mc.h
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/* These MVs are passed in as arguments */
/* Chroma MVs are calculated and don't need to be sent in */
/* LBASE and OBASE are Relative to the base registers passed in */
#define ROffset eval(MB_YREF_SIZE/2)
#define CrOffset eval(MB_YREF_SIZE)
#define RCrOffset eval(MB_UVREF_SIZE/2)
#define OCrOffset CrOffset
.name dum, $6
.name dum2, $7
.name mc4, $8
.name Lbasep1, $15
.name Rbasep1, $16
.name xh, $17
.name yh, $18
.name mvx, $19
.name mvy, $20
.name xRbase, $21
.name xLbase, $22
.name xObase, $23
.name rtn2, $24
.name v0, $v4
.name v1, $v5
.name v2, $v6
.name v3, $v7
.name v0h, $v8
.name v1h, $v9
.name v2h, $v10
.name v3h, $v11
#define t0 t1p1
#define t3 t2p1
.name t1, $v12
.name t1p1, $v13
.name t2, $v14
.name t2p1, $v15
.name t0h, $v16
.name t1h, $v17
.name t2h, $v18
.name t3h, $v19
.name vdum, $v20
.name vdum2, $v21
.name vdum3, $v22
.name vdum4, $v23
.name lo_res, $v24
.name hi_res, $v25
.name vconsts, $v31
#define HI_BYTE 0
#define LO_BYTE 1
#define DIV2 2
#define DIV4 3
define(vaddb2,
`vmudl vdum, $2, vconsts[HI_BYTE]
vmadl vdum, $3, vconsts[HI_BYTE]
vmulf hi_res, vdum, vconsts[DIV2]
vand vdum, $2, vconsts[LO_BYTE]
vand vdum2, $3, vconsts[LO_BYTE]
vadd vdum, vdum, vdum2
vmulf lo_res, vdum, vconsts[DIV2]
vmudn $1, hi_res, vconsts[HI_BYTE]
vadd $1, $1, lo_res')
define(vaddb4,
`vmudl vdum, $2, vconsts[HI_BYTE]
vmadl vdum, $3, vconsts[HI_BYTE]
vmadl vdum, $4, vconsts[HI_BYTE]
vmadl vdum, $5, vconsts[HI_BYTE]
vmulf hi_res, vdum, vconsts[DIV4]
vand vdum, $2, vconsts[LO_BYTE]
vand vdum2, $3, vconsts[LO_BYTE]
vand vdum3, $4, vconsts[LO_BYTE]
vand vdum4, $5, vconsts[LO_BYTE]
vmulf vdum, vdum, vconsts[DIV4]
vmacf vdum, vdum2, vconsts[DIV4]
vmacf vdum, vdum3, vconsts[DIV4]
vmacf lo_res, vdum4, vconsts[DIV4]
vmudn $1, hi_res, vconsts[HI_BYTE]
vadd $1, $1, lo_res')