diff options
author | Jeff Law <law@redhat.com> | 1998-07-09 16:09:24 +0000 |
---|---|---|
committer | Jeff Law <law@redhat.com> | 1998-07-09 16:09:24 +0000 |
commit | 1f0ba346ebc02d7ba4c42bfb59f9d95fa7bf54be (patch) | |
tree | 8b232d0b53fd42a6307e796a225fa6d1c69e3332 /sim/mn10300/am33.igen | |
parent | 035151d03b78ae98c1e8a06d0d68daadecf3bdc4 (diff) | |
download | gdb-1f0ba346ebc02d7ba4c42bfb59f9d95fa7bf54be.zip gdb-1f0ba346ebc02d7ba4c42bfb59f9d95fa7bf54be.tar.gz gdb-1f0ba346ebc02d7ba4c42bfb59f9d95fa7bf54be.tar.bz2 |
* am33.igen: Add remaining non-DSP instructions.
Lots of work still remains. PSW handing is probably broken badly and the
mul/mac classes of instructions are probably not handled correctly.
Diffstat (limited to 'sim/mn10300/am33.igen')
-rw-r--r-- | sim/mn10300/am33.igen | 706 |
1 files changed, 686 insertions, 20 deletions
diff --git a/sim/mn10300/am33.igen b/sim/mn10300/am33.igen index 2abe4fb..c913e40 100644 --- a/sim/mn10300/am33.igen +++ b/sim/mn10300/am33.igen @@ -1399,7 +1399,102 @@ State.regs[dstreg] = value; } -// ??? mcste +// 1111 1001 1011 1011 Rm Rn; mcste Rm,Rn +8.0xf9+8.0xbb+4.RM2,4.RN0:D1:::mcste +"mcste" +*am33 +{ + int srcreg, dstreg; + + PC = cia; + srcreg = translate_rreg (SD_, RM2); + dstreg = translate_rreg (SD_, RN0); + + PSW &= ~(PSW_V | PSW_C); + PSW |= (State.regs[REG_MCVF] ? PSW_V : 0); + + /* 32bit saturation. */ + if (State.regs[srcreg] == 0x20) + { + long long tmp; + + tmp = State.regs[REG_MCRH]; + tmp <<= 32; + tmp += State.regs[REG_MCRL]; + + if (tmp > 0x7fffffff) + State.regs[dstreg] = 0x7fffffff; + else if (tmp < 0xffffffff80000000LL) + State.regs[dstreg] = 0x80000000; + else + State.regs[dstreg] = tmp; + } + /* 16bit saturation */ + else if (State.regs[srcreg] == 0x10) + { + long long tmp; + + tmp = State.regs[REG_MCRH]; + tmp <<= 32; + tmp += State.regs[REG_MCRL]; + + if (tmp > 0x7fff) + State.regs[dstreg] = 0x7fff; + else if (tmp < 0xffffffffffff8000LL) + State.regs[dstreg] = 0x8000; + else + State.regs[dstreg] = tmp; + } + /* 8 bit saturation */ + else if (State.regs[srcreg] == 0x8) + { + long long tmp; + + tmp = State.regs[REG_MCRH]; + tmp <<= 32; + tmp += State.regs[REG_MCRL]; + + if (tmp > 0x7f) + State.regs[dstreg] = 0x7f; + else if (tmp < 0xffffffffffffff80LL) + State.regs[dstreg] = 0x80; + else + State.regs[dstreg] = tmp; + } + /* 9 bit saturation */ + else if (State.regs[srcreg] == 0x9) + { + long long tmp; + + tmp = State.regs[REG_MCRH]; + tmp <<= 32; + tmp += State.regs[REG_MCRL]; + + if (tmp > 0x80) + State.regs[dstreg] = 0x80; + else if (tmp < 0xffffffffffffff81LL) + State.regs[dstreg] = 0x81; + else + State.regs[dstreg] = tmp; + } + /* 9 bit saturation */ + else if (State.regs[srcreg] == 0x30) + { + long long tmp; + + tmp = State.regs[REG_MCRH]; + tmp <<= 32; + tmp += State.regs[REG_MCRL]; + + if (tmp > 0x7fffffffffffLL) + tmp = 0x7fffffffffffLL; + else if (tmp < 0xffff800000000000LL) + tmp = 0xffff800000000000LL; + + tmp >>= 16; + State.regs[dstreg] = tmp; + } +} // 1111 1001 1100 1011 Rm Rn; swap Rm,Rn 8.0xf9+8.0xcb+4.RM2,4.RN0:D1:::swap @@ -2141,7 +2236,100 @@ State.regs[REG_MCVF] = 1; } -// ??? mcste +// 1111 1011 1011 1011 Rn Rn IMM8; mcste imm8,Rn +8.0xfb+8.0xbb+4.RN2,4.RN0=RN2+8.IMM8:D2:::mcste +"mcste" +{ + int dstreg; + + PC = cia; + dstreg = translate_rreg (SD_, RN0); + + PSW &= ~(PSW_V | PSW_C); + PSW |= (State.regs[REG_MCVF] ? PSW_V : 0); + + /* 32bit saturation. */ + if (IMM8 == 0x20) + { + long long tmp; + + tmp = State.regs[REG_MCRH]; + tmp <<= 32; + tmp += State.regs[REG_MCRL]; + + if (tmp > 0x7fffffff) + State.regs[dstreg] = 0x7fffffff; + else if (tmp < 0xffffffff80000000LL) + State.regs[dstreg] = 0x80000000; + else + State.regs[dstreg] = tmp; + } + /* 16bit saturation */ + else if (IMM8 == 0x10) + { + long long tmp; + + tmp = State.regs[REG_MCRH]; + tmp <<= 32; + tmp += State.regs[REG_MCRL]; + + if (tmp > 0x7fff) + State.regs[dstreg] = 0x7fff; + else if (tmp < 0xffffffffffff8000LL) + State.regs[dstreg] = 0x8000; + else + State.regs[dstreg] = tmp; + } + /* 8 bit saturation */ + else if (IMM8 == 0x8) + { + long long tmp; + + tmp = State.regs[REG_MCRH]; + tmp <<= 32; + tmp += State.regs[REG_MCRL]; + + if (tmp > 0x7f) + State.regs[dstreg] = 0x7f; + else if (tmp < 0xffffffffffffff80LL) + State.regs[dstreg] = 0x80; + else + State.regs[dstreg] = tmp; + } + /* 9 bit saturation */ + else if (IMM8 == 0x9) + { + long long tmp; + + tmp = State.regs[REG_MCRH]; + tmp <<= 32; + tmp += State.regs[REG_MCRL]; + + if (tmp > 0x80) + State.regs[dstreg] = 0x80; + else if (tmp < 0xffffffffffffff81LL) + State.regs[dstreg] = 0x81; + else + State.regs[dstreg] = tmp; + } + /* 9 bit saturation */ + else if (IMM8 == 0x30) + { + long long tmp; + + tmp = State.regs[REG_MCRH]; + tmp <<= 32; + tmp += State.regs[REG_MCRL]; + + if (tmp > 0x7fffffffffffLL) + tmp = 0x7fffffffffffLL; + else if (tmp < 0xffff800000000000LL) + tmp = 0xffff800000000000LL; + + tmp >>= 16; + State.regs[dstreg] = tmp; + } +} // 1111 1011 0111 1100 Rm Rn Rd; add Rm,Rn,Rd 8.0xfb+8.0x7c+4.RM2,4.RN0+4.RD0,4.0x0:D2c:::add @@ -2596,16 +2784,261 @@ store_half (State.regs[dstreg1] + State.regs[dstreg2], State.regs[srcreg]); } -// ??? mac -// ??? macu -// ??? macb -// ??? macbu -// ??? mach -// ??? machu -// ??? dmach -// ??? dmachu -// ??? dmulh -// ??? dmulhu +// 1111 1011 0000 1111 Rm Rn Rd1 Rd2; mac Rm,Rn,Rd1,Rd2 +8.0xfb+8.0x0f+4.RM2,4.RN0+4.RD0,4.RD2:D2c:::mac +"mac" +*am33 +{ + int srcreg1, srcreg2, dstreg1, dstreg2; + signed long long temp; + unsigned long sum; + int c, v; + + PC = cia; + srcreg1 = translate_rreg (SD_, RM2); + srcreg2 = translate_rreg (SD_, RN0); + dstreg1 = translate_rreg (SD_, RD0); + dstreg2 = translate_rreg (SD_, RD2); + + temp = ((signed64)(signed32)State.regs[srcreg1] + * (signed64)(signed32)State.regs[srcreg2]); + + sum = State.regs[dstreg2] + (temp & 0xffffffff); + c = (sum < State.regs[dstreg2]) || (sum < (temp & 0xffffffff)); + State.regs[dstreg2] = sum; + temp >>= 32; + temp &= 0xffffffff; + sum = State.regs[dstreg1] + temp + c; + v = ((State.regs[dstreg1] & 0x80000000) == (temp & 0x80000000) + && (temp & 0x80000000) != (sum & 0x80000000)); + State.regs[dstreg1] = sum; + if (v) + State.regs[REG_MCVF] = 1; +} + +// 1111 1011 0001 1111 Rm Rn Rd1 Rd2; macu Rm,Rn,Rd1,Rd2 +8.0xfb+8.0x1f+4.RM2,4.RN0+4.RD0,4.RD2:D2c:::macu +"macu" +*am33 +{ + int srcreg1, srcreg2, dstreg1, dstreg2; + signed long long temp; + unsigned long sum; + int c, v; + + PC = cia; + srcreg1 = translate_rreg (SD_, RM2); + srcreg2 = translate_rreg (SD_, RN0); + dstreg1 = translate_rreg (SD_, RD0); + dstreg2 = translate_rreg (SD_, RD2); + + temp = ((unsigned64)State.regs[srcreg1] + * (unsigned64)State.regs[srcreg2]); + + sum = State.regs[dstreg2] + (temp & 0xffffffff); + c = (sum < State.regs[dstreg2]) || (sum < (temp & 0xffffffff)); + State.regs[dstreg2] = sum; + temp >>= 32; + temp &= 0xffffffff; + sum = State.regs[dstreg1] + temp + c; + v = ((State.regs[dstreg1] & 0x80000000) == (temp & 0x80000000) + && (temp & 0x80000000) != (sum & 0x80000000)); + State.regs[dstreg1] = sum; + if (v) + State.regs[REG_MCVF] = 1; +} + +// 1111 1011 0010 1111 Rm Rn Rd1; macb Rm,Rn,Rd1 +8.0xfb+8.0x2f+4.RM2,4.RN0+4.RD0,4.0x0:D2c:::macb +"macb" +*am33 +{ + int srcreg1, srcreg2, dstreg; + long temp, sum; + int v; + + PC = cia; + srcreg1 = translate_rreg (SD_, RM2); + srcreg2 = translate_rreg (SD_, RN0); + dstreg = translate_rreg (SD_, RD0); + + temp = ((signed32)(State.regs[srcreg2] & 0xff) + * (signed32)(State.regs[srcreg1] & 0xff)); + sum = State.regs[dstreg] + temp; + v = ((State.regs[dstreg] & 0x80000000) == (temp & 0x80000000) + && (temp & 0x80000000) != (sum & 0x80000000)); + State.regs[dstreg] = sum; + if (v) + State.regs[REG_MCVF] = 1; +} + +// 1111 1011 0011 1111 Rm Rn Rd1; macbu Rm,Rn,Rd1 +8.0xfb+8.0x3f+4.RM2,4.RN0+4.RD0,4.0x0:D2c:::macbu +"macbu" +*am33 +{ + int srcreg1, srcreg2, dstreg; + long temp, sum; + int v; + + PC = cia; + srcreg1 = translate_rreg (SD_, RM2); + srcreg2 = translate_rreg (SD_, RN0); + dstreg = translate_rreg (SD_, RD0); + + temp = ((unsigned32)(State.regs[srcreg2] & 0xff) + * (unsigned32)(State.regs[srcreg1] & 0xff)); + sum = State.regs[dstreg] + temp; + v = ((State.regs[dstreg] & 0x80000000) == (temp & 0x80000000) + && (temp & 0x80000000) != (sum & 0x80000000)); + State.regs[dstreg] = sum; + if (v) + State.regs[REG_MCVF] = 1; +} + +// 1111 1011 0100 1111 Rm Rn Rd1; mach Rm,Rn,Rd1 +8.0xfb+8.0x4f+4.RM2,4.RN0+4.RD0,4.0x0:D2c:::mach +"mach" +*am33 +{ + int srcreg1, srcreg2, dstreg; + long temp, sum; + int v; + + PC = cia; + srcreg1 = translate_rreg (SD_, RM2); + srcreg2 = translate_rreg (SD_, RN0); + dstreg = translate_rreg (SD_, RD0); + + temp = ((signed32)(State.regs[srcreg2] & 0xffff) + * (signed32)(State.regs[srcreg1] & 0xffff)); + sum = State.regs[dstreg] + temp; + v = ((State.regs[dstreg] & 0x80000000) == (temp & 0x80000000) + && (temp & 0x80000000) != (sum & 0x80000000)); + State.regs[dstreg] = sum; + if (v) + State.regs[REG_MCVF] = 1; +} + +// 1111 1011 0101 1111 Rm Rn Rd1; machu Rm,Rn,Rd1 +8.0xfb+8.0x5f+4.RM2,4.RN0+4.RD0,4.0x0:D2c:::machu +"machu" +*am33 +{ + int srcreg1, srcreg2, dstreg; + long temp, sum; + int v; + + PC = cia; + srcreg1 = translate_rreg (SD_, RM2); + srcreg2 = translate_rreg (SD_, RN0); + dstreg = translate_rreg (SD_, RD0); + + temp = ((unsigned32)(State.regs[srcreg2] & 0xffff) + * (unsigned32)(State.regs[srcreg1] & 0xffff)); + sum = State.regs[dstreg] + temp; + v = ((State.regs[dstreg] & 0x80000000) == (temp & 0x80000000) + && (temp & 0x80000000) != (sum & 0x80000000)); + State.regs[dstreg] = sum; + if (v) + State.regs[REG_MCVF] = 1; +} + +// 1111 1011 0110 1111 Rm Rn Rd1; dmach Rm,Rn,Rd1 +8.0xfb+8.0x6f+4.RM2,4.RN0+4.RD0,4.0x0:D2c:::dmach +"dmach" +*am33 +{ + int srcreg1, srcreg2, dstreg; + long temp, temp2, sum; + int v; + + PC = cia; + srcreg1 = translate_rreg (SD_, RM2); + srcreg2 = translate_rreg (SD_, RN0); + dstreg = translate_rreg (SD_, RD0); + + temp = ((signed32)(State.regs[srcreg2] & 0xffff) + * (signed32)(State.regs[srcreg1] & 0xffff)); + temp2 = ((signed32)((State.regs[srcreg1] >> 16) & 0xffff) + * (signed32)((State.regs[srcreg2] >> 16) & 0xffff)); + sum = temp + temp2 + State.regs[dstreg]; + v = ((State.regs[dstreg] & 0x80000000) == (temp & 0x80000000) + && (temp & 0x80000000) != (sum & 0x80000000)); + State.regs[dstreg] = sum; + if (v) + State.regs[REG_MCVF] = 1; +} + +// 1111 1011 0111 1111 Rm Rn Rd1; dmachu Rm,Rn,Rd1 +8.0xfb+8.0x7f+4.RM2,4.RN0+4.RD0,4.0x0:D2c:::dmachu +"dmachu" +*am33 +{ + int srcreg1, srcreg2, dstreg; + long temp, temp2, sum; + int v; + + PC = cia; + srcreg1 = translate_rreg (SD_, RM2); + srcreg2 = translate_rreg (SD_, RN0); + dstreg = translate_rreg (SD_, RD0); + + temp = ((unsigned32)(State.regs[srcreg2] & 0xffff) + * (unsigned32)(State.regs[srcreg1] & 0xffff)); + temp2 = ((unsigned32)((State.regs[srcreg1] >> 16) & 0xffff) + * (unsigned32)((State.regs[srcreg2] >> 16) & 0xffff)); + sum = temp + temp2 + State.regs[dstreg]; + v = ((State.regs[dstreg] & 0x80000000) == (temp & 0x80000000) + && (temp & 0x80000000) != (sum & 0x80000000)); + State.regs[dstreg] = sum; + if (v) + State.regs[REG_MCVF] = 1; +} + +// 1111 1011 1000 1111 Rm Rn Rd1 Rd2; dmulh Rm,Rn,Rd1,Rd2 +8.0xfb+8.0x8f+4.RM2,4.RN0+4.RD0,4.RD2:D2c:::dmulh +"dmulh" +*am33 +{ + int srcreg1, srcreg2, dstreg1, dstreg2; + signed long long temp; + + PC = cia; + srcreg1 = translate_rreg (SD_, RM2); + srcreg2 = translate_rreg (SD_, RN0); + dstreg1 = translate_rreg (SD_, RD0); + dstreg2 = translate_rreg (SD_, RD2); + + temp = ((signed32)(State.regs[srcreg1] & 0xffff) + * (signed32)(State.regs[srcreg1] & 0xffff)); + State.regs[dstreg2] = temp; + temp = ((signed32)((State.regs[srcreg1] >> 16) & 0xffff) + * (signed32)((State.regs[srcreg1] >>16) & 0xffff)); + State.regs[dstreg1] = temp; +} + +// 1111 1011 1001 1111 Rm Rn Rd1 Rd2; dmulhu Rm,Rn,Rd1,Rd2 +8.0xfb+8.0x9f+4.RM2,4.RN0+4.RD0,4.RD2:D2c:::dmulhu +"dmulhu" +*am33 +{ + int srcreg1, srcreg2, dstreg1, dstreg2; + signed long long temp; + + PC = cia; + srcreg1 = translate_rreg (SD_, RM2); + srcreg2 = translate_rreg (SD_, RN0); + dstreg1 = translate_rreg (SD_, RD0); + dstreg2 = translate_rreg (SD_, RD2); + + temp = ((unsigned32)(State.regs[srcreg1] & 0xffff) + * (unsigned32)(State.regs[srcreg1] & 0xffff)); + State.regs[dstreg2] = temp; + temp = ((unsigned32)((State.regs[srcreg1] >> 16) & 0xffff) + * (unsigned32)((State.regs[srcreg1] >>16) & 0xffff)); + State.regs[dstreg1] = temp; +} // 1111 1011 1010 1111 Rm Rn; sat24 Rm,Rn 8.0xfb+8.0xaf+4.RM2,4.RN0+8.0x0:D2:::sat24 @@ -2629,7 +3062,43 @@ State.regs[dstreg] = value; } -// ??? bsch +// 1111 1011 1111 1111 Rm Rn Rd1; bsch Rm,Rn,Rd1 +8.0xfb+8.0xff+4.RM2,4.RN0+4.RD0,4.0x0:D2c:::bsch +"bsch" +*am33 +{ + int temp, c, i; + int srcreg1, srcreg2, dstreg; + int start; + + PC = cia; + srcreg1 = translate_rreg (SD_, RM2); + srcreg2 = translate_rreg (SD_, RN0); + dstreg = translate_rreg (SD_, RD0); + + temp = State.regs[srcreg1]; + start = (State.regs[srcreg2] & 0x1f) - 1; + if (start == -1) + start = 31; + + for (i = start; i >= 0; i--) + { + if (temp & (1 << i)) + { + c = 1; + State.regs[dstreg] = i; + break; + } + } + + if (i < 0) + { + c = 0; + State.regs[dstreg] = 0; + } + PSW &= ~(PSW_C); + PSW |= (c ? PSW_C : 0); +} // 1111 1101 0000 1000 Rn Rn IMM32; mov imm24,Rn 8.0xfd+8.0x08+4.RM2,4.RN0=RM2+8.IMM24A+8.IMM24B+8.IMM24C:D4t:::mov @@ -2874,8 +3343,49 @@ PSW |= ((z ? PSW_Z : 0) | (n ? PSW_N : 0)); } -// ??? mul -// ??? mulu +// 1111 1101 1010 1001 Rn Rn IMM24; mul imm24,Rn +8.0xfd+8.0xa9+4.RM2,4.RN0=RM2+8.IMM24A+8.IMM24B+8.IMM24C:D4b:::mul +"mul" +*am33 +{ + int dstreg; + unsigned long long temp; + int z, n; + + PC = cia; + dstreg = translate_rreg (SD_, RN0); + + temp = ((signed64)(signed32)State.regs[dstreg] + * (signed64)(signed32)EXTEND8 (FETCH24 (IMM24A, IMM24B, IMM24C))); + State.regs[dstreg] = temp & 0xffffffff; + State.regs[REG_MDR] = (temp & 0xffffffff00000000LL) >> 32;; + z = (State.regs[dstreg] == 0); + n = (State.regs[dstreg] & 0x80000000) != 0; + PSW &= ~(PSW_Z | PSW_N | PSW_C | PSW_V); + PSW |= ((z ? PSW_Z : 0) | (n ? PSW_N : 0)); +} + +// 1111 1101 1011 1001 Rn Rn IMM24; mulu imm24,Rn +8.0xfd+8.0xb9+4.RM2,4.RN0=RM2+8.IMM24A+8.IMM24B+8.IMM24C:D4b:::mulu +"mulu" +*am33 +{ + int dstreg; + unsigned long long temp; + int z, n; + + PC = cia; + dstreg = translate_rreg (SD_, RN0); + + temp = ((unsigned64)State.regs[dstreg] + * (unsigned64)EXTEND8 (FETCH24 (IMM24A, IMM24B, IMM24C))); + State.regs[dstreg] = temp & 0xffffffff; + State.regs[REG_MDR] = (temp & 0xffffffff00000000LL) >> 32;; + z = (State.regs[dstreg] == 0); + n = (State.regs[dstreg] & 0x80000000) != 0; + PSW &= ~(PSW_Z | PSW_N | PSW_C | PSW_V); + PSW |= ((z ? PSW_Z : 0) | (n ? PSW_N : 0)); +} // 1111 1101 1110 1001 Rn Rn IMM24; btst imm24,,Rn 8.0xfd+8.0xe9+4.RN2,4.RN0=RN2+8.IMM24A+8.IMM24B+8.IMM24C:D4p:::btst @@ -3112,11 +3622,167 @@ State.regs[srcreg] += 2; } -// ??? mac -// ??? macb -// ??? macbu -// ??? mach -// ??? machu +// 1111 1101 0000 1011 Rn IMM24; mac imm24,Rn +8.0xfd+8.0x0b+4.RN2,4.RN0=RN2+8.IMM24A+8.IMM24B+8.IMM24C:D4z:::mac +"mac" +*am33 +{ + int srcreg; + long long temp, sum; + int c, v; + + PC = cia; + srcreg = translate_rreg (SD_, RN2); + + temp = ((signed64)EXTEND8 (FETCH24 (IMM24A, IMM24B, IMM24C)) + * (signed64)State.regs[srcreg]); + sum = State.regs[REG_MCRL] + (temp & 0xffffffff); + c = (sum < State.regs[REG_MCRL]) || (sum < (temp & 0xffffffff)); + State.regs[REG_MCRL] = sum; + temp >>= 32; + temp &= 0xffffffff; + sum = State.regs[REG_MCRH] + temp + c; + v = ((State.regs[REG_MCRH] & 0x80000000) == (temp & 0x80000000) + && (temp & 0x80000000) != (sum & 0x80000000)); + State.regs[REG_MCRH] = sum; + if (v) + State.regs[REG_MCVF] = 1; +} + +// 1111 1101 0001 1011 Rn IMM24; macu imm24,Rn +8.0xfd+8.0x1b+4.RN2,4.RN0=RN2+8.IMM24A+8.IMM24B+8.IMM24C:D4z:::macu +"macu" +*am33 +{ + int srcreg; + long long temp, sum; + int c, v; + + PC = cia; + srcreg = translate_rreg (SD_, RN2); + + temp = ((unsigned64) (FETCH24 (IMM24A, IMM24B, IMM24C)) + * (unsigned64)State.regs[srcreg]); + sum = State.regs[REG_MCRL] + (temp & 0xffffffff); + c = (sum < State.regs[REG_MCRL]) || (sum < (temp & 0xffffffff)); + State.regs[REG_MCRL] = sum; + temp >>= 32; + temp &= 0xffffffff; + sum = State.regs[REG_MCRH] + temp + c; + v = ((State.regs[REG_MCRH] & 0x80000000) == (temp & 0x80000000) + && (temp & 0x80000000) != (sum & 0x80000000)); + State.regs[REG_MCRH] = sum; + if (v) + State.regs[REG_MCVF] = 1; +} + +// 1111 1101 0010 1011 Rn IMM24; macb imm24,Rn +8.0xfd+8.0x2b+4.RN2,4.RN0=RN2+8.IMM24A+8.IMM24B+8.IMM24C:D4z:::macb +"macb" +*am33 +{ + int srcreg; + long long temp, sum; + int c, v; + + PC = cia; + srcreg = translate_rreg (SD_, RN2); + + temp = ((signed64)EXTEND8 (FETCH24 (IMM24A, IMM24B, IMM24C)) + * (signed64)State.regs[srcreg] & 0xff); + sum = State.regs[REG_MCRL] + (temp & 0xffffffff); + c = (sum < State.regs[REG_MCRL]) || (sum < (temp & 0xffffffff)); + State.regs[REG_MCRL] = sum; + temp >>= 32; + temp &= 0xffffffff; + sum = State.regs[REG_MCRH] + temp + c; + v = ((State.regs[REG_MCRH] & 0x80000000) == (temp & 0x80000000) + && (temp & 0x80000000) != (sum & 0x80000000)); + State.regs[REG_MCRH] = sum; + if (v) + State.regs[REG_MCVF] = 1; +} + +// 1111 1101 0011 1011 Rn IMM24; macbu imm24,Rn +8.0xfd+8.0x3b+4.RN2,4.RN0=RN2+8.IMM24A+8.IMM24B+8.IMM24C:D4z:::macbu +"macbu" +*am33 +{ + int srcreg; + long long temp, sum; + int c, v; + + PC = cia; + srcreg = translate_rreg (SD_, RN2); + + temp = ((unsigned64) (FETCH24 (IMM24A, IMM24B, IMM24C)) + * (unsigned64)State.regs[srcreg] & 0xff); + sum = State.regs[REG_MCRL] + (temp & 0xffffffff); + c = (sum < State.regs[REG_MCRL]) || (sum < (temp & 0xffffffff)); + State.regs[REG_MCRL] = sum; + temp >>= 32; + temp &= 0xffffffff; + sum = State.regs[REG_MCRH] + temp + c; + v = ((State.regs[REG_MCRH] & 0x80000000) == (temp & 0x80000000) + && (temp & 0x80000000) != (sum & 0x80000000)); + State.regs[REG_MCRH] = sum; + if (v) + State.regs[REG_MCVF] = 1; +} + +// 1111 1101 0100 1011 Rn IMM24; mach imm24,Rn +8.0xfd+8.0x4b+4.RN2,4.RN0=RN2+8.IMM24A+8.IMM24B+8.IMM24C:D4z:::mach +"mach" +*am33 +{ + int srcreg; + long long temp, sum; + int c, v; + + PC = cia; + srcreg = translate_rreg (SD_, RN2); + + temp = ((signed64)EXTEND16 (FETCH24 (IMM24A, IMM24B, IMM24C)) + * (signed64)State.regs[srcreg] & 0xffff); + sum = State.regs[REG_MCRL] + (temp & 0xffffffff); + c = (sum < State.regs[REG_MCRL]) || (sum < (temp & 0xffffffff)); + State.regs[REG_MCRL] = sum; + temp >>= 32; + temp &= 0xffffffff; + sum = State.regs[REG_MCRH] + temp + c; + v = ((State.regs[REG_MCRH] & 0x80000000) == (temp & 0x80000000) + && (temp & 0x80000000) != (sum & 0x80000000)); + State.regs[REG_MCRH] = sum; + if (v) + State.regs[REG_MCVF] = 1; +} + +// 1111 1101 0101 1011 Rn IMM24; machu imm24,Rn +8.0xfd+8.0x5b+4.RN2,4.RN0=RN2+8.IMM24A+8.IMM24B+8.IMM24C:D4z:::machu +"machu" +*am33 +{ + int srcreg; + long long temp, sum; + int c, v; + + PC = cia; + srcreg = translate_rreg (SD_, RN2); + + temp = ((unsigned64) (FETCH24 (IMM24A, IMM24B, IMM24C) & 0xffff) + * (unsigned64)State.regs[srcreg] & 0xffff); + sum = State.regs[REG_MCRL] + (temp & 0xffffffff); + c = (sum < State.regs[REG_MCRL]) || (sum < (temp & 0xffffffff)); + State.regs[REG_MCRL] = sum; + temp >>= 32; + temp &= 0xffffffff; + sum = State.regs[REG_MCRH] + temp + c; + v = ((State.regs[REG_MCRH] & 0x80000000) == (temp & 0x80000000) + && (temp & 0x80000000) != (sum & 0x80000000)); + State.regs[REG_MCRH] = sum; + if (v) + State.regs[REG_MCVF] = 1; +} // 1111 1101 0000 1110 Rn 0000 ABS24; mov (abs24),Rn 8.0xfd+8.0x0e+4.RN2,4.0x0+8.IMM24A+8.IMM24B+8.IMM24C:D4u:::mov |