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| author | Helge Deller <deller@gmx.de> | 2022-10-18 15:53:37 +0200 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2022-10-18 15:53:37 +0200 |
| commit | 62f2bb0ef46a14cb3a3b069e27fdf1edb28a167e (patch) | |
| tree | c15acbee5f1acda82bfc1394c466b3d36e4397ed | |
| parent | 39554cb2c046fd813e479cd74f3158a05d230dff (diff) | |
| download | seabios-hppa-62f2bb0ef46a14cb3a3b069e27fdf1edb28a167e.zip seabios-hppa-62f2bb0ef46a14cb3a3b069e27fdf1edb28a167e.tar.gz seabios-hppa-62f2bb0ef46a14cb3a3b069e27fdf1edb28a167e.tar.bz2 | |
parisc: Save all cpu registers at pdc entry point
Signed-off-by: Helge Deller <deller@gmx.de>
| -rw-r--r-- | src/parisc/head.S | 61 |
1 files changed, 57 insertions, 4 deletions
diff --git a/src/parisc/head.S b/src/parisc/head.S index b4addcf..f320b87 100644 --- a/src/parisc/head.S +++ b/src/parisc/head.S @@ -68,6 +68,57 @@ name: #define INT_LEN 4 #endif + .macro save_reg num + STREG \num, \num*4 -2*FRAME_SIZE (%sp) + .endm + .macro restore_reg num + LDREG \num*4 -2*FRAME_SIZE (%sp), \num + .endm + + .macro save_general + save_reg 2 + save_reg 3 + save_reg 4 + save_reg 5 + save_reg 6 + save_reg 7 + save_reg 8 + save_reg 9 + save_reg 10 + save_reg 11 + save_reg 12 + save_reg 13 + save_reg 14 + save_reg 15 + save_reg 16 + save_reg 17 + save_reg 18 + save_reg 27 + save_reg 30 + .endm + + .macro rest_general + restore_reg 2 + restore_reg 3 + restore_reg 4 + restore_reg 5 + restore_reg 6 + restore_reg 7 + restore_reg 8 + restore_reg 9 + restore_reg 10 + restore_reg 11 + restore_reg 12 + restore_reg 13 + restore_reg 14 + restore_reg 15 + restore_reg 16 + restore_reg 17 + restore_reg 18 + restore_reg 27 + restore_reg 30 + .endm + .import $global$ .section ".head.text","ax" .level 1.1 @@ -332,8 +383,10 @@ END(smp_ivt) *******************************************************/ ENTRY(pdc_entry) - stw %rp,-20(%sp) - stw %dp,-32(%sp) + ldo 2*FRAME_SIZE(%sp),%sp + save_general + + /* save arguments */ stw %arg0,-36(%sp) stw %arg1,-40(%sp) stw %arg2,-44(%sp) @@ -345,9 +398,9 @@ ENTRY(pdc_entry) ldo FRAME_SIZE(%sp),%sp ldo -FRAME_SIZE(%sp),%sp - ldw -20(%sp),%rp + rest_general bv %r0(%rp) - ldw -32(%sp),%dp + ldo -2*FRAME_SIZE(%sp),%sp END(pdc_entry) /* pdc_entry_table will be copied into low memory. */ |