diff options
| author | Kartik Agaram <vc@akkartik.com> | 2021-01-23 23:14:34 -0800 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2021-01-23 23:14:34 -0800 |
| commit | 8c0b93a9c39340639cf57c7911ff69a42aaa97d4 (patch) | |
| tree | 273ef00d06c7c334b3ca75c86b51ca8a4513b093 | |
| parent | ac00ea787db6a3342a3511420237c0f1e983c44f (diff) | |
| download | mu-8c0b93a9c39340639cf57c7911ff69a42aaa97d4.tar.gz | |
7552 - I better understand a couple of things
| -rw-r--r-- | baremetal/boot.hex | 16 | ||||
| -rw-r--r-- | html/baremetal/boot.hex.html | 472 |
2 files changed, 256 insertions, 232 deletions
diff --git a/baremetal/boot.hex b/baremetal/boot.hex index d0a85b4f..e025efb3 100644 --- a/baremetal/boot.hex +++ b/baremetal/boot.hex @@ -199,8 +199,17 @@ e9 fb ff # loop forever 0f 01 1d # lidt 00/mod/indirect 011/subop 101/rm32/use-disp32 f8 7d 00 00 # *idt_descriptor [label] - # enable keyboard IRQ - b0 fd # al <- 0xfd # enable just IRQ1 + # For now, not bothering reprogramming the IRQ to not conflict with software + # exceptions. + # https://wiki.osdev.org/index.php?title=8259_PIC&oldid=24650#Protected_Mode + # + # Interrupt 1 (keyboard) conflicts with debugger faults. We don't use a + # debugger. + # Reference: + # https://wiki.osdev.org/Exceptions + + # enable keyboard IRQ (1) + b0 fd # al <- 0xfd # disable mask for IRQ1 e6 21 # port 0x21 <- al # initialization is done; enable interrupts @@ -340,6 +349,9 @@ e9 fb ff # loop forever 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +# By default, BIOS maps IRQ0-7 to interrupt vectors 8-15. +# https://wiki.osdev.org/index.php?title=Interrupts&oldid=25102#Default_PC_Interrupt_Vector_Assignment + # entry 8: clock 00 7d # target[0:16] = null interrupt handler [label] 08 00 # segment selector (gdt_code) diff --git a/html/baremetal/boot.hex.html b/html/baremetal/boot.hex.html index 7f666df4..7e72f177 100644 --- a/html/baremetal/boot.hex.html +++ b/html/baremetal/boot.hex.html @@ -254,173 +254,173 @@ if ('onhashchange' in window) { <span id="L199" class="LineNr">199 </span> 0f 01 1d <span class="subxComment"># lidt 00/mod/indirect 011/subop 101/rm32/use-disp32</span> <span id="L200" class="LineNr">200 </span> f8 7d 00 00 <span class="subxComment"># *idt_descriptor [label]</span> <span id="L201" class="LineNr">201 </span> -<span id="L202" class="LineNr">202 </span> <span class="subxComment"># enable keyboard IRQ</span> -<span id="L203" class="LineNr">203 </span> b0 fd <span class="subxComment"># al <- 0xfd # enable just IRQ1</span> -<span id="L204" class="LineNr">204 </span> e6 21 <span class="subxComment"># port 0x21 <- al</span> -<span id="L205" class="LineNr">205 </span> -<span id="L206" class="LineNr">206 </span> <span class="subxComment"># initialization is done; enable interrupts</span> -<span id="L207" class="LineNr">207 </span> fb -<span id="L208" class="LineNr">208 </span> e9 01 13 00 00 <span class="subxComment"># jump to 0x9000 [label]</span> -<span id="L209" class="LineNr">209 </span> -<span id="L210" class="LineNr">210 </span><span class="subxComment"># padding</span> -<span id="L211" class="LineNr">211 </span><span class="subxComment"># ff:</span> -<span id="L212" class="LineNr">212 </span> 00 -<span id="L213" class="LineNr">213 </span> -<span id="L214" class="LineNr">214 </span><span class="subxComment"># 100:</span> -<span id="L215" class="LineNr">215 </span><span class="subxComment"># null interrupt handler:</span> -<span id="L216" class="LineNr">216 </span> cf <span class="subxComment"># iret</span> -<span id="L217" class="LineNr">217 </span> -<span id="L218" class="LineNr">218 </span><span class="subxComment"># padding</span> -<span id="L219" class="LineNr">219 </span><span class="subxComment"># 101:</span> -<span id="L220" class="LineNr">220 </span> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L221" class="LineNr">221 </span> -<span id="L222" class="LineNr">222 </span><span class="subxComment"># 110:</span> -<span id="L223" class="LineNr">223 </span><span class="subxComment"># keyboard interrupt handler:</span> -<span id="L224" class="LineNr">224 </span> <span class="subxComment"># prologue</span> -<span id="L225" class="LineNr">225 </span> fa <span class="subxComment"># disable interrupts</span> -<span id="L226" class="LineNr">226 </span> 60 <span class="subxComment"># push all registers to stack</span> -<span id="L227" class="LineNr">227 </span> <span class="subxComment"># acknowledge interrupt</span> -<span id="L228" class="LineNr">228 </span> b0 20 <span class="subxComment"># al <- 0x20</span> -<span id="L229" class="LineNr">229 </span> e6 20 <span class="subxComment"># port 0x20 <- al</span> -<span id="L230" class="LineNr">230 </span> <span class="subxComment"># read status into eax</span> -<span id="L231" class="LineNr">231 </span> 31 c0 <span class="subxComment"># eax <- xor eax; 11/direct 000/r32/eax 000/rm32/eax</span> -<span id="L232" class="LineNr">232 </span> e4 64 <span class="subxComment"># al <- port 0x64</span> -<span id="L233" class="LineNr">233 </span> <span class="subxComment"># if (status & 0x1) == 0, return</span> -<span id="L234" class="LineNr">234 </span> 24 01 <span class="subxComment"># al <- and 0x1</span> -<span id="L235" class="LineNr">235 </span> 3c 00 <span class="subxComment"># compare al, 0</span> -<span id="L236" class="LineNr">236 </span> 74 39 <span class="subxComment"># jump to epilogue if = [label]</span> -<span id="L237" class="LineNr">237 </span><span class="subxComment"># 120:</span> -<span id="L238" class="LineNr">238 </span> <span class="subxComment"># if keyboard buffer is full, return</span> -<span id="L239" class="LineNr">239 </span> 31 c9 <span class="subxComment"># ecx <- xor ecx; 11/direct 001/r32/ecx 001/rm32/ecx</span> -<span id="L240" class="LineNr">240 </span> <span class="subxS1Comment"># . var index/ecx: byte</span> -<span id="L241" class="LineNr">241 </span> 8a <span class="subxComment"># copy m8 at r32 to r8</span> -<span id="L242" class="LineNr">242 </span> 0d <span class="subxComment"># 00/mod/indirect 001/r8/cl 101/rm32/use-disp32</span> -<span id="L243" class="LineNr">243 </span> c8 7d 00 00 <span class="subxComment"># disp32 [label]</span> -<span id="L244" class="LineNr">244 </span> <span class="subxS1Comment"># . al = *(keyboard buffer + index)</span> -<span id="L245" class="LineNr">245 </span> 8a <span class="subxComment"># copy m8 at r32 to r8</span> -<span id="L246" class="LineNr">246 </span> 81 <span class="subxComment"># 10/mod/*+disp32 000/r8/al 001/rm32/ecx</span> -<span id="L247" class="LineNr">247 </span> d0 7d 00 00 <span class="subxComment"># disp32 [label]</span> -<span id="L248" class="LineNr">248 </span> <span class="subxS1Comment"># . if (al != 0) return</span> -<span id="L249" class="LineNr">249 </span> 3c 00 <span class="subxComment"># compare al, 0</span> -<span id="L250" class="LineNr">250 </span><span class="subxComment"># 130:</span> -<span id="L251" class="LineNr">251 </span> 75 27 <span class="subxComment"># jump to epilogue if != [label]</span> -<span id="L252" class="LineNr">252 </span> <span class="subxComment"># read keycode into al</span> -<span id="L253" class="LineNr">253 </span> e4 60 <span class="subxComment"># al <- port 0x60</span> -<span id="L254" class="LineNr">254 </span> <span class="subxComment"># if (al & 0x80) a key is being lifted; return</span> -<span id="L255" class="LineNr">255 </span> 50 <span class="subxComment"># push eax</span> -<span id="L256" class="LineNr">256 </span> 24 80 <span class="subxComment"># al <- and 0x80</span> -<span id="L257" class="LineNr">257 </span> 3c 00 <span class="subxComment"># compare al, 0</span> -<span id="L258" class="LineNr">258 </span> 58 <span class="subxComment"># pop to eax (without touching flags)</span> -<span id="L259" class="LineNr">259 </span> 75 1d <span class="subxComment"># jump to epilogue if != [label]</span> -<span id="L260" class="LineNr">260 </span><span class="subxComment"># 13c:</span> -<span id="L261" class="LineNr">261 </span> <span class="subxComment"># al <- *(keyboard normal map + eax)</span> -<span id="L262" class="LineNr">262 </span> 8a <span class="subxComment"># copy m8 at rm32 to r8</span> -<span id="L263" class="LineNr">263 </span> 80 <span class="subxComment"># 10/mod/*+disp32 000/r8/al 000/rm32/eax</span> -<span id="L264" class="LineNr">264 </span> 00 80 00 00 <span class="subxComment"># disp32 [label]</span> -<span id="L265" class="LineNr">265 </span> <span class="subxComment"># if there's no character mapping, return</span> +<span id="L202" class="LineNr">202 </span> <span class="subxComment"># For now, not bothering reprogramming the IRQ to not conflict with software</span> +<span id="L203" class="LineNr">203 </span> <span class="subxComment"># exceptions.</span> +<span id="L204" class="LineNr">204 </span> <span class="subxComment"># <a href="https://wiki.osdev.org/index.php?title=8259_PIC&oldid=24650#Protected_Mode">https://wiki.osdev.org/index.php?title=8259_PIC&oldid=24650#Protected_Mode</a></span> +<span id="L205" class="LineNr">205 </span> <span class="subxComment">#</span> +<span id="L206" class="LineNr">206 </span> <span class="subxComment"># Interrupt 1 (keyboard) conflicts with debugger faults. We don't use a</span> +<span id="L207" class="LineNr">207 </span> <span class="subxComment"># debugger.</span> +<span id="L208" class="LineNr">208 </span> <span class="subxComment"># Reference:</span> +<span id="L209" class="LineNr">209 </span> <span class="subxComment"># <a href="https://wiki.osdev.org/Exceptions">https://wiki.osdev.org/Exceptions</a></span> +<span id="L210" class="LineNr">210 </span> +<span id="L211" class="LineNr">211 </span> <span class="subxComment"># enable keyboard IRQ (1)</span> +<span id="L212" class="LineNr">212 </span> b0 fd <span class="subxComment"># al <- 0xfd # disable mask for IRQ1</span> +<span id="L213" class="LineNr">213 </span> e6 21 <span class="subxComment"># port 0x21 <- al</span> +<span id="L214" class="LineNr">214 </span> +<span id="L215" class="LineNr">215 </span> <span class="subxComment"># initialization is done; enable interrupts</span> +<span id="L216" class="LineNr">216 </span> fb +<span id="L217" class="LineNr">217 </span> e9 01 13 00 00 <span class="subxComment"># jump to 0x9000 [label]</span> +<span id="L218" class="LineNr">218 </span> +<span id="L219" class="LineNr">219 </span><span class="subxComment"># padding</span> +<span id="L220" class="LineNr">220 </span><span class="subxComment"># ff:</span> +<span id="L221" class="LineNr">221 </span> 00 +<span id="L222" class="LineNr">222 </span> +<span id="L223" class="LineNr">223 </span><span class="subxComment"># 100:</span> +<span id="L224" class="LineNr">224 </span><span class="subxComment"># null interrupt handler:</span> +<span id="L225" class="LineNr">225 </span> cf <span class="subxComment"># iret</span> +<span id="L226" class="LineNr">226 </span> +<span id="L227" class="LineNr">227 </span><span class="subxComment"># padding</span> +<span id="L228" class="LineNr">228 </span><span class="subxComment"># 101:</span> +<span id="L229" class="LineNr">229 </span> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L230" class="LineNr">230 </span> +<span id="L231" class="LineNr">231 </span><span class="subxComment"># 110:</span> +<span id="L232" class="LineNr">232 </span><span class="subxComment"># keyboard interrupt handler:</span> +<span id="L233" class="LineNr">233 </span> <span class="subxComment"># prologue</span> +<span id="L234" class="LineNr">234 </span> fa <span class="subxComment"># disable interrupts</span> +<span id="L235" class="LineNr">235 </span> 60 <span class="subxComment"># push all registers to stack</span> +<span id="L236" class="LineNr">236 </span> <span class="subxComment"># acknowledge interrupt</span> +<span id="L237" class="LineNr">237 </span> b0 20 <span class="subxComment"># al <- 0x20</span> +<span id="L238" class="LineNr">238 </span> e6 20 <span class="subxComment"># port 0x20 <- al</span> +<span id="L239" class="LineNr">239 </span> <span class="subxComment"># read status into eax</span> +<span id="L240" class="LineNr">240 </span> 31 c0 <span class="subxComment"># eax <- xor eax; 11/direct 000/r32/eax 000/rm32/eax</span> +<span id="L241" class="LineNr">241 </span> e4 64 <span class="subxComment"># al <- port 0x64</span> +<span id="L242" class="LineNr">242 </span> <span class="subxComment"># if (status & 0x1) == 0, return</span> +<span id="L243" class="LineNr">243 </span> 24 01 <span class="subxComment"># al <- and 0x1</span> +<span id="L244" class="LineNr">244 </span> 3c 00 <span class="subxComment"># compare al, 0</span> +<span id="L245" class="LineNr">245 </span> 74 39 <span class="subxComment"># jump to epilogue if = [label]</span> +<span id="L246" class="LineNr">246 </span><span class="subxComment"># 120:</span> +<span id="L247" class="LineNr">247 </span> <span class="subxComment"># if keyboard buffer is full, return</span> +<span id="L248" class="LineNr">248 </span> 31 c9 <span class="subxComment"># ecx <- xor ecx; 11/direct 001/r32/ecx 001/rm32/ecx</span> +<span id="L249" class="LineNr">249 </span> <span class="subxS1Comment"># . var index/ecx: byte</span> +<span id="L250" class="LineNr">250 </span> 8a <span class="subxComment"># copy m8 at r32 to r8</span> +<span id="L251" class="LineNr">251 </span> 0d <span class="subxComment"># 00/mod/indirect 001/r8/cl 101/rm32/use-disp32</span> +<span id="L252" class="LineNr">252 </span> c8 7d 00 00 <span class="subxComment"># disp32 [label]</span> +<span id="L253" class="LineNr">253 </span> <span class="subxS1Comment"># . al = *(keyboard buffer + index)</span> +<span id="L254" class="LineNr">254 </span> 8a <span class="subxComment"># copy m8 at r32 to r8</span> +<span id="L255" class="LineNr">255 </span> 81 <span class="subxComment"># 10/mod/*+disp32 000/r8/al 001/rm32/ecx</span> +<span id="L256" class="LineNr">256 </span> d0 7d 00 00 <span class="subxComment"># disp32 [label]</span> +<span id="L257" class="LineNr">257 </span> <span class="subxS1Comment"># . if (al != 0) return</span> +<span id="L258" class="LineNr">258 </span> 3c 00 <span class="subxComment"># compare al, 0</span> +<span id="L259" class="LineNr">259 </span><span class="subxComment"># 130:</span> +<span id="L260" class="LineNr">260 </span> 75 27 <span class="subxComment"># jump to epilogue if != [label]</span> +<span id="L261" class="LineNr">261 </span> <span class="subxComment"># read keycode into al</span> +<span id="L262" class="LineNr">262 </span> e4 60 <span class="subxComment"># al <- port 0x60</span> +<span id="L263" class="LineNr">263 </span> <span class="subxComment"># if (al & 0x80) a key is being lifted; return</span> +<span id="L264" class="LineNr">264 </span> 50 <span class="subxComment"># push eax</span> +<span id="L265" class="LineNr">265 </span> 24 80 <span class="subxComment"># al <- and 0x80</span> <span id="L266" class="LineNr">266 </span> 3c 00 <span class="subxComment"># compare al, 0</span> -<span id="L267" class="LineNr">267 </span> 74 13 <span class="subxComment"># jump to epilogue if = [label]</span> -<span id="L268" class="LineNr">268 </span><span class="subxComment"># 146:</span> -<span id="L269" class="LineNr">269 </span> <span class="subxComment"># store al in keyboard buffer</span> -<span id="L270" class="LineNr">270 </span> 88 <span class="subxComment"># copy r8 to m8 at r32</span> -<span id="L271" class="LineNr">271 </span> 81 <span class="subxComment"># 10/mod/*+disp32 000/r8/al 001/rm32/ecx</span> -<span id="L272" class="LineNr">272 </span> d0 7d 00 00 <span class="subxComment"># disp32 [label]</span> -<span id="L273" class="LineNr">273 </span><span class="subxComment"># 14c:</span> -<span id="L274" class="LineNr">274 </span> <span class="subxComment"># increment index</span> -<span id="L275" class="LineNr">275 </span> fe <span class="subxComment"># increment byte</span> -<span id="L276" class="LineNr">276 </span> 05 <span class="subxComment"># 00/mod/indirect 000/subop/increment 101/rm32/use-disp32</span> -<span id="L277" class="LineNr">277 </span> c8 7d 00 00 <span class="subxComment"># disp32 [label]</span> -<span id="L278" class="LineNr">278 </span> <span class="subxComment"># clear top nibble of index (keyboard buffer is circular)</span> -<span id="L279" class="LineNr">279 </span> 80 <span class="subxComment"># and byte</span> -<span id="L280" class="LineNr">280 </span> 25 <span class="subxComment"># 00/mod/indirect 100/subop/and 101/rm32/use-disp32</span> -<span id="L281" class="LineNr">281 </span> c8 7d 00 00 <span class="subxComment"># disp32 [label]</span> -<span id="L282" class="LineNr">282 </span> 0f <span class="subxComment"># imm8</span> -<span id="L283" class="LineNr">283 </span><span class="subxComment"># 159:</span> -<span id="L284" class="LineNr">284 </span> <span class="subxComment"># epilogue</span> -<span id="L285" class="LineNr">285 </span> 61 <span class="subxComment"># pop all registers</span> -<span id="L286" class="LineNr">286 </span> fb <span class="subxComment"># enable interrupts</span> -<span id="L287" class="LineNr">287 </span> cf <span class="subxComment"># iret</span> -<span id="L288" class="LineNr">288 </span> -<span id="L289" class="LineNr">289 </span><span class="subxComment"># padding</span> -<span id="L290" class="LineNr">290 </span><span class="subxComment"># 15c:</span> -<span id="L291" class="LineNr">291 </span> 00 00 00 00 -<span id="L292" class="LineNr">292 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L293" class="LineNr">293 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L294" class="LineNr">294 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L295" class="LineNr">295 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L296" class="LineNr">296 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L297" class="LineNr">297 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L298" class="LineNr">298 </span>00 00 00 00 00 00 00 00 -<span id="L299" class="LineNr">299 </span> -<span id="L300" class="LineNr">300 </span><span class="subxComment"># 1c8:</span> -<span id="L301" class="LineNr">301 </span><span class="subxComment"># var keyboard circular buffer</span> -<span id="L302" class="LineNr">302 </span><span class="subxComment"># write index: nibble</span> -<span id="L303" class="LineNr">303 </span><span class="subxComment"># still take up 4 bytes so SubX can handle it</span> -<span id="L304" class="LineNr">304 </span> 00 00 00 00 -<span id="L305" class="LineNr">305 </span><span class="subxComment"># 1cc:</span> -<span id="L306" class="LineNr">306 </span><span class="subxComment"># read index: nibble</span> -<span id="L307" class="LineNr">307 </span><span class="subxComment"># still take up 4 bytes so SubX can handle it</span> -<span id="L308" class="LineNr">308 </span> 00 00 00 00 -<span id="L309" class="LineNr">309 </span><span class="subxComment"># 1d0:</span> -<span id="L310" class="LineNr">310 </span><span class="subxComment"># circular buffer: byte[16]</span> -<span id="L311" class="LineNr">311 </span> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L312" class="LineNr">312 </span> -<span id="L313" class="LineNr">313 </span><span class="subxComment"># padding</span> -<span id="L314" class="LineNr">314 </span><span class="subxComment"># 1e0:</span> -<span id="L315" class="LineNr">315 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L316" class="LineNr">316 </span>00 00 00 00 00 00 00 00 -<span id="L317" class="LineNr">317 </span> -<span id="L318" class="LineNr">318 </span><span class="subxComment"># 1f8:</span> -<span id="L319" class="LineNr">319 </span><span class="subxComment"># idt_descriptor:</span> -<span id="L320" class="LineNr">320 </span> ff 00 <span class="subxComment"># idt_end - idt_start - 1</span> -<span id="L321" class="LineNr">321 </span> 00 7e 00 00 <span class="subxComment"># start = idt_start [label]</span> -<span id="L322" class="LineNr">322 </span> -<span id="L323" class="LineNr">323 </span><span class="subxComment"># 1fe:</span> -<span id="L324" class="LineNr">324 </span><span class="subxComment"># final 2 bytes of boot sector</span> -<span id="L325" class="LineNr">325 </span>55 aa +<span id="L267" class="LineNr">267 </span> 58 <span class="subxComment"># pop to eax (without touching flags)</span> +<span id="L268" class="LineNr">268 </span> 75 1d <span class="subxComment"># jump to epilogue if != [label]</span> +<span id="L269" class="LineNr">269 </span><span class="subxComment"># 13c:</span> +<span id="L270" class="LineNr">270 </span> <span class="subxComment"># al <- *(keyboard normal map + eax)</span> +<span id="L271" class="LineNr">271 </span> 8a <span class="subxComment"># copy m8 at rm32 to r8</span> +<span id="L272" class="LineNr">272 </span> 80 <span class="subxComment"># 10/mod/*+disp32 000/r8/al 000/rm32/eax</span> +<span id="L273" class="LineNr">273 </span> 00 80 00 00 <span class="subxComment"># disp32 [label]</span> +<span id="L274" class="LineNr">274 </span> <span class="subxComment"># if there's no character mapping, return</span> +<span id="L275" class="LineNr">275 </span> 3c 00 <span class="subxComment"># compare al, 0</span> +<span id="L276" class="LineNr">276 </span> 74 13 <span class="subxComment"># jump to epilogue if = [label]</span> +<span id="L277" class="LineNr">277 </span><span class="subxComment"># 146:</span> +<span id="L278" class="LineNr">278 </span> <span class="subxComment"># store al in keyboard buffer</span> +<span id="L279" class="LineNr">279 </span> 88 <span class="subxComment"># copy r8 to m8 at r32</span> +<span id="L280" class="LineNr">280 </span> 81 <span class="subxComment"># 10/mod/*+disp32 000/r8/al 001/rm32/ecx</span> +<span id="L281" class="LineNr">281 </span> d0 7d 00 00 <span class="subxComment"># disp32 [label]</span> +<span id="L282" class="LineNr">282 </span><span class="subxComment"># 14c:</span> +<span id="L283" class="LineNr">283 </span> <span class="subxComment"># increment index</span> +<span id="L284" class="LineNr">284 </span> fe <span class="subxComment"># increment byte</span> +<span id="L285" class="LineNr">285 </span> 05 <span class="subxComment"># 00/mod/indirect 000/subop/increment 101/rm32/use-disp32</span> +<span id="L286" class="LineNr">286 </span> c8 7d 00 00 <span class="subxComment"># disp32 [label]</span> +<span id="L287" class="LineNr">287 </span> <span class="subxComment"># clear top nibble of index (keyboard buffer is circular)</span> +<span id="L288" class="LineNr">288 </span> 80 <span class="subxComment"># and byte</span> +<span id="L289" class="LineNr">289 </span> 25 <span class="subxComment"># 00/mod/indirect 100/subop/and 101/rm32/use-disp32</span> +<span id="L290" class="LineNr">290 </span> c8 7d 00 00 <span class="subxComment"># disp32 [label]</span> +<span id="L291" class="LineNr">291 </span> 0f <span class="subxComment"># imm8</span> +<span id="L292" class="LineNr">292 </span><span class="subxComment"># 159:</span> +<span id="L293" class="LineNr">293 </span> <span class="subxComment"># epilogue</span> +<span id="L294" class="LineNr">294 </span> 61 <span class="subxComment"># pop all registers</span> +<span id="L295" class="LineNr">295 </span> fb <span class="subxComment"># enable interrupts</span> +<span id="L296" class="LineNr">296 </span> cf <span class="subxComment"># iret</span> +<span id="L297" class="LineNr">297 </span> +<span id="L298" class="LineNr">298 </span><span class="subxComment"># padding</span> +<span id="L299" class="LineNr">299 </span><span class="subxComment"># 15c:</span> +<span id="L300" class="LineNr">300 </span> 00 00 00 00 +<span id="L301" class="LineNr">301 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L302" class="LineNr">302 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L303" class="LineNr">303 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L304" class="LineNr">304 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L305" class="LineNr">305 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L306" class="LineNr">306 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L307" class="LineNr">307 </span>00 00 00 00 00 00 00 00 +<span id="L308" class="LineNr">308 </span> +<span id="L309" class="LineNr">309 </span><span class="subxComment"># 1c8:</span> +<span id="L310" class="LineNr">310 </span><span class="subxComment"># var keyboard circular buffer</span> +<span id="L311" class="LineNr">311 </span><span class="subxComment"># write index: nibble</span> +<span id="L312" class="LineNr">312 </span><span class="subxComment"># still take up 4 bytes so SubX can handle it</span> +<span id="L313" class="LineNr">313 </span> 00 00 00 00 +<span id="L314" class="LineNr">314 </span><span class="subxComment"># 1cc:</span> +<span id="L315" class="LineNr">315 </span><span class="subxComment"># read index: nibble</span> +<span id="L316" class="LineNr">316 </span><span class="subxComment"># still take up 4 bytes so SubX can handle it</span> +<span id="L317" class="LineNr">317 </span> 00 00 00 00 +<span id="L318" class="LineNr">318 </span><span class="subxComment"># 1d0:</span> +<span id="L319" class="LineNr">319 </span><span class="subxComment"># circular buffer: byte[16]</span> +<span id="L320" class="LineNr">320 </span> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L321" class="LineNr">321 </span> +<span id="L322" class="LineNr">322 </span><span class="subxComment"># padding</span> +<span id="L323" class="LineNr">323 </span><span class="subxComment"># 1e0:</span> +<span id="L324" class="LineNr">324 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L325" class="LineNr">325 </span>00 00 00 00 00 00 00 00 <span id="L326" class="LineNr">326 </span> -<span id="L327" class="LineNr">327 </span><span class="subxComment">## sector 2</span> -<span id="L328" class="LineNr">328 </span><span class="subxComment"># loaded by load_disk, not automatically on boot</span> -<span id="L329" class="LineNr">329 </span> -<span id="L330" class="LineNr">330 </span><span class="subxComment"># offset 200 (address 0x7e00): interrupt descriptor table</span> -<span id="L331" class="LineNr">331 </span><span class="subxComment"># 32 entries * 8 bytes each = 256 bytes (0x100)</span> -<span id="L332" class="LineNr">332 </span><span class="subxComment"># idt_start:</span> -<span id="L333" class="LineNr">333 </span> -<span id="L334" class="LineNr">334 </span>00 00 00 00 00 00 00 00 -<span id="L335" class="LineNr">335 </span>00 00 00 00 00 00 00 00 -<span id="L336" class="LineNr">336 </span>00 00 00 00 00 00 00 00 -<span id="L337" class="LineNr">337 </span>00 00 00 00 00 00 00 00 -<span id="L338" class="LineNr">338 </span>00 00 00 00 00 00 00 00 -<span id="L339" class="LineNr">339 </span>00 00 00 00 00 00 00 00 -<span id="L340" class="LineNr">340 </span>00 00 00 00 00 00 00 00 -<span id="L341" class="LineNr">341 </span>00 00 00 00 00 00 00 00 +<span id="L327" class="LineNr">327 </span><span class="subxComment"># 1f8:</span> +<span id="L328" class="LineNr">328 </span><span class="subxComment"># idt_descriptor:</span> +<span id="L329" class="LineNr">329 </span> ff 00 <span class="subxComment"># idt_end - idt_start - 1</span> +<span id="L330" class="LineNr">330 </span> 00 7e 00 00 <span class="subxComment"># start = idt_start [label]</span> +<span id="L331" class="LineNr">331 </span> +<span id="L332" class="LineNr">332 </span><span class="subxComment"># 1fe:</span> +<span id="L333" class="LineNr">333 </span><span class="subxComment"># final 2 bytes of boot sector</span> +<span id="L334" class="LineNr">334 </span>55 aa +<span id="L335" class="LineNr">335 </span> +<span id="L336" class="LineNr">336 </span><span class="subxComment">## sector 2</span> +<span id="L337" class="LineNr">337 </span><span class="subxComment"># loaded by load_disk, not automatically on boot</span> +<span id="L338" class="LineNr">338 </span> +<span id="L339" class="LineNr">339 </span><span class="subxComment"># offset 200 (address 0x7e00): interrupt descriptor table</span> +<span id="L340" class="LineNr">340 </span><span class="subxComment"># 32 entries * 8 bytes each = 256 bytes (0x100)</span> +<span id="L341" class="LineNr">341 </span><span class="subxComment"># idt_start:</span> <span id="L342" class="LineNr">342 </span> -<span id="L343" class="LineNr">343 </span><span class="subxComment"># entry 8: clock</span> -<span id="L344" class="LineNr">344 </span> 00 7d <span class="subxComment"># target[0:16] = null interrupt handler [label]</span> -<span id="L345" class="LineNr">345 </span> 08 00 <span class="subxComment"># segment selector (gdt_code)</span> -<span id="L346" class="LineNr">346 </span> 00 <span class="subxComment"># unused</span> -<span id="L347" class="LineNr">347 </span> 8e <span class="subxComment"># 1/p 00/dpl 0 1110/type/32-bit-interrupt-gate</span> -<span id="L348" class="LineNr">348 </span> 00 00 <span class="subxComment"># target[16:32]</span> -<span id="L349" class="LineNr">349 </span> -<span id="L350" class="LineNr">350 </span><span class="subxComment"># entry 9: keyboard</span> -<span id="L351" class="LineNr">351 </span> 10 7d <span class="subxComment"># target[0:16] = keyboard interrupt handler [label]</span> -<span id="L352" class="LineNr">352 </span> 08 00 <span class="subxComment"># segment selector (gdt_code)</span> -<span id="L353" class="LineNr">353 </span> 00 <span class="subxComment"># unused</span> -<span id="L354" class="LineNr">354 </span> 8e <span class="subxComment"># 1/p 00/dpl 0 1110/type/32-bit-interrupt-gate</span> -<span id="L355" class="LineNr">355 </span> 00 00 <span class="subxComment"># target[16:32]</span> -<span id="L356" class="LineNr">356 </span> -<span id="L357" class="LineNr">357 </span>00 00 00 00 00 00 00 00 -<span id="L358" class="LineNr">358 </span>00 00 00 00 00 00 00 00 -<span id="L359" class="LineNr">359 </span>00 00 00 00 00 00 00 00 -<span id="L360" class="LineNr">360 </span>00 00 00 00 00 00 00 00 -<span id="L361" class="LineNr">361 </span>00 00 00 00 00 00 00 00 -<span id="L362" class="LineNr">362 </span>00 00 00 00 00 00 00 00 -<span id="L363" class="LineNr">363 </span>00 00 00 00 00 00 00 00 -<span id="L364" class="LineNr">364 </span>00 00 00 00 00 00 00 00 -<span id="L365" class="LineNr">365 </span>00 00 00 00 00 00 00 00 -<span id="L366" class="LineNr">366 </span>00 00 00 00 00 00 00 00 -<span id="L367" class="LineNr">367 </span>00 00 00 00 00 00 00 00 -<span id="L368" class="LineNr">368 </span>00 00 00 00 00 00 00 00 +<span id="L343" class="LineNr">343 </span>00 00 00 00 00 00 00 00 +<span id="L344" class="LineNr">344 </span>00 00 00 00 00 00 00 00 +<span id="L345" class="LineNr">345 </span>00 00 00 00 00 00 00 00 +<span id="L346" class="LineNr">346 </span>00 00 00 00 00 00 00 00 +<span id="L347" class="LineNr">347 </span>00 00 00 00 00 00 00 00 +<span id="L348" class="LineNr">348 </span>00 00 00 00 00 00 00 00 +<span id="L349" class="LineNr">349 </span>00 00 00 00 00 00 00 00 +<span id="L350" class="LineNr">350 </span>00 00 00 00 00 00 00 00 +<span id="L351" class="LineNr">351 </span> +<span id="L352" class="LineNr">352 </span><span class="subxComment"># By default, BIOS maps IRQ0-7 to interrupt vectors 8-15.</span> +<span id="L353" class="LineNr">353 </span><span class="subxComment"># <a href="https://wiki.osdev.org/index.php?title=Interrupts&oldid=25102#Default_PC_Interrupt_Vector_Assignment">https://wiki.osdev.org/index.php?title=Interrupts&oldid=25102#Default_PC_Interrupt_Vector_Assignment</a></span> +<span id="L354" class="LineNr">354 </span> +<span id="L355" class="LineNr">355 </span><span class="subxComment"># entry 8: clock</span> +<span id="L356" class="LineNr">356 </span> 00 7d <span class="subxComment"># target[0:16] = null interrupt handler [label]</span> +<span id="L357" class="LineNr">357 </span> 08 00 <span class="subxComment"># segment selector (gdt_code)</span> +<span id="L358" class="LineNr">358 </span> 00 <span class="subxComment"># unused</span> +<span id="L359" class="LineNr">359 </span> 8e <span class="subxComment"># 1/p 00/dpl 0 1110/type/32-bit-interrupt-gate</span> +<span id="L360" class="LineNr">360 </span> 00 00 <span class="subxComment"># target[16:32]</span> +<span id="L361" class="LineNr">361 </span> +<span id="L362" class="LineNr">362 </span><span class="subxComment"># entry 9: keyboard</span> +<span id="L363" class="LineNr">363 </span> 10 7d <span class="subxComment"># target[0:16] = keyboard interrupt handler [label]</span> +<span id="L364" class="LineNr">364 </span> 08 00 <span class="subxComment"># segment selector (gdt_code)</span> +<span id="L365" class="LineNr">365 </span> 00 <span class="subxComment"># unused</span> +<span id="L366" class="LineNr">366 </span> 8e <span class="subxComment"># 1/p 00/dpl 0 1110/type/32-bit-interrupt-gate</span> +<span id="L367" class="LineNr">367 </span> 00 00 <span class="subxComment"># target[16:32]</span> +<span id="L368" class="LineNr">368 </span> <span id="L369" class="LineNr">369 </span>00 00 00 00 00 00 00 00 <span id="L370" class="LineNr">370 </span>00 00 00 00 00 00 00 00 <span id="L371" class="LineNr">371 </span>00 00 00 00 00 00 00 00 @@ -431,73 +431,85 @@ if ('onhashchange' in window) { <span id="L376" class="LineNr">376 </span>00 00 00 00 00 00 00 00 <span id="L377" class="LineNr">377 </span>00 00 00 00 00 00 00 00 <span id="L378" class="LineNr">378 </span>00 00 00 00 00 00 00 00 -<span id="L379" class="LineNr">379 </span><span class="subxComment"># idt_end:</span> -<span id="L380" class="LineNr">380 </span> -<span id="L381" class="LineNr">381 </span><span class="subxComment"># offset 300 (address 0x7f00):</span> -<span id="L382" class="LineNr">382 </span><span class="subxComment"># video mode info:</span> -<span id="L383" class="LineNr">383 </span> 00 00 <span class="subxComment"># attributes</span> -<span id="L384" class="LineNr">384 </span> 00 <span class="subxComment"># winA</span> -<span id="L385" class="LineNr">385 </span> 00 <span class="subxComment"># winB</span> -<span id="L386" class="LineNr">386 </span><span class="subxComment"># 304</span> -<span id="L387" class="LineNr">387 </span> 00 00 <span class="subxComment"># granularity</span> -<span id="L388" class="LineNr">388 </span> 00 00 <span class="subxComment"># winsize</span> -<span id="L389" class="LineNr">389 </span><span class="subxComment"># 308</span> -<span id="L390" class="LineNr">390 </span> 00 00 <span class="subxComment"># segmentA</span> -<span id="L391" class="LineNr">391 </span> 00 00 <span class="subxComment"># segmentB</span> -<span id="L392" class="LineNr">392 </span><span class="subxComment"># 30c</span> -<span id="L393" class="LineNr">393 </span> 00 00 00 00 <span class="subxComment"># realFctPtr (who knows)</span> -<span id="L394" class="LineNr">394 </span><span class="subxComment"># 310</span> -<span id="L395" class="LineNr">395 </span> 00 00 <span class="subxComment"># pitch</span> -<span id="L396" class="LineNr">396 </span> 00 00 <span class="subxComment"># Xres</span> -<span id="L397" class="LineNr">397 </span><span class="subxComment"># 314</span> -<span id="L398" class="LineNr">398 </span> 00 00 <span class="subxComment"># Yres</span> -<span id="L399" class="LineNr">399 </span> 00 00 <span class="subxComment"># Wchar Ychar</span> -<span id="L400" class="LineNr">400 </span><span class="subxComment"># 318</span> -<span id="L401" class="LineNr">401 </span> 00 <span class="subxComment"># planes</span> -<span id="L402" class="LineNr">402 </span> 00 <span class="subxComment"># bpp</span> -<span id="L403" class="LineNr">403 </span> 00 <span class="subxComment"># banks</span> -<span id="L404" class="LineNr">404 </span> 00 <span class="subxComment"># memory_model</span> -<span id="L405" class="LineNr">405 </span><span class="subxComment"># 31c</span> -<span id="L406" class="LineNr">406 </span> 00 <span class="subxComment"># bank_size</span> -<span id="L407" class="LineNr">407 </span> 00 <span class="subxComment"># image_pages</span> -<span id="L408" class="LineNr">408 </span> 00 <span class="subxComment"># reserved</span> -<span id="L409" class="LineNr">409 </span><span class="subxComment"># 31f</span> -<span id="L410" class="LineNr">410 </span> 00 00 <span class="subxComment"># red_mask red_position</span> -<span id="L411" class="LineNr">411 </span> 00 00 <span class="subxComment"># green_mask green_position</span> -<span id="L412" class="LineNr">412 </span> 00 00 <span class="subxComment"># blue_mask blue_position</span> -<span id="L413" class="LineNr">413 </span> 00 00 <span class="subxComment"># rsv_mask rsv_position</span> -<span id="L414" class="LineNr">414 </span> 00 <span class="subxComment"># directcolor_attributes</span> -<span id="L415" class="LineNr">415 </span><span class="subxComment"># 328</span> -<span id="L416" class="LineNr">416 </span> 00 00 00 00 <span class="subxComment"># physbase <== linear frame buffer</span> -<span id="L417" class="LineNr">417 </span> -<span id="L418" class="LineNr">418 </span><span class="subxComment"># 32c</span> -<span id="L419" class="LineNr">419 </span><span class="subxComment"># reserved for video mode info</span> -<span id="L420" class="LineNr">420 </span> 00 00 00 00 -<span id="L421" class="LineNr">421 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L422" class="LineNr">422 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L423" class="LineNr">423 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L424" class="LineNr">424 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L425" class="LineNr">425 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L426" class="LineNr">426 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L427" class="LineNr">427 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L428" class="LineNr">428 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L429" class="LineNr">429 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L430" class="LineNr">430 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L431" class="LineNr">431 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L432" class="LineNr">432 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L379" class="LineNr">379 </span>00 00 00 00 00 00 00 00 +<span id="L380" class="LineNr">380 </span>00 00 00 00 00 00 00 00 +<span id="L381" class="LineNr">381 </span>00 00 00 00 00 00 00 00 +<span id="L382" class="LineNr">382 </span>00 00 00 00 00 00 00 00 +<span id="L383" class="LineNr">383 </span>00 00 00 00 00 00 00 00 +<span id="L384" class="LineNr">384 </span>00 00 00 00 00 00 00 00 +<span id="L385" class="LineNr">385 </span>00 00 00 00 00 00 00 00 +<span id="L386" class="LineNr">386 </span>00 00 00 00 00 00 00 00 +<span id="L387" class="LineNr">387 </span>00 00 00 00 00 00 00 00 +<span id="L388" class="LineNr">388 </span>00 00 00 00 00 00 00 00 +<span id="L389" class="LineNr">389 </span>00 00 00 00 00 00 00 00 +<span id="L390" class="LineNr">390 </span>00 00 00 00 00 00 00 00 +<span id="L391" class="LineNr">391 </span><span class="subxComment"># idt_end:</span> +<span id="L392" class="LineNr">392 </span> +<span id="L393" class="LineNr">393 </span><span class="subxComment"># offset 300 (address 0x7f00):</span> +<span id="L394" class="LineNr">394 </span><span class="subxComment"># video mode info:</span> +<span id="L395" class="LineNr">395 </span> 00 00 <span class="subxComment"># attributes</span> +<span id="L396" class="LineNr">396 </span> 00 <span class="subxComment"># winA</span> +<span id="L397" class="LineNr">397 </span> 00 <span class="subxComment"># winB</span> +<span id="L398" class="LineNr">398 </span><span class="subxComment"># 304</span> +<span id="L399" class="LineNr">399 </span> 00 00 <span class="subxComment"># granularity</span> +<span id="L400" class="LineNr">400 </span> 00 00 <span class="subxComment"># winsize</span> +<span id="L401" class="LineNr">401 </span><span class="subxComment"># 308</span> +<span id="L402" class="LineNr">402 </span> 00 00 <span class="subxComment"># segmentA</span> +<span id="L403" class="LineNr">403 </span> 00 00 <span class="subxComment"># segmentB</span> +<span id="L404" class="LineNr">404 </span><span class="subxComment"># 30c</span> +<span id="L405" class="LineNr">405 </span> 00 00 00 00 <span class="subxComment"># realFctPtr (who knows)</span> +<span id="L406" class="LineNr">406 </span><span class="subxComment"># 310</span> +<span id="L407" class="LineNr">407 </span> 00 00 <span class="subxComment"># pitch</span> +<span id="L408" class="LineNr">408 </span> 00 00 <span class="subxComment"># Xres</span> +<span id="L409" class="LineNr">409 </span><span class="subxComment"># 314</span> +<span id="L410" class="LineNr">410 </span> 00 00 <span class="subxComment"># Yres</span> +<span id="L411" class="LineNr">411 </span> 00 00 <span class="subxComment"># Wchar Ychar</span> +<span id="L412" class="LineNr">412 </span><span class="subxComment"># 318</span> +<span id="L413" class="LineNr">413 </span> 00 <span class="subxComment"># planes</span> +<span id="L414" class="LineNr">414 </span> 00 <span class="subxComment"># bpp</span> +<span id="L415" class="LineNr">415 </span> 00 <span class="subxComment"># banks</span> +<span id="L416" class="LineNr">416 </span> 00 <span class="subxComment"># memory_model</span> +<span id="L417" class="LineNr">417 </span><span class="subxComment"># 31c</span> +<span id="L418" class="LineNr">418 </span> 00 <span class="subxComment"># bank_size</span> +<span id="L419" class="LineNr">419 </span> 00 <span class="subxComment"># image_pages</span> +<span id="L420" class="LineNr">420 </span> 00 <span class="subxComment"># reserved</span> +<span id="L421" class="LineNr">421 </span><span class="subxComment"># 31f</span> +<span id="L422" class="LineNr">422 </span> 00 00 <span class="subxComment"># red_mask red_position</span> +<span id="L423" class="LineNr">423 </span> 00 00 <span class="subxComment"># green_mask green_position</span> +<span id="L424" class="LineNr">424 </span> 00 00 <span class="subxComment"># blue_mask blue_position</span> +<span id="L425" class="LineNr">425 </span> 00 00 <span class="subxComment"># rsv_mask rsv_position</span> +<span id="L426" class="LineNr">426 </span> 00 <span class="subxComment"># directcolor_attributes</span> +<span id="L427" class="LineNr">427 </span><span class="subxComment"># 328</span> +<span id="L428" class="LineNr">428 </span> 00 00 00 00 <span class="subxComment"># physbase <== linear frame buffer</span> +<span id="L429" class="LineNr">429 </span> +<span id="L430" class="LineNr">430 </span><span class="subxComment"># 32c</span> +<span id="L431" class="LineNr">431 </span><span class="subxComment"># reserved for video mode info</span> +<span id="L432" class="LineNr">432 </span> 00 00 00 00 <span id="L433" class="LineNr">433 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -<span id="L434" class="LineNr">434 </span> -<span id="L435" class="LineNr">435 </span><span class="subxComment">## the rest of this file has data</span> -<span id="L436" class="LineNr">436 </span> -<span id="L437" class="LineNr">437 </span><span class="subxComment"># offset 400 (address 0x8000):</span> -<span id="L438" class="Folded">438 </span><span class="Folded">+--161 lines: # translating keys to ASCII -----------------------------------------------------------------------------------------------------------------------------------------------</span> -<span id="L599" class="LineNr">599 </span> -<span id="L600" class="LineNr">600 </span><span class="subxComment"># offset c00 (address 0x8800)</span> -<span id="L601" class="Folded">601 </span><span class="Folded">+--236 lines: # Bitmaps for some ASCII characters (soon Unicode) ------------------------------------------------------------------------------------------------------------------------</span> -<span id="L837" class="LineNr">837 </span> -<span id="L838" class="LineNr">838 </span><span class="subxComment"># offset 1400 (address 0x9000)</span> -<span id="L839" class="LineNr">839 </span> -<span id="L840" class="LineNr">840 </span><span class="subxComment"># vim:ft=subx</span> +<span id="L434" class="LineNr">434 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L435" class="LineNr">435 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L436" class="LineNr">436 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L437" class="LineNr">437 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L438" class="LineNr">438 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L439" class="LineNr">439 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L440" class="LineNr">440 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L441" class="LineNr">441 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L442" class="LineNr">442 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L443" class="LineNr">443 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L444" class="LineNr">444 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L445" class="LineNr">445 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +<span id="L446" class="LineNr">446 </span> +<span id="L447" class="LineNr">447 </span><span class="subxComment">## the rest of this file has data</span> +<span id="L448" class="LineNr">448 </span> +<span id="L449" class="LineNr">449 </span><span class="subxComment"># offset 400 (address 0x8000):</span> +<span id="L450" class="Folded">450 </span><span class="Folded">+--161 lines: # translating keys to ASCII -----------------------------------------------------------------------------------------------------------------------------------------------</span> +<span id="L611" class="LineNr">611 </span> +<span id="L612" class="LineNr">612 </span><span class="subxComment"># offset c00 (address 0x8800)</span> +<span id="L613" class="Folded">613 </span><span class="Folded">+--236 lines: # Bitmaps for some ASCII characters (soon Unicode) ------------------------------------------------------------------------------------------------------------------------</span> +<span id="L849" class="LineNr">849 </span> +<span id="L850" class="LineNr">850 </span><span class="subxComment"># offset 1400 (address 0x9000)</span> +<span id="L851" class="LineNr">851 </span> +<span id="L852" class="LineNr">852 </span><span class="subxComment"># vim:ft=subx</span> </pre> </body> </html> |