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Turned off debug mode by default and created a Stage0_monitor in assembly, Hex conversion will be by shortly

This commit is contained in:
Jeremiah Orians 2016-06-18 19:29:24 -04:00
parent 7203ba93c7
commit 4b781d07d1
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GPG Key ID: 7457821534D2ACCD
2 changed files with 113 additions and 3 deletions
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107
stage0/stage0_monitor.s Normal file
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@ -0,0 +1,107 @@
start
LOADUI R10 0x0F ; Byte mask
LOADUI R11 1 ; Our toggle
LOADUI R13 0x600 ; Where we are starting our Stack
;; R14 will be storing our condition
FALSE R15 ; Our holder
;; Prep TAPE_01
LOADUI R0 0x1100
FOPEN_WRITE
;; Prep TAPE_02
LOADUI R0 0x1101
FOPEN_WRITE
loop
LOADUI R1 0 ; Read from tty
FGETC ; Read a Char
;; Check for Ctrl-D
CMPUI R14 R0 4
JUMP.NE R14 @.L0
CALLI R13 @finish
.L0
;; Check for EOF
CMPI R14 R0 -1
JUMP.NE R14 @.L1
CALLI R13 @finish
.L1
LOADUI R1 0x1101 ; Write to TAPE_02
FPUTC ; Print the Char
CALLI R13 @hex ; Convert it
CMPI R14 R0 0 ; Check if it is hex
JUMP.L R14 @loop ; Don't use nonhex chars
JUMP.Z R11 @.L99 ; Jump if toggled
;; Process first byte of pair
AND R15 R0 R10 ; Store First nibble
FALSE R11 ; Flip the toggle
JUMP @loop
.L99
SL0I R15 4 ; Shift our first nibble
AND R0 R0 R10 ; Mask out top
ADD R0 R0 R15 ; Combine nibbles
LOADI R11 1 ; Flip the toggle
LOADUI R1 0x1100 ; Write the combined byte
FPUTC ; To TAPE_01
JUMP @loop ; Try to get more bytes
hex
;; Deal with line comments starting with #
CMPUI R14 R0 35
JUMP.E R14 @ascii_comment
;; Deal with line comments starting with ;
CMPUI R14 R0 59
JUMP.E R14 @ascii_comment
;; Deal with all ascii less than '0'
CMPUI R14 R0 48
JUMP.L R14 @ascii_other
;; Deal with '0'-'9'
CMPUI R14 R0 57
JUMP.LE R14 @ascii_num
;; Deal with all ascii less than 'A'
CMPUI R14 R0 65
JUMP.L R14 @ascii_other
;; Deal with 'A'-'F'
CMPUI R14 R0 70
JUMP.LE R14 @ascii_high
;; Deal with all ascii less than 'a'
CMPUI R14 R0 97
JUMP.L R14 @ascii_other
;; Deal with 'a'-'f'
CMPUI R14 R0 102
JUMP.LE R14 @ascii_low
;; Ignore the rest
JUMP @ascii_other
ascii_num
SUBUI R0 R0 48
RET R13
ascii_low
SUBUI R0 R0 87
RET R13
ascii_high
SUBUI R0 R0 55
RET R13
ascii_other
TRUE R0
RET R13
ascii_comment
LOADUI R1 0 ; Read from tty
FGETC ; Read another char
CMPUI R14 R0 10 ; Stop at the end of line
LOADUI R1 0x1101 ; Write to TAPE_02
FPUTC ; The char we just read
JUMP.NE R14 @ascii_comment ; Otherwise keep looping
JUMP @ascii_other
finish
LOADUI R0 0x1100 ; Close TAPE_01
FCLOSE
LOADUI R0 0x1101 ; Close TAPE_02
FCLOSE
HALT

9
vm.c
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@ -1,5 +1,5 @@
#include "vm.h"
#define DEBUG true
//#define DEBUG true
uint32_t performance_counter;
/* Prototypes for functions in vm_instructions.c*/
@ -1693,14 +1693,17 @@ bool eval_Integer_0OPI(struct lilith* vm, struct Instruction* c)
void eval_instruction(struct lilith* vm, struct Instruction* current)
{
bool invalid = false;
fprintf(stdout, "Executing: %s\n", current->operation);
//usleep(1000);
performance_counter = performance_counter + 1;
#ifdef DEBUG
fprintf(stdout, "Executing: %s\n", current->operation);
usleep(1000);
if(1000000 == performance_counter)
{
current->raw0 = 0xFF;
}
#endif
switch(current->raw0)
{