* ------------------------------------------------- *
* | 0 | 4 | 8 | 12 | 16 | 20 | 24 | 28 | *
* ------------------------------------------------- *
- * | S0 | S1 | S2 | S3 | S4 | S5 | S6 | S7 | *
+ * | F20 | F22 | F24 | F26 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | *
* ------------------------------------------------- *
- * | FP |hiddn| RA | PC | GP | FCTX| DATA| | *
+ * | F28 | F30 | S0 | S1 | S2 | S3 | *
+ * ------------------------------------------------- *
+ * ------------------------------------------------- *
+ * | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
+ * ------------------------------------------------- *
+ * | 64 | 68 | 72 | 76 | 80 | 84 | 88 | 92 | *
+ * ------------------------------------------------- *
+ * | S4 | S5 | S6 | S7 | FP |hiddn| RA | PC | *
+ * ------------------------------------------------- *
+ * ------------------------------------------------- *
+ * | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
+ * ------------------------------------------------- *
+ * | 96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 | *
+ * ------------------------------------------------- *
+ * | GP | FCTX| DATA| | | | | | *
* ------------------------------------------------- *
* *
* *****************************************************/
.ent ontop_fcontext
ontop_fcontext:
# reserve space on stack
- addiu $sp, $sp, -112
+ addiu $sp, $sp, -96
- sw $s0, ($sp) # save S0
- sw $s1, 4($sp) # save S1
- sw $s2, 8($sp) # save S2
- sw $s3, 12($sp) # save S3
- sw $s4, 16($sp) # save S4
- sw $s5, 20($sp) # save S5
- sw $s6, 24($sp) # save S6
- sw $s7, 28($sp) # save S7
- sw $fp, 32($sp) # save FP
- sw $a0, 36($sp) # save hidden, address of returned transfer_t
- sw $ra, 40($sp) # save RA
- sw $ra, 44($sp) # save RA as PC
+ sw $s0, 48($sp) # save S0
+ sw $s1, 52($sp) # save S1
+ sw $s2, 56($sp) # save S2
+ sw $s3, 60($sp) # save S3
+ sw $s4, 64($sp) # save S4
+ sw $s5, 68($sp) # save S5
+ sw $s6, 72($sp) # save S6
+ sw $s7, 76($sp) # save S7
+ sw $fp, 80($sp) # save FP
+ sw $a0, 84($sp) # save hidden, address of returned transfer_t
+ sw $ra, 88($sp) # save RA
+ sw $ra, 92($sp) # save RA as PC
+
+#if defined(__mips_hard_float)
+ s.d $f20, ($sp) # save F20
+ s.d $f22, 8($sp) # save F22
+ s.d $f24, 16($sp) # save F24
+ s.d $f26, 24($sp) # save F26
+ s.d $f28, 32($sp) # save F28
+ s.d $f30, 40($sp) # save F30
+#endif
# store SP (pointing to context-data) in A0
move $a0, $sp
# restore SP (pointing to context-data) from A1
move $sp, $a1
- lw $s0, ($sp) # restore S0
- lw $s1, 4($sp) # restore S1
- lw $s2, 8($sp) # restore S2
- lw $s3, 12($sp) # restore S3
- lw $s4, 16($sp) # restore S4
- lw $s5, 20($sp) # restore S5
- lw $s6, 24($sp) # restore S6
- lw $s7, 28($sp) # restore S7
- lw $fp, 32($sp) # restore FP
- lw $t0, 36($sp) # restore hidden, address of returned transfer_t
- lw $ra, 40($sp) # restore RA
+#if defined(__mips_hard_float)
+ l.d $f20, ($sp) # restore F20
+ l.d $f22, 8($sp) # restore F22
+ l.d $f24, 16($sp) # restore F24
+ l.d $f26, 24($sp) # restore F26
+ l.d $f28, 32($sp) # restore F28
+ l.d $f30, 40($sp) # restore F30
+#endif
+
+ lw $s0, 48($sp) # restore S0
+ lw $s1, 52($sp) # restore S1
+ lw $s2, 56($sp) # restore S2
+ lw $s3, 60($sp) # restore S3
+ lw $s4, 64($sp) # restore S4
+ lw $s5, 68($sp) # restore S5
+ lw $s6, 72($sp) # restore S6
+ lw $s7, 76($sp) # restore S7
+ lw $fp, 80($sp) # restore FP
+ lw $t0, 84($sp) # restore hidden, address of returned transfer_t
+ lw $ra, 88($sp) # restore RA
# load PC
lw $t9, 44($sp)
# adjust stack
- addiu $sp, $sp, 112
+ addiu $sp, $sp, 96
# return transfer_t from jump
sw $a0, ($t0) # fctx of transfer_t