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authorths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>2007-10-08 12:52:43 +0000
committerths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>2007-10-08 12:52:43 +0000
commit4fa551d76893dfdd976d2745a42c17ca1cedaa55 (patch)
treec292ffaacb91dcab054f288e7dc8f13dfb10f9f3 /target-cris
parent5478670f3de77193cecf53c7df3a31b488a99cf4 (diff)
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CRIS micro-ops, by Edgar E. Iglesias.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3360 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-cris')
-rw-r--r--target-cris/op.c1289
1 files changed, 1289 insertions, 0 deletions
diff --git a/target-cris/op.c b/target-cris/op.c
new file mode 100644
index 0000000..3ce9888
--- /dev/null
+++ b/target-cris/op.c
@@ -0,0 +1,1289 @@
+/*
+ * CRIS emulation micro-operations for qemu.
+ *
+ * Copyright (c) 2007 Edgar E. Iglesias, Axis Communications AB.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include "exec.h"
+
+#define REGNAME r0
+#define REG (env->regs[0])
+#include "op_template.h"
+
+#define REGNAME r1
+#define REG (env->regs[1])
+#include "op_template.h"
+
+#define REGNAME r2
+#define REG (env->regs[2])
+#include "op_template.h"
+
+#define REGNAME r3
+#define REG (env->regs[3])
+#include "op_template.h"
+
+#define REGNAME r4
+#define REG (env->regs[4])
+#include "op_template.h"
+
+#define REGNAME r5
+#define REG (env->regs[5])
+#include "op_template.h"
+
+#define REGNAME r6
+#define REG (env->regs[6])
+#include "op_template.h"
+
+#define REGNAME r7
+#define REG (env->regs[7])
+#include "op_template.h"
+
+#define REGNAME r8
+#define REG (env->regs[8])
+#include "op_template.h"
+
+#define REGNAME r9
+#define REG (env->regs[9])
+#include "op_template.h"
+
+#define REGNAME r10
+#define REG (env->regs[10])
+#include "op_template.h"
+
+#define REGNAME r11
+#define REG (env->regs[11])
+#include "op_template.h"
+
+#define REGNAME r12
+#define REG (env->regs[12])
+#include "op_template.h"
+
+#define REGNAME r13
+#define REG (env->regs[13])
+#include "op_template.h"
+
+#define REGNAME r14
+#define REG (env->regs[14])
+#include "op_template.h"
+
+#define REGNAME r15
+#define REG (env->regs[15])
+#include "op_template.h"
+
+
+#define REGNAME p0
+#define REG (env->pregs[0])
+#include "op_template.h"
+
+#define REGNAME p1
+#define REG (env->pregs[1])
+#include "op_template.h"
+
+#define REGNAME p2
+#define REG (env->pregs[2])
+#include "op_template.h"
+
+#define REGNAME p3
+#define REG (env->pregs[3])
+#include "op_template.h"
+
+#define REGNAME p4
+#define REG (env->pregs[4])
+#include "op_template.h"
+
+#define REGNAME p5
+#define REG (env->pregs[5])
+#include "op_template.h"
+
+#define REGNAME p6
+#define REG (env->pregs[6])
+#include "op_template.h"
+
+#define REGNAME p7
+#define REG (env->pregs[7])
+#include "op_template.h"
+
+#define REGNAME p8
+#define REG (env->pregs[8])
+#include "op_template.h"
+
+#define REGNAME p9
+#define REG (env->pregs[9])
+#include "op_template.h"
+
+#define REGNAME p10
+#define REG (env->pregs[10])
+#include "op_template.h"
+
+#define REGNAME p11
+#define REG (env->pregs[11])
+#include "op_template.h"
+
+#define REGNAME p12
+#define REG (env->pregs[12])
+#include "op_template.h"
+
+#define REGNAME p13
+#define REG (env->pregs[13])
+#include "op_template.h"
+
+#define REGNAME p14
+#define REG (env->pregs[14])
+#include "op_template.h"
+
+#define REGNAME p15
+#define REG (env->pregs[15])
+#include "op_template.h"
+
+/* Microcode. */
+
+void OPPROTO op_exit_tb (void)
+{
+ EXIT_TB();
+}
+
+void OPPROTO op_goto_tb0 (void)
+{
+ GOTO_TB(op_goto_tb0, PARAM1, 0);
+ RETURN();
+}
+
+void OPPROTO op_goto_tb1 (void)
+{
+ GOTO_TB(op_goto_tb1, PARAM1, 1);
+ RETURN();
+}
+
+void OPPROTO op_break_im(void)
+{
+ env->trapnr = PARAM1;
+ env->exception_index = EXCP_BREAK;
+ cpu_loop_exit();
+}
+
+void OPPROTO op_debug(void)
+{
+ env->exception_index = EXCP_DEBUG;
+ cpu_loop_exit();
+}
+
+void OPPROTO op_exec_insn(void)
+{
+ env->stats.exec_insns++;
+ RETURN();
+}
+void OPPROTO op_exec_load(void)
+{
+ env->stats.exec_loads++;
+ RETURN();
+}
+void OPPROTO op_exec_store(void)
+{
+ env->stats.exec_stores++;
+ RETURN();
+}
+
+void OPPROTO op_ccs_lshift (void)
+{
+ uint32_t ccs;
+
+ /* Apply the ccs shift. */
+ ccs = env->pregs[SR_CCS];
+ ccs = (ccs & 0xc0000000) | ((ccs << 12) >> 2);
+ env->pregs[SR_CCS] = ccs;
+}
+void OPPROTO op_ccs_rshift (void)
+{
+ uint32_t ccs;
+
+ /* Apply the ccs shift. */
+ ccs = env->pregs[SR_CCS];
+ ccs = (ccs & 0xc0000000) | (ccs >> 10);
+ env->pregs[SR_CCS] = ccs;
+}
+
+void OPPROTO op_setf (void)
+{
+ env->pregs[SR_CCS] |= PARAM1;
+ RETURN();
+}
+
+void OPPROTO op_clrf (void)
+{
+ env->pregs[SR_CCS] &= ~PARAM1;
+ RETURN();
+}
+
+void OPPROTO op_movl_debug1_T0 (void)
+{
+ env->debug1 = T0;
+ RETURN();
+}
+
+void OPPROTO op_movl_debug2_T0 (void)
+{
+ env->debug2 = T0;
+ RETURN();
+}
+
+void OPPROTO op_movl_debug3_T0 (void)
+{
+ env->debug3 = T0;
+ RETURN();
+}
+void OPPROTO op_movl_debug1_T1 (void)
+{
+ env->debug1 = T1;
+ RETURN();
+}
+
+void OPPROTO op_movl_debug2_T1 (void)
+{
+ env->debug2 = T1;
+ RETURN();
+}
+
+void OPPROTO op_movl_debug3_T1 (void)
+{
+ env->debug3 = T1;
+ RETURN();
+}
+void OPPROTO op_movl_debug3_im (void)
+{
+ env->debug3 = PARAM1;
+ RETURN();
+}
+void OPPROTO op_movl_T0_flags (void)
+{
+ T0 = env->pregs[SR_CCS];
+ RETURN();
+}
+void OPPROTO op_movl_flags_T0 (void)
+{
+ env->pregs[SR_CCS] = T0;
+ RETURN();
+}
+
+void OPPROTO op_movl_sreg_T0 (void)
+{
+ env->sregs[env->pregs[SR_SRS]][PARAM1] = T0;
+ RETURN();
+}
+
+void OPPROTO op_movl_tlb_lo_T0 (void)
+{
+ int srs;
+ srs = env->pregs[SR_SRS];
+ if (srs == 1 || srs == 2)
+ {
+ int set;
+ int idx;
+ uint32_t lo, hi;
+
+ idx = set = env->sregs[SFR_RW_MM_TLB_SEL];
+ set >>= 4;
+ set &= 3;
+
+ idx &= 31;
+ /* We've just made a write to tlb_lo. */
+ lo = env->sregs[SFR_RW_MM_TLB_LO];
+ hi = env->sregs[SFR_RW_MM_TLB_HI];
+ env->tlbsets[srs - 1][set][idx].lo = lo;
+ env->tlbsets[srs - 1][set][idx].hi = hi;
+ }
+
+ RETURN();
+}
+
+void OPPROTO op_movl_T0_sreg (void)
+{
+ T0 = env->sregs[env->pregs[SR_SRS]][PARAM1];
+ RETURN();
+}
+
+void OPPROTO op_update_cc (void)
+{
+ env->cc_op = PARAM1;
+ env->cc_dest = PARAM2;
+ env->cc_src = PARAM3;
+ RETURN();
+}
+
+void OPPROTO op_update_cc_op (void)
+{
+ env->cc_op = PARAM1;
+ RETURN();
+}
+
+void OPPROTO op_update_cc_mask (void)
+{
+ env->cc_mask = PARAM1;
+ RETURN();
+}
+
+void OPPROTO op_update_cc_dest_T0 (void)
+{
+ env->cc_dest = T0;
+ RETURN();
+}
+
+void OPPROTO op_update_cc_result_T0 (void)
+{
+ env->cc_result = T0;
+ RETURN();
+}
+
+void OPPROTO op_update_cc_size_im (void)
+{
+ env->cc_size = PARAM1;
+ RETURN();
+}
+
+void OPPROTO op_update_cc_src_T1 (void)
+{
+ env->cc_src = T1;
+ RETURN();
+}
+void OPPROTO op_update_cc_x (void)
+{
+ env->cc_x_live = PARAM1;
+ env->cc_x = PARAM2;
+ RETURN();
+}
+
+/* FIXME: is this allowed? */
+extern inline void evaluate_flags_writeback(uint32_t flags)
+{
+ int x;
+
+ /* Extended arithmetics, leave the z flag alone. */
+ env->debug3 = env->pregs[SR_CCS];
+
+ if (env->cc_x_live)
+ x = env->cc_x;
+ else
+ x = env->pregs[SR_CCS] & X_FLAG;
+
+ if ((x || env->cc_op == CC_OP_ADDC)
+ && flags & Z_FLAG)
+ env->cc_mask &= ~Z_FLAG;
+
+ /* all insn clear the x-flag except setf or clrf. */
+ env->pregs[SR_CCS] &= ~(env->cc_mask | X_FLAG);
+ flags &= env->cc_mask;
+ env->pregs[SR_CCS] |= flags;
+ RETURN();
+}
+
+void OPPROTO op_evaluate_flags_muls(void)
+{
+ uint32_t src;
+ uint32_t dst;
+ uint32_t res;
+ uint32_t flags = 0;
+ /* were gonna have to redo the muls. */
+ int64_t tmp, t0 ,t1;
+ int32_t mof;
+ int dneg;
+
+ src = env->cc_src;
+ dst = env->cc_dest;
+ res = env->cc_result;
+
+
+ /* cast into signed values to make GCC sign extend. */
+ t0 = (int32_t)src;
+ t1 = (int32_t)dst;
+ dneg = ((int32_t)res) < 0;
+
+ tmp = t0 * t1;
+ mof = tmp >> 32;
+ if (tmp == 0)
+ flags |= Z_FLAG;
+ else if (tmp < 0)
+ flags |= N_FLAG;
+ if ((dneg && mof != -1)
+ || (!dneg && mof != 0))
+ flags |= V_FLAG;
+ evaluate_flags_writeback(flags);
+ RETURN();
+}
+
+void OPPROTO op_evaluate_flags_mulu(void)
+{
+ uint32_t src;
+ uint32_t dst;
+ uint32_t res;
+ uint32_t flags = 0;
+ /* were gonna have to redo the muls. */
+ uint64_t tmp, t0 ,t1;
+ uint32_t mof;
+
+ src = env->cc_src;
+ dst = env->cc_dest;
+ res = env->cc_result;
+
+
+ /* cast into signed values to make GCC sign extend. */
+ t0 = src;
+ t1 = dst;
+
+ tmp = t0 * t1;
+ mof = tmp >> 32;
+ if (tmp == 0)
+ flags |= Z_FLAG;
+ else if (tmp >> 63)
+ flags |= N_FLAG;
+ if (mof)
+ flags |= V_FLAG;
+
+ evaluate_flags_writeback(flags);
+ RETURN();
+}
+
+void OPPROTO op_evaluate_flags_mcp(void)
+{
+ uint32_t src;
+ uint32_t dst;
+ uint32_t res;
+ uint32_t flags = 0;
+
+ src = env->cc_src;
+ dst = env->cc_dest;
+ res = env->cc_result;
+
+ if ((res & 0x80000000L) != 0L)
+ {
+ flags |= N_FLAG;
+ if (((src & 0x80000000L) == 0L)
+ && ((dst & 0x80000000L) == 0L))
+ {
+ flags |= V_FLAG;
+ }
+ else if (((src & 0x80000000L) != 0L) &&
+ ((dst & 0x80000000L) != 0L))
+ {
+ flags |= R_FLAG;
+ }
+ }
+ else
+ {
+ if (res == 0L)
+ flags |= Z_FLAG;
+ if (((src & 0x80000000L) != 0L)
+ && ((dst & 0x80000000L) != 0L))
+ flags |= V_FLAG;
+ if ((dst & 0x80000000L) != 0L
+ || (src & 0x80000000L) != 0L)
+ flags |= R_FLAG;
+ }
+
+ evaluate_flags_writeback(flags);
+ RETURN();
+}
+
+void OPPROTO op_evaluate_flags_alu_4(void)
+{
+ uint32_t src;
+ uint32_t dst;
+ uint32_t res;
+ uint32_t flags = 0;
+
+ src = env->cc_src;
+ dst = env->cc_dest;
+ res = env->cc_result;
+
+ if ((res & 0x80000000L) != 0L)
+ {
+ flags |= N_FLAG;
+ if (((src & 0x80000000L) == 0L)
+ && ((dst & 0x80000000L) == 0L))
+ {
+ flags |= V_FLAG;
+ }
+ else if (((src & 0x80000000L) != 0L) &&
+ ((dst & 0x80000000L) != 0L))
+ {
+ flags |= C_FLAG;
+ }
+ }
+ else
+ {
+ if (res == 0L)
+ flags |= Z_FLAG;
+ if (((src & 0x80000000L) != 0L)
+ && ((dst & 0x80000000L) != 0L))
+ flags |= V_FLAG;
+ if ((dst & 0x80000000L) != 0L
+ || (src & 0x80000000L) != 0L)
+ flags |= C_FLAG;
+ }
+
+ if (env->cc_op == CC_OP_SUB
+ || env->cc_op == CC_OP_CMP) {
+ flags ^= C_FLAG;
+ }
+ evaluate_flags_writeback(flags);
+ RETURN();
+}
+
+void OPPROTO op_evaluate_flags_move_4 (void)
+{
+ uint32_t src;
+ uint32_t res;
+ uint32_t flags = 0;
+
+ src = env->cc_src;
+ res = env->cc_result;
+
+ if ((int32_t)res < 0)
+ flags |= N_FLAG;
+ else if (res == 0L)
+ flags |= Z_FLAG;
+
+ evaluate_flags_writeback(flags);
+ RETURN();
+}
+void OPPROTO op_evaluate_flags_move_2 (void)
+{
+ uint32_t src;
+ uint32_t flags = 0;
+ uint16_t res;
+
+ src = env->cc_src;
+ res = env->cc_result;
+
+ if ((int16_t)res < 0L)
+ flags |= N_FLAG;
+ else if (res == 0)
+ flags |= Z_FLAG;
+
+ evaluate_flags_writeback(flags);
+ RETURN();
+}
+
+/* TODO: This is expensive. We could split things up and only evaluate part of
+ CCR on a need to know basis. For now, we simply re-evaluate everything. */
+void OPPROTO op_evaluate_flags (void)
+{
+ uint32_t src;
+ uint32_t dst;
+ uint32_t res;
+ uint32_t flags = 0;
+
+ src = env->cc_src;
+ dst = env->cc_dest;
+ res = env->cc_result;
+
+
+ /* Now, evaluate the flags. This stuff is based on
+ Per Zander's CRISv10 simulator. */
+ switch (env->cc_size)
+ {
+ case 1:
+ if ((res & 0x80L) != 0L)
+ {
+ flags |= N_FLAG;
+ if (((src & 0x80L) == 0L)
+ && ((dst & 0x80L) == 0L))
+ {
+ flags |= V_FLAG;
+ }
+ else if (((src & 0x80L) != 0L)
+ && ((dst & 0x80L) != 0L))
+ {
+ flags |= C_FLAG;
+ }
+ }
+ else
+ {
+ if ((res & 0xFFL) == 0L)
+ {
+ flags |= Z_FLAG;
+ }
+ if (((src & 0x80L) != 0L)
+ && ((dst & 0x80L) != 0L))
+ {
+ flags |= V_FLAG;
+ }
+ if ((dst & 0x80L) != 0L
+ || (src & 0x80L) != 0L)
+ {
+ flags |= C_FLAG;
+ }
+ }
+ break;
+ case 2:
+ if ((res & 0x8000L) != 0L)
+ {
+ flags |= N_FLAG;
+ if (((src & 0x8000L) == 0L)
+ && ((dst & 0x8000L) == 0L))
+ {
+ flags |= V_FLAG;
+ }
+ else if (((src & 0x8000L) != 0L)
+ && ((dst & 0x8000L) != 0L))
+ {
+ flags |= C_FLAG;
+ }
+ }
+ else
+ {
+ if ((res & 0xFFFFL) == 0L)
+ {
+ flags |= Z_FLAG;
+ }
+ if (((src & 0x8000L) != 0L)
+ && ((dst & 0x8000L) != 0L))
+ {
+ flags |= V_FLAG;
+ }
+ if ((dst & 0x8000L) != 0L
+ || (src & 0x8000L) != 0L)
+ {
+ flags |= C_FLAG;
+ }
+ }
+ break;
+ case 4:
+ if ((res & 0x80000000L) != 0L)
+ {
+ flags |= N_FLAG;
+ if (((src & 0x80000000L) == 0L)
+ && ((dst & 0x80000000L) == 0L))
+ {
+ flags |= V_FLAG;
+ }
+ else if (((src & 0x80000000L) != 0L) &&
+ ((dst & 0x80000000L) != 0L))
+ {
+ flags |= C_FLAG;
+ }
+ }
+ else
+ {
+ if (res == 0L)
+ flags |= Z_FLAG;
+ if (((src & 0x80000000L) != 0L)
+ && ((dst & 0x80000000L) != 0L))
+ flags |= V_FLAG;
+ if ((dst & 0x80000000L) != 0L
+ || (src & 0x80000000L) != 0L)
+ flags |= C_FLAG;
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (env->cc_op == CC_OP_SUB
+ || env->cc_op == CC_OP_CMP) {
+ flags ^= C_FLAG;
+ }
+ evaluate_flags_writeback(flags);
+ RETURN();
+}
+
+void OPPROTO op_extb_T0_T0 (void)
+{
+ T0 = ((int8_t)T0);
+ RETURN();
+}
+void OPPROTO op_extb_T1_T0 (void)
+{
+ T1 = ((int8_t)T0);
+ RETURN();
+}
+void OPPROTO op_extb_T1_T1 (void)
+{
+ T1 = ((int8_t)T1);
+ RETURN();
+}
+void OPPROTO op_zextb_T0_T0 (void)
+{
+ T0 = ((uint8_t)T0);
+ RETURN();
+}
+void OPPROTO op_zextb_T1_T0 (void)
+{
+ T1 = ((uint8_t)T0);
+ RETURN();
+}
+void OPPROTO op_zextb_T1_T1 (void)
+{
+ T1 = ((uint8_t)T1);
+ RETURN();
+}
+void OPPROTO op_extw_T0_T0 (void)
+{
+ T0 = ((int16_t)T0);
+ RETURN();
+}
+void OPPROTO op_extw_T1_T0 (void)
+{
+ T1 = ((int16_t)T0);
+ RETURN();
+}
+void OPPROTO op_extw_T1_T1 (void)
+{
+ T1 = ((int16_t)T1);
+ RETURN();
+}
+
+void OPPROTO op_zextw_T0_T0 (void)
+{
+ T0 = ((uint16_t)T0);
+ RETURN();
+}
+void OPPROTO op_zextw_T1_T0 (void)
+{
+ T1 = ((uint16_t)T0);
+ RETURN();
+}
+
+void OPPROTO op_zextw_T1_T1 (void)
+{
+ T1 = ((uint16_t)T1);
+ RETURN();
+}
+
+void OPPROTO op_movl_T0_im (void)
+{
+ T0 = PARAM1;
+ RETURN();
+}
+void OPPROTO op_movl_T1_im (void)
+{
+ T1 = PARAM1;
+ RETURN();
+}
+
+void OPPROTO op_addl_T0_im (void)
+{
+ T0 += PARAM1;
+ RETURN();
+}
+
+void OPPROTO op_addl_T1_im (void)
+{
+ T1 += PARAM1;
+ RETURN();
+
+}
+void OPPROTO op_subl_T0_im (void)
+{
+ T0 -= PARAM1;
+ RETURN();
+}
+
+void OPPROTO op_addxl_T0_C (void)
+{
+ if (env->pregs[SR_CCS] & X_FLAG)
+ T0 += !!(env->pregs[SR_CCS] & C_FLAG);
+ RETURN();
+}
+void OPPROTO op_subxl_T0_C (void)
+{
+ if (env->pregs[SR_CCS] & X_FLAG)
+ T0 -= !!(env->pregs[SR_CCS] & C_FLAG);
+ RETURN();
+}
+void OPPROTO op_addl_T0_C (void)
+{
+ T0 += !!(env->pregs[SR_CCS] & C_FLAG);
+ RETURN();
+}
+void OPPROTO op_addl_T0_R (void)
+{
+ T0 += !!(env->pregs[SR_CCS] & R_FLAG);
+ RETURN();
+}
+
+void OPPROTO op_clr_R (void)
+{
+ env->pregs[SR_CCS] &= ~R_FLAG;
+ RETURN();
+}
+
+
+void OPPROTO op_andl_T0_im (void)
+{
+ T0 &= PARAM1;
+ RETURN();
+}
+
+void OPPROTO op_andl_T1_im (void)
+{
+ T1 &= PARAM1;
+ RETURN();
+}
+
+void OPPROTO op_movl_T0_T1 (void)
+{
+ T0 = T1;
+ RETURN();
+}
+
+void OPPROTO op_swp_T0_T1 (void)
+{
+ T0 ^= T1;
+ T1 ^= T0;
+ T0 ^= T1;
+ RETURN();
+}
+
+void OPPROTO op_movl_T1_T0 (void)
+{
+ T1 = T0;
+ RETURN();
+}
+
+void OPPROTO op_movl_pc_T0 (void)
+{
+ env->pc = T0;
+ RETURN();
+}
+
+void OPPROTO op_movl_T0_0 (void)
+{
+ T0 = 0;
+ RETURN();
+}
+
+void OPPROTO op_addl_T0_T1 (void)
+{
+ T0 += T1;
+ RETURN();
+}
+
+void OPPROTO op_subl_T0_T1 (void)
+{
+ T0 -= T1;
+ RETURN();
+}
+
+void OPPROTO op_absl_T1_T1 (void)
+{
+ int32_t st = T1;
+
+ T1 = st < 0 ? -st : st;
+ RETURN();
+}
+
+void OPPROTO op_muls_T0_T1 (void)
+{
+ int64_t tmp, t0 ,t1;
+
+ /* cast into signed values to make GCC sign extend these babies. */
+ t0 = (int32_t)T0;
+ t1 = (int32_t)T1;
+
+ tmp = t0 * t1;
+ T0 = tmp & 0xffffffff;
+ env->pregs[REG_MOF] = tmp >> 32;
+ RETURN();
+}
+
+void OPPROTO op_mulu_T0_T1 (void)
+{
+ uint64_t tmp, t0 ,t1;
+ t0 = T0;
+ t1 = T1;
+
+ tmp = t0 * t1;
+ T0 = tmp & 0xffffffff;
+ env->pregs[REG_MOF] = tmp >> 32;
+ RETURN();
+}
+
+void OPPROTO op_dstep_T0_T1 (void)
+{
+ T0 <<= 1;
+ if (T0 >= T1)
+ T0 -= T1;
+ RETURN();
+}
+
+void OPPROTO op_orl_T0_T1 (void)
+{
+ T0 |= T1;
+ RETURN();
+}
+
+void OPPROTO op_andl_T0_T1 (void)
+{
+ T0 &= T1;
+ RETURN();
+}
+
+void OPPROTO op_xorl_T0_T1 (void)
+{
+ T0 ^= T1;
+ RETURN();
+}
+
+void OPPROTO op_lsll_T0_T1 (void)
+{
+ int s = T1;
+ if (s > 31)
+ T0 = 0;
+ else
+ T0 <<= s;
+ RETURN();
+}
+
+void OPPROTO op_lsll_T0_im (void)
+{
+ T0 <<= PARAM1;
+ RETURN();
+}
+
+void OPPROTO op_lsrl_T0_T1 (void)
+{
+ int s = T1;
+ if (s > 31)
+ T0 = 0;
+ else
+ T0 >>= s;
+ RETURN();
+}
+
+/* Rely on GCC emitting an arithmetic shift for signed right shifts. */
+void OPPROTO op_asrl_T0_T1 (void)
+{
+ int s = T1;
+ if (s > 31)
+ T0 = T0 & 0x80000000 ? -1 : 0;
+ else
+ T0 = (int32_t)T0 >> s;
+ RETURN();
+}
+
+void OPPROTO op_btst_T0_T1 (void)
+{
+ /* FIXME: clean this up. */
+
+ /* des ref:
+ The N flag is set according to the selected bit in the dest reg.
+ The Z flag is set if the selected bit and all bits to the right are
+ zero.
+ The destination reg is not affected.*/
+ unsigned int fz, sbit, bset, mask, masked_t0;
+
+ sbit = T1 & 31;
+ bset = !!(T0 & (1 << sbit));
+ mask = sbit == 31 ? -1 : (1 << (sbit + 1)) - 1;
+ masked_t0 = T0 & mask;
+ fz = !(masked_t0 | bset);
+ /* Set the N and Z flags accordingly. */
+ T0 = (bset << 3) | (fz << 2);
+ RETURN();
+}
+
+void OPPROTO op_bound_T0_T1 (void)
+{
+ if (T0 > T1)
+ T0 = T1;
+ RETURN();
+}
+
+void OPPROTO op_lz_T0_T1 (void)
+{
+ if (T1 == 0)
+ T0 = 32;
+ else
+ T0 = __builtin_clz(T1);
+ RETURN();
+}
+
+void OPPROTO op_negl_T0_T1 (void)
+{
+ T0 = -T1;
+ RETURN();
+}
+
+void OPPROTO op_negl_T1_T1 (void)
+{
+ T1 = -T1;
+ RETURN();
+}
+
+void OPPROTO op_not_T0_T0 (void)
+{
+ T0 = ~(T0);
+ RETURN();
+}
+void OPPROTO op_not_T1_T1 (void)
+{
+ T1 = ~(T1);
+ RETURN();
+}
+
+void OPPROTO op_swapw_T0_T0 (void)
+{
+ T0 = (T0 << 16) | ((T0 >> 16));
+ RETURN();
+}
+
+void OPPROTO op_swapb_T0_T0 (void)
+{
+ T0 = ((T0 << 8) & 0xff00ff00) | ((T0 >> 8) & 0x00ff00ff);
+ RETURN();
+}
+
+void OPPROTO op_swapr_T0_T0 (void)
+{
+ T0 = (((T0 << 7) & 0x80808080) |
+ ((T0 << 5) & 0x40404040) |
+ ((T0 << 3) & 0x20202020) |
+ ((T0 << 1) & 0x10101010) |
+ ((T0 >> 1) & 0x08080808) |
+ ((T0 >> 3) & 0x04040404) |
+ ((T0 >> 5) & 0x02020202) |
+ ((T0 >> 7) & 0x01010101));
+ RETURN();
+}
+
+void OPPROTO op_tst_cc_eq (void) {
+ uint32_t flags = env->pregs[SR_CCS];
+ int z_set;
+
+ z_set = !!(flags & Z_FLAG);
+ T0 = z_set;
+ RETURN();
+}
+
+void OPPROTO op_tst_cc_eq_fast (void) {
+ T0 = !(env->cc_result);
+ RETURN();
+}
+
+void OPPROTO op_tst_cc_ne (void) {
+ uint32_t flags = env->pregs[SR_CCS];
+ int z_set;
+
+ z_set = !!(flags & Z_FLAG);
+ T0 = !z_set;
+ RETURN();
+}
+void OPPROTO op_tst_cc_ne_fast (void) {
+ T0 = !!(env->cc_result);
+ RETURN();
+}
+
+void OPPROTO op_tst_cc_cc (void) {
+ uint32_t flags = env->pregs[SR_CCS];
+ int c_set;
+
+ c_set = !!(flags & C_FLAG);
+ T0 = !c_set;
+ RETURN();
+}
+void OPPROTO op_tst_cc_cs (void) {
+ uint32_t flags = env->pregs[SR_CCS];
+ int c_set;
+
+ c_set = !!(flags & C_FLAG);
+ T0 = c_set;
+ RETURN();
+}
+
+void OPPROTO op_tst_cc_vc (void) {
+ uint32_t flags = env->pregs[SR_CCS];
+ int v_set;
+
+ v_set = !!(flags & V_FLAG);
+ T0 = !v_set;
+ RETURN();
+}
+void OPPROTO op_tst_cc_vs (void) {
+ uint32_t flags = env->pregs[SR_CCS];
+ int v_set;
+
+ v_set = !!(flags & V_FLAG);
+ T0 = v_set;
+ RETURN();
+}
+void OPPROTO op_tst_cc_pl (void) {
+ uint32_t flags = env->pregs[SR_CCS];
+ int n_set;
+
+ n_set = !!(flags & N_FLAG);
+ T0 = !n_set;
+ RETURN();
+}
+void OPPROTO op_tst_cc_pl_fast (void) {
+ T0 = ((int32_t)env->cc_result) >= 0;
+ RETURN();
+}
+
+void OPPROTO op_tst_cc_mi (void) {
+ uint32_t flags = env->pregs[SR_CCS];
+ int n_set;
+
+ n_set = !!(flags & N_FLAG);
+ T0 = n_set;
+ RETURN();
+}
+void OPPROTO op_tst_cc_mi_fast (void) {
+ T0 = ((int32_t)env->cc_result) < 0;
+ RETURN();
+}
+
+void OPPROTO op_tst_cc_ls (void) {
+ uint32_t flags = env->pregs[SR_CCS];
+ int c_set;
+ int z_set;
+
+ c_set = !!(flags & C_FLAG);
+ z_set = !!(flags & Z_FLAG);
+ T0 = c_set || z_set;
+ RETURN();
+}
+void OPPROTO op_tst_cc_hi (void) {
+ uint32_t flags = env->pregs[SR_CCS];
+ int z_set;
+ int c_set;
+
+ z_set = !!(flags & Z_FLAG);
+ c_set = !!(flags & C_FLAG);
+ T0 = !c_set && !z_set;
+ RETURN();
+
+}
+
+void OPPROTO op_tst_cc_ge (void) {
+ uint32_t flags = env->pregs[SR_CCS];
+ int n_set;
+ int v_set;
+
+ n_set = !!(flags & N_FLAG);
+ v_set = !!(flags & V_FLAG);
+ T0 = (n_set && v_set) || (!n_set && !v_set);
+ RETURN();
+}
+
+void OPPROTO op_tst_cc_ge_fast (void) {
+ T0 = ((int32_t)env->cc_src < (int32_t)env->cc_dest);
+ RETURN();
+}
+
+void OPPROTO op_tst_cc_lt (void) {
+ uint32_t flags = env->pregs[SR_CCS];
+ int n_set;
+ int v_set;
+
+ n_set = !!(flags & N_FLAG);
+ v_set = !!(flags & V_FLAG);
+ T0 = (n_set && !v_set) || (!n_set && v_set);
+ RETURN();
+}
+
+void OPPROTO op_tst_cc_gt (void) {
+ uint32_t flags = env->pregs[SR_CCS];
+ int n_set;
+ int v_set;
+ int z_set;
+
+ n_set = !!(flags & N_FLAG);
+ v_set = !!(flags & V_FLAG);
+ z_set = !!(flags & Z_FLAG);
+ T0 = (n_set && v_set && !z_set)
+ || (!n_set && !v_set && !z_set);
+ RETURN();
+}
+
+void OPPROTO op_tst_cc_le (void) {
+ uint32_t flags = env->pregs[SR_CCS];
+ int n_set;
+ int v_set;
+ int z_set;
+
+ n_set = !!(flags & N_FLAG);
+ v_set = !!(flags & V_FLAG);
+ z_set = !!(flags & Z_FLAG);
+ T0 = z_set || (n_set && !v_set) || (!n_set && v_set);
+ RETURN();
+}
+
+void OPPROTO op_tst_cc_p (void) {
+ uint32_t flags = env->pregs[SR_CCS];
+ int p_set;
+
+ p_set = !!(flags & P_FLAG);
+ T0 = p_set;
+ RETURN();
+}
+
+/* Evaluate the if the branch should be taken or not. Needs to be done in
+ the original sequence. The acutal branch is rescheduled to right after the
+ delay-slot. */
+void OPPROTO op_evaluate_bcc (void)
+{
+ env->btaken = T0;
+ RETURN();
+}
+
+/* this one is used on every alu op, optimize it!. */
+void OPPROTO op_goto_if_not_x (void)
+{
+ if (env->pregs[SR_CCS] & X_FLAG)
+ GOTO_LABEL_PARAM(1);
+ RETURN();
+}
+
+void OPPROTO op_cc_jmp (void)
+{
+ if (env->btaken)
+ env->pc = PARAM1;
+ else
+ env->pc = PARAM2;
+ RETURN();
+}
+
+void OPPROTO op_cc_ngoto (void)
+{
+ if (!env->btaken)
+ GOTO_LABEL_PARAM(1);
+ RETURN();
+}
+
+void OPPROTO op_movl_btarget_T0 (void)
+{
+ env->btarget = T0;
+ RETURN();
+}
+
+void OPPROTO op_jmp (void)
+{
+ env->pc = env->btarget;
+ RETURN();
+}
+
+/* Load and store */
+#define MEMSUFFIX _raw
+#include "op_mem.c"
+#undef MEMSUFFIX
+#if !defined(CONFIG_USER_ONLY)
+#define MEMSUFFIX _user
+#include "op_mem.c"
+#undef MEMSUFFIX
+
+#define MEMSUFFIX _kernel
+#include "op_mem.c"
+#undef MEMSUFFIX
+#endif