn00000101 - tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); - tmp2 = rcache_get_reg(SHR_SR, RC_GR_RMW); + tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); if (op & 1) { emith_rorf(tmp, tmp, 1); } else emith_rolf(tmp, tmp, 1); - emith_carry_to_t(tmp2, 0); + emith_carry_to_t(sr, 0); goto end_op; case 0x24: // ROTCL Rn 0100nnnn00100100 case 0x25: // ROTCR Rn 0100nnnn00100101 - tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); - tmp2 = rcache_get_reg(SHR_SR, RC_GR_RMW); - emith_set_carry(tmp2); + tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_set_carry(sr); if (op & 1) { emith_rorcf(tmp); } else emith_rolcf(tmp); - emith_carry_to_t(tmp2, 0); + emith_carry_to_t(sr, 0); goto end_op; case 0x15: // CMP/PL Rn 0100nnnn00010101 - tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); - tmp2 = rcache_get_reg(SHR_SR, RC_GR_RMW); - emith_bic_r_imm(tmp2, T); + tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_bic_r_imm(sr, T); emith_cmp_r_imm(tmp, 0); EMITH_SJMP_START(DCOND_LE); - emith_or_r_imm_c(DCOND_GT, tmp2, T); + emith_or_r_imm_c(DCOND_GT, sr, T); EMITH_SJMP_END(DCOND_LE); goto end_op; } @@ -1310,11 +1347,11 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) // XXX: is TAS working on 32X? rcache_clean(); rcache_get_reg_arg(0, GET_Rn()); - tmp = emit_memhandler_read(0); - tmp2 = rcache_get_reg(SHR_SR, RC_GR_RMW); - emith_bic_r_imm(tmp2, T); + tmp = emit_memhandler_read(0); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_bic_r_imm(sr, T); emith_cmp_r_imm(tmp, 0); - emit_or_t_if_eq(tmp2); + emit_or_t_if_eq(sr); rcache_clean(); emith_or_r_imm(tmp, 0x80); tmp2 = rcache_get_tmp_arg(1); // assuming it differs to tmp @@ -1360,16 +1397,24 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) tmp3 = rcache_get_reg(SHR_MACL, RC_GR_RMW); tmp4 = rcache_get_reg(SHR_MACH, RC_GR_RMW); emith_mula_s64(tmp3, tmp4, tmp, tmp2); - rcache_free_tmp(tmp); rcache_free_tmp(tmp2); - rcache_clean(); // XXX: MACH should be untouched when S is set? - tmp3 = rcache_get_reg(SHR_SR, RC_GR_READ); - emith_tst_r_imm(tmp3, S); - EMITH_SJMP_START(DCOND_EQ); - emith_call_cond(DCOND_NE, sh2_macw_sat_fixup); - EMITH_SJMP_END(DCOND_EQ); - rcache_invalidate(); + sr = rcache_get_reg(SHR_SR, RC_GR_READ); + emith_tst_r_imm(sr, S); + EMITH_JMP_START(DCOND_EQ); + + emith_asr(tmp, tmp3, 31); + emith_eorf_r_r(tmp, tmp4); // tmp = ((signed)macl >> 31) ^ mach + EMITH_JMP_START(DCOND_EQ); + emith_move_r_imm(tmp3, 0x80000000); + emith_tst_r_r(tmp4, tmp4); + EMITH_SJMP_START(DCOND_MI); + emith_sub_r_imm_c(DCOND_PL, tmp3, 1); // positive + EMITH_SJMP_END(DCOND_MI); + EMITH_JMP_END(DCOND_EQ); + + EMITH_JMP_END(DCOND_EQ); + rcache_free_tmp(tmp); cycles += 2; goto end_op; } @@ -1441,10 +1486,10 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) emith_rol(tmp2, tmp, 16); break; case 0x0a: // NEGC Rm,Rn 0110nnnnmmmm1010 - tmp3 = rcache_get_reg(SHR_SR, RC_GR_RMW); - emith_set_carry_sub(tmp3); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_set_carry_sub(sr); emith_negcf_r_r(tmp2, tmp); - emith_carry_to_t(tmp3, 1); + emith_carry_to_t(sr, 1); break; case 0x0b: // NEG Rm,Rn 0110nnnnmmmm1011 emith_neg_r_r(tmp2, tmp); @@ -1504,11 +1549,11 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) // XXX: could use cmn tmp = rcache_get_tmp(); tmp2 = rcache_get_reg(0, RC_GR_READ); - tmp3 = rcache_get_reg(SHR_SR, RC_GR_RMW); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); emith_move_r_imm_s8(tmp, op & 0xff); - emith_bic_r_imm(tmp3, T); + emith_bic_r_imm(sr, T); emith_cmp_r_r(tmp2, tmp); - emit_or_t_if_eq(tmp3); + emit_or_t_if_eq(sr); rcache_free_tmp(tmp); goto end_op; case 0x0d00: // BT/S label 10001101dddddddd @@ -1626,11 +1671,11 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) emit_move_r_imm32(SHR_R0, (pc + (op & 0xff) * 4 + 2) & ~3); goto end_op; case 0x0800: // TST #imm,R0 11001000iiiiiiii - tmp = rcache_get_reg(SHR_R0, RC_GR_READ); - tmp2 = rcache_get_reg(SHR_SR, RC_GR_RMW); - emith_bic_r_imm(tmp2, T); + tmp = rcache_get_reg(SHR_R0, RC_GR_READ); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_bic_r_imm(sr, T); emith_tst_r_imm(tmp, op & 0xff); - emit_or_t_if_eq(tmp2); + emit_or_t_if_eq(sr); goto end_op; case 0x0900: // AND #imm,R0 11001001iiiiiiii tmp = rcache_get_reg(SHR_R0, RC_GR_RMW); @@ -1645,30 +1690,33 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) emith_or_r_imm(tmp, op & 0xff); goto end_op; case 0x0c00: // TST.B #imm,@(R0,GBR) 11001100iiiiiiii - tmp = emit_indirect_indexed_read(SHR_R0, SHR_GBR, 0); - tmp2 = rcache_get_reg(SHR_SR, RC_GR_RMW); - emith_bic_r_imm(tmp2, T); + tmp = emit_indirect_indexed_read(SHR_R0, SHR_GBR, 0); + sr = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_bic_r_imm(sr, T); emith_tst_r_imm(tmp, op & 0xff); - emit_or_t_if_eq(tmp2); + emit_or_t_if_eq(sr); rcache_free_tmp(tmp); cycles += 2; goto end_op; case 0x0d00: // AND.B #imm,@(R0,GBR) 11001101iiiiiiii tmp = emit_indirect_indexed_read(SHR_R0, SHR_GBR, 0); emith_and_r_imm(tmp, op & 0xff); - emit_indirect_indexed_write(SHR_R0, SHR_GBR, tmp, 0); - cycles += 2; - goto end_op; + goto end_rmw_op; case 0x0e00: // XOR.B #imm,@(R0,GBR) 11001110iiiiiiii tmp = emit_indirect_indexed_read(SHR_R0, SHR_GBR, 0); emith_eor_r_imm(tmp, op & 0xff); - emit_indirect_indexed_write(SHR_R0, SHR_GBR, tmp, 0); - cycles += 2; - goto end_op; + goto end_rmw_op; case 0x0f00: // OR.B #imm,@(R0,GBR) 11001111iiiiiiii tmp = emit_indirect_indexed_read(SHR_R0, SHR_GBR, 0); emith_or_r_imm(tmp, op & 0xff); - emit_indirect_indexed_write(SHR_R0, SHR_GBR, tmp, 0); + end_rmw_op: + tmp2 = rcache_get_tmp_arg(1); + emith_move_r_r(tmp2, tmp); + rcache_free_tmp(tmp); + tmp3 = rcache_get_reg_arg(0, SHR_GBR); + tmp4 = rcache_get_reg(SHR_R0, RC_GR_READ); + emith_add_r_r(tmp3, tmp4); + emit_memhandler_write(0); cycles += 2; goto end_op; } @@ -1837,7 +1885,7 @@ void __attribute__((noinline)) sh2_drc_dispatcher(SH2 *sh2) if (bd != NULL) bd->refcount++; #endif - sh2_drc_entry(sh2, block); + sh2_drc_entry(block, sh2); } } @@ -1969,8 +2017,11 @@ int sh2_drc_init(SH2 *sh2) if (block_tables[0] == NULL) return -1; + tcache_ptr = tcache; + sh2_generate_utils(); + memset(block_counts, 0, sizeof(block_counts)); - tcache_bases[0] = tcache_ptrs[0] = tcache; + tcache_bases[0] = tcache_ptrs[0] = tcache_ptr; for (i = 1; i < ARRAY_SIZE(block_tables); i++) { block_tables[i] = block_tables[i - 1] + block_max_counts[i - 1]; @@ -1983,6 +2034,9 @@ int sh2_drc_init(SH2 *sh2) #if (DRC_DEBUG & 2) for (i = 0; i < ARRAY_SIZE(block_tables); i++) tcache_dsm_ptrs[i] = tcache_bases[i]; + // disasm the utils + tcache_dsm_ptrs[0] = tcache; + do_host_disasm(0); #endif #if (DRC_DEBUG & 1) hash_collisions = 0; diff --git a/cpu/sh2/stub_arm.s b/cpu/sh2/stub_arm.s deleted file mode 100644 index 4a42447..0000000 --- a/cpu/sh2/stub_arm.s +++ /dev/null @@ -1,16 +0,0 @@ -@ vim:filetype=armasm -.text - -.global sh2_drc_entry @ SH2 *sh2, void *block - -sh2_drc_entry: - stmfd sp!, {r7,lr} - mov r7, r0 - bx r1 - - -.global sh2_drc_exit - -sh2_drc_exit: - ldmfd sp!, {r7,pc} - diff --git a/cpu/sh2/stub_x86.asm b/cpu/sh2/stub_x86.asm deleted file mode 100644 index e53e947..0000000 --- a/cpu/sh2/stub_x86.asm +++ /dev/null @@ -1,18 +0,0 @@ -section .text - -global sh2_drc_entry ; SH2 *sh2, void *block - -sh2_drc_entry: - push ebx - push ebp - mov ebp, [esp+8+4] ; context - mov eax, [esp+8+8] - jmp eax - -global sh2_drc_exit - -sh2_drc_exit: - pop ebp - pop ebx - ret - diff --git a/platform/common/common.mak b/platform/common/common.mak index edc8aae..be33b5a 100644 --- a/platform/common/common.mak +++ b/platform/common/common.mak @@ -37,7 +37,6 @@ OBJS += cpu/drc/cmn.o ifeq "$(use_sh2drc)" "1" DEFINES += DRC_SH2 OBJS += cpu/sh2/compiler.o -OBJS += cpu/sh2/stub_$(ARCH).o ifdef drc_debug DEFINES += DRC_DEBUG=$(drc_debug) OBJS += cpu/sh2/mame/sh2dasm.o diff --git a/platform/linux/host_dasm.c b/platform/linux/host_dasm.c index 3cc9c7b..d2d6d0a 100644 --- a/platform/linux/host_dasm.c +++ b/platform/linux/host_dasm.c @@ -144,6 +144,7 @@ static int insn_printf(void *f, const char *format, ...) static void host_dasm_init(void) { + bfd_init(); slurp_symtab(g_argv[0]); init_disassemble_info(&di, NULL, insn_printf);