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Merge pull request #726 from larsclausen/vvp-remove-unused-instructions 

vvp: Remove unused index word instructions
This commit is contained in:
Stephen Williams 2022-06-05 17:29:38 -07:00 committed by GitHub
parent 5fb2d9158d 86cc6e6159
commit 68f75dce61
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 0 additions and 50 deletions
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3
vvp/compile.cc
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@ -129,8 +129,6 @@ static const struct opcode_table_s opcode_table[] = {
{ "%cmp/we", of_CMPWE, 0, {OA_NONE, OA_NONE, OA_NONE} },
{ "%cmp/wne", of_CMPWNE, 0, {OA_NONE, OA_NONE, OA_NONE} },
{ "%cmp/wr", of_CMPWR, 0, {OA_NONE, OA_NONE, OA_NONE} },
{ "%cmp/ws", of_CMPWS, 2, {OA_BIT1, OA_BIT2, OA_NONE} },
{ "%cmp/wu", of_CMPWU, 2, {OA_BIT1, OA_BIT2, OA_NONE} },
{ "%cmp/x", of_CMPX, 0, {OA_NONE, OA_NONE, OA_NONE} },
{ "%cmp/z", of_CMPZ, 0, {OA_NONE, OA_NONE, OA_NONE} },
{ "%cmpi/e", of_CMPIE, 3, {OA_BIT1, OA_BIT2, OA_NUMBER} },
@ -216,7 +214,6 @@ static const struct opcode_table_s opcode_table[] = {
{ "%mod", of_MOD, 0, {OA_NONE, OA_NONE, OA_NONE} },
{ "%mod/s", of_MOD_S, 0, {OA_NONE, OA_NONE, OA_NONE} },
{ "%mod/wr", of_MOD_WR, 0, {OA_NONE, OA_NONE, OA_NONE} },
{ "%mov/wu", of_MOV_WU, 2, {OA_BIT1, OA_BIT2, OA_NONE} },
{ "%mul", of_MUL, 0, {OA_NONE, OA_NONE, OA_NONE} },
{ "%mul/wr", of_MUL_WR, 0, {OA_NONE, OA_NONE, OA_NONE} },
{ "%muli", of_MULI, 3, {OA_BIT1, OA_BIT2, OA_NUMBER} },

7
vvp/opcodes.txt
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@ -341,11 +341,6 @@ values from the real-value stack and writes the comparison result to
bits 4/5. The expressions (a < b) and (a==b) are calculated, with (b)
popped from the stack first, then (a).
* %cmp/ws <bit-l>, <bit-r>
* %cmp/wu <bit-l>, <bit-r>
[compare signed/unsigned integer words.]
* %cmp/z
* %cmp/x
@ -806,8 +801,6 @@ The /s form does signed %.
This opcode is the real-valued modulus of the two real values.
* %mov/wu <dst>, <src>
* %mul
* %muli <vala>, <valb>, <wid>

40
vvp/vthread.cc
View File

@ -2245,34 +2245,6 @@ bool of_CMPWR(vthread_t thr, vvp_code_t)
return true;
}
bool of_CMPWS(vthread_t thr, vvp_code_t cp)
{
int64_t l = thr->words[cp->bit_idx[0]].w_int;
int64_t r = thr->words[cp->bit_idx[1]].w_int;
vvp_bit4_t eq = (l == r)? BIT4_1 : BIT4_0;
vvp_bit4_t lt = (l < r)? BIT4_1 : BIT4_0;
thr->flags[4] = eq;
thr->flags[5] = lt;
return true;
}
bool of_CMPWU(vthread_t thr, vvp_code_t cp)
{
uint64_t l = thr->words[cp->bit_idx[0]].w_uint;
uint64_t r = thr->words[cp->bit_idx[1]].w_uint;
vvp_bit4_t eq = (l == r)? BIT4_1 : BIT4_0;
vvp_bit4_t lt = (l < r)? BIT4_1 : BIT4_0;
thr->flags[4] = eq;
thr->flags[5] = lt;
return true;
}
/*
* %cmp/z
*/
@ -4467,18 +4439,6 @@ bool of_PARTI_U(vthread_t thr, vvp_code_t cp)
return of_PARTI_base(thr, cp, false);
}
/*
* %mov/wu <dst>, <src>
*/
bool of_MOV_WU(vthread_t thr, vvp_code_t cp)
{
unsigned dst = cp->bit_idx[0];
unsigned src = cp->bit_idx[1];
thr->words[dst].w_uint = thr->words[src].w_uint;
return true;
}
/*
* %mul
*/