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* Unit testing of PKE sim continuing. Only minor VU addressing problems

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found today.
This commit is contained in:
Frank Ch. Eigler 1998-02-25 01:13:05 +00:00
parent fdd59f73f9
commit 89154e47a3
1 changed files with 16 additions and 18 deletions
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34
sim/mips/sky-pke.c
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@ -990,26 +990,18 @@ pke_code_stmod(struct pke_device* me, unsigned_4 pkecode)
void
pke_code_mskpath3(struct pke_device* me, unsigned_4 pkecode)
{
#if 0
/* XXX: pending on patrickm support code */
int imm = BIT_MASK_GET(pkecode, PKE_OPCODE_IMM_B, PKE_OPCODE_IMM_E);
unsigned_4 gif_mode;
/* read old GIF control register */
ASSERT(sizeof(unsigned_4) == 4);
PKE_MEM_READ(me, GIF_REG_MODE, & gif_mode, 4);
/* mask appropriate bit */
/* set appropriate bit */
if(BIT_MASK_GET(imm, PKE_REG_MSKPATH3_B, PKE_REG_MSKPATH3_E) != 0)
gif_mode |= GIF_REG_MODE_M3R_MASK;
gif_mode = GIF_REG_MODE_M3R_MASK;
else
gif_mode &= ~GIF_REG_MODE_M3R_MASK;
gif_mode = 0;
/* write back modified register */
/* write register; patrickm code will look at M3R bit only */
PKE_MEM_WRITE(me, GIF_REG_MODE, & gif_mode, 4);
#endif
/* done */
pke_pc_advance(me, 1);
PKE_REG_MASK_SET(me, STAT, PPS, PKE_REG_STAT_PPS_IDLE);
@ -1415,6 +1407,7 @@ pke_code_mpg(struct pke_device* me, unsigned_4 pkecode)
{
address_word vu_addr_base, vu_addr;
address_word vutrack_addr_base, vutrack_addr;
address_word vu_addr_max_size;
unsigned_4 vu_lower_opcode, vu_upper_opcode;
unsigned_4* operand;
unsigned_4 source_addr;
@ -1429,14 +1422,19 @@ pke_code_mpg(struct pke_device* me, unsigned_4 pkecode)
/* VU*_MEM0 : instruction memory */
vu_addr_base = (me->pke_number == 0) ?
VU0_MEM0_WINDOW_START : VU1_MEM0_WINDOW_START;
vu_addr = vu_addr_base + (imm + i) * 8;
/* XXX: overflow check! */
/* VU*_MEM0_TRACK : source-addr tracking table */
vu_addr_max_size = (me->pke_number == 0) ?
VU0_MEM0_SIZE : VU1_MEM0_SIZE;
vutrack_addr_base = (me->pke_number == 0) ?
VU0_MEM0_SRCADDR_START : VU1_MEM0_SRCADDR_START;
vutrack_addr = vutrack_addr_base + (imm + i) * 4;
/* compute VU address for this word-pair */
vu_addr = vu_addr_base + (imm + i) * 8;
/* check for vu_addr overflow */
while(vu_addr >= vu_addr_base + vu_addr_max_size)
vu_addr -= vu_addr_max_size;
/* compute VU tracking address */
vutrack_addr = vutrack_addr_base + ((signed_8)vu_addr - (signed_8)vu_addr_base) / 2;
/* Fetch operand words; assume they are already little-endian for VU imem */
fq = pke_pc_fifo(me, i*2 + 1, & operand);