diff options
Diffstat (limited to 'gitlab/issues_text/target_m68k/host_missing/accel_TCG/754')
| -rw-r--r-- | gitlab/issues_text/target_m68k/host_missing/accel_TCG/754 | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/gitlab/issues_text/target_m68k/host_missing/accel_TCG/754 b/gitlab/issues_text/target_m68k/host_missing/accel_TCG/754 deleted file mode 100644 index d93ba56b5..000000000 --- a/gitlab/issues_text/target_m68k/host_missing/accel_TCG/754 +++ /dev/null @@ -1,207 +0,0 @@ -qem_m68k : trapcs instruction causes the non-execution of the following 2 instructions -Description of problem: -In try to run following code : -``` -8004615a: 204f moveal %sp,%a0 -8004615c: b1c7 cmpal %d7,%a0 -8004615e: 55fc trapcs -80046160: 4e56 0000 linkw %fp,#0 -80046164: 2f14 movel %a4@,%sp@- -80046166: 288e movel %fp,%a4@ -80046168: c74d exg %a3,%a5 -8004616a: 48e7 3030 moveml %d2-%d3/%a2-%a3,%sp@- -8004616e: 7001 moveq #1,%d0 -80046170: 3b40 816c movew %d0,%a5@(-32404) -80046174: 7218 moveq #24,%d1 -80046176: 3b41 816a movew %d1,%a5@(-32406) -8004617a: 242d 8004 movel %a5@(-32764),%d2 -8004617e: 2b42 815c movel %d2,%a5@(-32420) -80046182: 206d 8008 moveal %a5@(-32760),%a0 -80046186: 2268 8010 moveal %a0@(-32752),%a1 -8004618a: 2b49 8158 movel %a1,%a5@(-32424) -8004618e: 42ad 8154 clrl %a5@(-32428) -80046192: 246d 8154 moveal %a5@(-32428),%a2 -80046196: 2b4a 8160 movel %a2,%a5@(-32416) -8004619a: 2b4a 8164 movel %a2,%a5@(-32412) -8004619e: 422d 8168 clrb %a5@(-32408) -800461a2: 7604 moveq #4,%d3 -800461a4: 2b43 8150 movel %d3,%a5@(-32432) -800461a8: 2668 8010 moveal %a0@(-32752),%a3 -800461ac: 2b4b 814c movel %a3,%a5@(-32436) -800461b0: 2268 8010 moveal %a0@(-32752),%a1 -800461b4: 266d 8008 moveal %a5@(-32760),%a3 -800461b8: 206b 8008 moveal %a3@(-32760),%a0 -800461bc: 4e90 jsr %a0@ -800461be: 2b48 8148 movel %a0,%a5@(-32440) -800461c2: 4cdf 0c0c moveml %sp@+,%d2-%d3/%a2-%a3 -800461c6: c74d exg %a3,%a5 -800461c8: 289f movel %sp@+,%a4@ -800461ca: 4e5e unlk %fp -800461cc: 4e75 rts -``` -When I run qemu-m68k -cpu m68020 -d in_asm,cpu, I have : -``` ----------------- -IN: -0x8004615a: moveal %sp,%a0 -0x8004615c: cmpal %d7,%a0 -0x8004615e: trapcs -0x80046160: linkw %fp,#0 -0x80046164: movel %a4@,%sp@- -0x80046166: movel %fp,%a4@ -0x80046168: exg %a3,%a5 -0x8004616a: moveml %d2-%d3/%a2-%a3,%sp@- -0x8004616e: moveq #1,%d0 -0x80046170: movew %d0,%a5@(-32404) -0x80046174: moveq #24,%d1 -0x80046176: movew %d1,%a5@(-32406) -0x8004617a: movel %a5@(-32764),%d2 -0x8004617e: movel %d2,%a5@(-32420) -0x80046182: moveal %a5@(-32760),%a0 -0x80046186: moveal %a0@(-32752),%a1 -0x8004618a: movel %a1,%a5@(-32424) -0x8004618e: clrl %a5@(-32428) -0x80046192: moveal %a5@(-32428),%a2 -0x80046196: movel %a2,%a5@(-32416) -0x8004619a: movel %a2,%a5@(-32412) -0x8004619e: clrb %a5@(-32408) -0x800461a2: moveq #4,%d3 -0x800461a4: movel %d3,%a5@(-32432) -0x800461a8: moveal %a0@(-32752),%a3 -0x800461ac: movel %a3,%a5@(-32436) -0x800461b0: moveal %a0@(-32752),%a1 -0x800461b4: moveal %a5@(-32760),%a3 -0x800461b8: moveal %a3@(-32760),%a0 -0x800461bc: jsr %a0@ - -Trace 0: 0x7f83a807e780 [00000000/8004615a/00000000/00000000] -D0 = 00000012 A0 = 8004615a F0 = 7fff ffffffffffffffff ( nan) -D1 = 00000001 A1 = 800466d6 F1 = 7fff ffffffffffffffff ( nan) -D2 = 00000000 A2 = 00000000 F2 = 7fff ffffffffffffffff ( nan) -D3 = 00000000 A3 = 8000c3b0 F3 = 7fff ffffffffffffffff ( nan) -D4 = 00000000 A4 = 8004604c F4 = 7fff ffffffffffffffff ( nan) -D5 = 00000000 A5 = 3ffd7000 F5 = 7fff ffffffffffffffff ( nan) -D6 = 00000004 A6 = 80046038 F6 = 7fff ffffffffffffffff ( nan) -D7 = 80042050 A7 = 80045ff4 F7 = 7fff ffffffffffffffff ( nan) -PC SR = 0004 T:0 I:0 UI --Z-- -FPSR = 00000000 ---- - FPCR = 0000 X RN - - ----------------- -IN: -0x80046358: lea %a1@(0,%d0:l),%a0 -0x8004635c: rts - -Trace 0: 0x7f83a807eac0 [00000000/80046358/00000000/00000000] -D0 = 00000001 A0 = 80046358 F0 = 7fff ffffffffffffffff ( nan) -D1 = 00000018 A1 = 00000000 F1 = 7fff ffffffffffffffff ( nan) -D2 = ffffffff A2 = 00000000 F2 = 7fff ffffffffffffffff ( nan) -D3 = 00000004 A3 = 8000c040 F3 = 7fff ffffffffffffffff ( nan) -D4 = 00000000 A4 = 8004604c F4 = 7fff ffffffffffffffff ( nan) -D5 = 00000000 A5 = 8000c3b0 F5 = 7fff ffffffffffffffff ( nan) -D6 = 00000004 A6 = 80046038 F6 = 7fff ffffffffffffffff ( nan) -D7 = 80042050 A7 = 80045fe0 F7 = 7fff ffffffffffffffff ( nan) -PC = 80046358 SR = 0004 T:0 I:0 UI --Z-- -FPSR = 00000000 ---- - FPCR = 0000 X RN ----------------- -``` -Stack pointer is 80045fe0, it should be 80045FD8. - -When I run with options -cpu m68020 -d in_asm,cpu,op -singlestep, I have : -``` ----------------- -IN: -0x8004615e: trapcs -0x80046160: linkw %fp,#0 -Disassembler disagrees with translator over instruction decoding -Please report this to qemu-devel@nongnu.org - -OP: - ld_i32 tmp0,env,$0xfffffffffffffff8 - brcond_i32 tmp0,$0x0,lt,$L0 - - ---- 8004615e 00000000 - mov_i32 tmp0,$0x0 - call flush_flags,$0x0,$0,env,CC_OP - setcond_i32 tmp2,CC_C,tmp0,ne - neg_i32 tmp2,tmp2 - mov_i32 tmp0,$0x56 - mov_i32 PC,$0x80046162 - exit_tb $0x0 - set_label $L0 - exit_tb $0x7fba001a75c3 - -D0 = 00000012 A0 = 80045ff4 F0 = 7fff ffffffffffffffff ( nan) -D1 = 00000001 A1 = 800466d6 F1 = 7fff ffffffffffffffff ( nan) -D2 = 00000000 A2 = 00000000 F2 = 7fff ffffffffffffffff ( nan) -D3 = 00000000 A3 = 8000c3b0 F3 = 7fff ffffffffffffffff ( nan) -D4 = 00000000 A4 = 8004604c F4 = 7fff ffffffffffffffff ( nan) -D5 = 00000000 A5 = 3ffd5000 F5 = 7fff ffffffffffffffff ( nan) -D6 = 00000004 A6 = 80046038 F6 = 7fff ffffffffffffffff ( nan) -D7 = 80042050 A7 = 80045ff4 F7 = 7fff ffffffffffffffff ( nan) -PC = 8004615e SR = 0000 T:0 I:0 UI ----- -FPSR = 00000000 ---- - FPCR = 0000 X RN ----------------- -IN: -0x80046162: orib #20,%d0 - -OP: - ld_i32 tmp0,env,$0xfffffffffffffff8 - brcond_i32 tmp0,$0x0,lt,$L0 - - ---- 80046162 00000000 - mov_i32 tmp0,$0x14 - ext8s_i32 tmp3,D0 - or_i32 tmp4,tmp3,tmp0 - and_i32 D0,D0,$0xffffff00 - ext8u_i32 tmp6,tmp4 - or_i32 D0,D0,tmp6 - ext8s_i32 CC_N,tmp4 - discard CC_C - discard CC_Z - discard CC_V - mov_i32 CC_OP,$0xb - mov_i32 PC,$0x80046166 - exit_tb $0x0 - set_label $L0 - exit_tb $0x7fba001a7683 - -D0 = 00000012 A0 = 80045ff4 F0 = 7fff ffffffffffffffff ( nan) -D1 = 00000001 A1 = 800466d6 F1 = 7fff ffffffffffffffff ( nan) -D2 = 00000000 A2 = 00000000 F2 = 7fff ffffffffffffffff ( nan) -D3 = 00000000 A3 = 8000c3b0 F3 = 7fff ffffffffffffffff ( nan) -D4 = 00000000 A4 = 8004604c F4 = 7fff ffffffffffffffff ( nan) -D5 = 00000000 A5 = 3ffd5000 F5 = 7fff ffffffffffffffff ( nan) -D6 = 00000004 A6 = 80046038 F6 = 7fff ffffffffffffffff ( nan) -D7 = 80042050 A7 = 80045ff4 F7 = 7fff ffffffffffffffff ( nan) -PC = 80046162 SR = 0000 T:0 I:0 UI ----- -FPSR = 00000000 ---- - FPCR = 0000 X RN ----------------- -IN: -0x80046166: movel %fp,%a4@ - -OP: - ld_i32 tmp0,env,$0xfffffffffffffff8 - brcond_i32 tmp0,$0x0,lt,$L0 - -... -``` -I can see that instructions -``` -0x80046160: linkw %fp,#0 -0x80046164: movel %a4@,%sp@- -``` -are not executed -and an extra instruction -``` -0x80046162: orib #20,%d0 -``` -is executed -Steps to reproduce: -Run chroot qemu-m68k qemu-m68k-static -cpu m68020 -d in_asm,cpu -D log1.txt ./test -Additional information: - |