Wed May 24 14:07:11 1995 Steve Chamberlain <sac@slash.cygnus.com>

	* gencode.c (tab): Add bsrf and braf.

1 files changed, 11 insertions, 15 deletions

diff --git a/sim/sh/gencode.c b/sim/sh/gencode.c
index e171848..476acc1 100644
--- a/sim/sh/gencode.c
+++ b/sim/sh/gencode.c
@@ -49,13 +49,10 @@ op tab[] =
 
   {"n","","add #<imm>,<REG_N>", "0111nnnni8*1....", "R[n] += SEXT(i);if (i == 0) { UNDEF(n); break; } "},
   {"n","mn","add <REG_M>,<REG_N>", "0011nnnnmmmm1100", "R[n] += R[m];"},
-  {"n","mn","addc <REG_M>,<REG_N>", "0011nnnnmmmm1110", "ult=R[n]+T;T=ult<T;ult=ult+R[m];T=T|(ult<R[m]);R[n]=ult;"},
+  {"n","mn","addc <REG_M>,<REG_N>", "0011nnnnmmmm1110",
+     "ult=R[n]+T;T=ult<R[n];R[n]=ult+R[m];T|=R[n]<ult;"},
   {"n","mn","addv <REG_M>,<REG_N>", "0011nnnnmmmm1111",
-   "{long ans;",
-  " ans = R[n] + R[m];",
-   "T = ((~R[n] & R[m] & ans) | (R[n] & R[m] & ~ans)) >>31;",
-   "R[n] = ans;}"},
-
+     "ult = R[n] + R[m]; T = ((~(R[n] ^ R[m]) & (ult ^ R[n])) >> 31); R[n] = ult;"},
   {"0","","and #<imm>,R0", "11001001i8*1....", ";R0&=i;"},
   {"n","nm","and <REG_M>,<REG_N>", "0010nnnnmmmm1001", " R[n]&=R[m];"},
   {"","0","and.b #<imm>,@(R0,GBR)", "11001101i8*1....", ";WBAT(GBR+R0, RBAT(GBR+R0) & i);"},
@@ -99,7 +96,7 @@ op tab[] =
   {"","n","lds.l @<REG_N>+,MACH", "0100nnnn00000110", "MACH = SEXT(RLAT(R[n]));R[n]+=4;"},
   {"","n","lds.l @<REG_N>+,MACL", "0100nnnn00010110", "MACL = RLAT(R[n]);R[n]+=4;"},
   {"","n","lds.l @<REG_N>+,PR", "0100nnnn00100110", "PR = RLAT(R[n]);R[n]+=4;;"},
-  {"","n","mac.w @<REG_M>+,@<REG_N>+", "0100nnnnmmmm1111", "abort();"},
+  {"","n","mac.w @<REG_M>+,@<REG_N>+", "0100nnnnmmmm1111", "macw(R0,memory,n,m);"},
   {"n","","mov #<imm>,<REG_N>", "1110nnnni8*1....", "R[n] = SEXT(i);"},
   {"n","m","mov <REG_M>,<REG_N>", "0110nnnnmmmm0011", "R[n] = R[m];"},
   {"","mn0","mov.b <REG_M>,@(R0,<REG_N>)", "0000nnnnmmmm0100", "WBAT(R[n]+R0, R[m]);"},
@@ -140,8 +137,7 @@ op tab[] =
   {"","mn","mul.l <REG_M>,<REG_N>","0000nnnnmmmm0111","MACL=((int)R[n])*((int)R[m]);"},
   {"","mn","mulu <REG_M>,<REG_N>", "0010nnnnmmmm1110","MACL=((unsigned int)(unsigned short)R[n])*((unsigned int)(unsigned short)R[m]);"},
   {"n","m","neg <REG_M>,<REG_N>", "0110nnnnmmmm1011", "R[n] = - R[m];"},
-  {"n","m","negc <REG_M>,<REG_N>", "0110nnnnmmmm1010",
-   "ult=R[m]; R[n]=0-R[m]-T;T=SBIT(R[n])!=SBIT(ult); "},
+  {"n","m","negc <REG_M>,<REG_N>", "0110nnnnmmmm1010", "ult=-T;T=ult>0;R[n]=ult-R[m];T|=R[n]>ult;"},
   {"","","nop", "0000000000001001", ""},
   {"n","m","not <REG_M>,<REG_N>", "0110nnnnmmmm0111", "R[n]=~R[m];"},
   {"0","","or #<imm>,R0", "11001011i8*1....", "R0|=i;"},
@@ -187,8 +183,9 @@ op tab[] =
   {"n","n","sts.l MACL,@-<REG_N>", "0100nnnn00010010", "R[n]-=4;WLAT(R[n],MACL);"},
   {"n","n","sts.l PR,@-<REG_N>", "0100nnnn00100010", "R[n]-=4;WLAT(R[n],PR);"},
   {"n","nm","sub <REG_M>,<REG_N>", "0011nnnnmmmm1000", "R[n]-=R[m];"},
-  {"n","nm","subc <REG_M>,<REG_N>", "0011nnnnmmmm1010", "ult=R[n]-T;T=ult>T;ult=ult-R[m];T=T|(ult>R[m]);R[n]=ult;"},
-  {"n","nm","subv <REG_M>,<REG_N>", "0011nnnnmmmm1011", "abort();"},
+{"n","nm","subc <REG_M>,<REG_N>", "0011nnnnmmmm1010", "ult=R[n]-T;T=ult>R[n];R[n]=ult-R[m];T|=R[n]>ult;"},
+  {"n","nm","subv <REG_M>,<REG_N>", "0011nnnnmmmm1011",
+     "ult = R[n] - R[m]; T = (((R[n] ^ R[m]) & (ult ^ R[n])) >> 31); R[n] = ult;"},
   {"n","nm","swap.b <REG_M>,<REG_N>", "0110nnnnmmmm1000", "R[n]=((R[m]<<8)&0xff00)|((R[m]>>8)&0x00ff);"},
   {"n","nm","swap.w <REG_M>,<REG_N>", "0110nnnnmmmm1001", "R[n]=((R[m]<<16)&0xffff0000)|((R[m]>>16)&0x00ffff);"},
   {"","n","tas.b @<REG_N>", "0100nnnn00011011", "ult=RBAT(R[n]);T=ult==0;WBAT(R[n],ult|0x80);"},
@@ -205,11 +202,10 @@ op tab[] =
   {"n","n","dt <REG_N>", "0100nnnn00010000", "R[n]--; T=R[n] == 0;"},
   {"","nm","dmuls.l <REG_M>,<REG_N>", "0011nnnnmmmm1101", "dmul(1,R[n],R[m]);"},
   {"","nm","dmulu.l <REG_M>,<REG_N>", "0011nnnnmmmm0101", "dmul(0,R[n],R[m]);"},
-  {"","nm","mac.l @<REG_M>+,@<REG_N>+", "0000nnnnmmmm1111", ""},
-  
+  {"","nm","mac.l @<REG_M>+,@<REG_N>+", "0000nnnnmmmm1111", "abort();"},
+  {"","n","braf <REG_N>", "0000nnnn00100011", "ult = PC; PC+=R[n]-2;SL(ult+2);"},
+  {"","n","bsrf <REG_N>", "0000nnnn00000011", "PR = PC; PC+=R[n]-2;SL(PR+2);"},
 #if 0
-  {"braf @<REG_N>", "0000nnnn00100011", ""},
-  {"bsrf @<REG_N>", "0000nnnn00000011", ""},
   {"divs.l <REG_M>,<REG_N>", "0100nnnnmmmm1110", "divl(0,R[n],R[m]);"},
   {"divu.l <REG_M>,<REG_N>", "0100nnnnmmmm1101", "divl(0,R[n],R[m]);"},
 #endif