diff options
Diffstat (limited to 'resources/asm/bootstrap.atk16')
| -rw-r--r-- | resources/asm/bootstrap.atk16 | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/resources/asm/bootstrap.atk16 b/resources/asm/bootstrap.atk16 index 4e5cd24..9b024e6 100644 --- a/resources/asm/bootstrap.atk16 +++ b/resources/asm/bootstrap.atk16 @@ -1,3 +1,5 @@ +@let SP RH + ; vector table fields @let vector_table 0x10 @let vt_ISR0 0x10 ; ISR0 @@ -44,7 +46,8 @@ hlt @label keyboard_isr - stack_stash RA RB + spu RA + spu RB ldi vt_kb_pp_addr RA ; RA := Keyboard peripheral address pointer ldr RA RA ; RA := Keyboard peripheral address deref ldr RA RA ; RA := <16-bit keyboard character code> from MMIO register @@ -52,7 +55,8 @@ ldr RB RB ; RB := Terminal peripheral address deref str RA RB ; terminal <- character code (ASCII?) mov RA RE ; RE := character code (for debugging) - stack_restore RA RB + spo RB + spo RA rti @label program_segment @@ -66,6 +70,9 @@ @address program_segment ; set graphics mode to disabled - set_graphics_mode gr_disabled_mode + ldi vt_gr_mode_addr RA + ldr RA RA + ldi gr_disabled_mode RB + str RB RA ; jump to main (user defined) jpi main |