X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=cpu%2Fsh2%2Fcompiler.c;h=43ca7b7c36adbff8f198e7b21bcea19f2558919f;hb=80599a42dbc06f3e86a09dae9dc98dccbb84b48c;hp=5d68892a4630834c9798a32f13ed24796e4bfe67;hpb=c18edb34e6708b399c6bfee8dac7b21a62988643;p=picodrive.git diff --git a/cpu/sh2/compiler.c b/cpu/sh2/compiler.c index 5d68892..43ca7b7 100644 --- a/cpu/sh2/compiler.c +++ b/cpu/sh2/compiler.c @@ -74,6 +74,8 @@ typedef struct { u32 val; } temp_reg_t; +// note: reg_temp[] must have at least the amount of +// registers used by handlers in worst case (currently 3?) #ifdef ARM #include "../drc/emit_arm.c" @@ -116,6 +118,12 @@ static temp_reg_t reg_temp[] = { #endif +#define T 0x00000001 +#define S 0x00000002 +#define I 0x000000f0 +#define Q 0x00000100 +#define M 0x00000200 + typedef enum { SHR_R0 = 0, SHR_R15 = 15, SHR_PC, SHR_PPC, SHR_PR, SHR_SR, @@ -224,7 +232,7 @@ static temp_reg_t *rcache_evict(void) } if (oldest == -1) { - printf("no registers to ec=vict, aborting\n"); + printf("no registers to evict, aborting\n"); exit(1); } @@ -243,6 +251,7 @@ typedef enum { RC_GR_RMW, } rc_gr_mode; +// note: must not be called when doing conditional code static int rcache_get_reg(sh2_reg_e r, rc_gr_mode mode) { temp_reg_t *tr; @@ -305,6 +314,78 @@ do_alloc: return tr->reg; } +static int rcache_get_arg_id(int arg) +{ + int i, r = 0; + host_arg2reg(r, arg); + + for (i = 0; i < ARRAY_SIZE(reg_temp); i++) + if (reg_temp[i].reg == r) + break; + + if (i == ARRAY_SIZE(reg_temp)) + // let's just say it's untracked arg reg + return r; + + if (reg_temp[i].type == HR_CACHED_DIRTY) { + // writeback + emith_ctx_write(reg_temp[i].reg, reg_temp[i].val * 4); + } + else if (reg_temp[i].type == HR_TEMP) { + printf("arg %d reg %d already used, aborting\n", arg, r); + exit(1); + } + + return i; +} + +// get a reg to be used as function arg +// it's assumed that regs are cleaned before call +static int rcache_get_tmp_arg(int arg) +{ + int id = rcache_get_arg_id(arg); + reg_temp[id].type = HR_TEMP; + + return reg_temp[id].reg; +} + +// same but caches reg. RC_GR_READ only. +static int rcache_get_reg_arg(int arg, sh2_reg_e r) +{ + int i, srcr, dstr, dstid; + + dstid = rcache_get_arg_id(arg); + dstr = reg_temp[dstid].reg; + + // maybe already statically mapped? + srcr = reg_map_g2h[r]; + if (srcr != -1) + goto do_cache; + + // maybe already cached? + for (i = ARRAY_SIZE(reg_temp) - 1; i >= 0; i--) { + if ((reg_temp[i].type == HR_CACHED || reg_temp[i].type == HR_CACHED_DIRTY) && + reg_temp[i].val == r) + { + srcr = reg_temp[i].reg; + goto do_cache; + } + } + + // must read + srcr = dstr; + emith_ctx_read(srcr, r * 4); + +do_cache: + if (srcr != dstr) + emith_move_r_r(dstr, srcr); + + reg_temp[dstid].stamp = ++rcache_counter; + reg_temp[dstid].type = HR_CACHED; + reg_temp[dstid].val = r; + return dstr; +} + static void rcache_free_tmp(int hr) { int i; @@ -312,23 +393,39 @@ static void rcache_free_tmp(int hr) if (reg_temp[i].reg == hr) break; - if (i == ARRAY_SIZE(reg_temp) || reg_temp[i].type != HR_TEMP) + if (i == ARRAY_SIZE(reg_temp) || reg_temp[i].type != HR_TEMP) { printf("rcache_free_tmp fail: #%i hr %d, type %d\n", i, hr, reg_temp[i].type); + return; + } + + reg_temp[i].type = HR_FREE; } -static void rcache_flush(void) +static void rcache_clean(void) { int i; - for (i = 0; i < ARRAY_SIZE(reg_temp); i++) { + for (i = 0; i < ARRAY_SIZE(reg_temp); i++) if (reg_temp[i].type == HR_CACHED_DIRTY) { // writeback emith_ctx_write(reg_temp[i].reg, reg_temp[i].val * 4); + reg_temp[i].type = HR_CACHED; } +} + +static void rcache_invalidate(void) +{ + int i; + for (i = 0; i < ARRAY_SIZE(reg_temp); i++) reg_temp[i].type = HR_FREE; - } rcache_counter = 0; } +static void rcache_flush(void) +{ + rcache_clean(); + rcache_invalidate(); +} + // --------------------------------------------------------------- static void emit_move_r_imm32(sh2_reg_e dst, u32 imm) @@ -345,20 +442,147 @@ static void emit_move_r_r(sh2_reg_e dst, sh2_reg_e src) emith_move_r_r(hr_d, hr_s); } -/* -static int sh2_translate_op4(int op) +// arguments must be ready +// reg cache must be clean before call +static int emit_memhandler_read(int size) { - switch (op & 0x000f) - { - case 0x0b: - default: - emith_pass_arg(2, sh2, op); - emith_call(sh2_do_op); + int ctxr; + host_arg2reg(ctxr, 1); + emith_move_r_r(ctxr, CONTEXT_REG); + switch (size) { + case 0: // 8 + emith_call(p32x_sh2_read8); + break; + case 1: // 16 + emith_call(p32x_sh2_read16); + break; + case 2: // 32 + emith_call(p32x_sh2_read32); break; } + rcache_invalidate(); + // assuming arg0 and retval reg matches + return rcache_get_tmp_arg(0); +} - return 0; +static void emit_memhandler_write(int size) +{ + int ctxr; + host_arg2reg(ctxr, 2); + emith_move_r_r(ctxr, CONTEXT_REG); + switch (size) { + case 0: // 8 + emith_call(p32x_sh2_write8); + break; + case 1: // 16 + emith_call(p32x_sh2_write16); + break; + case 2: // 32 + emith_call(p32x_sh2_write32); + break; + } + rcache_invalidate(); } + +/* +MOV #imm,Rn 1110nnnniiiiiiii +MOV.W @(disp,PC),Rn 1001nnnndddddddd +MOV.L @(disp,PC),Rn 1101nnnndddddddd +MOV Rm,Rn 0110nnnnmmmm0011 +MOV.B @Rm,Rn 0110nnnnmmmm0000 +MOV.W @Rm,Rn 0110nnnnmmmm0001 +MOV.L @Rm,Rn 0110nnnnmmmm0010 +MOV.B @Rm+,Rn 0110nnnnmmmm0100 +MOV.W @Rm+,Rn 0110nnnnmmmm0101 +MOV.L @Rm+,Rn 0110nnnnmmmm0110 +MOV.B R0,@(disp,Rn) 10000000nnnndddd +MOV.W R0,@(disp,Rn) 10000001nnnndddd +MOV.B @(disp,Rm),R0 10000100mmmmdddd +MOV.W @(disp,Rm),R0 10000101mmmmdddd +MOV.L @(disp,Rm),Rn 0101nnnnmmmmdddd +MOV.B R0,@(disp,GBR) 11000000dddddddd +MOV.W R0,@(disp,GBR) 11000001dddddddd +MOV.L R0,@(disp,GBR) 11000010dddddddd +MOV.B @(disp,GBR),R0 11000100dddddddd +MOV.W @(disp,GBR),R0 11000101dddddddd +MOV.L @(disp,GBR),R0 11000110dddddddd +MOVA @(disp,PC),R0 11000111dddddddd +SWAP.B Rm,Rn 0110nnnnmmmm1000 +SWAP.W Rm,Rn 0110nnnnmmmm1001 +XTRCT Rm,Rn 0010nnnnmmmm1101 +ADD Rm,Rn 0011nnnnmmmm1100 +ADD #imm,Rn 0111nnnniiiiiiii +ADDC Rm,Rn 0011nnnnmmmm1110 +ADDV Rm,Rn 0011nnnnmmmm1111 +CMP/EQ #imm,R0 10001000iiiiiiii +CMP/EQ Rm,Rn 0011nnnnmmmm0000 +CMP/HS Rm,Rn 0011nnnnmmmm0010 +CMP/GE Rm,Rn 0011nnnnmmmm0011 +CMP/HI Rm,Rn 0011nnnnmmmm0110 +CMP/GT Rm,Rn 0011nnnnmmmm0111 +CMP/PZ Rn 0100nnnn00010001 +CMP/PL Rn 0100nnnn00010101 +CMP/ST Rm,Rn 0010nnnnmmmm1100 +DIV1 Rm,Rn 0011nnnnmmmm0100 +DMULS. Rm,Rn 0011nnnnmmmm1101 +DMULU.L Rm,Rn 0011nnnnmmmm0101 +EXTS.B Rm,Rn 0110nnnnmmmm1110 +EXTS.W Rm,Rn 0110nnnnmmmm1111 +EXTU.B Rm,Rn 0110nnnnmmmm1100 +EXTU.W Rm,Rn 0110nnnnmmmm1101 +MAC @Rm+,@Rn+ 0100nnnnmmmm1111 +MULS.W Rm,Rn 0010nnnnmmmm1111 +MULU.W Rm,Rn 0010nnnnmmmm1110 +NEG Rm,Rn 0110nnnnmmmm1011 +NEGC Rm,Rn 0110nnnnmmmm1010 +SUB Rm,Rn 0011nnnnmmmm1000 +SUBC Rm,Rn 0011nnnnmmmm1010 +SUBV Rm,Rn 0011nnnnmmmm1011 +AND Rm,Rn 0010nnnnmmmm1001 +AND #imm,R0 11001001iiiiiiii +AND.B #imm,@(R0,GBR) 11001101iiiiiiii +NOT Rm,Rn 0110nnnnmmmm0111 +OR Rm,Rn 0010nnnnmmmm1011 +OR #imm,R0 11001011iiiiiiii +OR.B #imm,@(R0,GBR) 11001111iiiiiiii +TAS.B @Rn 0100nnnn00011011 +TST Rm,Rn 0010nnnnmmmm1000 +TST #imm,R0 11001000iiiiiiii +TST.B #imm,@(R0,GBR) 11001100iiiiiiii +XOR Rm,Rn 0010nnnnmmmm1010 +XOR #imm,R0 11001010iiiiiiii +XOR.B #imm,@(R0,GBR) 11001110iiiiiiii +ROTL Rn 0100nnnn00000100 +ROTR Rn 0100nnnn00000101 +ROTCL Rn 0100nnnn00100100 +ROTCR Rn 0100nnnn00100101 +SHAL Rn 0100nnnn00100000 +SHAR Rn 0100nnnn00100001 +SHLL Rn 0100nnnn00000000 +SHLR Rn 0100nnnn00000001 +SHLL2 Rn 0100nnnn00001000 +SHLR2 Rn 0100nnnn00001001 +SHLL8 Rn 0100nnnn00011000 +SHLR8 Rn 0100nnnn00011001 +SHLL16 Rn 0100nnnn00101000 +SHLR16 Rn 0100nnnn00101001 +LDC Rm,GBR 0100mmmm00011110 +LDC Rm,VBR 0100mmmm00101110 +LDC.L @Rm+,GBR 0100mmmm00010111 +LDC.L @Rm+,VBR 0100mmmm00100111 +LDS Rm,MACH 0100mmmm00001010 +LDS Rm,MACL 0100mmmm00011010 +LDS Rm,PR 0100mmmm00101010 +LDS.L @Rm+,MACH 0100mmmm00000110 +LDS.L @Rm+,MACL 0100mmmm00010110 +LDS.L @Rm+,PR 0100mmmm00100110 +STC.L SR,@–Rn 0100nnnn00000011 +STC.L GBR,@–Rn 0100nnnn00010011 +STC.L VBR,@–Rn 0100nnnn00100011 +STS.L MACH,@–Rn 0100nnnn00000010 +STS.L MACL,@–Rn 0100nnnn00010010 +STS.L PR,@–Rn 0100nnnn00100010 +TRAPA #imm 11000011iiiiiiii */ #define DELAYED_OP \ @@ -369,6 +593,18 @@ static int sh2_translate_op4(int op) goto default_; \ } +#define GET_Fx() \ + ((op >> 4) & 0x0f) + +#define GET_Rm GET_Fx + +#define GET_Rn() \ + ((op >> 8) & 0x0f) + +#define CHECK_FX_GT_3() \ + if (GET_Fx() > 3) \ + goto default_ + static void *sh2_translate(SH2 *sh2, block_desc *other_block) { void *block_entry; @@ -377,7 +613,7 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) int op, delayed_op = 0, test_irq = 0; int tcache_id = 0, blkid = 0; int cycles = 0; - u32 tmp, tmp2; + u32 tmp, tmp2, tmp3; // validate PC tmp = sh2->pc >> 29; @@ -438,7 +674,27 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) switch ((op >> 12) & 0x0f) { case 0x00: - switch (op & 0x0f) { + switch (op & 0x0f) + { + case 0x02: + tmp = rcache_get_reg(GET_Rn(), RC_GR_WRITE); + switch (GET_Fx()) + { + case 0: // STC SR,Rn 0000nnnn00000010 + tmp2 = SHR_SR; + break; + case 1: // STC GBR,Rn 0000nnnn00010010 + tmp2 = SHR_GBR; + break; + case 2: // STC VBR,Rn 0000nnnn00100010 + tmp2 = SHR_VBR; + break; + default: + goto default_; + } + tmp2 = rcache_get_reg(tmp2, RC_GR_READ); + emith_move_r_r(tmp, tmp2); + goto end_op; case 0x03: CHECK_UNHANDLED_BITS(0xd0); // BRAF Rm 0000mmmm00100011 @@ -447,24 +703,106 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) if (!(op & 0x20)) emit_move_r_imm32(SHR_PR, pc + 2); tmp = rcache_get_reg(SHR_PPC, RC_GR_WRITE); - tmp2 = rcache_get_reg((op >> 8) & 0x0f, RC_GR_READ); + tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); emith_move_r_r(tmp, tmp2); emith_add_r_imm(tmp, pc + 2); cycles++; goto end_op; + case 0x04: // MOV.B Rm,@(R0,Rn) 0000nnnnmmmm0100 + case 0x05: // MOV.W Rm,@(R0,Rn) 0000nnnnmmmm0101 + case 0x06: // MOV.L Rm,@(R0,Rn) 0000nnnnmmmm0110 + rcache_clean(); + tmp = rcache_get_reg_arg(0, SHR_R0); + tmp2 = rcache_get_reg_arg(1, GET_Rm()); + tmp3 = rcache_get_reg(GET_Rn(), RC_GR_READ); + emith_add_r_r(tmp, tmp3); + emit_memhandler_write(op & 3); + goto end_op; + case 0x07: + // MUL.L Rm,Rn 0000nnnnmmmm0111 + tmp = rcache_get_reg(GET_Rn(), RC_GR_READ); + tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); + tmp3 = rcache_get_reg(SHR_MACL, RC_GR_WRITE); + emith_mul(tmp3, tmp2, tmp); + cycles++; + goto end_op; + case 0x08: + CHECK_UNHANDLED_BITS(0xf00); + switch (GET_Fx()) + { + case 0: // CLRT 0000000000001000 + tmp = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_bic_r_imm(tmp, T); + break; + case 1: // SETT 0000000000011000 + tmp = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_or_r_imm(tmp, T); + break; + case 2: // CLRMAC 0000000000101000 + tmp = rcache_get_reg(SHR_MACL, RC_GR_WRITE); + emith_move_r_imm(tmp, 0); + tmp = rcache_get_reg(SHR_MACH, RC_GR_WRITE); + emith_move_r_imm(tmp, 0); + break; + default: + goto default_; + } + goto end_op; case 0x09: - CHECK_UNHANDLED_BITS(0xf0); - // NOP 0000000000001001 + switch (GET_Fx()) + { + case 0: // NOP 0000000000001001 + CHECK_UNHANDLED_BITS(0xf00); + 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); + break; + case 2: // MOVT Rn 0000nnnn00101001 + tmp = rcache_get_reg(SHR_SR, RC_GR_READ); + tmp2 = rcache_get_reg(GET_Rn(), RC_GR_WRITE); + emith_clear_msb(tmp2, tmp, 31); + break; + default: + goto default_; + } + goto end_op; + case 0x0a: + tmp = rcache_get_reg(GET_Rn(), RC_GR_WRITE); + switch (GET_Fx()) + { + case 0: // STS MACH,Rn 0000nnnn00001010 + tmp2 = rcache_get_reg(SHR_MACH, RC_GR_READ); + break; + case 1: // STS MACL,Rn 0000nnnn00011010 + tmp2 = rcache_get_reg(SHR_MACL, RC_GR_READ); + break; + case 2: // STS PR,Rn 0000nnnn00101010 + tmp2 = rcache_get_reg(SHR_PR, RC_GR_READ); + break; + default: + goto default_; + } + emith_move_r_r(tmp, tmp2); goto end_op; case 0x0b: - CHECK_UNHANDLED_BITS(0xd0); - DELAYED_OP; - if (!(op & 0x20)) { - // RTS 0000000000001011 + CHECK_UNHANDLED_BITS(0xf00); + switch (GET_Fx()) + { + case 0: // RTS 0000000000001011 + DELAYED_OP; emit_move_r_r(SHR_PPC, SHR_PR); cycles++; - } else { - // RTE 0000000000101011 + break; + case 1: // SLEEP 0000000000011011 + emit_move_r_imm32(SHR_PC, pc - 2); + tmp = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_clear_msb(tmp, tmp, 20); // clear cycles + test_irq = 1; + cycles = 1; + break; + case 2: // RTE 0000000000101011 //emit_move_r_r(SHR_PC, SHR_PR); emit_move_r_imm32(SHR_PC, pc - 2); rcache_flush(); @@ -474,18 +812,101 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) emit_move_r_r(SHR_PPC, SHR_PC); test_irq = 1; cycles += 3; + break; + default: + goto default_; } goto end_op; + case 0x0c: // MOV.B @(R0,Rm),Rn 0000nnnnmmmm1100 + case 0x0d: // MOV.W @(R0,Rm),Rn 0000nnnnmmmm1101 + case 0x0e: // MOV.L @(R0,Rm),Rn 0000nnnnmmmm1110 + rcache_clean(); + tmp = rcache_get_reg_arg(0, SHR_R0); + tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); + emith_add_r_r(tmp, tmp2); + tmp = emit_memhandler_read(op & 3); + tmp2 = rcache_get_reg(GET_Rn(), RC_GR_WRITE); + rcache_free_tmp(tmp); + if ((op & 3) != 2) { + emith_sext(tmp2, tmp, (op & 1) ? 16 : 8); + } else + emith_move_r_r(tmp2, tmp); + goto end_op; + case 0x0f: // MAC.L @Rm+,@Rn+ 0000nnnnmmmm1111 + // TODO + break; + } + goto default_; + + case 0x01: + // MOV.L Rm,@(disp,Rn) 0001nnnnmmmmdddd + rcache_clean(); + tmp = rcache_get_reg_arg(0, GET_Rn()); + tmp2 = rcache_get_reg_arg(1, GET_Rm()); + emith_add_r_imm(tmp, (op & 0x0f) * 4); + emit_memhandler_write(2); + goto end_op; + + case 0x02: + switch (op & 0x0f) + { + case 0x00: // MOV.B Rm,@Rn 0010nnnnmmmm0000 + case 0x01: // MOV.W Rm,@Rn 0010nnnnmmmm0001 + case 0x02: // MOV.L Rm,@Rn 0010nnnnmmmm0010 + rcache_clean(); + rcache_get_reg_arg(0, GET_Rn()); + rcache_get_reg_arg(1, GET_Rm()); + emit_memhandler_write(op & 3); + goto end_op; + case 0x04: // MOV.B Rm,@–Rn 0010nnnnmmmm0100 + case 0x05: // MOV.W Rm,@–Rn 0010nnnnmmmm0101 + case 0x06: // MOV.L Rm,@–Rn 0010nnnnmmmm0110 + tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); + emith_sub_r_imm(tmp, (1 << (op & 3))); + rcache_clean(); + rcache_get_reg_arg(0, GET_Rn()); + rcache_get_reg_arg(1, GET_Rm()); + emit_memhandler_write(op & 3); + goto end_op; + case 0x07: // DIV0S Rm,Rn 0010nnnnmmmm0111 + tmp = 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_tst_r_imm(tmp2, (1<<31)); + EMITH_SJMP_START(DCOND_EQ); + emith_or_r_imm_c(DCOND_NE, tmp, 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_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_SJMP_END(DCOND_PL); + goto end_op; } goto default_; case 0x04: switch (op & 0x0f) { case 0x00: - if ((op & 0xf0) != 1) + if ((op & 0xf0) != 0x10) goto default_; // DT Rn 0100nnnn00010000 - goto default_; + if (p32x_sh2_read16(pc, sh2) == 0x8bfd) { // BF #-2 + emith_sh2_dtbf_loop(); + goto end_op; + } + tmp = rcache_get_reg((op >> 8) & 0x0f, RC_GR_RMW); + tmp2 = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_bic_r_imm(tmp2, T); + emith_subf_r_imm(tmp, 1); + EMITH_SJMP_START(DCOND_NE); + emith_or_r_imm_c(DCOND_EQ, tmp2, T); + EMITH_SJMP_END(DCOND_NE); + goto end_op; case 0x07: if ((op & 0xf0) != 0) goto default_; @@ -524,17 +945,27 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) // BT label 10001001dddddddd case 0x0900: // BF label 10001011dddddddd - case 0x0b00: - tmp = ((signed int)(op << 24) >> 23); - tmp2 = delayed_op ? SHR_PPC : SHR_PC; - emit_move_r_imm32(tmp2, pc + (delayed_op ? 2 : 0)); - emith_test_t(); - EMITH_CONDITIONAL(emit_move_r_imm32(tmp2, pc + tmp + 2), (op & 0x0200) ? 1 : 0); + case 0x0b00: { + // jmp_cond ~ cond when guest doesn't jump + int jmp_cond = (op & 0x0200) ? DCOND_NE : DCOND_EQ; + int insn_cond = (op & 0x0200) ? DCOND_EQ : DCOND_NE; + signed int offs = ((signed int)(op << 24) >> 23); + tmp = rcache_get_reg(delayed_op ? SHR_PPC : SHR_PC, RC_GR_WRITE); + emith_move_r_imm(tmp, pc + (delayed_op ? 2 : 0)); + emith_sh2_test_t(); + EMITH_SJMP_START(jmp_cond); + if (!delayed_op) + offs += 2; + if (offs < 0) { + emith_sub_r_imm_c(insn_cond, tmp, -offs); + } else + emith_add_r_imm_c(insn_cond, tmp, offs); + EMITH_SJMP_END(jmp_cond); cycles += 2; if (!delayed_op) goto end_block; goto end_op; - } + }} goto default_; case 0x0a: