gwj / at91sam9263 · Commits

Commit 9e85e9bdcf473f2e28072602fff7dc96f9025f6d

Authored by aurel32
1 parent 8632fb9a

alpha: fix lit sign 

according to the alpha arch reference, the literal field of an operate
instruction is unsigned:

If bit <12> of the instruction is 1, an 8-bit zero-extended literal
constant is formed by bits
<20:13> of the instruction. The l teral is interpreted as a positive
integer bet ween 0 and 255
and is zero-extended to 64 bits.

This patch fixes the mis-interpretation of the literal field.

(Tristan Gingold)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5211 c046a42c-6fe2-441c-8c8c-71466251a162
Inline Side-by-side
Showing 1 changed file with 3 additions and 3 deletions
target-alpha/translate.c
  View file @9e85e9b
@@ -351,7 +351,7 @@ static always_inline void gen_fbcond (DisasContext *ctx, @@ -351,7 +351,7 @@ static always_inline void gen_fbcond (DisasContext *ctx,
351 351
352 static always_inline void gen_arith2 (DisasContext *ctx, 352 static always_inline void gen_arith2 (DisasContext *ctx,
353 void (*gen_arith_op)(void), 353 void (*gen_arith_op)(void),
354 - int rb, int rc, int islit, int8_t lit) 354 + int rb, int rc, int islit, uint8_t lit)
355 { 355 {
356 if (islit) 356 if (islit)
357 tcg_gen_movi_i64(cpu_T[0], lit); 357 tcg_gen_movi_i64(cpu_T[0], lit);
@@ -367,7 +367,7 @@ static always_inline void gen_arith2 (DisasContext *ctx, @@ -367,7 +367,7 @@ static always_inline void gen_arith2 (DisasContext *ctx,
367 static always_inline void gen_arith3 (DisasContext *ctx, 367 static always_inline void gen_arith3 (DisasContext *ctx,
368 void (*gen_arith_op)(void), 368 void (*gen_arith_op)(void),
369 int ra, int rb, int rc, 369 int ra, int rb, int rc,
370 - int islit, int8_t lit) 370 + int islit, uint8_t lit)
371 { 371 {
372 if (ra != 31) 372 if (ra != 31)
373 tcg_gen_mov_i64(cpu_T[0], cpu_ir[ra]); 373 tcg_gen_mov_i64(cpu_T[0], cpu_ir[ra]);
@@ -387,7 +387,7 @@ static always_inline void gen_arith3 (DisasContext *ctx, @@ -387,7 +387,7 @@ static always_inline void gen_arith3 (DisasContext *ctx,
387 static always_inline void gen_cmov (DisasContext *ctx, 387 static always_inline void gen_cmov (DisasContext *ctx,
388 void (*gen_test_op)(void), 388 void (*gen_test_op)(void),
389 int ra, int rb, int rc, 389 int ra, int rb, int rc,
390 - int islit, int8_t lit) 390 + int islit, uint8_t lit)
391 { 391 {
392 if (ra != 31) 392 if (ra != 31)
393 tcg_gen_mov_i64(cpu_T[0], cpu_ir[ra]); 393 tcg_gen_mov_i64(cpu_T[0], cpu_ir[ra]);