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Implement a set of new QC opcodes for bit shifts and unsigned integer math. #237

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merged 6 commits into from
Jan 22, 2025
Merged

Implement a set of new QC opcodes for bit shifts and unsigned integer math. #237

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b6ab2f8
Fix OP_???_IF math.
divVerent Jan 3, 2025
1059745
progsvm: add internal support for uint type.
divVerent Jan 3, 2025
765a1ae
Add opcodes for uint and bit shifting.
divVerent Jan 3, 2025
41b651e
OP_DIV_*: add division by zero checks.
divVerent Jan 3, 2025
98dfcaa
Remove some now unnecessary casts.
divVerent Jan 4, 2025
53b5b45
Fix error format strings.
divVerent Jan 4, 2025
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1 change: 1 addition & 0 deletions progsvm.h
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Original file line number Diff line number Diff line change
Expand Up @@ -65,6 +65,7 @@ typedef union prvm_eval_s
prvm_int_t function;
prvm_int_t ivector[3];
prvm_int_t _int;
prvm_uint_t _uint;
prvm_int_t edict;
} prvm_eval_t;

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6 changes: 6 additions & 0 deletions prvm_edict.c
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Expand Up @@ -2443,6 +2443,12 @@ void PRVM_Prog_Load(prvm_prog_t *prog, const char *filename, unsigned char *data
case OP_STOREP_FNC:
case OP_STOREP_V:
case OP_STOREP_I:
case OP_RSHIFT_I:
case OP_LSHIFT_I:
case OP_LE_U:
case OP_LT_U:
case OP_DIV_U:
case OP_RSHIFT_U:
if (a >= prog->progs_numglobals || b >= prog->progs_numglobals || c >= prog->progs_numglobals)
prog->error_cmd("%s: out of bounds global index (statement %d)", __func__, i);
prog->statements[i].op = op;
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22 changes: 20 additions & 2 deletions prvm_exec.c
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Expand Up @@ -205,8 +205,8 @@ NULL,
"DIV_VF",

NULL,
NULL,
NULL,
"RSHIFT_I",
"LSHIFT_I",

"GLOBALADDRESS",
"ADD_PIW",
Expand Down Expand Up @@ -294,6 +294,24 @@ NULL,
NULL,

"GLOAD_V",

NULL,
NULL,

NULL,
NULL,
NULL,
NULL,


NULL,
NULL,


"^2LE_U",
"^2LT_U",
"DIV_U",
"RSHIFT_U",
};


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