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Added C support for I mode instructions

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This commit is contained in:
niravthakkar 2016-12-14 13:30:49 +05:30 committed by GitHub
parent cdb31062b7
commit 4641b9a42d
1 changed files with 8 additions and 1 deletions
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9
dynasm/dasm_s390x.h
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@ -23,7 +23,7 @@ enum {
/* The following actions also have an argument. */
DASM_REL_PC, DASM_LABEL_PC,
DASM_DISP12, DASM_DISP20,
DASM_IMM16, DASM_IMM32,
DASM_IMM8, DASM_IMM16, DASM_IMM32,
DASM_LEN8R,DASM_LEN4HR,DASM_LEN4LR,
DASM__MAX
};
@ -268,6 +268,9 @@ void dasm_put(Dst_DECL, int start, ...)
*pl = -pos; /* Label exists now. */
b[pos++] = ofs; /* Store pass1 offset estimate. */
break;
case DASM_IMM8:
b[pos++] = n;
break;
case DASM_IMM16:
CK(((short)n) == n || ((unsigned short)n) == n, RANGE_I); /* TODO: is this the right way to handle unsigned immediates? */
ofs += 2;
@ -370,6 +373,7 @@ int dasm_link(Dst_DECL, size_t * szp)
p++;
b[pos++] += ofs;
break;
case DASM_IMM8:
case DASM_IMM16:
case DASM_IMM32:
case DASM_DISP20:
@ -457,6 +461,9 @@ int dasm_encode(Dst_DECL, void *buffer)
break;
case DASM_LABEL_PC:
break;
case DASM_IMM8:
cp[-1] |= n & 0xff;
break;
case DASM_IMM16:
*cp++ = n;
break;