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Implemented call insstruction...

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This commit is contained in:
xolatile
2024-07-16 11:52:08 -04:00
parent 995bb4ce4b
commit 0551425067
2 changed files with 21 additions and 15 deletions
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24
source/assembler.c
View File

@ -76,14 +76,15 @@ static void asmdirimm (form when,
static void input_at (form when,
size_index size,
next data) {
next data,
next base) {
// Input relative memory address to text sector.
asmdirrel (when, data);
input ((when != 0) && (size >= D8), (byte) 0xb0);
input ((when != 0) && (size >= D16), (byte) 0x10);
input ((when != 0) && (size >= D32), (byte) 0x40);
input ((when != 0) && (size >= D32), (byte) 0x00);
input ((when != 0) && (size >= D8), (byte) ((base >> 0) & 0xff));
input ((when != 0) && (size >= D16), (byte) ((base >> 8) & 0xff));
input ((when != 0) && (size >= D32), (byte) ((base >> 16) & 0xff));
input ((when != 0) && (size >= D32), (byte) ((base >> 24) & 0xff));
// NO DEREFERENCING
// 64-BIT SUPPORT
}
@ -316,19 +317,20 @@ static void build_move (size_index size,
input ((to == MEM) && (from == IMM), (byte) (0xc6 + (size != D8)));
input ((to == MEM) && (from == IMM), (byte) (0x05));
input_at ((to == REG) && (from == MEM), D32, source);
input_at ((to == REG) && (from == MEM), D32, source, 0);
input_by ((to == REG) && (from == IMM), size, source);
input_at ((to == MEM) && (from == REG), D32, (next) ~0);
input_at ((to == MEM) && (from == IMM), D32, (next) ~0);
input_at ((to == MEM) && (from == REG), D32, (next) ~0, (next) ~0);
input_at ((to == MEM) && (from == IMM), D32, (next) ~0, (next) ~0);
input_by ((to == MEM) && (from == IMM), size, source);
input_at ((to == REG) && (from == REL), D32, source);
input_at ((to == REG) && (from == REL), D32, source, 0x4010b0);
}
static void build_call (type_index from,
next source) {
// call
(void) from;
(void) source;
input (from == REL, (byte) 0xe8);
input_at (from == REL, D32, source, (next) -(text_sector_size + 4));
}
static void assemble_clean_up (void) {

12
tool/tester.c
View File

@ -17,6 +17,7 @@ static unsigned int array [] = {
NOP, MOV, D32, REG, R6, REL, 1,
NOP, MOV, D32, REG, R2, IMM, 20,
NOP, SYSCALL,
NOP, CALL, REL, 3,
NOP, MOV, D32, REG, R0, IMM, 1,
NOP, MOV, D32, REG, R7, IMM, 1,
NOP, MOV, D32, REG, R6, REL, 2,
@ -25,6 +26,13 @@ static unsigned int array [] = {
NOP, MOV, D32, REG, R0, IMM, 60,
NOP, MOV, D32, REG, R7, IMM, 60,
NOP, SYSCALL,
ASMDIRMEM, 3,
NOP, MOV, D32, REG, R0, IMM, 1,
NOP, MOV, D32, REG, R7, IMM, 1,
NOP, MOV, D32, REG, R6, REL, 0,
NOP, MOV, D32, REG, R2, IMM, 12,
NOP, SYSCALL,
NOP, RETN,
NOP,
ASMDIRMEM, 0,
ASMDIRIMM, D8, 12, 72, 101, 121, 111, 32, 119, 111, 114, 108, 100, 33, 10,
@ -38,8 +46,6 @@ static unsigned int array [] = {
int main (void) {
FILE * file = NULL;
text_sector_byte = malloc (1024UL * 1024UL * sizeof (* text_sector_byte));
file = fopen ("run_me_please", "w+");
assemble ((unsigned int) (sizeof (array) / sizeof (array [0])), array);
@ -56,8 +62,6 @@ int main (void) {
fwrite (text_sector_byte, 1UL, (size_t) text_sector_size, file);
free (text_sector_byte);
fclose (file);
return (0);